Commit Graph

2125 Commits

Author SHA1 Message Date
Jakub Kicinski
5c39f26e67 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflict in CAN, keep the net-next + the byteswap wrapper.

Conflicts:
	drivers/net/can/usb/gs_usb.c

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-27 18:25:27 -08:00
Enric Balletbo i Serra
cc6576029a soc: mediatek: mmsys: Use devm_platform_ioremap_resource()
For the common platform_get_resource()+devm_platform_ioremap() combination,
there is a helper, so use it and make the code a bit more compact.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://lore.kernel.org/r/20201006193320.405529-3-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-28 00:37:12 +01:00
Yongqiang Niu
51c0e618b2 soc / drm: mediatek: Move DDP component defines into mtk-mmsys.h
MMSYS is the driver which controls the routing of these DDP components,
so the definition of the mtk_ddp_comp_id enum should be placed in mtk-mmsys.h

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://lore.kernel.org/r/20201006193320.405529-2-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-28 00:34:23 +01:00
Neal Liu
0890beb226 soc: mediatek: add mt6779 devapc driver
MediaTek bus fabric provides TrustZone security support and data
protection to prevent slaves from being accessed by unexpected
masters.
The security violation is logged and sent to the processor for
further analysis or countermeasures.

Any occurrence of security violation would raise an interrupt, and
it will be handled by mtk-devapc driver. The violation
information is printed in order to find the murderer.

Signed-off-by: Neal Liu <neal.liu@mediatek.com>
Link: https://lore.kernel.org/r/1602732039-12179-3-git-send-email-neal.liu@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-28 00:28:25 +01:00
Chun-Kuang Hu
a69dcdfc2d soc / drm: mediatek: cmdq: Remove timeout handler in helper function
For each client driver, its timeout handler need to dump hardware register
or its state machine information, and their way to detect timeout are
also different, so remove timeout handler in helper function and
let client driver implement its own timeout handler.

Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20201102000438.29225-1-chunkuang.hu@kernel.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 23:35:34 +01:00
Arnd Bergmann
718e43b5f8 Linux 5.10-rc2
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Backmerge tag 'v5.10-rc2' into arm/drivers

The SCMI pull request for the arm/drivers branch requires v5.10-rc2
because of dependencies with other git trees, so merge that in here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-27 21:04:53 +01:00
Arnd Bergmann
3afd2823c1 soc/tegra: Changes for v5.11-rc1
This contains a couple of warning fixes and a fix for a mostly harmless
 bug in the process ID retrieval code.
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Merge tag 'tegra-for-5.11-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

soc/tegra: Changes for v5.11-rc1

This contains a couple of warning fixes and a fix for a mostly harmless
bug in the process ID retrieval code.

* tag 'tegra-for-5.11-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: fuse: Fix index bug in get_process_id
  soc: tegra: fuse: speedo-tegra210: Remove a group of set but unused variables
  soc: tegra: fuse: speedo-tegra124: Remove some set but unused variables

Link: https://lore.kernel.org/r/20201127144329.124891-2-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-27 17:56:10 +01:00
Arnd Bergmann
72c7b08570 Renesas driver updates for v5.11 (take two)
- Stop using __raw_*() I/O accessors.
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Merge tag 'renesas-drivers-for-v5.11-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/drivers

Renesas driver updates for v5.11 (take two)

  - Stop using __raw_*() I/O accessors.

* tag 'renesas-drivers-for-v5.11-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: rmobile-sysc: Stop using __raw_*() I/O accessors

Link: https://lore.kernel.org/r/20201127132155.77418-4-geert@linux-m68k.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-27 17:55:09 +01:00
Geert Uytterhoeven
8b6bed6784 soc: renesas: rmobile-sysc: Stop using __raw_*() I/O accessors
There is no reason to keep on using the __raw_{read,write}l() I/O
accessors in Renesas ARM driver code.  Switch to using the plain
{read,write}l() I/O accessors, to have a chance that this works on
big-endian.

Suggested-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201119125214.4065925-1-geert+renesas@glider.be
2020-11-27 14:09:37 +01:00
Weiyi Lu
a49d5e7a89 soc: mediatek: pm-domains: Add support for mt8192
Add the needed board data to support mt8192 SoC.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Weiyi Lu <weiyi.lu@mediatek.com>
Link: https://lore.kernel.org/r/20201030113622.201188-17-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:43 +01:00
Weiyi Lu
c1f3163d8f soc: mediatek: pm-domains: Add default power off flag
For some power domain, like conn on MT8192, it should be default OFF.
Because the power on/off control relies the function of connectivity chip
and its firmware. And if project choose other chip vendor solution,
those necessary connectivity functions will not provided.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-16-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:43 +01:00
Matthias Brugger
eb9fa767fb soc: mediatek: pm-domains: Add support for mt8183
Add the needed board data to support mt8183 SoC.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-12-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:43 +01:00
Matthias Brugger
1d4597fa18 soc: mediatek: pm-domains: Allow bus protection to ignore clear ack
In some cases the hardware does not create an acknowledgment of the
bus protection clearing. Add a flag to the bus protection indicating
that a clear event will be ignored.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-10-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:43 +01:00
Matthias Brugger
123e8b4fd0 soc: mediatek: pm-domains: Add subsystem clocks
For the bus protection operations, some subsystem clocks need to be enabled
before releasing the protection. This patch identifies the subsystem clocks
by it's name.

Suggested-by: Weiyi Lu <weiyi.lu@mediatek.com>
[Adapted the patch to the mtk-pm-domains driver]
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-9-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:43 +01:00
Matthias Brugger
58a17e310a soc: mediatek: pm-domains: Add extra sram control
For some power domains like vpu_core on MT8183 whose sram need to do clock
and internal isolation while power on/off sram. We add a cap
"MTK_SCPD_SRAM_ISO" to judge if we need to do the extra sram isolation
control or not.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-8-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:43 +01:00
Matthias Brugger
f414854c88 soc: mediatek: pm-domains: Add SMI block as bus protection block
Apart from the infracfg block, the SMI block is used to enable the bus
protection for some power domains. Add support for this block.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-7-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:42 +01:00
Matthias Brugger
928296ea5d soc: mediatek: pm_domains: Make bus protection generic
Bus protection is not exclusively done by calling the infracfg misc driver.
Make the calls for setting and clearing the bus protection generic so
that we can use other blocks for it as well.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-6-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:42 +01:00
Matthias Brugger
916d6d71ba soc: mediatek: pm-domains: Add bus protection protocol
Bus protection will need to update more then one register
in infracfg. Add support for several operations.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-5-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:42 +01:00
Enric Balletbo i Serra
59b644b01c soc: mediatek: Add MediaTek SCPSYS power domains
The System Control Processor System (SCPSYS) has several power management
related tasks in the system. This driver implements support to handle
the different power domains supported in order to meet high performance
and low power requirements.

Co-developed-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-3-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-11-27 12:04:42 +01:00
Arnd Bergmann
3a18293e4a NXP/FSL SoC driver fix for 5.10
DPAA2 DPIO driver
 - Fix non-static cpumask for irq affinity setting
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Merge tag 'soc-fsl-fix-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/fixes

NXP/FSL SoC driver fix for 5.10

DPAA2 DPIO driver
- Fix non-static cpumask for irq affinity setting

* tag 'soc-fsl-fix-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: dpio: Get the cpumask through cpumask_of(cpu)

Link: https://lore.kernel.org/r/20201125165922.15487-1-leoyang.li@nxp.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-26 22:07:22 +01:00
Arnd Bergmann
8f2685c9c4 Memory controller drivers for v5.11 - Tegra SoC
There is a bigger work from Dmitry Osipenko around Tegra SoC memory
 controller drivers, mostly towards adding interconnect support and
 integration with devfreq.  This work touches all Tegra memory controller
 drivers and also few other SoC-related parts.  It's not yet finished but
 the intermediate stage seems ready to merge.
 
 Beside that Tegra 210 memory controller got few fixes and received new
 swgroups (work of Nicolin Chen).
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Merge tag 'memory-controller-drv-tegra-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers

Memory controller drivers for v5.11 - Tegra SoC

There is a bigger work from Dmitry Osipenko around Tegra SoC memory
controller drivers, mostly towards adding interconnect support and
integration with devfreq.  This work touches all Tegra memory controller
drivers and also few other SoC-related parts.  It's not yet finished but
the intermediate stage seems ready to merge.

Beside that Tegra 210 memory controller got few fixes and received new
swgroups (work of Nicolin Chen).

* tag 'memory-controller-drv-tegra-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: (38 commits)
  memory: tegra30-emc: Remove unnecessary of_node_put in tegra_emc_probe
  memory: tegra: Complete tegra210_swgroups
  memory: tegra30-emc: Continue probing if timings are missing in device-tree
  memory: tegra30-emc: Make driver modular
  memory: tegra30: Add FIFO sizes to memory clients
  memory: tegra20-emc: Add devfreq support
  memory: tegra20-emc: Remove IRQ number from error message
  memory: tegra20-emc: Factor out clk initialization
  memory: tegra20-emc: Use dev_pm_opp_set_clkname()
  memory: tegra: Correct stub of devm_tegra_memory_controller_get()
  memory: tegra20: Support interconnect framework
  memory: tegra20-emc: Continue probing if timings are missing in device-tree
  memory: tegra20-emc: Make driver modular
  memory: tegra-mc: Add interconnect framework
  memory: tegra: Add missing latency allowness entry for Page Table Cache
  memory: tegra: Remove superfluous error messages around platform_get_irq()
  memory: tegra: Use devm_platform_ioremap_resource()
  memory: tegra: Add and use devm_tegra_memory_controller_get()
  dt-bindings: host1x: Document new interconnect properties
  dt-bindings: tegra30-actmon: Document OPP and interconnect properties
  ...

Link: https://lore.kernel.org/r/20201126191241.23302-1-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-26 22:05:15 +01:00
Arnd Bergmann
ba622a3e74 NXP/FSL SoC driver updates for v5.11
- Add RCPM errata workaround for A-008646 on LS1021A
 - Various W=1 warning fixes for fsl/soc drivers
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Merge tag 'soc-fsl-next-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.11

- Add RCPM errata workaround for A-008646 on LS1021A
- Various W=1 warning fixes for fsl/soc drivers

* tag 'soc-fsl-next-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: handle RCPM errata A-008646 on SoC LS1021A
  soc: fsl: qbman: qman: Remove unused variable 'dequeue_wq'
  soc: fsl: qe: qe_common: Fix misnamed function attribute 'addr'
  soc: fsl: dpio: qbman-portal: Fix a bunch of kernel-doc misdemeanours

Link: https://lore.kernel.org/r/20201125165913.15441-1-leoyang.li@nxp.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-26 22:00:55 +01:00
Vinod Koul
9c45662675 soc: qcom: rpmhpd: Add SDX55 power domains
This adds the power domains found in SDX55 SoC. Downstream code tells me
that we have 3 power domains so add them

Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20201126092711.1084518-2-vkoul@kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-26 11:50:31 -06:00
Maulik Shah
0924dad5d4 soc: qcom: rpmh: Use __fill_rpmh_msg API during rpmh_write()
Use __fill_rpmh_msg API during rpmh_write(). This allows to
remove duplication of code in error checking, copying commands
and setting message state.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Link: https://lore.kernel.org/r/1606379490-4052-1-git-send-email-mkshah@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-26 11:43:00 -06:00
Maxime Ripard
e24f7fac3b soc: sunxi: Fix compilation of sunxi_mbus
dma_direct_set_offset has been moved from dma-mapping.h to
dma-map-ops.h, but our driver hasn't been updated resulting in a build
breakage. Let's change the header to fix the build.

Fixes: 16fee29b07 ("dma-mapping: remove the dma_direct_set_offset export")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20201124103546.839711-1-maxime@cerno.tech'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-24 11:58:33 +01:00
Hao Si
2663b33885 soc: fsl: dpio: Get the cpumask through cpumask_of(cpu)
The local variable 'cpumask_t mask' is in the stack memory, and its address
is assigned to 'desc->affinity' in 'irq_set_affinity_hint()'.
But the memory area where this variable is located is at risk of being
modified.

During LTP testing, the following error was generated:

Unable to handle kernel paging request at virtual address ffff000012e9b790
Mem abort info:
  ESR = 0x96000007
  Exception class = DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
Data abort info:
  ISV = 0, ISS = 0x00000007
  CM = 0, WnR = 0
swapper pgtable: 4k pages, 48-bit VAs, pgdp = 0000000075ac5e07
[ffff000012e9b790] pgd=00000027dbffe003, pud=00000027dbffd003,
pmd=00000027b6d61003, pte=0000000000000000
Internal error: Oops: 96000007 [#1] PREEMPT SMP
Modules linked in: xt_conntrack
Process read_all (pid: 20171, stack limit = 0x0000000044ea4095)
CPU: 14 PID: 20171 Comm: read_all Tainted: G    B   W
Hardware name: NXP Layerscape LX2160ARDB (DT)
pstate: 80000085 (Nzcv daIf -PAN -UAO)
pc : irq_affinity_hint_proc_show+0x54/0xb0
lr : irq_affinity_hint_proc_show+0x4c/0xb0
sp : ffff00001138bc10
x29: ffff00001138bc10 x28: 0000ffffd131d1e0
x27: 00000000007000c0 x26: ffff8025b9480dc0
x25: ffff8025b9480da8 x24: 00000000000003ff
x23: ffff8027334f8300 x22: ffff80272e97d000
x21: ffff80272e97d0b0 x20: ffff8025b9480d80
x19: ffff000009a49000 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000
x15: 0000000000000000 x14: 0000000000000000
x13: 0000000000000000 x12: 0000000000000040
x11: 0000000000000000 x10: ffff802735b79b88
x9 : 0000000000000000 x8 : 0000000000000000
x7 : ffff000009a49848 x6 : 0000000000000003
x5 : 0000000000000000 x4 : ffff000008157d6c
x3 : ffff00001138bc10 x2 : ffff000012e9b790
x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 irq_affinity_hint_proc_show+0x54/0xb0
 seq_read+0x1b0/0x440
 proc_reg_read+0x80/0xd8
 __vfs_read+0x60/0x178
 vfs_read+0x94/0x150
 ksys_read+0x74/0xf0
 __arm64_sys_read+0x24/0x30
 el0_svc_common.constprop.0+0xd8/0x1a0
 el0_svc_handler+0x34/0x88
 el0_svc+0x10/0x14
Code: f9001bbf 943e0732 f94066c2 b4000062 (f9400041)
---[ end trace b495bdcb0b3b732b ]---
Kernel panic - not syncing: Fatal exception
SMP: stopping secondary CPUs
SMP: failed to stop secondary CPUs 0,2-4,6,8,11,13-15
Kernel Offset: disabled
CPU features: 0x0,21006008
Memory Limit: none
---[ end Kernel panic - not syncing: Fatal exception ]---

Fix it by using 'cpumask_of(cpu)' to get the cpumask.

Signed-off-by: Hao Si <si.hao@zte.com.cn>
Signed-off-by: Lin Chen <chen.lin5@zte.com.cn>
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-11-23 19:27:45 -06:00
Biwen Li
e95f287dee soc: fsl: handle RCPM errata A-008646 on SoC LS1021A
Hardware issue:
- Reading register RCPM_IPPDEXPCR1 always return zero, this causes
  system firmware could not get correct information and wrongly do
  clock gating for all wakeup source IP during system suspend. Then
  those IPs will never get chance to wake system.

Workaround:
- Copy register RCPM_IPPDEXPCR1's setting to register SCFG_SPARECR8
  to allow system firmware's psci method read it and do things accordingly.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-11-23 19:16:02 -06:00
Lee Jones
3d1d8f2943 soc: fsl: qbman: qman: Remove unused variable 'dequeue_wq'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/fsl/qbman/qman.c: In function ‘qman_shutdown_fq’:
 drivers/soc/fsl/qbman/qman.c:2700:8: warning: variable ‘dequeue_wq’ set but not used [-Wunused-but-set-variable]

Cc: Li Yang <leoyang.li@nxp.com>
Cc: YueHaibing <yuehaibing@huawei.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-11-23 17:20:08 -06:00
Lee Jones
0d0807bc2e soc: fsl: qe: qe_common: Fix misnamed function attribute 'addr'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/fsl/qe/qe_common.c:237: warning: Function parameter or member 'addr' not described in 'cpm_muram_dma'
 drivers/soc/fsl/qe/qe_common.c:237: warning: Excess function parameter 'offset' description in 'cpm_muram_dma'

Cc: Qiang Zhao <qiang.zhao@nxp.com>
Cc: Li Yang <leoyang.li@nxp.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: act <dmalek@jlc.net>
Cc: Dan Malek <dan@embeddedalley.com>
Cc: "Software, Inc" <source@mvista.com>
Cc: Vitaly Bordug <vbordug@ru.mvista.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-11-23 17:19:33 -06:00
Lee Jones
b636d36e3e soc: fsl: dpio: qbman-portal: Fix a bunch of kernel-doc misdemeanours
Fixes the following W=1 kernel build warning(s):

 drivers/soc/fsl/dpio/qbman-portal.c:430: warning: Function parameter or member 'inhibit' not described in 'qbman_swp_interrupt_set_inhibit'
 drivers/soc/fsl/dpio/qbman-portal.c:430: warning: Excess function parameter 'mask' description in 'qbman_swp_interrupt_set_inhibit'
 drivers/soc/fsl/dpio/qbman-portal.c:518: warning: Function parameter or member 'd' not described in 'qbman_eq_desc_clear'
 drivers/soc/fsl/dpio/qbman-portal.c:529: warning: Function parameter or member 'respond_success' not described in 'qbman_eq_desc_set_no_orp'
 drivers/soc/fsl/dpio/qbman-portal.c:529: warning: Excess function parameter 'response_success' description in 'qbman_eq_desc_set_no_orp'
 drivers/soc/fsl/dpio/qbman-portal.c:941: warning: Function parameter or member 's' not described in 'qbman_swp_push_get'
 drivers/soc/fsl/dpio/qbman-portal.c:941: warning: Excess function parameter 'p' description in 'qbman_swp_push_get'
 drivers/soc/fsl/dpio/qbman-portal.c:955: warning: Function parameter or member 's' not described in 'qbman_swp_push_set'
 drivers/soc/fsl/dpio/qbman-portal.c:955: warning: Excess function parameter 'p' description in 'qbman_swp_push_set'
 drivers/soc/fsl/dpio/qbman-portal.c:1052: warning: Function parameter or member 'd' not described in 'qbman_pull_desc_set_fq'
 drivers/soc/fsl/dpio/qbman-portal.c:1065: warning: Function parameter or member 'd' not described in 'qbman_pull_desc_set_wq'
 drivers/soc/fsl/dpio/qbman-portal.c:1079: warning: Function parameter or member 'd' not described in 'qbman_pull_desc_set_channel'
 drivers/soc/fsl/dpio/qbman-portal.c:1403: warning: Function parameter or member 'd' not described in 'qbman_release_desc_clear'
 drivers/soc/fsl/dpio/qbman-portal.c:1412: warning: Function parameter or member 'd' not described in 'qbman_release_desc_set_bpid'
 drivers/soc/fsl/dpio/qbman-portal.c:1412: warning: Function parameter or member 'bpid' not described in 'qbman_release_desc_set_bpid'
 drivers/soc/fsl/dpio/qbman-portal.c:1421: warning: Function parameter or member 'd' not described in 'qbman_release_desc_set_rcdi'
 drivers/soc/fsl/dpio/qbman-portal.c:1421: warning: Function parameter or member 'enable' not described in 'qbman_release_desc_set_rcdi'

Cc: Roy Pledge <Roy.Pledge@nxp.com>
Cc: Li Yang <leoyang.li@nxp.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-11-23 17:17:34 -06:00
Arnd Bergmann
4ce4be5d28 Samsung SoC drivers changes for v5.11
1. Limit the big.LITTLE cpuidle driver to Peach-Pit/Pi Chromebooks only
    because these are the only platforms were the driver works properly.
 2. Convert the Exynos CLKOUT driver to a full module which solves
    boot-probe ordering issues (e.g. if device nodes in DTS are moved).
    This also brings modularization and compile testing.
 3. Few minor cleanups in documentation and code.
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Merge tag 'samsung-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/drivers

Samsung SoC drivers changes for v5.11

1. Limit the big.LITTLE cpuidle driver to Peach-Pit/Pi Chromebooks only
   because these are the only platforms were the driver works properly.
2. Convert the Exynos CLKOUT driver to a full module which solves
   boot-probe ordering issues (e.g. if device nodes in DTS are moved).
   This also brings modularization and compile testing.
3. Few minor cleanups in documentation and code.

* tag 'samsung-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  clk: samsung: allow building the clkout driver as module
  soc: samsung: s3c-pm-check: Fix incorrectly named variable 'val'
  soc: samsung: exynos5422-asv: remove unneeded semicolon
  serial: s3c: Update path of Samsung S3C machine file
  Documentation: Update paths of Samsung S3C machine files
  clk: samsung: exynos-clkout: convert to module driver
  soc: samsung: exynos-pmu: instantiate clkout driver as MFD
  cpuidle: big.LITTLE: enable driver only on Peach-Pit/Pi Chromebooks

Link: https://lore.kernel.org/r/20201113162211.10020-1-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-23 21:44:35 +01:00
Arnd Bergmann
d4f97711b3 Allwinner MBUS and DMA-ops rework
The Allwinner SoCs have a number of high-bandwidth devices connected to
 a memory bus with a different RAM mapping than the CPU.
 
 This was addressed before through drivers setting the DMA offsets
 directly, and subsequently changed to calls to dma_direct_set_offset.
 However that wasn't really meant to be exported to modules (and thus
 drivers). The duplicated code also led to small inconsistencies across
 drivers in how we dealt with DT backward compatibility.
 
 Move all that DMA setup code into a platform bus notifier to share that
 code and remove the export on dma_direct_set_offset.
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Merge tag 'sunxi-rework-mbus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mripard/linux into arm/drivers

Allwinner MBUS and DMA-ops rework

The Allwinner SoCs have a number of high-bandwidth devices connected to
a memory bus with a different RAM mapping than the CPU.

This was addressed before through drivers setting the DMA offsets
directly, and subsequently changed to calls to dma_direct_set_offset.
However that wasn't really meant to be exported to modules (and thus
drivers). The duplicated code also led to small inconsistencies across
drivers in how we dealt with DT backward compatibility.

Move all that DMA setup code into a platform bus notifier to share that
code and remove the export on dma_direct_set_offset.

* tag 'sunxi-rework-mbus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  dma-mapping: remove the dma_direct_set_offset export
  media: sun8i-di: Remove the call to of_dma_configure
  media: cedrus: Remove the MBUS quirks
  media: sun6i: Remove the MBUS quirks
  media: sun4i: Remove the MBUS quirks
  drm/sun4i: backend: Remove the MBUS quirks
  soc: sunxi: Deal with the MBUS DMA offsets in a central place
  drm/sun4i: backend: Fix probe failure with multiple backends

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-23 17:20:46 +01:00
Rikard Falkeborn
0af104d729 soc: qcom: pdr: Constify static qmi structs
Their only usage is to pass their address to qmi_handle_init() which
accepts const pointers to both qmi_ops and qmi_msg_handler. Make them
const to allow the compiler to put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20201122232818.32072-1-rikard.falkeborn@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-22 23:06:23 -06:00
Tom Rix
a161ffe4b8 soc: qcom: initialize local variable
clang static analysis reports this problem

pdr_interface.c:596:6: warning: Branch condition evaluates
  to a garbage value
        if (!req.service_path[0])
            ^~~~~~~~~~~~~~~~~~~~

This check that req.service_path was set in an earlier loop.
However req is a stack variable and its initial value
is undefined.

So initialize req to 0.

Fixes: fbe639b44a ("soc: qcom: Introduce Protection Domain Restart helpers")
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20200819184637.15648-1-trix@redhat.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-21 21:51:42 -06:00
Vladimir Lypak
903b08340b soc: qcom: socinfo: add soc ids for msm8953 variants
Add SoC IDs for MSM8953, APQ8053, SDM(SDA)450, SDM(SDA)632.

Signed-off-by: Vladimir Lypak <junak.pub@gmail.com>
Link: https://lore.kernel.org/r/20201004082223.324019-1-junak.pub@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-21 21:29:54 -06:00
Roja Rani Yarubandi
c16756c118 soc: qcom: geni: Remove "iova" check
Remove "iova" check from geni_se_tx_dma_unprep and geni_se_rx_dma_unprep
functions as checking with dma_mapping_error() is enough.

Signed-off-by: Roja Rani Yarubandi <rojay@codeaurora.org>
Link: https://lore.kernel.org/r/20201030145959.505-2-rojay@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-21 21:26:19 -06:00
Zhihao Cheng
4cba398f37 drivers: soc: ti: knav_qmss_queue: Fix error return code in knav_queue_probe
Fix to return the error code from of_get_child_by_name() instaed of 0
in knav_queue_probe().

Fixes: 41f93af900 ("soc: ti: add Keystone Navigator QMSS driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:38 -08:00
Zhang Qilong
b4fa73358c soc: ti: Fix reference imbalance in knav_dma_probe
The patch fix two reference leak.

  1) pm_runtime_get_sync will increment pm usage counter even it
     failed. Forgetting to call put operation will result in
     reference leak.

  2) The pm_runtime_enable will increase power disable depth. Thus
     a pairing decrement is needed on the error handling path to
     keep it balanced.

We fix it by: 1) adding call pm_runtime_put_noidle or
pm_runtime_put_sync in error handling. 2) adding pm_runtime_disable
in error handling, to keep usage counter and disable depth balanced.

Fixes: 88139ed030 ("soc: ti: add Keystone Navigator DMA support")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:37 -08:00
Grzegorz Jaszczyk
8465c7d100 soc: ti: pruss: Remove wrong check against *get_match_data return value
Since the of_device_get_match_data() doesn't return error code, remove
wrong IS_ERR test. Proper check against NULL pointer is already done
later before usage: if (data && data->...).

Additionally, proceeding with empty device data is valid (e.g. in case
of "ti,am3356-pruss").

Reported-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:25 -08:00
Nishanth Menon
e83b2358ab soc: ti: Kconfig: Drop ARM64 SoC specific configs
With the integration of chip-id detection scheme in kernel[1], there
is no specific need to maintain multitudes of SoC specific config
options, discussed as per [2], we have deprecated the usage in other
places for v5.10-rc1. Drop the configuration for the follow on kernel.

[1] drivers/soc/ti/k3-socinfo.c commit 907a2b7e2f ("soc: ti: add k3 platforms chipid module driver")

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:01 -08:00
Lee Jones
50883affe1 soc: ti: k3-ringacc: Provide documentation for 'k3_ring's 'state'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/ti/k3-ringacc.c:163: warning: Function parameter or member 'state' not described in 'k3_ring'

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:01 -08:00
Lee Jones
7be1c9c1c0 soc: ti: wkup_m3_ipc: Document 'm3_ipc' parameter throughout
Fixes the following W=1 kernel build warning(s):

 drivers/soc/ti/wkup_m3_ipc.c:227: warning: Function parameter or member 'm3_ipc' not described in 'wkup_m3_set_mem_type'
 drivers/soc/ti/wkup_m3_ipc.c:236: warning: Function parameter or member 'm3_ipc' not described in 'wkup_m3_set_resume_address'
 drivers/soc/ti/wkup_m3_ipc.c:248: warning: Function parameter or member 'm3_ipc' not described in 'wkup_m3_request_pm_status'
 drivers/soc/ti/wkup_m3_ipc.c:268: warning: Function parameter or member 'm3_ipc' not described in 'wkup_m3_prepare_low_power'
 drivers/soc/ti/wkup_m3_ipc.c:322: warning: Function parameter or member 'm3_ipc' not described in 'wkup_m3_finish_low_power'
 drivers/soc/ti/wkup_m3_ipc.c:369: warning: Function parameter or member 'm3_ipc' not described in 'wkup_m3_set_rtc_only'
 drivers/soc/ti/wkup_m3_ipc.c:369: warning: Excess function parameter 'wkup_m3_wakeup' description in 'wkup_m3_set_rtc_only'

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:01 -08:00
Lee Jones
edac869ed0 soc: ti: pm33xx: Remove set but unused variable 'ret'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/ti/pm33xx.c: In function ‘am33xx_do_sram_idle’:
 drivers/soc/ti/pm33xx.c:138:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:01 -08:00
Lee Jones
ed93a9e2a1 soc: ti: knav_dma: Fix a kernel function doc formatting issue
Fixes the following W=1 kernel build warning(s):

 drivers/soc/ti/knav_dma.c:507: warning: Function parameter or member 'channel' not described in 'knav_dma_close_channel'

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Sandeep Nair <sandeep_n@ti.com>
Cc: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:00 -08:00
Lee Jones
e8ebf41196 soc: ti: knav_qmss_queue: Fix a whole host of function documentation issues
Fixes the following W=1 kernel build warning(s):

 drivers/soc/ti/knav_qmss_queue.c:528: warning: Function parameter or member 'flags' not described in 'knav_queue_open'
 drivers/soc/ti/knav_qmss_queue.c:528: warning: Function parameter or member 'id' not described in 'knav_queue_open'
 drivers/soc/ti/knav_qmss_queue.c:528: warning: Function parameter or member 'name' not described in 'knav_queue_open'
 drivers/soc/ti/knav_qmss_queue.c:551: warning: Excess function parameter 'qh' description in 'knav_queue_close'
 drivers/soc/ti/knav_qmss_queue.c:551: warning: Function parameter or member 'qhandle' not described in 'knav_queue_close'
 drivers/soc/ti/knav_qmss_queue.c:583: warning: Excess function parameter 'qh' description in 'knav_queue_device_control'
 drivers/soc/ti/knav_qmss_queue.c:583: warning: Function parameter or member 'arg' not described in 'knav_queue_device_control'
 drivers/soc/ti/knav_qmss_queue.c:583: warning: Function parameter or member 'cmd' not described in 'knav_queue_device_control'
 drivers/soc/ti/knav_qmss_queue.c:583: warning: Function parameter or member 'qhandle' not described in 'knav_queue_device_control'
 drivers/soc/ti/knav_qmss_queue.c:635: warning: Excess function parameter 'data' description in 'knav_queue_push'
 drivers/soc/ti/knav_qmss_queue.c:635: warning: Excess function parameter 'qh' description in 'knav_queue_push'
 drivers/soc/ti/knav_qmss_queue.c:635: warning: Function parameter or member 'dma' not described in 'knav_queue_push'
 drivers/soc/ti/knav_qmss_queue.c:635: warning: Function parameter or member 'flags' not described in 'knav_queue_push'
 drivers/soc/ti/knav_qmss_queue.c:635: warning: Function parameter or member 'qhandle' not described in 'knav_queue_push'
 drivers/soc/ti/knav_qmss_queue.c:635: warning: Function parameter or member 'size' not described in 'knav_queue_push'
 drivers/soc/ti/knav_qmss_queue.c:655: warning: Excess function parameter 'qh' description in 'knav_queue_pop'
 drivers/soc/ti/knav_qmss_queue.c:655: warning: Function parameter or member 'qhandle' not described in 'knav_queue_pop'
 drivers/soc/ti/knav_qmss_queue.c:655: warning: Function parameter or member 'size' not described in 'knav_queue_pop'
 drivers/soc/ti/knav_qmss_queue.c:759: warning: Function parameter or member 'name' not described in 'knav_pool_create'
 drivers/soc/ti/knav_qmss_queue.c:759: warning: Function parameter or member 'num_desc' not described in 'knav_pool_create'
 drivers/soc/ti/knav_qmss_queue.c:759: warning: Function parameter or member 'region_id' not described in 'knav_pool_create'
 drivers/soc/ti/knav_qmss_queue.c:862: warning: Excess function parameter 'pool' description in 'knav_pool_destroy'
 drivers/soc/ti/knav_qmss_queue.c:862: warning: Function parameter or member 'ph' not described in 'knav_pool_destroy'
 drivers/soc/ti/knav_qmss_queue.c:892: warning: Excess function parameter 'pool' description in 'knav_pool_desc_get'
 drivers/soc/ti/knav_qmss_queue.c:892: warning: Function parameter or member 'ph' not described in 'knav_pool_desc_get'
 drivers/soc/ti/knav_qmss_queue.c:911: warning: Excess function parameter 'pool' description in 'knav_pool_desc_put'
 drivers/soc/ti/knav_qmss_queue.c:911: warning: Function parameter or member 'desc' not described in 'knav_pool_desc_put'
 drivers/soc/ti/knav_qmss_queue.c:911: warning: Function parameter or member 'ph' not described in 'knav_pool_desc_put'
 drivers/soc/ti/knav_qmss_queue.c:931: warning: Excess function parameter 'pool' description in 'knav_pool_desc_map'
 drivers/soc/ti/knav_qmss_queue.c:931: warning: Function parameter or member 'desc' not described in 'knav_pool_desc_map'
 drivers/soc/ti/knav_qmss_queue.c:931: warning: Function parameter or member 'dma' not described in 'knav_pool_desc_map'
 drivers/soc/ti/knav_qmss_queue.c:931: warning: Function parameter or member 'dma_sz' not described in 'knav_pool_desc_map'
 drivers/soc/ti/knav_qmss_queue.c:931: warning: Function parameter or member 'ph' not described in 'knav_pool_desc_map'
 drivers/soc/ti/knav_qmss_queue.c:931: warning: Function parameter or member 'size' not described in 'knav_pool_desc_map'
 drivers/soc/ti/knav_qmss_queue.c:956: warning: Excess function parameter 'pool' description in 'knav_pool_desc_unmap'
 drivers/soc/ti/knav_qmss_queue.c:956: warning: Function parameter or member 'dma' not described in 'knav_pool_desc_unmap'
 drivers/soc/ti/knav_qmss_queue.c:956: warning: Function parameter or member 'dma_sz' not described in 'knav_pool_desc_unmap'
 drivers/soc/ti/knav_qmss_queue.c:956: warning: Function parameter or member 'ph' not described in 'knav_pool_desc_unmap'
 drivers/soc/ti/knav_qmss_queue.c:975: warning: Excess function parameter 'pool' description in 'knav_pool_count'
 drivers/soc/ti/knav_qmss_queue.c:975: warning: Function parameter or member 'ph' not described in 'knav_pool_count'

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Sandeep Nair <sandeep_n@ti.com>
Cc: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:00 -08:00
Lee Jones
e72501099c soc: ti: knav_qmss_queue: Remove set but unchecked variable 'ret'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/ti/knav_qmss_queue.c: In function ‘knav_setup_queue_pools’:
 drivers/soc/ti/knav_qmss_queue.c:1310:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Sandeep Nair <sandeep_n@ti.com>
Cc: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:00 -08:00
Tony Lindgren
fd79aebe5f soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted
If a rstctrl reset bit is already deasserted, we can just bail out early
not wait for rstst to clear. Otherwise we can have deassert fail for
already deasserted resets.

Fixes: c5117a78dd ("soc: ti: omap-prm: poll for reset complete during de-assert")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:00 -08:00
Zhang Qilong
ec8684847d soc: ti: knav_qmss: fix reference leak in knav_queue_probe
pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to pm_runtime_put_noidle will result in
reference leak in knav_queue_probe, so we should fix it.

Fixes: 41f93af900 ("soc: ti: add Keystone Navigator QMSS driver")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-21 19:22:00 -08:00
Souradeep Chowdhury
ded5ed04d8 soc: qcom: llcc: Add configuration data for SM8150
Add LLCC configuration data for SM8150 SoC which controls
LLCC behaviour.

Signed-off-by: Souradeep Chowdhury <schowdhu@codeaurora.org>
Link: https://lore.kernel.org/r/957e3ae50c75720ef6227529d5ce3d4b457802e9.1601452132.git.schowdhu@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-19 22:22:25 -06:00
Tero Kristo
0a000aeb8b soc: ti: omap-prm: omap5: add genpd support for remaining PRM instances
Add genpd support for mpu, dsp, coreaon, core, iva, cam, dss, gpu,
l3init, custefuse, wkupaon and emu instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-19 15:09:01 +02:00
Tero Kristo
5a68c87afd soc: ti: omap-prm: dra7: add genpd support for remaining PRM instances
Add genpd support for mpu, dsp, ipu, coreaon, core, iva, cam, dss, gpu,
l3init, l4per, custefuse, wkupaon, emu, eve, rtc and vpe instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-19 15:09:00 +02:00
Joel Stanley
4da595ddc0 soc: aspeed: Enable drivers with ARCH_ASPEED
Default the drivers to on as most configurations will use them.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-11-19 23:01:36 +10:30
Dan Carpenter
0f0c9c7022 soc: aspeed: Fix a reference leak in aspeed_socinfo_init()
This needs to call of_node_put(np) before returning if of_iomap() fails.

Fixes: e0218dca57 ("soc: aspeed: Add soc info driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20201113100850.GA168908@mwanda
Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-11-19 23:01:15 +10:30
Tom Rix
959b981dc7 soc: aspeed: remove unneeded semicolon
A semicolon is not needed after a switch statement.

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20201101150622.2288203-1-trix@redhat.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-11-19 23:01:14 +10:30
Tero Kristo
773f0d89ac soc: ti: omap-prm: omap4: add genpd support for remaining PRM instances
Add genpd support for mpu, tesla, always_on_core, core, ivahd, cam, dss,
gfx, l3init, l4per, cefuse, wkup and emu instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-19 14:26:47 +02:00
Nicolin Chen
b9ce9b0f83 soc/tegra: fuse: Fix index bug in get_process_id
This patch simply fixes a bug of referencing speedos[num] in every
for-loop iteration in get_process_id function.

Fixes: 0dc5a0d836 ("soc/tegra: fuse: Add Tegra210 support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-11-19 11:43:49 +01:00
Maxime Ripard
b4bdc4fbf8 soc: sunxi: Deal with the MBUS DMA offsets in a central place
So far most of the drivers with the MBUS quirks had to duplicate the
code to deal with DT compatibility and enforcing the DMA offsets.

Let's move for a more maintainable solution by putting everything in a
notifier that would take care of setting up the DMA offsets for all the
MBUS devices.

Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2020-11-18 09:01:30 +01:00
Tero Kristo
f32f0cbd52 soc: ti: omap-prm: am4: add genpd support for remaining PRM instances
Add genpd support for mpu, rtc, tamper, cefuse, per and wkup instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-16 13:01:12 +02:00
Tony Lindgren
74033131d2 soc: ti: pm33xx: Enable basic PM runtime support for genpd
To prepare for moving to use genpd, let's enable basic PM
runtime support.

Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-16 12:57:38 +02:00
Tero Kristo
f29ef9807f soc: ti: omap-prm: am3: add genpd support for remaining PRM instances
Add genpd support for per, wkup, mpu, rtc and cefuse instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-16 12:57:35 +02:00
Tony Lindgren
176958dd8e soc: ti: omap-prm: Add pm_clk for genpd
In order to probe l3 and l4 interconnects with simple-pm-bus, we want
genpd to manage the clocks for the interconnects. For interconnect target
modules, we already have ti-sysc manage the clocks so let's skipe managing
clocks for ti-sysc modules.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-16 12:57:32 +02:00
Tony Lindgren
c1995e5afa soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted
If a rstctrl reset bit is already deasserted, we can just bail out early
not wait for rstst to clear. Otherwise we can have deassert fail for
already deasserted resets.

Fixes: c5117a78dd ("soc: ti: omap-prm: poll for reset complete during de-assert")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-13 09:59:01 +02:00
Lee Jones
a6a3a24c12 soc: rockchip: io-domain: Remove incorrect and incomplete comment header
Fixes the following W=1 kernel build warning(s):

 drivers/soc/rockchip/io-domain.c:57: warning: Cannot understand  * @supplies: voltage settings matching the register bits.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Doug Anderson <dianders@chromium.org>
Cc: linux-rockchip@lists.infradead.org
Link: https://lore.kernel.org/r/20201103152838.1290217-6-lee.jones@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2020-11-12 12:15:06 +01:00
Lee Jones
1894b78ee6 soc: qcom: rpmh: Fix possible doc-rot in rpmh_write()'s header
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/rpmh.c:266: warning: Function parameter or member 'dev' not described in 'rpmh_write'
 drivers/soc/qcom/rpmh.c:266: warning: Excess function parameter 'rc' description in 'rpmh_write'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-16-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:23:58 -06:00
Lee Jones
9401f8dcf1 soc: qcom: kryo-l2-accessors: Fix misnaming of 'val'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/kryo-l2-accessors.c:25: warning: Function parameter or member 'val' not described in 'kryo_l2_set_indirect_reg'
 drivers/soc/qcom/kryo-l2-accessors.c:25: warning: Excess function parameter 'value' description in 'kryo_l2_set_indirect_reg'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-23-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:23:02 -06:00
Lee Jones
5d16af6a92 soc: qcom: rpmhpd: Provide some missing struct member descriptions
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'parent' not described in 'rpmhpd'
 drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'corner' not described in 'rpmhpd'
 drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'active_corner' not described in 'rpmhpd'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-22-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:22:35 -06:00
Lee Jones
171c03171a soc: qcom: llcc-qcom: Fix expected kernel-doc formatting
Kernel-doc expects struct documentation to start with 'struct <name>'.

Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/llcc-qcom.c:77: warning: cannot understand function prototype: 'struct llcc_slice_config '

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-21-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:21:52 -06:00
Lee Jones
1f8933c25f soc: qcom: smp2p: Remove unused struct attribute provide another
Fixes the following W=1 kernel build warning:

 drivers/soc/qcom/smp2p.c:149: warning: Function parameter or member 'out' not described in 'qcom_smp2p'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-20-lee.jones@linaro.org
[bjorn: Dropped hunk that fixed the same warning in smp2p_smem_item]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:20:44 -06:00
Lee Jones
f5c805b1f1 soc: qcom: wcnss_ctrl: Demote non-conformant struct header and fix function headers
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/wcnss_ctrl.c:81: warning: Function parameter or member 'major' not described in 'wcnss_version_resp'
 drivers/soc/qcom/wcnss_ctrl.c:81: warning: Function parameter or member 'minor' not described in 'wcnss_version_resp'
 drivers/soc/qcom/wcnss_ctrl.c:81: warning: Function parameter or member 'version' not described in 'wcnss_version_resp'
 drivers/soc/qcom/wcnss_ctrl.c:81: warning: Function parameter or member 'revision' not described in 'wcnss_version_resp'
 drivers/soc/qcom/wcnss_ctrl.c:122: warning: Function parameter or member 'rpdev' not described in 'wcnss_ctrl_smd_callback'
 drivers/soc/qcom/wcnss_ctrl.c:122: warning: Function parameter or member 'priv' not described in 'wcnss_ctrl_smd_callback'
 drivers/soc/qcom/wcnss_ctrl.c:122: warning: Function parameter or member 'addr' not described in 'wcnss_ctrl_smd_callback'
 drivers/soc/qcom/wcnss_ctrl.c:122: warning: Excess function parameter 'channel' description in 'wcnss_ctrl_smd_callback'
 drivers/soc/qcom/wcnss_ctrl.c:272: warning: Function parameter or member 'priv' not described in 'qcom_wcnss_open_channel'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-19-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:14:59 -06:00
Lee Jones
fac312df31 soc: qcom: smsm: Fix some kernel-doc formatting and naming problems
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/smsm.c:140: warning: Function parameter or member 'mask' not described in 'smsm_update_bits'
 drivers/soc/qcom/smsm.c:140: warning: Excess function parameter 'offset' description in 'smsm_update_bits'
 drivers/soc/qcom/smsm.c:257: warning: bad line:
 drivers/soc/qcom/smsm.c:260: warning: bad line:

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-18-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:13:30 -06:00
Lee Jones
fc3699c698 soc: qcom: smem: Fix formatting and missing documentation issues
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/smem.c:135: warning: Function parameter or member 'toc' not described in 'smem_header'
 drivers/soc/qcom/smem.c:275: warning: Function parameter or member 'socinfo' not described in 'qcom_smem'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-17-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:12:49 -06:00
Lee Jones
08ad7061e4 soc: qcom: qcom-geni-se: Fix misnamed function parameter 'rx_rfr'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/qcom-geni-se.c:85: warning: Cannot understand  * @struct geni_wrapper - Data structure to represent the QUP Wrapper Core
 drivers/soc/qcom/qcom-geni-se.c:246: warning: Function parameter or member 'rx_rfr' not described in 'geni_se_init'
 drivers/soc/qcom/qcom-geni-se.c:246: warning: Excess function parameter 'rx_rfr_wm' description in 'geni_se_init'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-13-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:11:26 -06:00
Lee Jones
96ec310d5d soc: qcom: qcom_aoss: Add missing description for 'cooling_devs'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/qcom_aoss.c:86: warning: Function parameter or member 'cooling_devs' not described in 'qmp'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-4-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:11:26 -06:00
Lee Jones
54f8ebda0d soc: qcom: qcom_aoss: Remove set but unused variable 'tlen'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/qcom_aoss.c: In function ‘qmp_send’:
 drivers/soc/qcom/qcom_aoss.c:228:9: warning: variable ‘tlen’ set but not used [-Wunused-but-set-variable]

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-3-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10 23:11:17 -06:00
Lee Jones
6c37cb9fa6 soc: tegra: fuse: speedo-tegra210: Remove a group of set but unused variables
Fixes the following W=1 kernel build warning(s):

 drivers/soc/tegra/fuse/speedo-tegra210.c: In function ‘tegra210_init_speedo_data’:
 drivers/soc/tegra/fuse/speedo-tegra210.c:105:56: warning: variable ‘soc_iddq’ set but not used [-Wunused-but-set-variable]
 drivers/soc/tegra/fuse/speedo-tegra210.c:105:46: warning: variable ‘gpu_iddq’ set but not used [-Wunused-but-set-variable]
 drivers/soc/tegra/fuse/speedo-tegra210.c:105:36: warning: variable ‘cpu_iddq’ set but not used [-Wunused-but-set-variable]

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[treding@nvidia.com: remove unnecessary reads altogether]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-11-10 20:40:53 +01:00
Lee Jones
ce034072f9 soc: tegra: fuse: speedo-tegra124: Remove some set but unused variables
Fixes the following W=1 kernel build warning(s):

 drivers/soc/tegra/fuse/speedo-tegra124.c: In function ‘tegra124_init_speedo_data’:
 drivers/soc/tegra/fuse/speedo-tegra124.c:105:38: warning: variable ‘soc_iddq_value’ set but not used [-Wunused-but-set-variable]
 drivers/soc/tegra/fuse/speedo-tegra124.c:105:22: warning: variable ‘gpu_iddq_value’ set but not used [-Wunused-but-set-variable]
 drivers/soc/tegra/fuse/speedo-tegra124.c:105:6: warning: variable ‘cpu_iddq_value’ set but not used [-Wunused-but-set-variable]

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[treding@nvidia.com: remove unnecessary reads altogether]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-11-10 20:40:49 +01:00
Pawel Czarnecki
22447a99c9 drivers/soc/litex: add LiteX SoC Controller driver
This commit adds driver for the FPGA-based LiteX SoC
Controller from LiteX SoC builder.

Co-developed-by: Mateusz Holenko <mholenko@antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko@antmicro.com>
Signed-off-by: Pawel Czarnecki <pczarnecki@internships.antmicro.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
2020-11-09 21:07:00 +09:00
Jakub Kicinski
ae0d0bb29b Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-06 17:33:38 -08:00
Dmitry Osipenko
fc4fbf88ec soc/tegra: fuse: Export tegra_read_ram_code()
The tegra_read_ram_code() is used by EMC drivers and we're going to make
these driver modular, hence this function needs to be exported.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20201104164923.21238-3-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-06 19:24:24 +01:00
Lee Jones
b96c0546b5 soc: bcm: brcmstb: pm: pm-arm: Provide prototype for brcmstb_pm_s3_finish()
brcmstb_pm_s3_finish() cannot be made static because it is referenced
from brcmstb_pm_s3(), so let's provide a prototype for it instead.

Fixes the following W=1 kernel build warning(s):

 drivers/soc/bcm/brcmstb/pm/pm-arm.c:395:14: warning: no previous prototype for ‘brcmstb_pm_s3_finish’ [-Wmissing-prototypes]

Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-11-03 19:25:04 -08:00
Sebastian Andrzej Siewior
f84754dbc5 soc/fsl/qbman: Add an argument to signal if NAPI processing is required.
dpaa_eth_napi_schedule() and caam_qi_napi_schedule() schedule NAPI if
invoked from:

 - Hard interrupt context
 - Any context which is not serving soft interrupts

Any context which is not serving soft interrupts includes hard interrupts
so the in_irq() check is redundant. caam_qi_napi_schedule() has a comment
about this:

        /*
         * In case of threaded ISR, for RT kernels in_irq() does not return
         * appropriate value, so use in_serving_softirq to distinguish between
         * softirq and irq contexts.
         */
         if (in_irq() || !in_serving_softirq())

This has nothing to do with RT. Even on a non RT kernel force threaded
interrupts run obviously in thread context and therefore in_irq() returns
false when invoked from the handler.

The extension of the in_irq() check with !in_serving_softirq() was there
when the drivers were added, but in the out of tree FSL BSP the original
condition was in_irq() which got extended due to failures on RT.

The usage of in_xxx() in drivers is phased out and Linus clearly requested
that code which changes behaviour depending on context should either be
separated or the context be conveyed in an argument passed by the caller,
which usually knows the context. Right he is, the above construct is
clearly showing why.

The following callchains have been analyzed to end up in
dpaa_eth_napi_schedule():

qman_p_poll_dqrr()
  __poll_portal_fast()
    fq->cb.dqrr()
       dpaa_eth_napi_schedule()

portal_isr()
  __poll_portal_fast()
    fq->cb.dqrr()
       dpaa_eth_napi_schedule()

Both need to schedule NAPI.
The crypto part has another code path leading up to this:
  kill_fq()
     empty_retired_fq()
       qman_p_poll_dqrr()
         __poll_portal_fast()
            fq->cb.dqrr()
               dpaa_eth_napi_schedule()

kill_fq() is called from task context and ends up scheduling NAPI, but
that's pointless and an unintended side effect of the !in_serving_softirq()
check.

The code path:
  caam_qi_poll() -> qman_p_poll_dqrr()

is invoked from NAPI and I *assume* from crypto's NAPI device and not
from qbman's NAPI device. I *guess* it is okay to skip scheduling NAPI
(because this is what happens now) but could be changed if it is wrong
due to `budget' handling.

Add an argument to __poll_portal_fast() which is true if NAPI needs to be
scheduled. This requires propagating the value to the caller including
`qman_cb_dqrr' typedef which is used by the dpaa and the crypto driver.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Herbert XS <herbert@gondor.apana.org.au>
Cc: Li Yang <leoyang.li@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Tested-by: Camelia Groza <camelia.groza@nxp.com>
2020-11-03 17:41:03 -08:00
Lee Jones
4d05446ab0 soc: samsung: s3c-pm-check: Fix incorrectly named variable 'val'
Fixes the following W=1 kernel build warning(s):

 drivers/soc/samsung/s3c-pm-check.c:162: warning: Function parameter or member 'val' not described in 's3c_pm_runcheck'
 drivers/soc/samsung/s3c-pm-check.c:162: warning: Excess function parameter 'vak' description in 's3c_pm_runcheck'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Ben Dooks <ben@simtec.co.uk>
Link: https://lore.kernel.org/r/20201103152838.1290217-15-lee.jones@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-03 21:37:45 +01:00
Wolfram Sang
74bb4eb686 v5.10-rc1 + 20201013212531.428538-1-dianders@chromium.org
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Merge tag '20201013212531.428538-1-dianders@chromium.org' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into i2c/for-5.11

v5.10-rc1 + 20201013212531.428538-1-dianders@chromium.org
2020-11-03 21:32:11 +01:00
Tom Rix
74b01dc395 soc: samsung: exynos5422-asv: remove unneeded semicolon
A semicolon is not needed after a switch statement.

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20201101152844.2290728-1-trix@redhat.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-02 19:46:46 +01:00
Peter Ujfalusi
e643bd3809 soc: ti: k3-socinfo: Add entry for AM64X SoC family
It's JTAG PARTNO is 0xBB38.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-01 19:38:05 -08:00
Peter Ujfalusi
8c42379e40 soc: ti: k3-ringacc: Use correct device for allocation in RING mode
In RING mode the ringacc does not access the ring memory. In this access
mode the ringacc coherency does not have meaning.

If the ring is configured in RING mode, then the ringacc itself will not
access to the ring memory. Only the requester (user) of the ring is going
to read/write to the memory.
Extend the ring configuration parameters with a device pointer to be used
for DMA API when the ring is configured in RING mode.

Extending the ring configuration struct will allow per ring selection of
device to be used for allocation, thus allowing per ring coherency.

To avoid regression, fall back to use the ringacc dev in case the alloc_dev
is not provided.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-01 19:38:05 -08:00
Peter Ujfalusi
bb49ca00bd soc: ti: k3-ringacc: Use the ti_sci set_cfg callback for ring configuration
Switch to the new set_cfg to configure the ring.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-01 19:38:03 -08:00
Peter Ujfalusi
f5087f68e7 soc: ti: ti_sci_inta_msi: Add support for second range in resource ranges
Allocate MSI entries for both first and second range if they are valid

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-11-01 19:38:00 -08:00
Tero Kristo
3d696f42c7 soc: ti: ti_sci_pm_domains: check for proper args count in xlate
K2G devices still only use single parameter for power-domains property,
so check for this properly in the driver. Without this, every peripheral
fails to probe resulting in boot failure.

Link: https://lore.kernel.org/r/20201029093337.21170-1-t-kristo@ti.com
Fixes: efa5c01cd7 ("soc: ti: ti_sci_pm_domains: switch to use multiple genpds instead of one")
Reported-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-10-29 22:13:38 +01:00
Krzysztof Kozlowski
93618e344a soc: samsung: exynos-pmu: instantiate clkout driver as MFD
The Exynos clock output (clkout) driver uses same register address space
(Power Management Unit address space) as Exynos PMU driver and same set
of compatibles.  It was modeled as clock provider instantiated with
CLK_OF_DECLARE_DRIVER().

This however brings ordering problems and lack of probe deferral,
therefore clkout driver should be converted to a regular module and
instantiated as a child of PMU driver to be able to use existing
compatibles and address space.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20201001165646.32279-2-krzk@kernel.org
2020-10-28 23:02:02 +01:00
Kai Stuhlemmer
786c395dbe ARM: at91: sam9x60 SiP types added to soc description
Adding SAM9X60 SIP variants to the soc description list.

Signed-off-by: Kai Stuhlemmer <kai.stuhlemmer@ebee.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201008125028.21071-1-nicolas.ferre@microchip.com
2020-10-28 21:27:39 +01:00
Lina Iyer
827b5e6ec1 soc: qcom: Kconfig: make RPMH match Command DB setting
RPMH and drivers that use RPMH APIs need Command DB API to find the
dynamic resource information. Let's match the RPMH to match the Command
DB configuration.

This should fix undefined symbol references reported by CI :

   aarch64-linux-ld: drivers/clk/qcom/clk-rpmh.o: in function `clk_rpmh_probe':
>> clk-rpmh.c:(.text+0xac): undefined reference to `cmd_db_read_addr'
>> aarch64-linux-ld: clk-rpmh.c:(.text+0xc0): undefined reference to `cmd_db_read_aux_data'
   aarch64-linux-ld: drivers/soc/qcom/rpmh-rsc.o: in function `rpmh_rsc_probe':
>> rpmh-rsc.c:(.text+0x42c): undefined reference to `cmd_db_ready'
   aarch64-linux-ld: drivers/regulator/qcom-rpmh-regulator.o: in function `rpmh_regulator_probe':
>> qcom-rpmh-regulator.c:(.text+0x3e0): undefined reference to `cmd_db_read_addr'

Cc: Todd Kjos <tkjos@google.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Maulik Shah <mkshah@codeaurora.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Link: https://lore.kernel.org/r/20201008040907.7036-1-ilina@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-27 16:44:58 -05:00
Bjorn Andersson
bb4b1e3f0c v5.10-rc1 + 20201013212531.428538-1-dianders@chromium.org
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Merge tag '20201013212531.428538-1-dianders@chromium.org' into drivers-for-5.11
2020-10-26 16:13:30 -05:00
Lina Iyer
778279f4f5 soc: qcom: cmd-db: allow loading as a module
This patch enables Command DB driver to be loaded as a module. Command
DB is inherent to RPMH interaction and as such would never be unloaded.
Add supress_bind_attrs to make it a permanently loaded module.

Reviewed-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Link: https://lore.kernel.org/r/20201001154144.5226-1-ilina@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 16:02:29 -05:00
Kevin Hilman
d9da1785ec soc: meson: enable building drivers as modules
Enable SoC drivers for 64-bit Amlogic SoCs to be built as modules.

Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2020-10-26 11:33:43 -07:00
Kevin Hilman
5d2fc13ba0 soc: amlogic: socinfo: build for specific arch
The MX driver only supports 32-bit ARM SoCs and the GX driver only
supports 64-bit SoCs.  Only build for the right architecture.

Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2020-10-26 11:33:27 -07:00
Douglas Anderson
80e8eaab5e soc: qcom: geni: Optimize/comment select fifo/dma mode
The functions geni_se_select_fifo_mode() and
geni_se_select_fifo_mode() are a little funny.  They read/write a
bunch of memory mapped registers even if they don't change or aren't
relevant for the current protocol.  Let's make them a little more
sane.  We'll also add a comment explaining why we don't do some of the
operations for UART.

NOTE: there is no evidence at all that this makes any performance
difference and it fixes no bugs.  However, it seems (to me) like it
makes the functions a little easier to understand.  Decreasing the
amount of times we read/write memory mapped registers is also nice,
even if we are using "relaxed" variants.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20201013142448.v2.3.I646736d3969dc47de8daceb379c6ba85993de9f4@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 10:29:19 -05:00
Douglas Anderson
4b6ea87be4 soc: qcom: geni: More properly switch to DMA mode
On geni-i2c transfers using DMA, it was seen that if you program the
command (I2C_READ) before calling geni_se_rx_dma_prep() that it could
cause interrupts to fire.  If we get unlucky, these interrupts can
just keep firing (and not be handled) blocking further progress and
hanging the system.

In commit 02b9aec592 ("i2c: i2c-qcom-geni: Fix DMA transfer race")
we avoided that by making sure we didn't program the command until
after geni_se_rx_dma_prep() was called.  While that avoided the
problems, it also turns out to be invalid.  At least in the TX case we
started seeing sporadic corrupted transfers.  This is easily seen by
adding an msleep() between the DMA prep and the writing of the
command, which makes the problem worse.  That means we need to revert
that commit and find another way to fix the bogus IRQs.

Specifically, after reverting commit 02b9aec592 ("i2c:
i2c-qcom-geni: Fix DMA transfer race"), I put some traces in.  I found
that the when the interrupts were firing like crazy:
- "m_stat" had bits for M_RX_IRQ_EN, M_RX_FIFO_WATERMARK_EN set.
- "dma" was set.

Further debugging showed that I could make the problem happen more
reliably by adding an "msleep(1)" any time after geni_se_setup_m_cmd()
ran up until geni_se_rx_dma_prep() programmed the length.

A rather simple fix is to change geni_se_select_dma_mode() so it's a
true inverse of geni_se_select_fifo_mode() and disables all the FIFO
related interrupts.  Now the problematic interrupts can't fire and we
can program things in the correct order without worrying.

As part of this, let's also change the writel_relaxed() in the prepare
function to a writel() so that our DMA is guaranteed to be prepared
now that we can't rely on geni_se_setup_m_cmd()'s writel().

NOTE: the only current user of GENI_SE_DMA in mainline is i2c.

Fixes: 37692de5d5 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller")
Fixes: 02b9aec592 ("i2c: i2c-qcom-geni: Fix DMA transfer race")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Akash Asthana <akashast@codeaurora.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201013142448.v2.1.Ifdb1b69fa3367b81118e16e9e4e63299980ca798@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 10:29:12 -05:00
Stephan Gerhold
84314cf7d0 soc: qcom: rpmpd: Add MSM8916 power domains
MSM8916 has two RPM power domains: VDDCX and VDDMX.
Add the necessary definitions to manage them with rpmpd.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200916104135.25085-4-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 10:15:37 -05:00
Jun Nie
b5a3bf66d7 soc: qcom: rpmpd: Add MSM8939 power-domains
Add the shared modemcx/cx/mx power-domains found on MSM8939.

Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Link: https://lore.kernel.org/r/20200930100145.9457-3-jun.nie@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 10:13:56 -05:00
Stephan Gerhold
043323da22 soc: qcom: rpmpd: Rename MAX_8996_RPMPD_STATE to MAX_CORNER_RPMPD_STATE
Older SoCs like MSM8916, MSM8939, MSM8974, MSM8996, ...
use "voltage corners" instead of "voltage levels".
It seems like they all use exactly the same set of corner values,
a value from 0-6 where 6 is the maximum corner (super turbo).

In preparation to add the power domains for MSM8916, rename
MAX_8996_RPMPD_STATE to MAX_CORNER_RPMPD_STATE to make it clear
that this is the max_state to be used for all SoCs using corners.  -

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200916104135.25085-2-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 10:13:47 -05:00
Konrad Dybcio
5fd7fb438b soc: qcom: rpmpd: Add SDM660 power-domains
Add the shared cx/mx and sensor sub-system's cx and mx
power-domains found on SDM660.

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20201018122620.9735-1-kholk11@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 10:11:58 -05:00
John Stultz
cb3659268a soc: qcom: rpmh: Allow RPMH driver to be loaded as a module
This patch allow the rpmh driver to be loaded as a permenent
module. Meaning it can be loaded from a module, but then cannot
be unloaded.

Ideally, it would include a remove hook and related logic, but
the rpmh driver is fairly core to the system, so once its loaded
with almost anything else to get the system to go, the dependencies
are not likely to ever also be removed.

So making it a permanent module at least improves things slightly
over requiring it to be a built in driver.

Cc: Todd Kjos <tkjos@google.com>
Cc: Saravana Kannan <saravanak@google.com>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[mkshah: Fix typos in commit message, send after removing _rcuidle trace]
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1601877596-32676-3-git-send-email-mkshah@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 09:55:06 -05:00
Maulik Shah
7bb7a83f4d Revert "drivers: qcom: rpmh-rsc: Use rcuidle tracepoints for rpmh"
Commit efde2659b0 ("drivers: qcom: rpmh-rsc: Use rcuidle tracepoints
for rpmh") was written to fix a bug seen in an unmerged series that
implemented a struct generic_pm_domain::power_off() callback calling
rpmh_flush(). See stack trace below.

     Call trace:
      dump_backtrace+0x0/0x174
      show_stack+0x20/0x2c
      dump_stack+0xc8/0x124
      lockdep_rcu_suspicious+0xe4/0x104
      __tcs_buffer_write+0x230/0x2d0
      rpmh_rsc_write_ctrl_data+0x210/0x270
      rpmh_flush+0x84/0x24c
      rpmh_domain_power_off+0x78/0x98
      _genpd_power_off+0x40/0xc0
      genpd_power_off+0x168/0x208

Later the final merged solution is to use CPU PM notification to invoke
rpmh_flush() and power_off() callback of genpd is not implemented in the
driver.

CPU PM notifiers are run with RCU enabled/watching (see cpu_pm_notify()
and how it calls rcu_irq_enter_irqson() before calling the notifiers).

Remove this change since RCU will not be idle during CPU PM notifications
hence not required to use _rcuidle tracepoint. Using _rcuidle tracepoint
prevented rpmh driver to be loadable module as these are not exported
symbols.

This reverts commit efde2659b0.

Cc: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1601877596-32676-2-git-send-email-mkshah@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 09:55:01 -05:00
Isaac J. Manjarres
c14e64b469 soc: qcom: llcc: Support chipsets that can write to llcc
Older chipsets may not be allowed to configure certain LLCC registers
as that is handled by the secure side software. However, this is not
the case for newer chipsets and they must configure these registers
according to the contents of the SCT table, while keeping in mind that
older targets may not have these capabilities. So add support to allow
such configuration of registers to enable capacity based allocation
and power collapse retention for capable chipsets.

Reason for choosing capacity based allocation rather than the default
way based allocation is because capacity based allocation allows more
finer grain partition and provides more flexibility in configuration.
As for the retention through power collapse, it has an advantage where
the cache hits are more when we wake up from power collapse although
it does burn more power but the exact power numbers are not known at
the moment.

Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
[saiprakash.ranjan@codeaurora.org: use existing config and reword commit msg]
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/dac7e11cf654fc6d75a6b5ca062ab87b01547810.1600151951.git.saiprakash.ranjan@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 09:53:53 -05:00
Sai Prakash Ranjan
af7244c076 soc: qcom: llcc: Move llcc configuration to its own function
Cleanup qcom_llcc_cfg_program() by moving llcc configuration
to a separate function of its own. Also correct misspelled
'instance' caught by checkpatch.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/51f9ad67333eedf326212dd1b040aade6978e5b1.1600151951.git.saiprakash.ranjan@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 09:53:48 -05:00
Evan Green
fc3e62e25c soc: qcom: smp2p: Safely acquire spinlock without IRQs
smp2p_update_bits() should disable interrupts when it acquires its
spinlock. This is important because without the _irqsave, a priority
inversion can occur.

This function is called both with interrupts enabled in
qcom_q6v5_request_stop(), and with interrupts disabled in
ipa_smp2p_panic_notifier(). IRQ handling of spinlocks should be
consistent to avoid the panic notifier deadlocking because it's
sitting on the thread that's already got the lock via _request_stop().

Found via lockdep.

Cc: stable@vger.kernel.org
Fixes: 50e9964141 ("soc: qcom: smp2p: Qualcomm Shared Memory Point to Point")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Evan Green <evgreen@chromium.org>
Link: https://lore.kernel.org/r/20200929133040.RESEND.1.Ideabf6dcdfc577cf39ce3d95b0e4aa1ac8b38f0c@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-26 09:52:11 -05:00
Nicolas Boichat
4007844b05 soc: mediatek: Check if power domains can be powered on at boot time
In the error case, where a power domain cannot be powered on
successfully at boot time (in mtk_register_power_domains),
pm_genpd_init would still be called with is_off=false, and the
system would later try to disable the power domain again, triggering
warnings as disabled clocks are disabled again (and other potential
issues).

Also print a warning splat in that case, as this should never
happen.

Fixes: c84e358718 ("soc: Mediatek: Add SCPSYS power domain driver")
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Link: https://lore.kernel.org/r/20200928113107.v2.1.I5e6f8c262031d0451fe7241b744f4f3111c1ce71@changeid
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-10-26 10:45:04 +01:00
Dan Carpenter
cf25d802e0 soc: renesas: rmobile-sysc: Fix some leaks in rmobile_init_pm_domains()
This code needs to call iounmap() on one error path.

Fixes: 2173fc7cb6 ("ARM: shmobile: R-Mobile: Add DT support for PM domains")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200923113142.GC1473821@mwanda
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-10-26 10:00:14 +01:00
Linus Torvalds
e533cda12d ARM: Devicetree updates
As usual, most of the changes are to devicetrees. Besides smaller fixes,
 some refactorings and cleanups, some of the new platforms and chips
 (or significant features) supported are below:
 
 Broadcom boards:
  - Cisco Meraki MR32 (BCM53016-based)
  - BCM2711 (RPi4) display pipeline support
 
 Actions Semi boards:
  - Caninos Loucos Labrador SBC (S500-based)
  - RoseapplePi SBC (S500-based)
 
 Allwinner SoCs/boards:
  - A100 SoC with Perf1 board
  - Mali, DMA, Cetrus and IR support for R40 SoC
 
 Amlogic boards:
  - Libretch S905x CC V2 board
  - Hardkernel ODROID-N2+ board
 
 Aspeed boards/platforms:
  - Wistron Mowgli (AST2500-based, Power9 OpenPower server)
  - Facebook Wedge400 (AST2500-based, ToR switch)
 
 Hisilicon SoC:
  - SD5203 SoC
 
 Nvidia boards:
  - Tegra234 VDK, for pre-silicon Orin SoC
 
 NXP i.MX boards:
  - Librem 5 phone
  - i.MX8MM DDR4 EVK
  - Variscite VAR-SOM-MX8MN SoM
  - Symphony board
  - Tolino Shine 2 HD
  - TQMa6 SoM
  - Y Soft IOTA Orion
 
 Rockchip boards:
  - NanoPi R2S board
  - A95X-Z2 board
  - more Rock-Pi4 variants
 
 STM32 boards:
  - Odyssey SOM board (STM32MP157CAC-based)
  - DH DRC02 board
 
 Toshiba SoCs/boards:
  - Visconti SoC and TPMV7708 board
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM Devicetree updates from Olof Johansson:
 "As usual, most of the changes are to devicetrees.

  Besides smaller fixes, some refactorings and cleanups, some of the new
  platforms and chips (or significant features) supported are below:

  Broadcom boards:
   - Cisco Meraki MR32 (BCM53016-based)
   - BCM2711 (RPi4) display pipeline support

  Actions Semi boards:
   - Caninos Loucos Labrador SBC (S500-based)
   - RoseapplePi SBC (S500-based)

  Allwinner SoCs/boards:
   - A100 SoC with Perf1 board
   - Mali, DMA, Cetrus and IR support for R40 SoC

  Amlogic boards:
   - Libretch S905x CC V2 board
   - Hardkernel ODROID-N2+ board

  Aspeed boards/platforms:
   - Wistron Mowgli (AST2500-based, Power9 OpenPower server)
   - Facebook Wedge400 (AST2500-based, ToR switch)

  Hisilicon SoC:
   - SD5203 SoC

  Nvidia boards:
   - Tegra234 VDK, for pre-silicon Orin SoC

  NXP i.MX boards:
   - Librem 5 phone
   - i.MX8MM DDR4 EVK
   - Variscite VAR-SOM-MX8MN SoM
   - Symphony board
   - Tolino Shine 2 HD
   - TQMa6 SoM
   - Y Soft IOTA Orion

  Rockchip boards:
   - NanoPi R2S board
   - A95X-Z2 board
   - more Rock-Pi4 variants

  STM32 boards:
   - Odyssey SOM board (STM32MP157CAC-based)
   - DH DRC02 board

  Toshiba SoCs/boards:
   - Visconti SoC and TPMV7708 board"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (638 commits)
  ARM: dts: nspire: Fix SP804 users
  arm64: dts: lg: Fix SP804 users
  arm64: dts: lg: Fix SP805 clocks
  ARM: mstar: Fix up the fallout from moving the dts/dtsi files
  ARM: mstar: Add mstar prefix to all of the dtsi/dts files
  ARM: mstar: Add interrupt to pm_uart
  ARM: mstar: Add interrupt controller to base dtsi
  ARM: dts: meson8: remove two invalid interrupt lines from the GPU node
  arm64: dts: ti: k3-j7200-common-proc-board: Add USB support
  arm64: dts: ti: k3-j7200-common-proc-board: Configure the SERDES lane function
  arm64: dts: ti: k3-j7200-main: Add USB controller
  arm64: dts: ti: k3-j7200-main.dtsi: Add USB to SERDES lane MUX
  arm64: dts: ti: k3-j7200-main: Add SERDES lane control mux
  dt-bindings: ti-serdes-mux: Add defines for J7200 SoC
  ARM: dts: hisilicon: add SD5203 dts
  ARM: dts: hisilicon: fix the system controller compatible nodes
  arm64: dts: zynqmp: Fix leds subnode name for zcu100/ultra96 v1
  arm64: dts: zynqmp: Remove undocumented u-boot properties
  arm64: dts: zynqmp: Remove additional compatible string for i2c IPs
  arm64: dts: zynqmp: Rename buses to be align with simple-bus yaml
  ...
2020-10-24 10:44:18 -07:00
Linus Torvalds
2e368dd2bb ARM: SoC-related driver updates
Various driver updates for platforms. A bulk of this is smaller fixes or
 cleanups, but some of the new material this time around is:
 
  - Support for Nvidia Tegra234 SoC
  - Ring accelerator support for TI AM65x
  - PRUSS driver for TI platforms
  - Renesas support for R-Car V3U SoC
  - Reset support for Cortex-M4 processor on i.MX8MQ
 
 There are also new socinfo entries for a handful of different SoCs
 and platforms.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms. A bulk of this is smaller fixes
  or cleanups, but some of the new material this time around is:

   - Support for Nvidia Tegra234 SoC

   - Ring accelerator support for TI AM65x

   - PRUSS driver for TI platforms

   - Renesas support for R-Car V3U SoC

   - Reset support for Cortex-M4 processor on i.MX8MQ

  There are also new socinfo entries for a handful of different SoCs and
  platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (131 commits)
  drm/mediatek: reduce clear event
  soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api
  soc: mediatek: cmdq: add jump function
  soc: mediatek: cmdq: add write_s_mask value function
  soc: mediatek: cmdq: add write_s value function
  soc: mediatek: cmdq: add read_s function
  soc: mediatek: cmdq: add write_s_mask function
  soc: mediatek: cmdq: add write_s function
  soc: mediatek: cmdq: add address shift in jump
  soc: mediatek: mtk-infracfg: Fix kerneldoc
  soc: amlogic: pm-domains: use always-on flag
  reset: sti: reset-syscfg: fix struct description warnings
  reset: imx7: add the cm4 reset for i.MX8MQ
  dt-bindings: reset: imx8mq: add m4 reset
  reset: Fix and extend kerneldoc
  reset: reset-zynqmp: Added support for Versal platform
  dt-bindings: reset: Updated binding for Versal reset driver
  reset: imx7: Support module build
  soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk
  soc: fsl: qman: convert to use be32_add_cpu()
  ...
2020-10-24 10:39:22 -07:00
Linus Torvalds
e731f3146f ARM: SoC platform updates
SoC changes, a substantial part of this is cleanup of some of the older
 platforms that used to have a bunch of board files. In particular:
 
  - Removal of non-DT i.MX platforms that haven't seen activity in years,
    it's time to remove them.
  - A bunch of cleanup and removal of platform data for TI/OMAP platforms,
    moving over to genpd for power/reset control (yay!)
  - Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
    closer to multiplatform support (not quite there yet, but getting
    close).
 
 THere are a few other changes too, smaller fixlets, etc. For new
 platform support, the primary ones re:
 
  - New SoC: Hisilicon SD5203, ARM926EJ-S platform.
  - Cpufreq support for i.MX7ULP
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform updates from Olof Johansson:
 "SoC changes, a substantial part of this is cleanup of some of the
  older platforms that used to have a bunch of board files.

  In particular:

   - Remove non-DT i.MX platforms that haven't seen activity in years,
     it's time to remove them.

   - A bunch of cleanup and removal of platform data for TI/OMAP
     platforms, moving over to genpd for power/reset control (yay!)

   - Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
     closer to multiplatform support (not quite there yet, but getting
     close).

  There are a few other changes too, smaller fixlets, etc. For new
  platform support, the primary ones are:

   - New SoC: Hisilicon SD5203, ARM926EJ-S platform.

   - Cpufreq support for i.MX7ULP"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits)
  ARM: mstar: Select MStar intc
  ARM: stm32: Replace HTTP links with HTTPS ones
  ARM: debug: add UART early console support for SD5203
  ARM: hisi: add support for SD5203 SoC
  ARM: omap3: enable off mode automatically
  clk: imx: imx35: Remove mx35_clocks_init()
  clk: imx: imx31: Remove mx31_clocks_init()
  clk: imx: imx27: Remove mx27_clocks_init()
  ARM: imx: Remove unused definitions
  ARM: imx35: Retrieve the IIM base address from devicetree
  ARM: imx3: Retrieve the AVIC base address from devicetree
  ARM: imx3: Retrieve the CCM base address from devicetree
  ARM: imx31: Retrieve the IIM base address from devicetree
  ARM: imx27: Retrieve the CCM base address from devicetree
  ARM: imx27: Retrieve the SYSCTRL base address from devicetree
  ARM: s3c64xx: bring back notes from removed debug-macro.S
  ARM: s3c24xx: fix Wunused-variable warning on !MMU
  ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
  MAINTAINERS: mark linux-samsung-soc list non-moderated
  ARM: imx: Remove remnant board file support pieces
  ...
2020-10-24 10:33:08 -07:00
Linus Torvalds
1f70935f63 ARM: SoC fixes
I had queued up a batch of fixes that got a bit close to the release for
 sending in before the merge window opened, so I'm including them in the
 batch of pull requests instead. They're mostly smaller DT tweaks and
 fixes, the usual mix that we tend to have through the releases.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "I had queued up a batch of fixes that got a bit close to the release
  for sending in before the merge window opened, so I'm including them
  in the merge window batch instead.

  Mostly smaller DT tweaks and fixes, the usual mix that we tend to have
  through the releases"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: dts: iwg20d-q7-common: Fix touch controller probe failure
  ARM: OMAP2+: Restore MPU power domain if cpu_cluster_pm_enter() fails
  ARM: dts: am33xx: modify AM33XX_IOPAD for #pinctrl-cells = 2
  soc: actions: include header to fix missing prototype
  arm64: dts: ti: k3-j721e: Rename mux header and update macro names
  soc: qcom: pdr: Fixup array type of get_domain_list_resp message
  arm64: dts: qcom: pm660: Fix missing pound sign in interrupt-cells
  arm64: dts: qcom: kitakami: Temporarily disable SDHCI1
  arm64: dts: sdm630: Temporarily disable SMMUs by default
  arm64: dts: sdm845: Fixup OPP table for all qup devices
  arm64: dts: allwinner: h5: remove Mali GPU PMU module
  ARM: dts: sun8i: r40: bananapi-m2-ultra: Fix dcdc1 regulator
  soc: xilinx: Fix error code in zynqmp_pm_probe()
2020-10-24 10:26:06 -07:00
Ulf Hansson
a7305e684f PM: AVS: qcom-cpr: Move the driver to the qcom specific drivers
The avs drivers are all SoC specific drivers that doesn't share any code.
Instead they are located in a directory, mostly to keep similar
functionality together. From a maintenance point of view, it makes better
sense to collect SoC specific drivers like these, into the SoC specific
directories.

Therefore, let's move the qcom-cpr driver to the qcom directory.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Niklas Cassel <nks@flawful.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-22 18:38:21 +02:00
Ulf Hansson
bca815d620 PM: AVS: smartreflex Move driver to soc specific drivers
The avs drivers are all SoC specific drivers that doesn't share any code.
Instead they are located in a directory, mostly to keep similar
functionality together. From a maintenance point of view, it makes better
sense to collect SoC specific drivers like these, into the SoC specific
directories.

Therefore, let's move the smartreflex driver for OMAP to the ti directory.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-16 18:28:43 +02:00
Ulf Hansson
e943c43b32 PM: AVS: rockchip-io: Move the driver to the rockchip specific drivers
The avs drivers are all SoC specific drivers that doesn't share any code.
Instead they are located in a directory, mostly to keep similar
functionality together. From a maintenance point of view, it makes better
sense to collect SoC specific drivers like these, into the SoC specific
directories.

Therefore, let's move the rockchip-io driver to the rockchip directory.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-16 18:23:15 +02:00
Linus Torvalds
0b8417c141 Power management updates for 5.10-rc1
- Rework cpufreq statistics collection to allow it to take place
    when fast frequency switching is enabled in the governor (Viresh
    Kumar).
 
  - Make the cpufreq core set the frequency scale on behalf of the
    driver and update several cpufreq drivers accordingly (Ionela
    Voinescu, Valentin Schneider).
 
  - Add new hardware support to the STI and qcom cpufreq drivers and
    improve them (Alain Volmat, Manivannan Sadhasivam).
 
  - Fix multiple assorted issues in cpufreq drivers (Jon Hunter,
    Krzysztof Kozlowski, Matthias Kaehlcke, Pali Rohár, Stephan
    Gerhold, Viresh Kumar).
 
  - Fix several assorted issues in the operating performance points
    (OPP) framework (Stephan Gerhold, Viresh Kumar).
 
  - Allow devfreq drivers to fetch devfreq instances by DT enumeration
    instead of using explicit phandles and modify the devfreq core
    code to support driver-specific devfreq DT bindings (Leonard
    Crestez, Chanwoo Choi).
 
  - Improve initial hardware resetting in the tegra30 devfreq driver
    and clean up the tegra cpuidle driver (Dmitry Osipenko).
 
  - Update the cpuidle core to collect state entry rejection
    statistics and expose them via sysfs (Lina Iyer).
 
  - Improve the ACPI _CST code handling diagnostics (Chen Yu).
 
  - Update the PSCI cpuidle driver to allow the PM domain
    initialization to occur in the OSI mode as well as in the PC
    mode (Ulf Hansson).
 
  - Rework the generic power domains (genpd) core code to allow
    domain power off transition to be aborted in the absence of the
    "power off" domain callback (Ulf Hansson).
 
  - Fix two suspend-to-idle issues in the ACPI EC driver (Rafael
    Wysocki).
 
  - Fix the handling of timer_expires in the PM-runtime framework on
    32-bit systems and the handling of device links in it (Grygorii
    Strashko, Xiang Chen).
 
  - Add IO requests batching support to the hibernate image saving and
    reading code and drop a bogus get_gendisk() from there (Xiaoyi
    Chen, Christoph Hellwig).
 
  - Allow PCIe ports to be put into the D3cold power state if they
    are power-manageable via ACPI (Lukas Wunner).
 
  - Add missing header file include to a power capping driver (Pujin
    Shi).
 
  - Clean up the qcom-cpr AVS driver a bit (Liu Shixin).
 
  - Kevin Hilman steps down as designated reviwer of adaptive voltage
    scaling (AVS) driverrs (Kevin Hilman).
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Merge tag 'pm-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These rework the collection of cpufreq statistics to allow it to take
  place if fast frequency switching is enabled in the governor, rework
  the frequency invariance handling in the cpufreq core and drivers, add
  new hardware support to a couple of cpufreq drivers, fix a number of
  assorted issues and clean up the code all over.

  Specifics:

   - Rework cpufreq statistics collection to allow it to take place when
     fast frequency switching is enabled in the governor (Viresh Kumar).

   - Make the cpufreq core set the frequency scale on behalf of the
     driver and update several cpufreq drivers accordingly (Ionela
     Voinescu, Valentin Schneider).

   - Add new hardware support to the STI and qcom cpufreq drivers and
     improve them (Alain Volmat, Manivannan Sadhasivam).

   - Fix multiple assorted issues in cpufreq drivers (Jon Hunter,
     Krzysztof Kozlowski, Matthias Kaehlcke, Pali Rohár, Stephan
     Gerhold, Viresh Kumar).

   - Fix several assorted issues in the operating performance points
     (OPP) framework (Stephan Gerhold, Viresh Kumar).

   - Allow devfreq drivers to fetch devfreq instances by DT enumeration
     instead of using explicit phandles and modify the devfreq core code
     to support driver-specific devfreq DT bindings (Leonard Crestez,
     Chanwoo Choi).

   - Improve initial hardware resetting in the tegra30 devfreq driver
     and clean up the tegra cpuidle driver (Dmitry Osipenko).

   - Update the cpuidle core to collect state entry rejection statistics
     and expose them via sysfs (Lina Iyer).

   - Improve the ACPI _CST code handling diagnostics (Chen Yu).

   - Update the PSCI cpuidle driver to allow the PM domain
     initialization to occur in the OSI mode as well as in the PC mode
     (Ulf Hansson).

   - Rework the generic power domains (genpd) core code to allow domain
     power off transition to be aborted in the absence of the "power
     off" domain callback (Ulf Hansson).

   - Fix two suspend-to-idle issues in the ACPI EC driver (Rafael
     Wysocki).

   - Fix the handling of timer_expires in the PM-runtime framework on
     32-bit systems and the handling of device links in it (Grygorii
     Strashko, Xiang Chen).

   - Add IO requests batching support to the hibernate image saving and
     reading code and drop a bogus get_gendisk() from there (Xiaoyi
     Chen, Christoph Hellwig).

   - Allow PCIe ports to be put into the D3cold power state if they are
     power-manageable via ACPI (Lukas Wunner).

   - Add missing header file include to a power capping driver (Pujin
     Shi).

   - Clean up the qcom-cpr AVS driver a bit (Liu Shixin).

   - Kevin Hilman steps down as designated reviwer of adaptive voltage
     scaling (AVS) drivers (Kevin Hilman)"

* tag 'pm-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
  cpufreq: stats: Fix string format specifier mismatch
  arm: disable frequency invariance for CONFIG_BL_SWITCHER
  cpufreq,arm,arm64: restructure definitions of arch_set_freq_scale()
  cpufreq: stats: Add memory barrier to store_reset()
  cpufreq: schedutil: Simplify sugov_fast_switch()
  ACPI: EC: PM: Drop ec_no_wakeup check from acpi_ec_dispatch_gpe()
  ACPI: EC: PM: Flush EC work unconditionally after wakeup
  PCI/ACPI: Whitelist hotplug ports for D3 if power managed by ACPI
  PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
  cpufreq: Move traces and update to policy->cur to cpufreq core
  cpufreq: stats: Enable stats for fast-switch as well
  cpufreq: stats: Mark few conditionals with unlikely()
  cpufreq: stats: Remove locking
  cpufreq: stats: Defer stats update to cpufreq_stats_record_transition()
  PM: domains: Allow to abort power off when no ->power_off() callback
  PM: domains: Rename power state enums for genpd
  PM / devfreq: tegra30: Improve initial hardware resetting
  PM / devfreq: event: Change prototype of devfreq_event_get_edev_by_phandle function
  PM / devfreq: Change prototype of devfreq_get_devfreq_by_phandle function
  PM / devfreq: Add devfreq_get_devfreq_by_node function
  ...
2020-10-14 10:45:41 -07:00
Marc Zyngier
c351ab7bf2 soc/tegra: pmc: Don't create fake interrupt hierarchy levels
The Tegra PMC driver does ungodly things with the interrupt hierarchy,
repeatedly corrupting it by pulling hwirq numbers out of thin air,
overriding existing IRQ mappings and changing the handling flow
of unsuspecting users.

All of this is done in the name of preserving the interrupt hierarchy
even when these levels do not exist in the HW. Together with the use
of proper IRQs for IPIs, this leads to an unbootable system as the
rescheduling IPI gets repeatedly repurposed for random drivers...

Instead, let's simply mark the level from which the hierarchy does
not make sense for the HW, and let the core code trim the usused
levels from the hierarchy.

Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-10-10 12:12:11 +01:00
Marc Zyngier
8681cc33f8 soc/tegra: pmc: Allow optional irq parent callbacks
Make the PMC driver resistent to variable depth interrupt hierarchy,
which we are about to introduce.

Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-10-10 12:12:11 +01:00
Rafael J. Wysocki
757e282188 Merge branch 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull opertaing performance points (OPP) framework fixes for 5.10-rc1
from Viresh Kumar:

"- Return -EPROBE_DEFER properly from dev_pm_opp_get_opp_table()
   (Stephan Gerhold).

 - Minor cleanups around required-opps (Stephan Gerhold).

 - Extends opp-supported-hw property to contain multiple versions
   (Viresh Kumar).

 - Multiple cleanups around dev_pm_opp_attach_genpd() (Viresh Kumar).

 - Multiple fixes, cleanups in the OPP core for overall better design
   (Viresh Kumar)."

* 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  opp: Allow opp-level to be set to 0
  opp: Prevent memory leak in dev_pm_opp_attach_genpd()
  ARM: tegra: Pass multiple versions in opp-supported-hw property
  opp: Allow opp-supported-hw to contain multiple versions
  dt-bindings: opp: Allow opp-supported-hw to contain multiple versions
  opp: Set required OPPs in reverse order when scaling down
  opp: Reduce code duplication in _set_required_opps()
  opp: Drop unnecessary check from dev_pm_opp_attach_genpd()
  opp: Handle multiple calls for same OPP table in _of_add_opp_table_v1()
  opp: Allow dev_pm_opp_get_opp_table() to return -EPROBE_DEFER
  opp: Remove _dev_pm_opp_find_and_remove_table() wrapper
  opp: Split out _opp_set_rate_zero()
  opp: Reuse the enabled flag in !target_freq path
  opp: Rename regulator_enabled and use it as status of all resources
2020-10-05 13:31:32 +02:00
Olof Johansson
9f7f269300 cmdq helper:
- add new functionality for writing and reading values to and from addresses
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Merge tag 'v5.9-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/drivers

cmdq helper:
- add new functionality for writing and reading values to and from addresses

* tag 'v5.9-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  drm/mediatek: reduce clear event
  soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api
  soc: mediatek: cmdq: add jump function
  soc: mediatek: cmdq: add write_s_mask value function
  soc: mediatek: cmdq: add write_s value function
  soc: mediatek: cmdq: add read_s function
  soc: mediatek: cmdq: add write_s_mask function
  soc: mediatek: cmdq: add write_s function
  soc: mediatek: cmdq: add address shift in jump
  soc: mediatek: mtk-infracfg: Fix kerneldoc

Link: https://lore.kernel.org/r/ac672cc9-059c-b768-3a67-1f674d4a2b7a@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-10-03 13:07:43 -07:00
Olof Johansson
e863e45ef9 soc: amlogic: driver updates for v5.10
- misc. pm-domain updates
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Merge tag 'amlogic-drivers' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/drivers

soc: amlogic: driver updates for v5.10
- misc. pm-domain updates

* tag 'amlogic-drivers' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  soc: amlogic: pm-domains: use always-on flag
  soc: amlogic: meson-ee-pwrc: add support for the Meson AXG SoCs
  dt-bindings: power: amlogic, meson-ee-pwrc: add Amlogic AXG power controller bindings

Link: https://lore.kernel.org/r/7hblhukjzx.fsf@baylibre.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-10-03 13:00:56 -07:00
Olof Johansson
f8e87554b1 Qualcomm driver updates for v5.10
Replace the busy wait for free tcs slots in the RPMh driver with a
 sleeping wait and use memory barriers when writing the command registers.
 
 Add a bunch of SoC ids to the socinfo driver, fix an erro printin the
 apr driver and migrate llcc to devm_platform_ioremap_resource_byname().
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Merge tag 'qcom-drivers-for-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers

Qualcomm driver updates for v5.10

Replace the busy wait for free tcs slots in the RPMh driver with a
sleeping wait and use memory barriers when writing the command registers.

Add a bunch of SoC ids to the socinfo driver, fix an erro printin the
apr driver and migrate llcc to devm_platform_ioremap_resource_byname().

* tag 'qcom-drivers-for-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  soc: qcom: llcc: use devm_platform_ioremap_resource_byname()
  soc: qcom: apr: Fixup the error displayed on lookup failure
  soc: qcom: socinfo: Add msm8992/4 and apq8094 SoC IDs
  soc: qcom: rpmh-rsc: Sleep waiting for tcs slots to be free
  soc: qcom-geni-se: Don't use relaxed writes when writing commands
  soc: qcom: socinfo: add SC7180 entry to soc_id array
  soc: qcom: socinfo: add soc id for IPQ6018

Link: https://lore.kernel.org/r/20200924040504.179708-1-bjorn.andersson@linaro.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-10-03 12:59:49 -07:00
Olof Johansson
c78c6e18ab NXP/FSL SoC driver updates for v5.10
Fix various compile warnings and static analysis warnings for:
 - QBMan driver
 - DPIO driver
 - QE driver
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Merge tag 'soc-fsl-next-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.10

Fix various compile warnings and static analysis warnings for:
- QBMan driver
- DPIO driver
- QE driver

* tag 'soc-fsl-next-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk
  soc: fsl: qman: convert to use be32_add_cpu()
  soc: fsl: dpio: remove set but not used 'addr_cena'
  soc: fsl: qbman: Fix return value on success
  soc: fsl: qman: fix -Wpacked-not-aligned warnings

Link: https://lore.kernel.org/r/20200923224416.25788-1-leoyang.li@nxp.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-10-03 12:59:14 -07:00
Olof Johansson
a39c258cc4 i.MX drivers update for 5.10:
- Use dev_err_probe() to simplify error handling for i.MX GPCv2 driver.
 - Add a check in i.MX SCU power domain driver to ignore the power
   domains that are not owned by the current partition.
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Merge tag 'imx-drivers-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX drivers update for 5.10:

- Use dev_err_probe() to simplify error handling for i.MX GPCv2 driver.
- Add a check in i.MX SCU power domain driver to ignore the power
  domains that are not owned by the current partition.

* tag 'imx-drivers-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  firmware: imx: scu-pd: ignore power domain not owned
  soc: imx: gpcv2: Use dev_err_probe() to simplify error handling

Link: https://lore.kernel.org/r/20200923073009.23678-1-shawnguo@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-10-03 12:58:32 -07:00
Olof Johansson
8fc6726d90 One small style fix for the Allwinner SRAM driver
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Merge tag 'sunxi-drivers-for-5.10-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/drivers

One small style fix for the Allwinner SRAM driver

* tag 'sunxi-drivers-for-5.10-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  soc: sunxi: sram: remove unneeded semicolon

Link: https://lore.kernel.org/r/175d36ad-bc98-4d5d-b035-ce467e932248.lettre@localhost
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-10-03 12:58:16 -07:00
Olof Johansson
6b9c8c8bb7 arm64: soc: ZynqMP SoC changes for v5.9-v2
- Fix error code in zynqmp_power driver
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Merge tag 'zynqmp-soc-for-v5.9-v2' of https://github.com/Xilinx/linux-xlnx into arm/fixes

arm64: soc: ZynqMP SoC changes for v5.9-v2

- Fix error code in zynqmp_power driver

* tag 'zynqmp-soc-for-v5.9-v2' of https://github.com/Xilinx/linux-xlnx:
  soc: xilinx: Fix error code in zynqmp_pm_probe()

Link: https://lore.kernel.org/r/9b23dd60-45f4-cd7d-e81a-e8ab8e20af7c@xilinx.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-10-03 12:13:59 -07:00
Olof Johansson
aa78dd167e ARM: soc: TI driver updates for v5.10
Consist of:
  - Add Ring accelerator support for AM65x
  - Add TI PRUSS platform driver and enable it on available platforms
  - Extend PRUSS driver for CORECLK_MUX/IEPCLK_MUX support
  - UDMA rx ring pair fix
  - Add socinfo entry for J7200
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Merge tag 'drivers_soc_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into arm/drivers

ARM: soc: TI driver updates for v5.10

Consist of:
 - Add Ring accelerator support for AM65x
 - Add TI PRUSS platform driver and enable it on available platforms
 - Extend PRUSS driver for CORECLK_MUX/IEPCLK_MUX support
 - UDMA rx ring pair fix
 - Add socinfo entry for J7200

* tag 'drivers_soc_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  Add missing '#' to fix schema errors:
  soc: ti: Convert to DEFINE_SHOW_ATTRIBUTE
  dmaengine: ti: k3-udma-glue: Fix parameters for rx ring pair request
  soc: ti: k3-socinfo: Add entry for J7200
  soc: ti: pruss: support CORECLK_MUX and IEPCLK_MUX
  dt-bindings: soc: ti: Update TI PRUSS bindings regarding clock-muxes
  firmware: ti_sci: allow frequency change for disabled clocks by default
  soc: ti: ti_sci_pm_domains: switch to use multiple genpds instead of one
  soc: ti: pruss: Enable support for ICSSG subsystems on K3 J721E SoCs
  soc: ti: pruss: Enable support for ICSSG subsystems on K3 AM65x SoCs
  soc: ti: pruss: Add support for PRU-ICSS subsystems on 66AK2G SoC
  soc: ti: pruss: Add support for PRU-ICSS subsystems on AM57xx SoCs
  soc: ti: pruss: Add support for PRU-ICSSs on AM437x SoCs
  soc: ti: pruss: Add a platform driver for PRUSS in TI SoCs
  dt-bindings: soc: ti: Add TI PRUSS bindings
  bindings: soc: ti: soc: ringacc: remove ti,dma-ring-reset-quirk
  soc: ti: k3: ringacc: add am65x sr2.0 support

Link: https://lore.kernel.org/r/1600656828-29267-1-git-send-email-santosh.shilimkar@oracle.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 12:56:51 -07:00
Olof Johansson
76940c8d5a Samsung mach/soc changes for v5.10
1. Clear unneeded L2C-310 flag which presenc was triggering warning
    message.
 2. Fix build of SAMSUNG_PM_DEBUG without MMU.
 3. Minor cleanups and update of linux-samsung-soc mailing list in
    Maintainers.
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Merge tag 'samsung-soc-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc

Samsung mach/soc changes for v5.10

1. Clear unneeded L2C-310 flag which presenc was triggering warning
   message.
2. Fix build of SAMSUNG_PM_DEBUG without MMU.
3. Minor cleanups and update of linux-samsung-soc mailing list in
   Maintainers.

* tag 'samsung-soc-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: s3c64xx: bring back notes from removed debug-macro.S
  ARM: s3c24xx: fix Wunused-variable warning on !MMU
  ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
  MAINTAINERS: mark linux-samsung-soc list non-moderated
  ARM: exynos: clear L310_AUX_CTRL_NS_LOCKDOWN in default l2c_aux_val

Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 12:55:43 -07:00
Olof Johansson
e8c9d35ea6 soc/tegra: Changes for v5.10-rc1
These changes contain a bit of cleanup and chip support for the upcoming
 Tegra234 SoC.
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Merge tag 'tegra-for-5.10-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

soc/tegra: Changes for v5.10-rc1

These changes contain a bit of cleanup and chip support for the upcoming
Tegra234 SoC.

* tag 'tegra-for-5.10-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: pmc: Add Tegra234 support
  soc/tegra: pmc: Reorder reset sources/levels definitions
  soc/tegra: misc: Add Tegra234 support
  soc/tegra: fuse: Add Tegra234 support
  soc/tegra: fuse: Implement tegra_is_silicon()
  soc/tegra: fuse: Extract tegra_get_platform()

Link: https://lore.kernel.org/r/20200918150303.3938852-2-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 12:39:36 -07:00
Olof Johansson
802b26b3c2 Renesas driver updates for v5.10 (take two)
- Add core support for the R-Car V3U (R8A779A0) SoC, including System
     Controller (SYSC) and Reset (RST) support,
   - Various Kconfig cleanups.
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Merge tag 'renesas-drivers-for-v5.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/drivers

Renesas driver updates for v5.10 (take two)

  - Add core support for the R-Car V3U (R8A779A0) SoC, including System
    Controller (SYSC) and Reset (RST) support,
  - Various Kconfig cleanups.

* tag 'renesas-drivers-for-v5.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: r8a779a0-sysc: Add r8a779a0 support
  soc: renesas: rcar-rst: Add support for R-Car V3U
  soc: renesas: Identify R-Car V3U
  soc: renesas: Sort driver description title
  soc: renesas: Use ARM32/ARM64 for menu description
  dt-bindings: clock: Add r8a779a0 CPG Core Clock Definitions
  dt-bindings: power: Add r8a779a0 SYSC power domain definitions

Link: https://lore.kernel.org/r/20200918124800.15555-4-geert+renesas@glider.be
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 12:38:34 -07:00
Olof Johansson
f1466cdd82 Actions Semi drivers fixes for v5.9
- Fix the missing prototype warning in owl-sps-helper driver by
   including owl-sps header
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Merge tag 'actions-drivers-fixes-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/linux-actions into arm/fixes

Actions Semi drivers fixes for v5.9

- Fix the missing prototype warning in owl-sps-helper driver by
  including owl-sps header

* tag 'actions-drivers-fixes-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/linux-actions:
  soc: actions: include header to fix missing prototype

Link: https://lore.kernel.org/r/20200922114559.GD11251@Mani-XPS-13-9360
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 10:11:17 -07:00
Olof Johansson
32fe0116aa Qualcomm driver fixes for v5.9
Fix the array type of the domain_list QMI response in PDR.
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Merge tag 'qcom-drivers-fixes-for-5.9' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes

Qualcomm driver fixes for v5.9

Fix the array type of the domain_list QMI response in PDR.

* tag 'qcom-drivers-fixes-for-5.9' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  soc: qcom: pdr: Fixup array type of get_domain_list_resp message

Link: https://lore.kernel.org/r/20200921235241.36463-1-bjorn.andersson@linaro.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 10:10:28 -07:00
Olof Johansson
dd59aed76d arm64: tegra: Changes for v5.10-rc1
This set of changes fixes some minor issues in existing device trees and
 adds ID EEPROMs on the Jetson Xavier NX. All ID EEPROMs are now labelled
 to allow them to be detected by software.
 
 It also adds support for the Tegra234 VDK board, which is a pre-silicon
 platform for the upcoming Orin SoC.
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Merge tag 'tegra-for-5.10-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dt

arm64: tegra: Changes for v5.10-rc1

This set of changes fixes some minor issues in existing device trees and
adds ID EEPROMs on the Jetson Xavier NX. All ID EEPROMs are now labelled
to allow them to be detected by software.

It also adds support for the Tegra234 VDK board, which is a pre-silicon
platform for the upcoming Orin SoC.

* tag 'tegra-for-5.10-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  arm64: tegra: Initial Tegra234 VDK support
  arm64: tegra: Populate EEPROMs for Jetson Xavier NX
  arm64: tegra: Add label properties for EEPROMs
  arm64: tegra: Add DT binding for AHUB components
  arm64: tegra: Enable ACONNECT, ADMA and AGIC on Jetson Nano
  arm64: tegra: Properly size register regions for GPU on Tegra194
  arm64: tegra: Use valid PWM period for VDD_GPU on Tegra210
  arm64: tegra: Describe display controller outputs for Tegra210
  arm64: tegra: Disable SD card write-protection on Jetson Nano
  arm64: tegra: Add VBUS supply for micro USB port on Jetson Nano
  arm64: tegra: Wire up pinctrl states for all DPAUX controllers
  arm64: tegra: Add ID EEPROMs on Jetson AGX Xavier

Link: https://lore.kernel.org/r/20200918150303.3938852-5-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 10:01:52 -07:00
Dennis YC Hsieh
23c22299cd soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api
Add clear parameter to let client decide if
event should be clear to 0 after GCE receive it.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://lore.kernel.org/r/1594136714-11650-9-git-send-email-dennis-yc.hsieh@mediatek.com
[mb: fix commit message]
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:39 +02:00
Dennis YC Hsieh
946f1792d3 soc: mediatek: cmdq: add jump function
Add jump function so that client can jump to any address which
contains instruction.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-8-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:38 +02:00
Dennis YC Hsieh
88a2ffc48d soc: mediatek: cmdq: add write_s_mask value function
add write_s_mask_value function in cmdq helper functions which
writes a constant value to address with mask and large dma
access support.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-7-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:36 +02:00
Dennis YC Hsieh
1af43fce81 soc: mediatek: cmdq: add write_s value function
add write_s function in cmdq helper functions which
writes a constant value to address with large dma
access support.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-6-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:35 +02:00
Dennis YC Hsieh
d3b04aab06 soc: mediatek: cmdq: add read_s function
Add read_s function in cmdq helper functions which support read value from
register or dma physical address into gce internal register.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-5-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:34 +02:00
Dennis YC Hsieh
11c7842d41 soc: mediatek: cmdq: add write_s_mask function
add write_s_mask function in cmdq helper functions which
writes value contains in internal register to address
with mask and large dma access support.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-4-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:32 +02:00
Dennis YC Hsieh
5f6e560c2d soc: mediatek: cmdq: add write_s function
add write_s function in cmdq helper functions which
writes value contains in internal register to address
with large dma access support.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-3-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:31 +02:00
Dennis YC Hsieh
2b8cf38343 soc: mediatek: cmdq: add address shift in jump
Add address shift when compose jump instruction
to compatible with 35bit format.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Reviewed-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-2-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:26 +02:00
Krzysztof Kozlowski
11b490c6ae soc: mediatek: mtk-infracfg: Fix kerneldoc
Fix W=1 compile warnings (invalid kerneldoc):

    drivers/soc/mediatek/mtk-infracfg.c:34: warning: Function parameter or member 'infracfg' not described in 'mtk_infracfg_set_bus_protection'
    drivers/soc/mediatek/mtk-infracfg.c:34: warning: Excess function parameter 'regmap' description in 'mtk_infracfg_set_bus_protection'

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200729074415.28393-1-krzk@kernel.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-09-25 17:27:24 +02:00
Joel Stanley
cd460be046 soc: aspeed-lpc-ctrl: Fix driver name
Clarify the string now that it supports the AST2600 too.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-09-25 14:54:42 +09:30
Joel Stanley
4d1d81dbc9 soc: aspeed-lpc-ctrl: Fix whitespace
Some misaligned indentation I noticed when applying another patch.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-09-25 14:54:42 +09:30
Joel Stanley
5042d3f278 soc: aspeed-lpc-ctrl: LPC to AHB mapping on ast2600
The ast2600 disables the mapping of AHB memory regions by default,
only allowing the LPC window to point to SPI NOR. In order to point the
window to any AHB address, an ast2600 specific bit must be toggled.

Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20200312121413.294384-1-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-09-25 14:54:42 +09:30
Andrew Jeffery
6bf4ddbe2b soc: aspeed-lpc-ctrl: Fail probe of lpc-ctrl if reserved memory is not aligned
Alignment is a hardware constraint of the LPC2AHB bridge, and misaligned
reserved memory will present as corrupted data.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20191016233950.10100-1-andrew@aj.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-09-25 14:08:14 +09:30
Brad Bishop
44ddc4de87 soc: aspeed: lpc: Add AST2600 compatible strings
The AST2600 has the same lpc-ctrl and lpc-snoop devices as the
AST2500.

Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20190925125610.12096-4-bradleyb@fuzziesquirrel.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-09-25 14:02:43 +09:30
Joel Stanley
e0218dca57 soc: aspeed: Add soc info driver
This adds a SOC_BUS info driver for the ASPEED platform.

The full ID table is preserved in this commit message in case someone
finds a need to change the implemntation in the future.

	{ "AST1100-A0", 0x00000200 },
	{ "AST1100-A1", 0x00000201 },
	{ "AST1100-A2", 0x00000202 },
	{ "AST1100-A3", 0x00000202 },

	{ "AST2050-A0", 0x00000200 },
	{ "AST2050-A1", 0x00000201 },
	{ "AST2050-A2", 0x00000202 },
	{ "AST2050-A3", 0x00000202 },

	{ "AST2100-A0", 0x00000300 },
	{ "AST2100-A1", 0x00000301 },
	{ "AST2100-A2", 0x00000302 },
	{ "AST2100-A3", 0x00000302 },

	{ "AST2150-A0", 0x00000202 },
	{ "AST2150-A1", 0x00000202 },

	{ "AST2200-A0", 0x00000102 },
	{ "AST2200-A1", 0x00000102 },

	{ "AST2300-A0", 0x01000003 },
	{ "AST2300-A1", 0x01010303 },

	{ "AST1300-A1", 0x01010003 },
	{ "AST1050-A1", 0x01010203 },

	{ "AST2400-A0", 0x02000303 },
	{ "AST2400-A1", 0x02010303 },
	{ "AST1400-A1", 0x02010103 },
	{ "AST1250-A1", 0x02010303 },

	{ "AST2500-A0", 0x04000303 },
	{ "AST2510-A0", 0x04000103 },
	{ "AST2520-A0", 0x04000203 },
	{ "AST2530-A0", 0x04000403 },
	{ "AST2500-A1", 0x04010303 },
	{ "AST2510-A1", 0x04010103 },
	{ "AST2520-A1", 0x04010203 },
	{ "AST2530-A1", 0x04010403 },
	{ "AST2500-A2", 0x04030303 },
	{ "AST2510-A2", 0x04030103 },
	{ "AST2520-A2", 0x04030203 },
	{ "AST2530-A2", 0x04030403 },

	{ "AST2600-A0", 0x05000303 },
	{ "AST2600-A1", 0x05010303 },
	{ "AST2600-A2", 0x05020303 },
	{ "AST2620-A1", 0x05010203 },
	{ "AST2620-A2", 0x05020203 },

Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20200921091644.133107-3-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-09-25 10:14:06 +09:30
Kevin Hilman
5aabf1180f soc: amlogic: pm-domains: use always-on flag
Rather than use a governor to keep these domains always-on, instead
use the flag GENPD_FLAG_ALWAYS_ON.  This has the same effect, but with
much lower overhead since the governor path is not used at all.

Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200921222135.7145-1-khilman@baylibre.com
2020-09-24 09:50:01 -07:00
Wang Hai
d97b957e32 soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk
Fix smatch warning:

drivers/soc/fsl/qe/ucc.c:526
 ucc_set_tdm_rxtx_clk() warn: unsigned 'tdm_num' is never less than zero.

'tdm_num' is u32 type, never less than zero.

Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-09-22 18:25:29 -05:00
Liu Shixin
5ed2da99e3 soc: fsl: qman: convert to use be32_add_cpu()
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-09-22 18:16:15 -05:00
Jason Yan
72f7fe2d6a soc: fsl: dpio: remove set but not used 'addr_cena'
This addresses the following gcc warning with "make W=1":

drivers/soc/fsl/dpio/qbman-portal.c: In function
‘qbman_swp_enqueue_multiple_direct’:
drivers/soc/fsl/dpio/qbman-portal.c:650:11: warning: variable
‘addr_cena’ set but not used [-Wunused-but-set-variable]
  650 |  uint64_t addr_cena;
      |           ^~~~~~~~~

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-09-22 17:43:54 -05:00
Krzysztof Kozlowski
750cf40c0f soc: fsl: qbman: Fix return value on success
On error the function was meant to return -ERRNO.  This also fixes
compile warning:

  drivers/soc/fsl/qbman/bman.c:640:6: warning: variable 'err' set but not used [-Wunused-but-set-variable]

Fixes: 0505d00c8d ("soc/fsl/qbman: Cleanup buffer pools if BMan was initialized prior to bootup")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-09-22 17:42:22 -05:00
Krzysztof Kozlowski
bc38325703 soc: actions: include header to fix missing prototype
Include the header with prototype of owl_sps_set_pg to fix:

  drivers/soc/actions/owl-sps-helper.c:16:5: warning: no previous prototype for 'owl_sps_set_pg' [-Wmissing-prototypes]

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2020-09-22 12:45:16 +05:30
Joel Stanley
592693a1f8 soc: aspeed: Improve kconfig
Reword the kconfig text to be consistent and reflect that most drivers
are available for all supported ASPEED chips (2400, 2500 and 2600).

Rearrange the symbols the SoC drivers depend on so the menu doesn't
appear unless you are building for ASPEED for compile testing.

The SYSCON_MFD and REGMAP options are usually selected by drivers that
need them, so do this.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20200916125731.784527-1-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-09-21 18:50:27 +09:30
Qinglang Miao
74e0e43a09 soc: ti: Convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-20 19:30:30 -07:00
Neil Armstrong
525054782a soc: amlogic: meson-ee-pwrc: add support for the Meson AXG SoCs
The Power Controller in the Amlogic AXG SoCs is similar to the GXL one
but with less VPU memory domains to enable and a supplementary Audio
memory power domain.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200917064702.1459-3-narmstrong@baylibre.com
2020-09-18 13:22:14 -07:00
Thierry Reding
639448912b arm64: tegra: Initial Tegra234 VDK support
The NVIDIA Tegra234 VDK is a simulation platform for the Orin SoC. It
supports a subset of the peripherals that will be available in the final
chip and serves as a bootstrapping platform.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:58:07 +02:00
Thierry Reding
34e214a996 soc/tegra: pmc: Add Tegra234 support
The PMC block is largely similar to that found on earlier chips, but
not completely compatible. Allow binding to the instantiation found on
Tegra234.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:37 +02:00
Thierry Reding
f98485e4ed soc/tegra: pmc: Reorder reset sources/levels definitions
Move the definitions of reset sources and levels into a more natural
location.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:33 +02:00
Thierry Reding
03d2852307 soc/tegra: misc: Add Tegra234 support
The MISC block is largely similar to that found on earlier chips, but
not completely compatible. Allow binding to the instantiation found on
Tegra234.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:31 +02:00
Thierry Reding
1f44febf71 soc/tegra: fuse: Add Tegra234 support
Add support for FUSE block found on the Tegra234 SoC, which is largely
similar to the IP found on previous generations.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:29 +02:00
Thierry Reding
52e6d399a4 soc/tegra: fuse: Implement tegra_is_silicon()
This function can be used by drivers to determine whether code is
running on silicon or on a simulation platform.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:26 +02:00
Thierry Reding
775edf7856 soc/tegra: fuse: Extract tegra_get_platform()
This function extracts the PRE_SI_PLATFORM field from the HIDREV
register and can be used to determine which platform the kernel runs on
(silicon, simulation, ...). Note that while only Tegra194 and later
define this field, it should be safe to call this on prior generations
as well since this field should read as 0, indicating silicon.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:22 +02:00
Qilong Zhang
2899347249 soc: qcom: llcc: use devm_platform_ioremap_resource_byname()
Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20200916111517.99670-1-zhangqilong3@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-17 04:24:49 +00:00
Yoshihiro Shimoda
1b4298f000 soc: renesas: r8a779a0-sysc: Add r8a779a0 support
Add support for R-Car V3U (R8A779A0) SoC power areas and register
access, because register specification differs from R-Car Gen2/3.

Inspired by patches in the BSP by Tho Vu.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599810232-29035-5-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-16 08:57:31 +02:00
Sibi Sankar
ba34f977c3 soc: qcom: apr: Fixup the error displayed on lookup failure
APR client incorrectly prints out "ret" variable on pdr_add_lookup failure,
it should be printing the error value returned by the lookup instead.

Fixes: 8347356626 ("soc: qcom: apr: Add avs/audio tracking functionality")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200915154232.27523-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-15 16:12:59 +00:00
Sibi Sankar
7a366707bb soc: qcom: pdr: Fixup array type of get_domain_list_resp message
The array type of get_domain_list_resp is incorrectly marked as NO_ARRAY.
Due to which the following error was observed when using pdr helpers with
the downstream proprietary pd-mapper. Fix this up by marking it as
VAR_LEN_ARRAY instead.

Err logs:
qmi_decode_struct_elem: Fault in decoding: dl(2), db(27), tl(160), i(1), el(1)
failed to decode incoming message
PDR: tms/servreg get domain list txn wait failed: -14
PDR: service lookup for tms/servreg failed: -14

Tested-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Fixes: fbe639b44a ("soc: qcom: Introduce Protection Domain Restart helpers")
Reported-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200914145807.1224-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-14 23:53:29 +00:00
Konrad Dybcio
a32a43e00e soc: qcom: socinfo: Add msm8992/4 and apq8094 SoC IDs
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200602201229.322578-1-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-14 23:27:24 +00:00
Olof Johansson
bd2fad8cd3 This pull request contains Broadcom SoCs drivers changes for 5.10,
please pull the following:
 
 - Alvaro adds support for the BCM63xx (DSL) SoCs power domain controller
   and adds support for the 6318, 6328, 6362, 63268.
 
 - Florian adds support for tuning the Bus Interface Unit on 72164 and
   72165, enables the Brahma-B53 and Cortex-A72 read-ahead cache for the
   64-bit capable ARCH_BRCMSTB platforms, and finally updates the GISB
   driver to support breakpoint notifications.
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Merge tag 'arm-soc/for-5.10/drivers' of https://github.com/Broadcom/stblinux into arm/drivers

This pull request contains Broadcom SoCs drivers changes for 5.10,
please pull the following:

- Alvaro adds support for the BCM63xx (DSL) SoCs power domain controller
  and adds support for the 6318, 6328, 6362, 63268.

- Florian adds support for tuning the Bus Interface Unit on 72164 and
  72165, enables the Brahma-B53 and Cortex-A72 read-ahead cache for the
  64-bit capable ARCH_BRCMSTB platforms, and finally updates the GISB
  driver to support breakpoint notifications.

* tag 'arm-soc/for-5.10/drivers' of https://github.com/Broadcom/stblinux:
  bus: brcmstb_gisb: Add support for breakpoint interrupts
  dt-bindings: bus: Document breakpoint interrupt for gisb-arb
  soc: bcm: brcmstb: biuctrl: Change RAC data line prefetching after 4 consecutive lines
  soc: bcm: brcmstb: biuctrl: Change RAC prefetch distance from +/-1 to +/- 2
  soc: bcm: brcmstb: biuctrl: Tune MCP settings for 72165
  soc: bcm: brcmstb: biuctrl: Tune MCP settings for 72164
  MIPS: BMIPS: dts: add BCM63268 power domain support
  MIPS: BMIPS: dts: add BCM6362 power domain support
  MIPS: BMIPS: dts: add BCM6328 power domain support
  soc: bcm: add BCM63xx power domain driver
  MIPS: BMIPS: add BCM6318 power domain definitions
  MIPS: BMIPS: add BCM63268 power domain definitions
  MIPS: BMIPS: add BCM6362 power domain definitions
  MIPS: BMIPS: add BCM6328 power domain definitions
  dt-bindings: soc: brcm: add BCM63xx power domain binding
  soc: bcm: brcmstb: biuctrl: Enable Read-ahead cache
  bus: brcmstb_gisb: Shorten prints

Link: https://lore.kernel.org/r/20200912032153.1216354-3-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:40:18 -07:00
Olof Johansson
989286ffe8 Add initial genpd support for omaps to drop more platform data
We now drop legacy platform data for RTC on am3, am4 and dra7.
 And we add initial genpd support for PRM (Power and Reset Manager)
 and use it to drop legacy platform data for am3 sgx and omap4/5
 l4_abe interconnect instance.
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Merge tag 'omap-for-v5.10/ti-sysc-drop-pdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc

Add initial genpd support for omaps to drop more platform data

We now drop legacy platform data for RTC on am3, am4 and dra7.
And we add initial genpd support for PRM (Power and Reset Manager)
and use it to drop legacy platform data for am3 sgx and omap4/5
l4_abe interconnect instance.

* tag 'omap-for-v5.10/ti-sysc-drop-pdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Drop legacy platform data for dra7 rtcss
  ARM: OMAP2+: Drop legacy platform data for am3 and am4 rtc
  soc: ti: pm33xx: Simplify RTC usage to prepare to drop platform data
  ARM: dts: Configure omap4 and 5 l4_abe for genpd and drop platform data
  ARM: dts: Configure am3 and am4 sgx for genpd and drop platform data
  soc: ti: omap-prm: Configure omap4 and 5 l4_abe power domain
  soc: ti: omap-prm: Configure sgx power domain for am3 and am4
  soc: ti: omap-prm: Add basic power domain support
  dt-bindings: omap: Update PRM binding for genpd

Link: https://lore.kernel.org/r/pull-1599132307-761202@atomide.com-2
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:17:42 -07:00
Olof Johansson
c9c7ddd0d7 Versatile SoC updates for the v5.10 kernel cycle:
- Drop a static qualifier in integrator_soc_init()
 - Remove Integrator and Versatile from PHYS_OFFSET
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Merge tag 'versatile-soc-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into arm/soc

Versatile SoC updates for the v5.10 kernel cycle:

- Drop a static qualifier in integrator_soc_init()
- Remove Integrator and Versatile from PHYS_OFFSET

* tag 'versatile-soc-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
  ARM: versatile: Remove Integrator and Realview from PHYS_OFFSET
  soc: integrator: Drop pointless static qualifier in integrator_soc_init()

Link: https://lore.kernel.org/r/CACRpkdYYDSg8FAjJAqew5yEu7H1Y3E1rPN9TL25K31T=QWATuA@mail.gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:16:09 -07:00
Olof Johansson
465c335bb5 Samsung S3C24xx and S3C64xx machine code cleanup for v5.10
Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
 also touches files shared with S5Pv210 and Exynos.  This is mostly Arnd
 Bergmann work which Krzysztof Kozlowski took over, rebased and polished.
 
 The goal is to cleanup, merge and finally make the Samsung S3C24xx and
 S3C64xx architectures multiplatform.  The multiplatform did not happen
 yet here - just cleaning up and merging into one arch/arm/mach-s3c
 directory.  However this is step forward for multiplatform or at least
 to keep this code still maintainable.
 
 This pulls also branch with changes for Samsung SoC sound drivers from
 broonie/sound because the cleanups there were part of this series and
 all further patches depend on them.
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Merge tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc

Samsung S3C24xx and S3C64xx machine code cleanup for v5.10

Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
also touches files shared with S5Pv210 and Exynos.  This is mostly Arnd
Bergmann work which Krzysztof Kozlowski took over, rebased and polished.

The goal is to cleanup, merge and finally make the Samsung S3C24xx and
S3C64xx architectures multiplatform.  The multiplatform did not happen
yet here - just cleaning up and merging into one arch/arm/mach-s3c
directory.  However this is step forward for multiplatform or at least
to keep this code still maintainable.

This pulls also branch with changes for Samsung SoC sound drivers from
broonie/sound because the cleanups there were part of this series and
all further patches depend on them.

* tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (62 commits)
  ARM: s3c: Avoid naming clash of S3C24xx and S3C64xx timer setup
  ARM: s3c: Cleanup from old plat-samsung include
  ARM: s3c: make headers local if possible
  ARM: s3c: move into a common directory
  ARM: s3c24xx: stop including mach/hardware.h from mach/io.h
  cpufreq: s3c24xx: move low-level clk reg access into platform code
  cpufreq: s3c2412: use global s3c2412_cpufreq_setrefresh
  ARM: s3c: remove cpufreq header dependencies
  cpufreq: s3c24xx: split out registers
  fbdev: s3c2410fb: remove mach header dependency
  ARM: s3c24xx: bast: avoid irq_desc array usage
  ARM: s3c24xx: spi: avoid hardcoding fiq number in driver
  ARM: s3c24xx: include mach/irqs.h where needed
  ARM: s3c24xx: move s3cmci pinctrl handling into board files
  ARM: s3c24xx: move iis pinctrl config into boards
  ARM: s3c24xx: move spi fiq handler into platform
  ARM: s3c: adc: move header to linux/soc/samsung
  ARM: s3c24xx: move irqchip driver back into platform
  ARM: s3c24xx: move regs-spi.h into spi driver
  ARM: s3c64xx: remove mach/hardware.h
  ...

Link: https://lore.kernel.org/r/20200831154751.7551-1-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:15:01 -07:00
Peter Ujfalusi
4f02044123 soc: ti: k3-socinfo: Add entry for J7200
Update K3 chipinfo driver to support new TI J7200 SoC.
It's JTAG PARTNO is 0xBB6D.

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:47:39 -07:00
Grzegorz Jaszczyk
ba59c9b43c soc: ti: pruss: support CORECLK_MUX and IEPCLK_MUX
The IEPCLK_MUX is present on all SoCs whereas the CORECLK_MUX is present
only on AM65x SoCs and J721E. Add support for both these CLK muxes.

This allows the clock rates and clock parents for these to be controlled
through DT leveraging the clk infrastructure for configuring the default
parents and rates.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:47:10 -07:00
Tero Kristo
efa5c01cd7 soc: ti: ti_sci_pm_domains: switch to use multiple genpds instead of one
Current implementation of the genpd support over TI SCI uses a single
genpd across the whole SoC, and attaches multiple devices to this. This
solution has its drawbacks, like it is currently impossible to attach
more than one power domain to a device; the core genpd implementation
requires one genpd per power-domain entry in DT for a single device.
Also, some devices like USB apparently require their own genpd during
probe time, the current shared approach in use does not work at all.

Switch the implementation over to use a single genpd per power domain
entry in DT. The domains are registered with the onecell approach, but
we also add our own xlate service due to recent introduction of the
extended flag for TI SCI PM domains; genpd core xlate service requires
a single cell per powerdomain, but we are using two cells.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:47:08 -07:00
Suman Anna
557003a98f soc: ti: pruss: Enable support for ICSSG subsystems on K3 J721E SoCs
The K3 J721E family of SoCs have a revised version of the PRU-ICSS (ICSSG)
processor subsystem present on K3 AM65x SoCs. These SoCs contain typically
two ICSSG instances named ICSSG0 and ICSSG1. The two ICSSGs are identical
to each other for the most part with minor SoC integration differences and
capabilities. The ICSSG1 supports slightly enhanced features like SGMII
mode Ethernet, while the ICSSG0 instance is limited to MII mode only.

There is no change in the Interrupt Controller w.r.t AM65x. All other
integration aspects are very similar to the ICSSGs on AM65x SoCs.

The existing pruss platform driver has been updated to support these new
ICSSG instances through new J721E specific compatibles.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:37 -07:00
Suman Anna
6530cd9b20 soc: ti: pruss: Enable support for ICSSG subsystems on K3 AM65x SoCs
The K3 AM65x family of SoCs have the next generation of the PRU-ICSS
processor subsystem capable of supporting Gigabit Ethernet, and is
commonly referred to as ICSSG. These SoCs contain typically three
ICSSG instances named ICSSG0, ICSSG1 and ICSSG2. The three ICSSGs are
identical to each other for the most part with minor SoC integration
differences and capabilities. The ICSSG2 supports slightly enhanced
features like SGMII mode Ethernet, while the ICSS0 and ICSSG1 instances
are limited to MII mode only.

The ICSSGs on K3 AM65x SoCs are in general super-sets of the PRUSS on the
AM57xx/66AK2G SoCs. They include two additional auxiliary PRU cores called
RTUs and few other additional sub-modules. The interrupt integration is
also different on the K3 AM65x SoCs and are propagated through various
SoC-level Interrupt Router and Interrupt Aggregator blocks. Other IP level
differences include different constant tables, differences in system event
interrupt input sources etc. They also do not have a programmable module
reset line like those present on AM33xx/AM43xx SoCs. The modules are reset
just like any other IP with the SoC's global cold/warm resets.

The existing pruss platform driver has been updated to support these new
ICSSG instances through new AM65x specific compatibles. A build dependency
with ARCH_K3 is added to enable building all the existing PRUSS platform
drivers for this ARMv8 platform.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:36 -07:00
Suman Anna
3227c8daac soc: ti: pruss: Add support for PRU-ICSS subsystems on 66AK2G SoC
The 66AK2G SoC supports two PRU-ICSS instances, named PRUSS0 and PRUSS1,
each of which has two PRU processor cores. The two PRU-ICSS instances
are identical to each other with few minor SoC integration differences,
and are very similar to the PRU-ICSS1 of AM57xx/AM43xx. The Shared Data
RAM size is larger and the number of interrupts coming into MPU INTC
is like the instances on AM437x. There are also few other differences
attributing to integration in Keystone architecture (like no SYSCFG
register or PRCM handshake protocols). Other IP level differences
include different constant table, differences in system event interrupt
input sources etc. They also do not have a programmable module reset
line like those present on AM33xx/AM43xx SoCs. The modules are reset
just like any other IP with the SoC's global cold/warm resets.

The existing PRUSS platform driver has been enhanced to support these
66AK2G PRU-ICSS instances through new 66AK2G specific compatible for
properly probing and booting all the different PRU cores in each
PRU-ICSS processor subsystem. A build dependency with ARCH_KEYSTONE
is added to enable the driver to be built in K2G-only configuration.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:36 -07:00
Suman Anna
ae19b8a145 soc: ti: pruss: Add support for PRU-ICSS subsystems on AM57xx SoCs
The AM57xx family of SoCs supports two PRU-ICSS instances, each of
which has two PRU processor cores. The two PRU-ICSS instances are
identical to each other, and are very similar to the PRU-ICSS1 of
AM33xx/AM43xx except for a few minor differences like the RAM sizes
and the number of interrupts coming into the MPU INTC. They do
not have a programmable module reset line unlike those present on
AM33xx/AM43xx SoCs. The modules are reset just like any other IP
with the SoC's global cold/warm resets. Each PRU-ICSS's INTC is also
preceded by a Crossbar that enables multiple external events to be
routed to a specific number of input interrupt events. Any interrupt
event directed towards PRUSS needs this crossbar to be setup properly
on the firmware side.

The existing PRUSS platform driver has been enhanced to support
these AM57xx PRU-ICSS instances through new AM57xx specific
compatible for properly probing and booting all the different PRU
cores in each PRU-ICSS processor subsystem. A build dependency with
SOC_DRA7XX is also added to enable the driver to be built in
AM57xx-only configuration (there is no separate Kconfig option
for AM57xx vs DRA7xx).

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:35 -07:00
Suman Anna
78251639d3 soc: ti: pruss: Add support for PRU-ICSSs on AM437x SoCs
The AM437x SoCs have two different PRU-ICSS subsystems: PRU-ICSS1
and a smaller PRU-ICSS0. Enhance the PRUSS platform driver to support
both the PRU-ICSS sub-systems on these SoCs.

The PRU-ICSS1 on AM437x is very similar to the PRU-ICSS on AM33xx
except for few minor differences - increased Instruction RAM, increased
Shared Data RAM2, and 1 less interrupt (PRUSS host interrupt 7 which is
redirected to the other PRUSS) towards the MPU INTC. The PRU-ICSS0 is
a cut-down version of the IP, with less DRAM per PRU, no Shared DRAM etc.
It also does not have direct access to L3 bus regions, there is a single
interface to L3 for both PRUSS0 and PRUSS1, and it would have to go
through the PRUSS1's interface. The PRUSS_SYSCFG register is reserved on
PRUSS0, so any external access requires the programming the corresponding
PRUSS_SYSCFG register in PRUSS1. It does have its own dedicated I/O lines
though. Note that this instance does not support any PRU Ethernet related
use cases.

The adaptation uses SoC-specific compatibles in the driver and uses
a newly introduced pruss_match_private_data structure and the
pruss_get_private_data() function to retrieve a PRUSS instance specific
data using a device-name based lookup logic. The reset and the L3 external
access are managed by the parent interconnect ti-sysc bus driver so that
PRUSS1 and PRUSS0 can be independently supported.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:35 -07:00
Suman Anna
dc1129564a soc: ti: pruss: Add a platform driver for PRUSS in TI SoCs
The Programmable Real-Time Unit - Industrial Communication
Subsystem (PRU-ICSS) is present on various TI SoCs such as
AM335x or AM437x or the Keystone 66AK2G. Each SoC can have
one or more PRUSS instances that may or may not be identical.
For example, AM335x SoCs have a single PRUSS, while AM437x has
two PRUSS instances PRUSS1 and PRUSS0, with the PRUSS0 being
a cut-down version of the PRUSS1.

The PRUSS consists of dual 32-bit RISC cores called the
Programmable Real-Time Units (PRUs), some shared, data and
instruction memories, some internal peripheral modules, and
an interrupt controller. The programmable nature of the PRUs
provide flexibility to implement custom peripheral interfaces,
fast real-time responses, or specialized data handling.

The PRU-ICSS functionality is achieved through three different
platform drivers addressing a specific portion of the PRUSS.
Some sub-modules of the PRU-ICSS IP reuse some of the existing
drivers (like davinci mdio driver or the generic syscon driver).
This design provides flexibility in representing the different
modules of PRUSS accordingly, and at the same time allowing the
PRUSS driver to add some instance specific configuration within
an SoC.

The PRUSS platform driver deals with the overall PRUSS and is
used for managing the subsystem level resources like various
memories and the CFG module. It is responsible for the creation
and deletion of the platform devices for the child PRU devices
and other child devices (like Interrupt Controller, MDIO node
and some syscon nodes) so that they can be managed by specific
platform drivers. The PRUSS interrupt controller is managed by
an irqchip driver, while the individual PRU RISC cores are
managed by a PRU remoteproc driver.

The driver currently supports the AM335x SoC, and support for
other TI SoCs will be added in subsequent patches.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:34 -07:00
Grygorii Strashko
95e7be062a soc: ti: k3: ringacc: add am65x sr2.0 support
The AM65x SR2.0 Ringacc has fixed errata i2023 "RINGACC, UDMA: RINGACC and
UDMA Ring State Interoperability Issue after Channel Teardown". This errata
also fixed for J271E SoC.

Use SOC bus data for K3 SoC identification and enable i2023 errate w/a only
for the AM65x SR1.0. This also makes obsolete "ti,dma-ring-reset-quirk" DT
property.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:34:17 -07:00
Jason Yan
1893a2d526
soc: sunxi: sram: remove unneeded semicolon
Eliminate the following coccicheck warning:

drivers/soc/sunxi/sunxi_sram.c:197:2-3: Unneeded semicolon

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200910140546.1191280-1-yanaijie@huawei.com
2020-09-11 17:02:39 +02:00
Stephen Boyd
2bc20f3c84 soc: qcom: rpmh-rsc: Sleep waiting for tcs slots to be free
The busy loop in rpmh_rsc_send_data() is written with the assumption
that the udelay will be preempted by the tcs_tx_done() irq handler when
the TCS slots are all full. This doesn't hold true when the calling
thread is an irqthread and the tcs_tx_done() irq is also an irqthread.
That's because kernel irqthreads are SCHED_FIFO and thus need to
voluntarily give up priority by calling into the scheduler so that other
threads can run.

I see RCU stalls when I boot with irqthreads on the kernel commandline
because the modem remoteproc driver is trying to send an rpmh async
message from an irqthread that needs to give up the CPU for the rpmh
irqthread to run and clear out tcs slots.

 rcu: INFO: rcu_preempt self-detected stall on CPU
 rcu:     0-....: (1 GPs behind) idle=402/1/0x4000000000000002 softirq=2108/2109 fqs=4920
  (t=21016 jiffies g=2933 q=590)
 Task dump for CPU 0:
 irq/11-smp2p    R  running task        0   148      2 0x00000028
 Call trace:
  dump_backtrace+0x0/0x154
  show_stack+0x20/0x2c
  sched_show_task+0xfc/0x108
  dump_cpu_task+0x44/0x50
  rcu_dump_cpu_stacks+0xa4/0xf8
  rcu_sched_clock_irq+0x7dc/0xaa8
  update_process_times+0x30/0x54
  tick_sched_handle+0x50/0x64
  tick_sched_timer+0x4c/0x8c
  __hrtimer_run_queues+0x21c/0x36c
  hrtimer_interrupt+0xf0/0x22c
  arch_timer_handler_phys+0x40/0x50
  handle_percpu_devid_irq+0x114/0x25c
  __handle_domain_irq+0x84/0xc4
  gic_handle_irq+0xd0/0x178
  el1_irq+0xbc/0x180
  save_return_addr+0x18/0x28
  return_address+0x54/0x88
  preempt_count_sub+0x40/0x88
  _raw_spin_unlock_irqrestore+0x4c/0x6c
  ___ratelimit+0xd0/0x128
  rpmh_rsc_send_data+0x24c/0x378
  __rpmh_write+0x1b0/0x208
  rpmh_write_async+0x90/0xbc
  rpmhpd_send_corner+0x60/0x8c
  rpmhpd_aggregate_corner+0x8c/0x124
  rpmhpd_set_performance_state+0x8c/0xbc
  _genpd_set_performance_state+0xdc/0x1b8
  dev_pm_genpd_set_performance_state+0xb8/0xf8
  q6v5_pds_disable+0x34/0x60 [qcom_q6v5_mss]
  qcom_msa_handover+0x38/0x44 [qcom_q6v5_mss]
  q6v5_handover_interrupt+0x24/0x3c [qcom_q6v5]
  handle_nested_irq+0xd0/0x138
  qcom_smp2p_intr+0x188/0x200
  irq_thread_fn+0x2c/0x70
  irq_thread+0xfc/0x14c
  kthread+0x11c/0x12c
  ret_from_fork+0x10/0x18

This busy loop naturally lends itself to using a wait queue so that each
thread that tries to send a message will sleep waiting on the waitqueue
and only be woken up when a free slot is available. This should make
things more predictable too because the scheduler will be able to sleep
tasks that are waiting on a free tcs instead of the busy loop we
currently have today.

Reviewed-by: Maulik Shah <mkshah@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Maulik Shah <mkshah@codeaurora.org>
Cc: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200724211711.810009-1-sboyd@kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-10 16:56:12 +00:00
Douglas Anderson
cb8aed7b92 soc: qcom: socinfo: add SC7180 entry to soc_id array
Add an entry for SC7180 SoC.

Reviewed-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200813080345.1.I85bb28f9ea3fa3bf797ecaf0a5218ced4cfaa6e2@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-10 16:53:48 +00:00
Kathiravan T
7303fbd2f0 soc: qcom: socinfo: add soc id for IPQ6018
Add the SoC ID for IPQ6018 variant.

Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1597645830-30409-1-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-10 16:52:45 +00:00
Yoshihiro Shimoda
8e9529f5cd soc: renesas: rcar-rst: Add support for R-Car V3U
Add support for R-Car V3U (R8A779A0) to the R-Car RST driver.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599470390-29719-12-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 17:01:38 +02:00
Yoshihiro Shimoda
090e87e7fb soc: renesas: Identify R-Car V3U
Add support for identifying the R-Car V3U (R8A779A0) SoC.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599470390-29719-10-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 17:01:38 +02:00
Kuninori Morimoto
6d5aded8d5 soc: renesas: Sort driver description title
This patch sorts each driver by description title in alphabetical order.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a6y2v54o.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 17:01:38 +02:00
Kuninori Morimoto
8fae675850 soc: renesas: Use ARM32/ARM64 for menu description
For easy understanding of architecture and alphabetical merging, this
patch uses ARM32/ARM64 for description.
This prepares for sorting the menu.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87bliiv54u.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 17:01:38 +02:00
Florian Fainelli
10e7dd54cd soc: bcm: brcmstb: biuctrl: Change RAC data line prefetching after 4 consecutive lines
Change the RACPREFDATA(x) setting to prefetch the next 256-byte line
after 4 consecutive lines have been used, instead of after 2 consecutive
lines. This does improve the synthetic memcpy benchmark by an additional
+0.5% on top of the previous change for Cortex-A72 CPUs.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-09-06 12:43:02 -07:00
Florian Fainelli
091353c88b soc: bcm: brcmstb: biuctrl: Change RAC prefetch distance from +/-1 to +/- 2
Change the RAC prefetch distance from +/- 1 to +/- 2 for Cortex-A72 CPUs
since this provides an average of a 3.8% performance increase for
synthetic memcpy benchmarks.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-09-04 13:48:49 -07:00
Florian Fainelli
4029f3b419 soc: bcm: brcmstb: biuctrl: Tune MCP settings for 72165
72165 uses a Brahma-B53 CPU and its Bus Interface Unit, tune it
according to the existing values we have.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-09-04 13:48:42 -07:00
Florian Fainelli
5dfd145aad soc: bcm: brcmstb: biuctrl: Tune MCP settings for 72164
72164 uses a Brahma-B53 CPU and its Bus Interface Unit, tune it
according to the existing values we have.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-09-04 13:44:32 -07:00
Tony Lindgren
0d7ce5c5c4 Merge branch 'omap-for-v5.10/prm-genpd' into omap-for-v5.10/ti-sysc-drop-pdata 2020-09-03 12:06:18 +03:00
Kuninori Morimoto
464d9b349b soc: renesas: Align driver description titles
Now, Renesas SoC drivers are under menu, but current descriptions are
not aligned.
This patch aligns them.

    - Emma Mobile EV2
    - RZ/A1H (R7S72100)
      ...
    - R-Car H2 (R8A77900)
      ...
    - Renesas R-Car H3 ES1.x SoC Platform
      ...
    - R-Car H2 System Controller support
    - R-Car M2-W/N System Controller support
    - R-Car V2H System Controller support
    - R-Car E2 System Controller support
    - R-Car H3 System Controller support
    - R-Car M3-W System Controller support
    - R-Car M3-W+ System Controller support
    - R-Car M3-N System Controller support

    + SoC Platform support for Emma Mobile EV2
    + SoC Platform support for RZ/A1H+
      ...
    + SoC Platform support for R-Car H2
      ...
    + SoC Platform support for R-Car H3 ES1.x
      ...
    + System Controller support for R-Car H2
    + System Controller support for R-Car M2-W/N
    + System Controller support for R-Car V2H
    + System Controller support for R-Car E2
    + System Controller support for R-Car H3
    + System Controller support for R-Car M3-W
    + System Controller support for R-Car M3-W+
    + System Controller support for R-Car M3-N

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zh6kyedc.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-01 10:22:16 +02:00
Kuninori Morimoto
928bfbc6c7 soc: renesas: Use menu for Renesas SoC
Renesas related SoC settings are located on TOP level menu,
thus it is very verbose.
This patch groups Renesas related settings into
"Renesas SoC driver support" menu.

And it aligns config menu names.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87k0xxho7t.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-08-25 11:21:55 +02:00
Stephan Gerhold
dd461cd918 opp: Allow dev_pm_opp_get_opp_table() to return -EPROBE_DEFER
The OPP core manages various resources, e.g. clocks or interconnect paths.
These resources are looked up when the OPP table is allocated once
dev_pm_opp_get_opp_table() is called the first time (either directly
or indirectly through one of the many helper functions).

At this point, the resources may not be available yet, i.e. looking them
up will result in -EPROBE_DEFER. Unfortunately, dev_pm_opp_get_opp_table()
is currently unable to propagate this error code since it only returns
the allocated OPP table or NULL.

This means that all consumers of the OPP core are required to make sure
that all necessary resources are available. Usually this happens by
requesting them, checking the result and releasing them immediately after.

For example, we have added "dev_pm_opp_of_find_icc_paths(dev, NULL)" to
several drivers now just to make sure the interconnect providers are
ready before the OPP table is allocated. If this call is missing,
the OPP core will only warn about this and then attempt to continue
without interconnect. This will eventually fail horribly, e.g.:

    cpu cpu0: _allocate_opp_table: Error finding interconnect paths: -517
    ... later ...
    of: _read_bw: Mismatch between opp-peak-kBps and paths (1 0)
    cpu cpu0: _opp_add_static_v2: opp key field not found
    cpu cpu0: _of_add_opp_table_v2: Failed to add OPP, -22

This example happens when trying to use interconnects for a CPU OPP
table together with qcom-cpufreq-nvmem.c. qcom-cpufreq-nvmem calls
dev_pm_opp_set_supported_hw(), which ends up allocating the OPP table
early. To fix the problem with the current approach we would need to add
yet another call to dev_pm_opp_of_find_icc_paths(dev, NULL).
But actually qcom-cpufreq-nvmem.c has nothing to do with interconnects...

This commit attempts to make this more robust by allowing
dev_pm_opp_get_opp_table() to return an error pointer. Fixing all
the usages is trivial because the function is usually used indirectly
through another helper (e.g. dev_pm_opp_set_supported_hw() above).
These other helpers already return an error pointer.

The example above then works correctly because set_supported_hw() will
return -EPROBE_DEFER, and qcom-cpufreq-nvmem.c already propagates that
error. It should also be possible to remove the remaining usages of
"dev_pm_opp_of_find_icc_paths(dev, NULL)" from other drivers as well.

Note that this commit currently only handles -EPROBE_DEFER for the
clock/interconnects within _allocate_opp_table(). Other errors are just
ignored as before. Eventually those should be propagated as well.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
[ Viresh: skip checking return value of dev_pm_opp_get_opp_table() for
	  EPROBE_DEFER in domain.c, fix NULL return value and reorder
	  code a bit in core.c, and update exynos-asv.c ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-08-25 11:08:54 +05:30