Commit Graph

138 Commits

Author SHA1 Message Date
Arnd Bergmann
e6b66dfb37 Few Keystone fixes for 4.4-rcx
- Fix the optional PDSP firmware loading
 	- Fix linking RAM setup for QMs
 	- Fix crash with clk_ignore_unused
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Merge tag 'keystone-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into fixes

Merge "Few Keystone fixes for 4.4-rcx" from Santosh Shilimkar:
	- Fix the optional PDSP firmware loading
	- Fix linking RAM setup for QMs
	- Fix crash with clk_ignore_unused

* tag 'keystone-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  ARM: dts: keystone: k2l: fix kernel crash when clk_ignore_unused is not in bootargs
  soc: ti: knav_qmss_queue: Fix linking RAM setup for queue managers
  soc: ti: use request_firmware_direct() as acc firmware is optional
2015-11-25 23:48:12 +01:00
Eddie Huang
627b655336 soc: Mediatek: Enable SCPSYS power domain driver by default
If enable Mediatek 8173 SoC, it should also enable power domain
driver. Otherwise access clk subsystem register will fail.

Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-11-24 10:15:38 -08:00
Michal Morawiec
f7f2bccd1f soc: ti: knav_qmss_queue: Fix linking RAM setup for queue managers
Configure linking RAM for both queue managers also in case
when only linking RAM 0 is specified in device tree.

Currently hwqueue driver configures linking RAM(s) to be used
cooperatively by the QMs (shared mode). Therefore if both
queue managers are used then both must be configured with
exactly the same linking RAM info (base address and size)
independent of the number of linking RAM(s) specified in the
device tree.
For proper operation only one linking RAM is required and in most
cases this can be internal one as long as it is able to handle
the number of descriptors used in the system.
Current driver code however skips configuration of second
queue manager if second linking RAM is not specified.
If the configuration for the QM2 is missing there will be
a crash when it tries to push/pop descriptors from its queues.

Signed-off-by: Michal Morawiec <michal.1.morawiec.ext@nokia.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-11-23 10:36:27 -08:00
Murali Karicheri
6af1a07316 soc: ti: use request_firmware_direct() as acc firmware is optional
When firmware image for PDSP firmware is absent in the file system
the kernel boot with ramfs/nfs is stuck for 60 seconds being the
the default timeout. request_firmware_direct() is to take care of
such optional firmware loading and hence replace the call in the
driver with this API.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-11-23 10:32:44 -08:00
Linus Torvalds
b44a3d2a85 ARM: SoC driver updates for v4.4
As we've enabled multiplatform kernels on ARM, and greatly done away with
 the contents under arch/arm/mach-*, there's still need for SoC-related
 drivers to go somewhere.
 
 Many of them go in through other driver trees, but we still have
 drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
 that might be shared between ARM and ARM64 (or just in general makes
 sense to not have under the architecture directory).
 
 This branch contains mostly such code:
 
 - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate
   with power management blocks on these SoCs for use by clock, regulator and
   bus frequency drivers.
 - Allwinner Reduced Serial Bus driver, again used to communicate with PMICs.
 - Drivers for ARM's SCPI (System Control Processor). Not to be confused with
   PSCI (Power State Coordination Interface). SCPI is used to communicate with
   the assistant embedded cores doing power management, and we have yet to see
   how many of them will implement this for their hardware vs abstracting in
   other ways (or not at all like in the past).
 - To make confusion between SCPI and PSCI more likely, this release also
   includes an update of PSCI to interface version 1.0.
 - Rockchip support for power domains.
 - A driver to talk to the firmware on Raspberry Pi.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "As we've enabled multiplatform kernels on ARM, and greatly done away
  with the contents under arch/arm/mach-*, there's still need for
  SoC-related drivers to go somewhere.

  Many of them go in through other driver trees, but we still have
  drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
  that might be shared between ARM and ARM64 (or just in general makes
  sense to not have under the architecture directory).

  This branch contains mostly such code:

   - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to
     communicate with power management blocks on these SoCs for use by
     clock, regulator and bus frequency drivers.

   - Allwinner Reduced Serial Bus driver, again used to communicate with
     PMICs.

   - Drivers for ARM's SCPI (System Control Processor).  Not to be
     confused with PSCI (Power State Coordination Interface).  SCPI is
     used to communicate with the assistant embedded cores doing power
     management, and we have yet to see how many of them will implement
     this for their hardware vs abstracting in other ways (or not at all
     like in the past).

   - To make confusion between SCPI and PSCI more likely, this release
     also includes an update of PSCI to interface version 1.0.

   - Rockchip support for power domains.

   - A driver to talk to the firmware on Raspberry Pi"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
  soc: qcom: smd-rpm: Correct size of outgoing message
  bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus
  bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings
  ARM: bcm2835: add mutual inclusion protection
  drivers: psci: make PSCI 1.0 functions initialization version dependent
  dt-bindings: Correct paths in Rockchip power domains binding document
  soc: rockchip: power-domain: don't try to print the clock name in error case
  soc: qcom/smem: add HWSPINLOCK dependency
  clk: berlin: add cpuclk
  ARM: berlin: dts: add CLKID_CPU for BG2Q
  ARM: bcm2835: Add the Raspberry Pi firmware driver
  soc: qcom: smem: Move RPM message ram out of smem DT node
  soc: qcom: smd-rpm: Correct the active vs sleep state flagging
  soc: qcom: smd: delete unneeded of_node_put
  firmware: qcom-scm: build for correct architecture level
  soc: qcom: smd: Correct SMEM items for upper channels
  qcom-scm: add missing prototype for qcom_scm_is_available()
  qcom-scm: fix endianess issue in __qcom_scm_is_call_available
  soc: qcom: smd: Reject send of too big packets
  soc: qcom: smd: Handle big endian CPUs
  ...
2015-11-10 15:00:03 -08:00
Linus Torvalds
56e0464980 ARM: SoC platform updates for v4.4
New and/or improved SoC support for this release:
 
  - Marvell Berlin:
    * Enable standard DT-based cpufreq
    * Add CPU hotplug support
  - Freescale:
    * Ethernet init for i.MX7D
    * Suspend/resume support for i.MX6UL
  - Allwinner:
    * Support for R8 chipset (used on NTC's $9 C.H.I.P board)
  - Mediatek:
    * SMP support for some platforms
  - Uniphier:
    * L2 support
    * Cleaned up SMP support, etc.
 
 + A handful of other patches around above functionality, and a few other
 smaller changes.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "New and/or improved SoC support for this release:

  Marvell Berlin:
     - Enable standard DT-based cpufreq
     - Add CPU hotplug support

  Freescale:
     - Ethernet init for i.MX7D
     - Suspend/resume support for i.MX6UL

  Allwinner:
     - Support for R8 chipset (used on NTC's $9 C.H.I.P board)

  Mediatek:
     - SMP support for some platforms

  Uniphier:
     - L2 support
     - Cleaned up SMP support, etc.

  plus a handful of other patches around above functionality, and a few
  other smaller changes"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
  ARM: uniphier: rework SMP operations to use trampoline code
  ARM: uniphier: add outer cache support
  Documentation: EXYNOS: Update bootloader interface on exynos542x
  ARM: mvebu: add broken-idle option
  ARM: orion5x: use mac_pton() helper
  ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned
  ARM: sunxi: Add R8 support
  ARM: digicolor: select pinctrl/gpio driver
  arm: berlin: add CPU hotplug support
  arm: berlin: use non-self-cleared reset register to reset cpu
  ARM: mediatek: add smp bringup code
  ARM: mediatek: enable gpt6 on boot up to make arch timer working
  soc: mediatek: Fix random hang up issue while kernel init
  soc: ti: qmss: make acc queue support optional in the driver
  soc: ti: add firmware file name as part of the driver
  Documentation: dt: soc: Add description for knav qmss driver
  ARM: S3C64XX: Use PWM lookup table for mach-smartq
  ARM: S3C64XX: Use PWM lookup table for mach-hmt
  ARM: S3C64XX: Use PWM lookup table for mach-crag6410
  ARM: S3C64XX: Use PWM lookup table for smdk6410
  ...
2015-11-10 14:56:23 -08:00
Linus Torvalds
64fd8c8a0f ARM: SoC non-urgent fixes for v4.4
A handful of fixes that came in and didn't seem warranted to go in through
 the 4.3-rc cycle.
 
  - MAINTAINERS updates for one of the Broadcom platforms and lpc18xx
  - A couple of non-critical Davinci bugfixes
  - A fix to reset irq affinity for TI platforms (silences a warning at reboot)
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-urgent fixes from Olof Johansson:
 "A handful of fixes that came in and didn't seem warranted to go in
  through the 4.3-rc cycle.

   - MAINTAINERS updates for one of the Broadcom platforms and lpc18xx
   - A couple of non-critical Davinci bugfixes
   - A fix to reset irq affinity for TI platforms (silences a warning at
     reboot)"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  MAINTAINERS: update lpc18xx entry with more drivers
  soc: ti: reset irq affinity before freeing irq
  ARM: cns3xxx: pci: avoid potential stack overflow
  ARM: davinci: clock: Correct return values for API functions
  ARM: davinci: re-use %*ph specifier
  MAINTAINERS: add entry for the Broadcom Northstar Plus SoCs
2015-11-10 14:45:05 -08:00
Bjorn Andersson
d13a5c8c4c soc: qcom: smd-rpm: Correct size of outgoing message
With the removal of VLAIS the size was incorrectly changed to only cover
the headers of the packet, resulting in "empty" requests being sent to
the RPM. Correct this so the entire message is transfered.

Fixes: 50e1b29b44 ("soc: qcom: smd: Remove use of VLAIS")
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-31 01:51:20 +00:00
Olof Johansson
00b24d4454 Do the initial setting of the pmic wrap interrupt before requesting the interrupt.
This fixes the corner-case where the pmic is initialized by the bootloader, but
 not the pmic watchdog.
 
 Add support for active wakeup to the scpsys. This allows to keep the power of
 a scpsys domain  during suspend state.
 
 With version v4.3 new subsystem clocks are added to the clock dirver. In late
 init the kernel turns off all unused clocks. This can provoke a hang if
 the kernel tries to access the venc and venc_lt power domain registers.
 Add the necessary parent clocks for this power domains to
 the scpsys so that no random hang happens.
 
 The bootloader of mt6589, mt8135 and mt1827 does not turn on the arm-arch-timer.
 As there is no opensource bootloader in the near future for this architectures
 we enable the arch timer at kernel boot. We need the arch timer for SMP boot.
 
 Add support for SMP on mt6589, mt8127 and mt8135.
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Merge tag 'v4.3-next-soc' of https://github.com/mbgg/linux-mediatek into next/soc

Do the initial setting of the pmic wrap interrupt before requesting the interrupt.
This fixes the corner-case where the pmic is initialized by the bootloader, but
not the pmic watchdog.

Add support for active wakeup to the scpsys. This allows to keep the power of
a scpsys domain  during suspend state.

With version v4.3 new subsystem clocks are added to the clock dirver. In late
init the kernel turns off all unused clocks. This can provoke a hang if
the kernel tries to access the venc and venc_lt power domain registers.
Add the necessary parent clocks for this power domains to
the scpsys so that no random hang happens.

The bootloader of mt6589, mt8135 and mt1827 does not turn on the arm-arch-timer.
As there is no opensource bootloader in the near future for this architectures
we enable the arch timer at kernel boot. We need the arch timer for SMP boot.

Add support for SMP on mt6589, mt8127 and mt8135.

* tag 'v4.3-next-soc' of https://github.com/mbgg/linux-mediatek:
  ARM: mediatek: add smp bringup code
  ARM: mediatek: enable gpt6 on boot up to make arch timer working
  soc: mediatek: Fix random hang up issue while kernel init
  soc: mediatek: add scpsys support active_wakeup
  soc: mediatek: Move the initial setting of pmic wrap interrupt before requesting irq.

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-23 10:22:05 -07:00
Olof Johansson
fe9990f9fd Some fixes for the new power-domain driver, including restricting
Rockchip Kconfig options, fixing a possible null-pointer and a
 typo in the dt-bindings.
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Merge tag 'v4.4-rockchip-drivers2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers

Some fixes for the new power-domain driver, including restricting
Rockchip Kconfig options, fixing a possible null-pointer and a
typo in the dt-bindings.

* tag 'v4.4-rockchip-drivers2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  dt-bindings: Correct paths in Rockchip power domains binding document
  soc: rockchip: power-domain: don't try to print the clock name in error case
  soc: rockchip: Restrict to ARCH_ROCKCHIP

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-23 10:18:34 -07:00
Heiko Stuebner
c3ce5b3768 soc: rockchip: power-domain: don't try to print the clock name in error case
When we never got the the clock-reference, i.e. when IS_ERR(clk) is true,
don't try to print the clock name via %pC as this of course produces a
null-pointer-dereference in __clk_get_name().

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Caesar Wang <wxt@rock-chips.com>
2015-10-16 09:23:59 +02:00
Arnd Bergmann
73ebb85444 soc: qcom/smem: add HWSPINLOCK dependency
This fixes a build error when smem is enabled without hwspinlock:

drivers/built-in.o: In function `qcom_smem_alloc':
rockchip-efuse.c:(.text+0x7a3e4): undefined reference to `__hwspin_lock_timeout'
rockchip-efuse.c:(.text+0x7a568): undefined reference to `__hwspin_unlock'
drivers/built-in.o: In function `qcom_smem_remove':
rockchip-efuse.c:(.text+0x7a5cc): undefined reference to `hwspin_lock_free'
drivers/built-in.o: In function `qcom_smem_probe':
rockchip-efuse.c:(.text+0x7a960): undefined reference to `hwspin_lock_request_specific'
rockchip-efuse.c:(.text+0x7a988): undefined reference to `of_hwspin_lock_get_id'
drivers/built-in.o: In function `qcom_smem_get':
rockchip-efuse.c:(.text+0x7aa24): undefined reference to `__hwspin_lock_timeout'
rockchip-efuse.c:(.text+0x7aafc): undefined reference to `__hwspin_unlock'

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-10-15 23:04:11 +02:00
Arnd Bergmann
ead67421a9 Qualcomm ARM Based SoC Updates for 4.4
* Implement id_table driver matching in SMD
 * Avoid NULL pointer exception on remove of SMEM
 * Reorder SMEM/SMD configs
 * Make qcom_smem_get() return a pointer
 * Handle big endian CPUs correctly in SMEM
 * Represent SMD channel layout in structures
 * Use __iowrite32_copy() in SMD
 * Remove use of VLAIs in SMD
 * Handle big endian CPUs correctly in SMD/RPM
 * Handle big endian CPUs corretly in SMD
 * Reject sending SMD packets that are too large
 * Fix endianness issue in SCM __qcom_scm_is_call_available
 * Add missing prototype for qcom_scm_is_available()
 * Correct SMEM items for upper channels
 * Use architecture level to build SCM correctly
 * Delete unneeded of_node_put in SMD
 * Correct active/slep state flagging in SMD/RPM
 * Move RPM message ram out of SMEM DT node
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Merge tag 'qcom-soc-for-4.4' of git://codeaurora.org/quic/kernel/agross-msm into next/drivers

Pull "Qualcomm ARM Based SoC Updates for 4.4" from Andy Gross:

* Implement id_table driver matching in SMD
* Avoid NULL pointer exception on remove of SMEM
* Reorder SMEM/SMD configs
* Make qcom_smem_get() return a pointer
* Handle big endian CPUs correctly in SMEM
* Represent SMD channel layout in structures
* Use __iowrite32_copy() in SMD
* Remove use of VLAIs in SMD
* Handle big endian CPUs correctly in SMD/RPM
* Handle big endian CPUs corretly in SMD
* Reject sending SMD packets that are too large
* Fix endianness issue in SCM __qcom_scm_is_call_available
* Add missing prototype for qcom_scm_is_available()
* Correct SMEM items for upper channels
* Use architecture level to build SCM correctly
* Delete unneeded of_node_put in SMD
* Correct active/slep state flagging in SMD/RPM
* Move RPM message ram out of SMEM DT node

* tag 'qcom-soc-for-4.4' of git://codeaurora.org/quic/kernel/agross-msm:
  soc: qcom: smem: Move RPM message ram out of smem DT node
  soc: qcom: smd-rpm: Correct the active vs sleep state flagging
  soc: qcom: smd: delete unneeded of_node_put
  firmware: qcom-scm: build for correct architecture level
  soc: qcom: smd: Correct SMEM items for upper channels
  qcom-scm: add missing prototype for qcom_scm_is_available()
  qcom-scm: fix endianess issue in __qcom_scm_is_call_available
  soc: qcom: smd: Reject send of too big packets
  soc: qcom: smd: Handle big endian CPUs
  soc: qcom: smd_rpm: Handle big endian CPUs
  soc: qcom: smd: Remove use of VLAIS
  soc: qcom: smd: Use __iowrite32_copy() instead of open-coding it
  soc: qcom: smd: Represent channel layout in structures
  soc: qcom: smem: Handle big endian CPUs
  soc: qcom: Make qcom_smem_get() return a pointer
  soc: qcom: Reorder SMEM/SMD configs
  soc: qcom: smem: Avoid NULL pointer exception on remove
  soc: qcom: smd: Implement id_table driver matching
2015-10-15 23:03:24 +02:00
Arnd Bergmann
cfd96d3e74 ARM Keystone SOC driver updates for 4.4
Documentation and support to be able to load the PDSP
 	firmware necessary for accumulator operation.
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Merge tag 'keystone-driver-soc_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/soc

Merge "ARM Keystone SOC driver updates for 4.4" from Santosh Shilimkar:

	Documentation and support to be able to load the PDSP
	firmware necessary for accumulator operation.

* tag 'keystone-driver-soc_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  soc: ti: qmss: make acc queue support optional in the driver
  soc: ti: add firmware file name as part of the driver
  Documentation: dt: soc: Add description for knav qmss driver
2015-10-15 22:22:26 +02:00
Arnd Bergmann
d72b712824 Merge tag 'arm-soc/for-4.4/soc' of http://github.com/Broadcom/stblinux into next/soc
Merge "Broadcom soc changes for v4.4 (try 2)" from Florian Fainelli:

This pull request contains the following Broadcom SoC platform and driver changes:

- Brian Norris create a drivers/soc/brcmstb/ stub as a place holder for SoC-specific
  code which is coming next

- Florian Fainelli adds support for configuring the BCM7xxx SoCs Bus Interface Unit
  with their specific write-pairing setting, which must be saved and restored during
  system-wide suspend/resume, and consequently updates the brcmstb machine code to
  initialize the BIU

- Jon Mason adds support for the Northstar Plus SoCs by introducing a custom machine
  descriptor matching their compatible string and setting up the PL310 L2 cache and
  enabling the relevant ARM errata for their Cortex-A9

* tag 'arm-soc/for-4.4/soc' of http://github.com/Broadcom/stblinux:
  ARM: brcmstb: Setup BIU control registers during boot
  soc: brcmstb: Add Bus Interface Unit control setup
  soc: add stubs for brcmstb SoC's
  ARM: NSP: Add basic support for Broadcom Northstar Plus SoC
2015-10-15 22:09:07 +02:00
Stephen Boyd
d0bfd7c9b1 soc: qcom: smem: Move RPM message ram out of smem DT node
SMEM is a software construct built on top of a DDR reserved region
and sometimes a device memory region called RPM message ram. Having
the RPM message ram in the smem DT node's reg property leads to the
smem node being located in different places depending on if the
message ram is being used or not. Let's add a qcom specific
property, qcom,rpm-msg-ram, and point to the device memory from
the SMEM node via a phandle.  As SMEM is a software construct, it
really needs to reside at the root of the DT regardless of whether
it's using the message ram or not.

Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:40 -05:00
Bjorn Andersson
a8ddd1b998 soc: qcom: smd-rpm: Correct the active vs sleep state flagging
The BIT() was incorrectly inherited from family A and should not be used
on family B where the state is denoted by an enum.

Reported-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Tested-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:22 -05:00
Julia Lawall
6083096d96 soc: qcom: smd: delete unneeded of_node_put
Device node iterators perform an of_node_put on each iteration, so putting
an of_node_put before a continue results in a double put.

A simplified version of the semantic match that finds this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
iterator i;
@@

 i(..., child, ...) {
   ... when != of_node_get(child)
*  of_node_put(child);
   ...
*  continue;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:22 -05:00
Bjorn Andersson
ea4683e0b6 soc: qcom: smd: Correct SMEM items for upper channels
Update the SMEM items for the second set of SMD channels, as these where
incorrect.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:22 -05:00
Bjorn Andersson
a208ca98ff soc: qcom: smd: Reject send of too big packets
Attempting to find room for a packet that's bigger than the fifo will
never succeed and the calling process will be sleeping forever in the
loop, waiting for enough room. So fail early instead.

Reported-by: Courtney Cavin <courtney.cavin@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:21 -05:00
Stephen Boyd
24f60e3776 soc: qcom: smd: Handle big endian CPUs
The smd structures are always in little endian, but the smd
driver is not capable of being used on big endian CPUs. Annotate
the little endian data members and update the code to do the
proper byte swapping.

Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:21 -05:00
Stephen Boyd
30b7ea5eda soc: qcom: smd_rpm: Handle big endian CPUs
The smd rpm structures are always in little endian, but this
driver is not capable of being used on big endian CPUs. Annotate
the little endian data members and update the code to do the
proper byte swapping.

Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:21 -05:00
Stephen Boyd
50e1b29b44 soc: qcom: smd: Remove use of VLAIS
Usage of VLAIS prevents clang from compiling this file, and it
also opens us to the possibility of allocating a large structure
on the stack to the point that we blow past the limit of the
kernel stack. Remove the VLAIS and allocate a structure on the
heap with kmalloc so that we're safer and more clang friendly.

Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:21 -05:00
Stephen Boyd
3b781e55c6 soc: qcom: smd: Use __iowrite32_copy() instead of open-coding it
We already have a function to do this and it silences some sparse
warnings along the way.

Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:21 -05:00
Stephen Boyd
f02dc82523 soc: qcom: smd: Represent channel layout in structures
The rx and tx channel info are laid out in memory next to each
other, and there are two types of channel info structures, byte
based and word based. We have 4 pointers to these info
structures, when we really only need two to point to the
different types of structures. Encapsulate the byte based and
word based tx/rx structures in a "channel pair" structure that
describes the layout of memory and reduces the number of pointers
in the smd channel structure by two.

Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:20 -05:00
Stephen Boyd
9806884d8c soc: qcom: smem: Handle big endian CPUs
The contents of smem are always in little endian, but the smem
driver is not capable of being used on big endian CPUs. Annotate
the little endian data members and update the code to do the
proper byte swapping.

Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:20 -05:00
Stephen Boyd
1a03964dec soc: qcom: Make qcom_smem_get() return a pointer
Passing a void ** almost always requires a cast at the call site.
Instead of littering the code with casts every time this function
is called, have qcom_smem_get() return a void pointer to the
location of the smem item. This frees the caller from having to
cast the pointer.

Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:20 -05:00
Stephen Boyd
7d0c8beea6 soc: qcom: Reorder SMEM/SMD configs
When I make nconfig, having the SMEM option after the SMD option
causes the configurator to get confused when I'm enabling and
disabling these options. Let's move SMEM before SMD so there's a
clear indented dependency chain.

Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:20 -05:00
Stephen Boyd
f8c67df71b soc: qcom: smem: Avoid NULL pointer exception on remove
Don't set a pointer to NULL and then dereference it in the next
line.

Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:20 -05:00
Bjorn Andersson
1a7caca20e soc: qcom: smd: Implement id_table driver matching
Implement a id_table based driver maching mechanism for drivers that
binds to fixed channels and doesn't need any additional configuration,
e.g. IPCRTR and DIAG.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-10-14 14:51:20 -05:00
James Liao
41b3e0f067 soc: mediatek: Fix random hang up issue while kernel init
In kernel late init, it turns off all unused clocks, which
needs to access subsystem registers such as VENC and VENC_LT.

Accessing MT8173 VENC registers needs two top clocks, mm_sel and
venc_sel. Accessing VENC_LT registers needs mm_sel and venclt_sel.
So we need to keep these clocks on before accessing their registers.

This patch keeps venc_sel / venclt_sel clock on when
VENC / VENC_LT's power is on, to prevent system hang up while
accessing its registeres.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-10-14 15:34:43 +02:00
Murali Karicheri
045016902b soc: ti: qmss: make acc queue support optional in the driver
acc channels are available only if accumulator PDSP is loaded and
running in the SoC. As this requires firmware and user may not have
firmware in the file system, make the accumulator queue support
available in qmss driver optional. To use accumulator queus user needs
to add firmware to the file system and boot up kernel.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-10-13 13:49:04 -07:00
Murali Karicheri
96ee19becc soc: ti: add firmware file name as part of the driver
Currently firmware file name is included in the DTS. This is not scalable
as user has to change the DTS if they need upgrade to a new firmware.
Instead, add the firmware file name in the driver itself. As long as there
is no API change, new firmware upgrade is easy and require no driver
change. User is expected to copy the firmware image to the file system
and add a sym link to the new firmware for doing an upgrade. Driver add
a array of firmware file names to search for the available firmware blobs.
This scheme also prepare the driver for future changes to API if ever
happens. In such case it is assumed that driver needs to change to
accommodate the new firmware and new firmware file name will get added to
the array.

Also update the DT document to remove the firmware attribute and add
description about firmware in the driver documentation.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-10-13 13:49:04 -07:00
Ulf Hansson
2376692416 soc: dove: Let genpd deal with disabling of unused PM domains
Genpd tries from a late_initcall to disable unused PM domains, which makes
it unnecessary to also manage this from any earlier phase when for example
initializing a genpd.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-10-12 23:27:01 +02:00
Thierry Reding
0cc598915f soc: rockchip: Restrict to ARCH_ROCKCHIP
By definition this directory contains drivers that are specific to the
Rockchip architecture. All Kconfig options should therefore depend on
ARCH_ROCKCHIP to avoid exposing these symbols on other architectures.
For example, this options currently shows up as new when doing an
incremental build on PowerPC.

Signed-off-by: Thierry Reding <treding@nvidia.com>

[add COMPILE_TEST alternative condition]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2015-10-11 11:58:08 +02:00
Florian Fainelli
9a764234ee soc: brcmstb: Add Bus Interface Unit control setup
Broadcom STB SoCs (brcmstb) require an early setup of their Bus
Interface Unit control register, this needs to happen before SMP is
brought up because it affects how the CPU complex will be interfaced to
the memory controller.

Add support code which properly initializes the BIU registers based on
whether "brcm,write-pairing" is present in Device Tree, and take care of
saving and restoring credit register settings during system-wide
suspend/resume operations.

Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-10-09 13:42:16 -07:00
Arnd Bergmann
273395f0c2 Add the power-domain base-driver which currently contains
support for the rk3288 powerdomain layout but can be easily
 extended for the socs (including arm64) later on.
 A big thanks to Ceasar Wang for pulling through on this
 during 18 revisions.
 Also included is a fix to the pm-clock handling in the generic
 powerdomains to adapt it to the per-user clock handling we now
 do, Acked by Rafael Wysocki.
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Merge tag 'v4.4-rockchip-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers

Merge "Rockchip power-domain drivers for 4.4" from Heiko Stuebner:

Add the power-domain base-driver which currently contains
support for the rk3288 powerdomain layout but can be easily
extended for the socs (including arm64) later on.
A big thanks to Ceasar Wang for pulling through on this
during 18 revisions.
Also included is a fix to the pm-clock handling in the generic
powerdomains to adapt it to the per-user clock handling we now
do, Acked by Rafael Wysocki.

* tag 'v4.4-rockchip-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  soc: rockchip: power-domain: Add power domain driver
  dt-bindings: add document of Rockchip power domains
  PM / clk: Do not __clk_get passed in clock-references
  dt-bindings: add power-domain header for RK3288 SoCs
2015-10-09 17:08:28 +02:00
Murali Karicheri
72affdecdd soc: ti: reset irq affinity before freeing irq
When using accumulator queue for rx side for network driver, following
warning is seen when doing a reboot command from Linux console. This
is because, affinity value is not reset before calling free_irq(). This
patch fixes this.

Deconfiguring network interfaces...
 ------------[ cut here ]-----------
 WARNING: CPU: 0 PID: 2081 at kernel/irq/manage.c:1370
__free_irq+0x208/0x214
 Modules linked in:
 CPU: 0 PID: 2081 Comm: ifconfig Not tainted 4.1.5-00908-g1049e206-dirty #1
 Hardware name: Keystone
 Backtrace:
 [<c0012b98>] (dump_backtrace) from [<c0012dbc>] (show_stack+0x18/0x1c)
 r7:c005d0a8 r6:c06e2184 r5:c06e2184 r4:00000000
 [<c0012da4>] (show_stack) from [<c04e7168>] (dump_stack+0x8c/0xcc)
 [<c04e70dc>] (dump_stack) from [<c0025944>] (warn_slowpath_common+0x88/0xb8)
 r7:c005d0a8 r6:0000055a r5:00000009 r4:0000000
 [<c00258bc>] (warn_slowpath_common) from [<c0025a18>] (warn_slowpath_null+0x
24/0x2c)
 r8:0000006c r7:ee513f60 r6:ee513f00 r5:ee611010 r4:cc873a00
 (warn_slowpath_null) from [<c005d0a8>] (__free_irq+0x208/0x214)
 [<c005cea0>] (__free_irq) from [<c005d158>] (free_irq+0x54/0xac)
 r10:00000002 r9:00000000 r8:00000000 r7:ee611010
r6:0000006c r5:00000000
  r4:ee513f00 r3:00000000
  [<c005d104>] (free_irq) from [<c02a81b0>] (knav_range_setup_acc_irq+0xb0/0x1
28)
  r7:00000001 r6:0000006c r5:ee611010 r4:00000001
  [<c02a8100>] (knav_range_setup_acc_irq) from [<c02a8248>] (knav_acc_close_qu
eue+0x20/0x24)
  r8:edd1a4c8 r7:00001000 r6:eed89980 r5:ee616650 r4:edf9d990
  [<c02a8228>] (knav_acc_close_queue) from [<c02a6160>] (knav_queue_close+0xb4
/0xb8)
  [<c02a60ac>] (knav_queue_close) from [<c0336270>] (netcp_free_navigator_reso
urces+0x1d4/0x2c0)
 r5:edd1a480 r4:00000400
 [<c033609c>] (netcp_free_navigator_resources) from
 [<c033657c>] (netcp_ndo_stop+0x220/0x230)
 r10:00008914 r9:edf34400 r8:00000000 r7:edd1a5d8 r6:edd1a480 r5:00000400
 r4:edd1a000
 [<c033635c>] (netcp_ndo_stop) from [<c03d9c80> (__dev_close_many+0x90/0xd8)
 r7:00001003 r6:00001042 r5:edb0de20 r4:edd1a000
 [<c03d9bf0>] (__dev_close_many) from [<c03d9df4>] (__dev_close+0x30/0x48)
  r5:00000001 r4:edd1a000
 [<c03d9dc4>] (__dev_close) from [<c03e175c>] (__dev_change_flags+0x9c/0x14c)
 [<c03e16c0>] (__dev_change_flags) from [<c03e182c>] (dev_change_flags+0x20/0

  r9:edf34400 r8:00000000 r7:00000000 r6:00001003 r5:edd1a138 r4:edd1a000
 [<c03e180c>] (dev_change_flags) from [<c0446f94>] (devinet_ioctl+0x680/0x754

  r9:edf34400 r8:bef6af3c r7:00000000 r6:bef6ac64 r5:edf3440c r4:00000000
 [<c0446914>] (devinet_ioctl) from [<c0448760>] (inet_ioctl+0x1a8/0x1d0)
  r10:00000000 r9:edb0c000 r8:bef6ac64 r7:00000003 r6:bef6ac64 r5:bef6ac64
  r4:00008914
 [<c04485b8>] (inet_ioctl) from [<c03c72fc>] (sock_ioctl+0x1d0/0x2a8)
 [<c03c712c>] (sock_ioctl) from [<c00eb608>] (do_vfs_ioctl+0x414/0x604)
  r7:00000003 r6:ed8b60c0 r5:bef6ac64 r4:ccc88f20
 [<c00eb1f4>] (do_vfs_ioctl) from [<c00eb834>] (SyS_ioctl+0x3c/0x64)
  r9:edb0c000 r8:bef6ac64 r7:00008914 r6:ed8b60c0 r5:00000003 r4:ed8b60c0
 [<c00eb7f8>] (SyS_ioctl) from [<c000f780>] (ret_fast_syscall+0x0/0x3c)
  r9:edb0c000 r8:c000f924 r7:00000036 r6:0007e77c r5:bef6ac64 r4:0007e7d0
 ---[ end trace f565594c905af0b4 ]---

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-10-08 21:29:11 +02:00
Caesar Wang
7c696693a4 soc: rockchip: power-domain: Add power domain driver
This driver is found on RK3288 SoCs.

In order to meet high performance and low power requirements, a power
management unit is designed or saving power when RK3288 in low power
mode.
The RK3288 PMU is dedicated for managing the power of the whole chip.

PMU can work in the Low Power Mode by setting bit[0] of PMU_PWRMODE_CON
register. After setting the register, PMU would enter the Low Power mode.
In the low power mode, pmu will auto power on/off the specified power
domain, send idle req to specified power domain, shut down/up pll and
so on. All of above are configurable by setting corresponding registers.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>

[replace dsb() with dsb(sy) for arm64 buildability; sy is the default,
so no functional change; adapt to per-user clocks in genpd]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2015-10-06 09:53:28 +02:00
Eddie Huang
47e90154fa soc: mediatek: add scpsys support active_wakeup
Register gpd_dev_ops.active_wakeup function to support keep power
during suspend state. And add flag to each power domain to
decide whether keep power during suspend or not.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-09-27 15:18:33 +02:00
Henry Chen
bbe379fc7c soc: mediatek: Move the initial setting of pmic wrap interrupt before requesting irq.
The watchdog may not be initialized by the bootloader, even if the rest
of the pwrap is. Move the watchdog initialization out of pwrap_init() to
make sure the watchdog is always initialized and not only when the pwrap
is uninitialized.

Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-09-27 13:56:08 +02:00
Thomas Gleixner
bd0b9ac405 genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-16 15:47:51 +02:00
Brian Norris
d52fad2620 soc: add stubs for brcmstb SoC's
Used on BCM7xxx Set-Top Box chips (e.g., BCM7445).

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-09-14 15:44:18 -07:00
Thomas Gleixner
b838c950b3 soc: dove: Prepare irq handler for irq argument removal
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
    
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
    
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-09-14 10:30:05 +02:00
Thomas Gleixner
5230347ea7 soc: dove: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
Search and replace done with coccinelle

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-14 10:30:05 +02:00
Linus Torvalds
d71fc239b6 ARM: SoC: late fixes and dependencies
This is a collection of a few late fixes and other misc. stuff that
 had dependencies on things being merged from other trees.
 
 The bulk of the changes are for samsung/exynos SoCs for some changes
 that needed a few minor reworks so ended up a bit late.  The others
 are mainly for qcom SoCs: a couple fixes and some DTS updates.
 
 There's one conflict with drivers/cpufreq/exynos-cpufreq.c because
 it's now been completely removed, but there were some fixes that hit
 mainline in the meantime.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull late ARM SoC updates from Kevin Hilman:
 "This is a collection of a few late fixes and other misc stuff that had
  dependencies on things being merged from other trees.

  The bulk of the changes are for samsung/exynos SoCs for some changes
  that needed a few minor reworks so ended up a bit late.  The others
  are mainly for qcom SoCs: a couple fixes and some DTS updates"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
  ARM: multi_v7_defconfig: Enable PBIAS regulator
  soc: qcom: smd: Correct fBLOCKREADINTR handling
  soc: qcom: smd: Use correct remote processor ID
  soc: qcom: smem: Fix errant private access
  ARM: dts: qcom: msm8974-sony-xperia-honami: Use stdout-path
  ARM: dts: qcom: msm8960-cdp: Use stdout-path
  ARM: dts: qcom: msm8660-surf: Use stdout-path
  ARM: dts: qcom: ipq8064-ap148: Use stdout-path
  ARM: dts: qcom: apq8084-mtp: Use stdout-path
  ARM: dts: qcom: apq8084-ifc6540: Use stdout-path
  ARM: dts: qcom: apq8074-dragonboard: Use stdout-path
  ARM: dts: qcom: apq8064-ifc6410: Use stdout-path
  ARM: dts: qcom: apq8064-cm-qs600: Use stdout-path
  ARM: dts: qcom: Label serial nodes for aliasing and stdout-path
  reset: ath79: Fix missing spin_lock_init
  reset: Add (devm_)reset_control_get stub functions
  ARM: EXYNOS: switch to using generic cpufreq driver for exynos4x12
  cpufreq: exynos: Remove unselectable rule for arm-exynos-cpufreq.o
  ARM: dts: add iommu property to JPEG device for exynos4
  ARM: dts: enable SPI1 for exynos4412-odroidu3
  ...
2015-09-10 17:59:04 -07:00
Bjorn Andersson
208487a8f6 soc: qcom: smd: Correct fBLOCKREADINTR handling
fBLOCKREADINTR is masking the notification from the remote and should
hence be cleared while we're waiting the tx fifo to drain. Also change
the reset state to mask the notification, as send is the only use case
where we're interested in it.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-09-09 15:58:04 -05:00
Andy Gross
93dbed9121 soc: qcom: smd: Use correct remote processor ID
This patch fixes SMEM addressing issues when remote processors need to use
secure SMEM partitions.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
2015-09-09 15:57:09 -05:00
Andy Gross
18912806bb soc: qcom: smem: Fix errant private access
This patch corrects private partition item access.  Instead of falling back to
global for instances where we have an actual host and remote partition existing,
return the results of the private lookup.

Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-09-09 15:56:52 -05:00
Linus Torvalds
102178108e ARM: SoC driver updates for v4.3
Some releases this branch is nearly empty, others we have more stuff. It
 tends to gather drivers that need SoC modification or dependencies such
 that they have to (also) go in through our tree.
 
 For this release, we have merged in part of the reset controller tree
 (with handshake that the parts we have merged in will remain stable),
 as well as dependencies on a few clock branches.
 
 In general, new items here are:
 
 - Qualcomm driver for SMM/SMD, which is how they communicate with the
   coprocessors on (some) of their platforms
 - Memory controller work for ARM's PL172 memory controller
 - Reset drivers for various platforms
 - PMU power domain support for Marvell platforms
 - Tegra support for T132/T210 SoCs: PMC, fuse, memory controller per-SoC support
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Some releases this branch is nearly empty, others we have more stuff.
  It tends to gather drivers that need SoC modification or dependencies
  such that they have to (also) go in through our tree.

  For this release, we have merged in part of the reset controller tree
  (with handshake that the parts we have merged in will remain stable),
  as well as dependencies on a few clock branches.

  In general, new items here are:

   - Qualcomm driver for SMM/SMD, which is how they communicate with the
     coprocessors on (some) of their platforms

   - memory controller work for ARM's PL172 memory controller

   - reset drivers for various platforms

   - PMU power domain support for Marvell platforms

   - Tegra support for T132/T210 SoCs: PMC, fuse, memory controller
     per-SoC support"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (49 commits)
  ARM: tegra: cpuidle: implement cpuidle_state.enter_freeze()
  ARM: tegra: Disable cpuidle if PSCI is available
  soc/tegra: pmc: Use existing pclk reference
  soc/tegra: pmc: Remove unnecessary return statement
  soc: tegra: Remove redundant $(CONFIG_ARCH_TEGRA) in Makefile
  memory: tegra: Add Tegra210 support
  memory: tegra: Add support for a variable-size client ID bitfield
  clk: shmobile: rz: Add CPG/MSTP Clock Domain support
  clk: shmobile: rcar-gen2: Add CPG/MSTP Clock Domain support
  clk: shmobile: r8a7779: Add CPG/MSTP Clock Domain support
  clk: shmobile: r8a7778: Add CPG/MSTP Clock Domain support
  clk: shmobile: Add CPG/MSTP Clock Domain support
  ARM: dove: create a proper PMU driver for power domains, PMU IRQs and resets
  reset: reset-zynq: Adding support for Xilinx Zynq reset controller.
  docs: dts: Added documentation for Xilinx Zynq Reset Controller bindings.
  MIPS: ath79: Add the reset controller to the AR9132 dtsi
  reset: Add a driver for the reset controller on the AR71XX/AR9XXX
  devicetree: Add bindings for the ATH79 reset controller
  reset: socfpga: Update reset-socfpga to read the altr,modrst-offset property
  doc: dt: add documentation for lpc1850-rgu reset driver
  ...
2015-09-01 13:00:04 -07:00