Commit Graph

523 Commits

Author SHA1 Message Date
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
531d29b0b6 IOMMU Updates for Linux v5.10
Including:
 
 	- ARM-SMMU Updates from Will:
 
 	  - Continued SVM enablement, where page-table is shared with
 	    CPU
 
 	  - Groundwork to support integrated SMMU with Adreno GPU
 
 	  - Allow disabling of MSI-based polling on the kernel
 	    command-line
 
 	  - Minor driver fixes and cleanups (octal permissions, error
 	    messages, ...)
 
 	- Secure Nested Paging Support for AMD IOMMU. The IOMMU will
 	  fault when a device tries DMA on memory owned by a guest. This
 	  needs new fault-types as well as a rewrite of the IOMMU memory
 	  semaphore for command completions.
 
 	- Allow broken Intel IOMMUs (wrong address widths reported) to
 	  still be used for interrupt remapping.
 
 	- IOMMU UAPI updates for supporting vSVA, where the IOMMU can
 	  access address spaces of processes running in a VM.
 
 	- Support for the MT8167 IOMMU in the Mediatek IOMMU driver.
 
 	- Device-tree updates for the Renesas driver to support r8a7742.
 
 	- Several smaller fixes and cleanups all over the place.
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Merge tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - ARM-SMMU Updates from Will:

      - Continued SVM enablement, where page-table is shared with CPU

      - Groundwork to support integrated SMMU with Adreno GPU

      - Allow disabling of MSI-based polling on the kernel command-line

      - Minor driver fixes and cleanups (octal permissions, error
        messages, ...)

 - Secure Nested Paging Support for AMD IOMMU. The IOMMU will fault when
   a device tries DMA on memory owned by a guest. This needs new
   fault-types as well as a rewrite of the IOMMU memory semaphore for
   command completions.

 - Allow broken Intel IOMMUs (wrong address widths reported) to still be
   used for interrupt remapping.

 - IOMMU UAPI updates for supporting vSVA, where the IOMMU can access
   address spaces of processes running in a VM.

 - Support for the MT8167 IOMMU in the Mediatek IOMMU driver.

 - Device-tree updates for the Renesas driver to support r8a7742.

 - Several smaller fixes and cleanups all over the place.

* tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (57 commits)
  iommu/vt-d: Gracefully handle DMAR units with no supported address widths
  iommu/vt-d: Check UAPI data processed by IOMMU core
  iommu/uapi: Handle data and argsz filled by users
  iommu/uapi: Rename uapi functions
  iommu/uapi: Use named union for user data
  iommu/uapi: Add argsz for user filled data
  docs: IOMMU user API
  iommu/qcom: add missing put_device() call in qcom_iommu_of_xlate()
  iommu/arm-smmu-v3: Add SVA device feature
  iommu/arm-smmu-v3: Check for SVA features
  iommu/arm-smmu-v3: Seize private ASID
  iommu/arm-smmu-v3: Share process page tables
  iommu/arm-smmu-v3: Move definitions to a header
  iommu/io-pgtable-arm: Move some definitions to a header
  iommu/arm-smmu-v3: Ensure queue is read after updating prod pointer
  iommu/amd: Re-purpose Exclusion range registers to support SNP CWWB
  iommu/amd: Add support for RMP_PAGE_FAULT and RMP_HW_ERR
  iommu/amd: Use 4K page for completion wait write-back semaphore
  iommu/tegra-smmu: Allow to group clients in same swgroup
  iommu/tegra-smmu: Fix iova->phys translation
  ...
2020-10-14 12:08:34 -07:00
Chanwoo Choi
02bdbf7d09 PM / devfreq: event: Change prototype of devfreq_event_get_edev_by_phandle function
Previously, devfreq core support 'devfreq-events' property in order to get
the devfreq-event device by phandle. But, 'devfreq-events' property name is
not proper on devicetree binding because this name doesn't mean
the any h/w attribute.

The devfreq-event core hand over the rights to decide the property name
for getting the devfreq-event device on devicetree. Each devfreq-event driver
will decide the property name on devicetree binding and then pass
the their own property name to devfreq_event_get_edev_by_phandle function.

And change the prototype of devfreq_event_get_edev_count function
because of used deprecated 'devfreq-events' property.

Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-29 17:50:10 +09:00
Qinglang Miao
94ca857336 memory: emif: Convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Along with this change, we get additionally:
        .owner          = THIS_MODULE,
        .llseek         = seq_lseek,

1. The llseek method is used to change the current read/write position
in a file which can be ignored if you don't use it.
2. The owner is not even a method. Instead, it is a pointer to the
module that “owns” this structure; it is used by the kernel to maintain
the module's usage count which can be ignored.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200917125113.103550-1-miaoqinglang@huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-09-20 18:59:19 +02:00
Qinglang Miao
67a344e889 memory: tegra: Convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200917125114.103598-1-miaoqinglang@huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-09-20 18:57:49 +02:00
Nicolin Chen
675d12acb6 memory: tegra: Correct num_tlb_lines for tegra210
According to Tegra210 TRM, the default value of TLB_ACTIVE_LINES
field of register MC_SMMU_TLB_CONFIG_0 is 0x30. So num_tlb_lines
should be 48 (0x30) rather than 32 (0x20).

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200917113155.13438-3-nicoleotsuka@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-09-18 11:07:07 +02:00
Krzysztof Kozlowski
26cb1d2fff memory: omap-gpmc: Fix compile test on SPARC
SPARC comes without CONFIG_OF_ADDRESS thus compile testing fails on
linking:

  /usr/bin/sparc64-linux-gnu-ld: drivers/memory/omap-gpmc.o: in function `gpmc_probe_generic_child':
  omap-gpmc.c:(.text.unlikely+0x14ec): undefined reference to `of_platform_device_create'

Fixes: ea0c0ad6b6 ("memory: Enable compile testing for most of the drivers")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200911143251.399-1-krzk@kernel.org
2020-09-16 19:42:02 +02:00
Fabien Parent
a8529f3b1c memory: mtk-smi: add support for MT8167
Add support for the SMI IP on MT8167

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Link: https://lore.kernel.org/r/20200906180938.1117526-2-fparent@baylibre.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-09-09 21:34:17 +02:00
Ye Bin
8014c4781b memory: tegra: Delete duplicated argument to '|' in function tegra210_emc_r21021_periodic_compensation
In function tegra210_emc_r21021_periodic_compensation when calculate
emc_cfg EMC_CFG_DRAM_CLKSTOP_PD is duplicated.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20200903021542.315195-1-yebin10@huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-09-09 09:00:22 +02:00
Krzysztof Kozlowski
dd85345abc memory: fsl-corenet-cf: Fix handling of platform_get_irq() error
platform_get_irq() returns -ERRNO on error.  In such case comparison
to 0 would pass the check.

Fixes: 54afbec0d5 ("memory: Freescale CoreNet Coherency Fabric error reporting driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200827073315.29351-1-krzk@kernel.org
2020-09-02 17:32:02 +02:00
YueHaibing
6cf238d4e2 memory: omap-gpmc: Fix -Wunused-function warnings
If CONFIG_OF is not set, make W=1 warns:

  drivers/memory/omap-gpmc.c:987:12: warning: ‘gpmc_cs_remap’ defined but not used [-Wunused-function]
  drivers/memory/omap-gpmc.c:926:20: warning: ‘gpmc_cs_get_name’ defined but not used [-Wunused-function]
  drivers/memory/omap-gpmc.c:919:13: warning: ‘gpmc_cs_set_name’ defined but not used [-Wunused-function]

Move them to #ifdef CONFIG_OF block to fix this.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200901112832.3084-1-yuehaibing%40huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-09-02 17:29:11 +02:00
Thierry Reding
ea90f66f2a memory: tegra: Remove GPU from DRM IOMMU group
Commit 63a613fdb1 ("memory: tegra: Add gr2d and gr3d to DRM IOMMU
group") added the GPU to the DRM IOMMU group, which doesn't make any
sense. This causes problems when Nouveau tries to attach to the SMMU
and causes it to fall back to using the DMA API.

Remove the GPU from the DRM groups to restore the old behaviour. The
GPU should always have its own IOMMU domain to make sure it can map
buffers into contiguous chunks (for big page support) without getting
in the way of mappings from the DRM group.

Cc: <stable@vger.kernel.org>
Fixes: 63a613fdb1 ("memory: tegra: Add gr2d and gr3d to DRM IOMMU group")
Reported-by: Matias Zuniga <matias.nicolas.zc@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200901153248.1831263-1-thierry.reding@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-09-02 17:23:59 +02:00
Krzysztof Kozlowski
25f2f5e591 memory: tegra186-emc: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and the error value gets printed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200828153747.22358-2-krzk@kernel.org
2020-09-02 17:22:56 +02:00
Krzysztof Kozlowski
74ca0d837b memory: brcmstb_dpfe: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and the error value gets printed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Markus Mayer <mmayer@broadcom.com>
Link: https://lore.kernel.org/r/20200828153747.22358-1-krzk@kernel.org
2020-09-02 17:22:31 +02:00
Krzysztof Kozlowski
4c2af5ddf8 memory: samsung: exynos5422-dmc: add missing and fix kerneldoc
Add missing kerneldoc to struct exynos5_dmc and correct the existing
kerneldoc in other places to fix W=1 warnings like:

    drivers/memory/samsung/exynos5422-dmc.c:107: warning: Function parameter or member 'freq_hz' not described in 'dmc_opp_table'
    drivers/memory/samsung/exynos5422-dmc.c:154: warning: Function parameter or member 'dev' not described in 'exynos5_dmc'
    drivers/memory/samsung/exynos5422-dmc.c:357: warning: Excess function parameter 'param' description in 'exynos5_set_bypass_dram_timings'
    drivers/memory/samsung/exynos5422-dmc.c:630: warning: Function parameter or member 'flags' not described in 'exynos5_dmc_get_volt_freq'
    drivers/memory/samsung/exynos5422-dmc.c:962: warning: cannot understand function prototype: 'struct devfreq_dev_profile exynos5_dmc_df_profile = '
    drivers/memory/samsung/exynos5422-dmc.c:1011: warning: Function parameter or member 'reg_timing_row' not described in 'create_timings_aligned'
    drivers/memory/samsung/exynos5422-dmc.c:1011: warning: Excess function parameter 'idx' description in 'create_timings_aligned'
    drivers/memory/samsung/exynos5422-dmc.c:1345: warning: Excess function parameter 'set' description in 'exynos5_dmc_set_pause_on_switching'

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20200822163218.21857-3-krzk@kernel.org
2020-09-01 20:37:48 +02:00
Krzysztof Kozlowski
1415fa0dca memory: samsung: exynos5422-dmc: remove unused exynos5_dmc members
The struct exynos5_dmc members bypass_rate, mx_mspll_ccore_phy,
mout_mx_mspll_ccore_phy and opp_bypass are not actually used.

Apparently there was a plan to store the OPP for the bypass mode in
opp_bypass member, but driver fails to do it and instead always sets
target voltage during bypass mode.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200822163218.21857-2-krzk@kernel.org
2020-09-01 20:36:25 +02:00
Krzysztof Kozlowski
bb0ebc7d39 memory: samsung: exynos5422-dmc: rename timing register fields variables
The driver has file-scope arrays defining fields of timing registers
(e.g. struct timing_reg timing_row) and actual values for these
registers per each OPP in state container (struct
exynos5_dmc.timing_row).  The meanings of these are different so use
different names to avoid confusion.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20200822163218.21857-1-krzk@kernel.org
2020-09-01 20:35:27 +02:00
Dan Carpenter
fd22781648 memory: emif: Remove bogus debugfs error handling
Callers are generally not supposed to check the return values from
debugfs functions.  Debugfs functions never return NULL so this error
handling will never trigger.  (Historically debugfs functions used to
return a mix of NULL and error pointers but it was eventually deemed too
complicated for something which wasn't intended to be used in normal
situations).

Delete all the error handling.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Link: https://lore.kernel.org/r/20200826113759.GF393664@mwanda
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-27 21:36:02 +02:00
YueHaibing
13d029ee51 memory: omap-gpmc: Fix build error without CONFIG_OF
If CONFIG_OF is n, gcc fails:

drivers/memory/omap-gpmc.o: In function `gpmc_omap_onenand_set_timings':
    omap-gpmc.c:(.text+0x2a88): undefined reference to `gpmc_read_settings_dt'

Add gpmc_read_settings_dt() helper function, which zero the gpmc_settings
so the caller doesn't proceed with random/invalid settings.

Fixes: a758f50f10 ("mtd: onenand: omap2: Configure driver from DT")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200827125316.20780-1-yuehaibing@huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-27 21:30:48 +02:00
Dan Carpenter
4c54228ac8 memory: omap-gpmc: Fix a couple off by ones
These comparisons should be >= instead of > to prevent reading one
element beyond the end of the gpmc_cs[] array.

Fixes: cdd6928c58 ("ARM: OMAP2+: Add device-tree support for NOR flash")
Fixes: f37e4580c4 ("ARM: OMAP2: Dynamic allocator for GPMC memory space")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200825104707.GB278587@mwanda
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-26 20:22:12 +02:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Markus Mayer
f42ae4bbf9 memory: brcmstb_dpfe: fix array index out of bounds
We would overrun the error_text array if we hit a TIMEOUT condition,
because we were using the error code "ETIMEDOUT" (which is 110) as an
array index.

We fix the problem by correcting the array index and by providing a
function to retrieve error messages rather than accessing the array
directly. The function includes a bounds check that prevents the array
from being overrun.

Link: https://lore.kernel.org/linux-arm-kernel/38d00022-730c-948a-917c-d86382df8cb9@canonical.com/
Link: https://lore.kernel.org/r/20200822205000.15841-1-mmayer@broadcom.com
Fixes: 2f330caff5 ("memory: brcmstb: Add driver for DPFE")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-22 22:53:28 +02:00
Alex Dewar
4da1edcf8f memory: brcmstb_dpfe: Fix memory leak
In brcmstb_dpfe_download_firmware(), memory is allocated to variable fw by
firmware_request_nowarn(), but never released. Fix up to release fw on
all return paths.

Cc: <stable@vger.kernel.org>
Fixes: 2f330caff5 ("memory: brcmstb: Add driver for DPFE")
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Acked-by: Markus Mayer <mmayer@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20200820172118.781324-1-alex.dewar90@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20 20:52:59 +02:00
Nicolin Chen
296050a04c memory: tegra: Correct shift value of apew
According to Tegra X1 (Tegra210) TRM, the APEW field is between
[23:16] so the shift bit for apew should be 16 accordingly.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/20200818095121.13645-1-nicoleotsuka@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20 17:24:20 +02:00
Krzysztof Kozlowski
ea0c0ad6b6 memory: Enable compile testing for most of the drivers
Most of the memory controller drivers do not depend on architecture
specific code so can be compile tested to increase build coverage.

When compile tested, do not enable them by default.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-7-krzk@kernel.org
2020-08-17 21:15:32 +02:00
Krzysztof Kozlowski
904ffa81b7 memory: brcmstb_dpfe: add separate entry for compile test
Add separate entry for Broadcom STB DPFE driver, enabled by default on
ARCH_BRCMSTB.  This allows compile testing.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2020-08-17 20:44:00 +02:00
Krzysztof Kozlowski
4a661364e6 memory: tegra: tegra210-emc: fix indentation
Use tabs instead of spaces for indentation.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-25-krzk@kernel.org
2020-08-17 20:43:54 +02:00
Krzysztof Kozlowski
3cd7040762 memory: renesas-rpc-if: simplify with PTR_ERR_OR_ZERO
Use PTR_ERR_OR_ZERO to make the code a little bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-17-krzk@kernel.org
2020-08-17 20:43:50 +02:00
Krzysztof Kozlowski
dc1a9283f1 memory: omap-gpmc: consistently use !res for NULL checks
The driver already uses 'if (!res)' pattern in the probe function so be
consistent.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724182328.3348-11-krzk@kernel.org
2020-08-17 20:43:46 +02:00
Krzysztof Kozlowski
07b6cc4540 memory: omap-gpmc: use WARN() instead of BUG() on wrong free
Since driver tracks reserved memory, freeing a non-reserved GPMC should
not be fatal and crash the system.  Printing a warning is friendlier.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724182328.3348-9-krzk@kernel.org
2020-08-17 20:43:41 +02:00
Krzysztof Kozlowski
1724f1b696 memory: omap-gpmc: remove GPMC_SET_ONE_CD_MAX macro for safety
The GPMC_SET_ONE_CD_MAX macro uses return statement and variable 'cs'
coming from called scope.  This is not a good practice.  Also
checkpatch complained:

    WARNING: Macros with flow control statements should be avoided
    ERROR: Macros starting with if should be enclosed by a do - while
        loop to avoid possible if/else logic defects

Since GPMC_SET_ONE_CD_MAX macro just calls one function, it can be open
coded.  The difference with original code is that function will exit on
error not after every register set, but after a group of sets.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-22-krzk@kernel.org
2020-08-17 20:43:38 +02:00
Krzysztof Kozlowski
d25112aa34 memory: omap-gpmc: return meaningful error codes in gpmc_cs_set_timings()
The callers of gpmc_cs_set_timings() expect to receive -ERRNO on errors
and they pass further what they have received.

However gpmc_cs_set_timings() was returning -1 (equal to -EPERM) which
does not make sense in this context.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-21-krzk@kernel.org
2020-08-17 20:43:35 +02:00
Krzysztof Kozlowski
ddbfbcba49 memory: omap-gpmc: remove unused file-scope phys_base and mem_size
The file-scope variables phys_base and mem_size are assigned in
gpmc_probe() but never read.

This fixes build error when compile testing on x86_64 architecture:

    drivers/memory/omap-gpmc.c:246:24: error: conflicting types for ‘phys_base’
     static resource_size_t phys_base, mem_size;
    In file included from arch/x86/include/asm/page.h:12:0,
                     from arch/x86/include/asm/thread_info.h:12,
                     from include/linux/thread_info.h:38,
                     from arch/x86/include/asm/preempt.h:7,
                     from include/linux/preempt.h:78,
                     from include/linux/spinlock.h:51,
                     from include/linux/irq.h:14,
                     from drivers/memory/omap-gpmc.c:12:
    arch/x86/include/asm/page_64.h:12:22: note: previous declaration of ‘phys_base’ was here
     extern unsigned long phys_base;

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-3-krzk@kernel.org
2020-08-17 20:43:32 +02:00
Krzysztof Kozlowski
8e9ffd5ed3 memory: omap-gpmc: remove unneeded asm/mach-types.h inclusion
The driver does not use macros from asm/mach-types.h (neither MACH_TYPE
nor machine_is_xxx()).  Removal of this include allows compile testing
on non-ARM architectures which lack this header.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-2-krzk@kernel.org
2020-08-17 20:43:29 +02:00
Krzysztof Kozlowski
911c94dac9 memory: samsung: exynos5422-dmc: Document mutex scope
Document scope of the mutex used by driver.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20200724180857.22119-1-krzk@kernel.org
2020-08-17 14:37:59 +02:00
Lukasz Luba
7f7d9e1e02 memory: samsung: exynos5422-dmc: Additional locking for 'curr_rate'
The 'curr_rate' is protected by local 'dmc->lock' in various places, but
not in a function exynos5_dmc_get_status(). The lock protects frequency
(and voltage) change process and the corresponding value stored in
'curr_rate'. Add the locking mechanism to protect the 'curr_rate' reading
also in the exynos5_dmc_get_status().

Suggested-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20200811101727.3976-1-lukasz.luba@arm.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-17 13:54:14 +02:00
Linus Torvalds
952ace797c IOMMU Updates for Linux v5.9
Including:
 
 	- Removal of the dev->archdata.iommu (or similar) pointers from
 	  most architectures. Only Sparc is left, but this is private to
 	  Sparc as their drivers don't use the IOMMU-API.
 
 	- ARM-SMMU Updates from Will Deacon:
 
 	  -  Support for SMMU-500 implementation in Marvell
 	     Armada-AP806 SoC
 
 	  - Support for SMMU-500 implementation in NVIDIA Tegra194 SoC
 
 	  - DT compatible string updates
 
 	  - Remove unused IOMMU_SYS_CACHE_ONLY flag
 
 	  - Move ARM-SMMU drivers into their own subdirectory
 
 	- Intel VT-d Updates from Lu Baolu:
 
 	  - Misc tweaks and fixes for vSVA
 
 	  - Report/response page request events
 
 	  - Cleanups
 
 	- Move the Kconfig and Makefile bits for the AMD and Intel
 	  drivers into their respective subdirectory.
 
 	- MT6779 IOMMU Support
 
 	- Support for new chipsets in the Renesas IOMMU driver
 
 	- Other misc cleanups and fixes (e.g. to improve compile test
 	  coverage)
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Merge tag 'iommu-updates-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - Remove of the dev->archdata.iommu (or similar) pointers from most
   architectures. Only Sparc is left, but this is private to Sparc as
   their drivers don't use the IOMMU-API.

 - ARM-SMMU updates from Will Deacon:

     - Support for SMMU-500 implementation in Marvell Armada-AP806 SoC

     - Support for SMMU-500 implementation in NVIDIA Tegra194 SoC

     - DT compatible string updates

     - Remove unused IOMMU_SYS_CACHE_ONLY flag

     - Move ARM-SMMU drivers into their own subdirectory

 - Intel VT-d updates from Lu Baolu:

     - Misc tweaks and fixes for vSVA

     - Report/response page request events

     - Cleanups

 - Move the Kconfig and Makefile bits for the AMD and Intel drivers into
   their respective subdirectory.

 - MT6779 IOMMU Support

 - Support for new chipsets in the Renesas IOMMU driver

 - Other misc cleanups and fixes (e.g. to improve compile test coverage)

* tag 'iommu-updates-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (77 commits)
  iommu/amd: Move Kconfig and Makefile bits down into amd directory
  iommu/vt-d: Move Kconfig and Makefile bits down into intel directory
  iommu/arm-smmu: Move Arm SMMU drivers into their own subdirectory
  iommu/vt-d: Skip TE disabling on quirky gfx dedicated iommu
  iommu: Add gfp parameter to io_pgtable_ops->map()
  iommu: Mark __iommu_map_sg() as static
  iommu/vt-d: Rename intel-pasid.h to pasid.h
  iommu/vt-d: Add page response ops support
  iommu/vt-d: Report page request faults for guest SVA
  iommu/vt-d: Add a helper to get svm and sdev for pasid
  iommu/vt-d: Refactor device_to_iommu() helper
  iommu/vt-d: Disable multiple GPASID-dev bind
  iommu/vt-d: Warn on out-of-range invalidation address
  iommu/vt-d: Fix devTLB flush for vSVA
  iommu/vt-d: Handle non-page aligned address
  iommu/vt-d: Fix PASID devTLB invalidation
  iommu/vt-d: Remove global page support in devTLB flush
  iommu/vt-d: Enforce PASID devTLB field mask
  iommu: Make some functions static
  iommu/amd: Remove double zero check
  ...
2020-08-11 14:13:24 -07:00
Linus Torvalds
dec1fbbc1d MTD core changes:
* Spelling
 * http to https updates
 
 NAND core changes:
 * Drop useless 'depends on' in Kconfig
 * Add an extra level in the Kconfig hierarchy
 * Trivial spellings
 * Dynamic allocation of the interface configurations
 * Dropping the default ONFI timing mode
 * Various cleanup (types, structures, naming, comments)
 * Hide the chip->data_interface indirection
 * Add the generic rb-gpios property
 * Add the ->choose_interface_config() hook
 * Introduce nand_choose_best_sdr_timings()
 * Use default values for tPROG_max and tBERS_max
 * Avoid redefining tR_max and tCCS_min
 * Add a helper to find the closest ONFI mode
 * bcm63xx MTD parsers: simplify CFE detection
 
 Raw NAND controller drivers changes:
 * fsl-upm: Deprecation of specific DT properties
 * fsl_upm: Driver rework and cleanup in favor of ->exec_op()
 * Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
 * brcmnand: ECC error handling on EDU transfers
 * brcmnand: Don't default to EDU transfers
 * qcom: Set BAM mode only if not set already
 * qcom: Avoid write to unavailable register
 * gpio: Driver rework in favor of ->exec_op()
 * tango: ->exec_op() conversion
 * mtk: ->exec_op() conversion
 
 Raw NAND chip drivers changes:
 * toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4
 * toshiba: Implement ->choose_interface_config() for TC58NVG0S3E
 * toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00
 * hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC
 
 SPI NOR core changes:
 * Disable Quad Mode in spi_nor_restore().
 * Don't abort BFPT parsing when QER reserved value is used.
 * Add support/update capabilities for few flashes.
 * Drop s70fl01gs flash: it does not support RDSR(05h) which
   is critical for erase/write.
 * Merge the SPIMEM DTR bits in spi-nor/next to avoid conflicts
   during the release cycle.
 
 SPI NOR controller drivers changes:
 * Move the cadence-quadspi driver to spi-mem. The series was
   taken through the SPI tree. Merge it also in spi-nor/next
   to avoid conflicts during the release cycle.
 * intel-spi:
    - Add new PCI IDs.
    - Ignore the Write Disable command, the controller doesn't
      support it.
    - Fix performance regression.
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Merge tag 'mtd/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull mtd updates from Miquel Raynal:
 "MTD core changes:
   - Spelling
   - http to https updates

  NAND core changes:
   - Drop useless 'depends on' in Kconfig
   - Add an extra level in the Kconfig hierarchy
   - Trivial spellings
   - Dynamic allocation of the interface configurations
   - Dropping the default ONFI timing mode
   - Various cleanup (types, structures, naming, comments)
   - Hide the chip->data_interface indirection
   - Add the generic rb-gpios property
   - Add the ->choose_interface_config() hook
   - Introduce nand_choose_best_sdr_timings()
   - Use default values for tPROG_max and tBERS_max
   - Avoid redefining tR_max and tCCS_min
   - Add a helper to find the closest ONFI mode
   - bcm63xx MTD parsers: simplify CFE detection

  Raw NAND controller drivers changes:
   - fsl-upm: Deprecation of specific DT properties
   - fsl_upm: Driver rework and cleanup in favor of ->exec_op()
   - Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
   - brcmnand: ECC error handling on EDU transfers
   - brcmnand: Don't default to EDU transfers
   - qcom: Set BAM mode only if not set already
   - qcom: Avoid write to unavailable register
   - gpio: Driver rework in favor of ->exec_op()
   - tango: ->exec_op() conversion
   - mtk: ->exec_op() conversion

  Raw NAND chip drivers changes:
   - toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4,
     TC58NVG0S3E, and TC58TEG5DCLTA00
   - hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC

  SPI NOR core changes:
   - Disable Quad Mode in spi_nor_restore().
   - Don't abort BFPT parsing when QER reserved value is used.
   - Add support/update capabilities for few flashes.
   - Drop s70fl01gs flash: it does not support RDSR(05h) which is
     critical for erase/write.
   - Merge the SPIMEM DTR bits in spi-nor/next to avoid conflicts during
     the release cycle.

  SPI NOR controller drivers changes:
   - Move the cadence-quadspi driver to spi-mem. The series was taken
     through the SPI tree. Merge it also in spi-nor/next to avoid
     conflicts during the release cycle.
   - intel-spi:
      - Add new PCI IDs.
      - Ignore the Write Disable command, the controller doesn't support
        it.
      - Fix performance regression"

* tag 'mtd/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (79 commits)
  MTD: pfow.h: drop a duplicated word
  MTD: mtd-abi.h: drop a duplicated word
  mtd: rawnand: omap_elm: Replace HTTP links with HTTPS ones
  mtd: Replace HTTP links with HTTPS ones
  mtd: hyperbus: Replace HTTP links with HTTPS ones
  mtd: revert "spi-nor: intel: provide a range for poll_timout"
  mtd: spi-nor: update read capabilities for w25q64 and s25fl064k
  mtd: spi-nor: micron: Add SPI_NOR_DUAL_READ flag on mt25qu02g
  mtd: spi-nor: macronix: Add support for mx66u2g45g
  mtd: spi-nor: intel-spi: Simulate WRDI command
  mtd: spi-nor: Disable the flash quad mode in spi_nor_restore()
  mtd: spi-nor: Add capability to disable flash quad mode
  mtd: spi-nor: spansion: Remove s70fl01gs from flash_info
  mtd: spi-nor: sfdp: do not make invalid quad enable fatal
  dt-bindings: mtd: fsl-upm-nand: Deprecate chip-delay and fsl, upm-wait-flags
  mtd: rawnand: stm32_fmc2: get resources from parent node
  mtd: rawnand: stm32_fmc2: use regmap APIs
  memory: stm32-fmc2-ebi: add STM32 FMC2 EBI controller driver
  dt-bindings: memory-controller: add STM32 FMC2 EBI controller documentation
  dt-bindings: mtd: update STM32 FMC2 NAND controller documentation
  ...
2020-08-09 12:38:51 -07:00
Linus Torvalds
b62e419707 MIPS upates for v5.9
- improvements for Loongson64
 - extended ingenic support
 - removal of not maintained paravirt system type
 - cleanups and fixes
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Merge tag 'mips_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS upates from Thomas Bogendoerfer:

 - improvements for Loongson64

 - extended ingenic support

 - removal of not maintained paravirt system type

 - cleanups and fixes

* tag 'mips_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (81 commits)
  MIPS: SGI-IP27: always enable NUMA in Kconfig
  MAINTAINERS: Update KVM/MIPS maintainers
  MIPS: Update default config file for Loongson-3
  MIPS: KVM: Add kvm guest support for Loongson-3
  dt-bindings: mips: Document Loongson kvm guest board
  MIPS: handle Loongson-specific GSExc exception
  MIPS: add definitions for Loongson-specific CP0.Diag1 register
  MIPS: only register FTLBPar exception handler for supported models
  MIPS: ingenic: Hardcode mem size for qi,lb60 board
  MIPS: DTS: ingenic/qi,lb60: Add model and memory node
  MIPS: ingenic: Use fw_passed_dtb even if CONFIG_BUILTIN_DTB
  MIPS: head.S: Init fw_passed_dtb to builtin DTB
  of: address: Fix parser address/size cells initialization
  of_address: Guard of_bus_pci_get_flags with CONFIG_PCI
  MIPS: DTS: Fix number of msi vectors for Loongson64G
  MIPS: Loongson64: Add ISA node for LS7A PCH
  MIPS: Loongson64: DTS: Fix ISA and PCI I/O ranges for RS780E PCH
  MIPS: Loongson64: Enlarge IO_SPACE_LIMIT
  MIPS: Loongson64: Process ISA Node in DeviceTree
  of_address: Add bus type match for pci ranges parser
  ...
2020-08-06 10:54:07 -07:00
Linus Torvalds
0408497800 Power management updates for 5.9-rc1
- Make the Energy Model cover non-CPU devices (Lukasz Luba).
 
  - Add Ice Lake server idle states table to the intel_idle driver
    and eliminate a redundant static variable from it (Chen Yu,
    Rafael Wysocki).
 
  - Eliminate all W=1 build warnings from cpufreq (Lee Jones).
 
  - Add support for Sapphire Rapids and for Power Limit 4 to the
    Intel RAPL power capping driver (Sumeet Pawnikar, Zhang Rui).
 
  - Fix function name in kerneldoc comments in the idle_inject power
    capping driver (Yangtao Li).
 
  - Fix locking issues with cpufreq governors and drop a redundant
    "weak" function definition from cpufreq (Viresh Kumar).
 
  - Rearrange cpufreq to register non-modular governors at the
    core_initcall level and allow the default cpufreq governor to
    be specified in the kernel command line (Quentin Perret).
 
  - Extend, fix and clean up the intel_pstate driver (Srinivas
    Pandruvada, Rafael Wysocki):
 
    * Add a new sysfs attribute for disabling/enabling CPU
      energy-efficiency optimizations in the processor.
 
    * Make the driver avoid enabling HWP if EPP is not supported.
 
    * Allow the driver to handle numeric EPP values in the sysfs
      interface and fix the setting of EPP via sysfs in the active
      mode.
 
    * Eliminate a static checker warning and clean up a kerneldoc
      comment.
 
  - Clean up some variable declarations in the powernv cpufreq
    driver (Wei Yongjun).
 
  - Fix up the ->enter_s2idle callback definition to cover the case
    when it points to the same function as ->idle correctly (Neal
    Liu).
 
  - Rearrange and clean up the PSCI cpuidle driver (Ulf Hansson).
 
  - Make the PM core emit "changed" uevent when adding/removing the
    "wakeup" sysfs attribute of devices (Abhishek Pandit-Subedi).
 
  - Add a helper macro for declaring PM callbacks and use it in the
    MMC jz4740 driver (Paul Cercueil).
 
  - Fix white space in some places in the hibernate code and make the
    system-wide PM code use "const char *" where appropriate (Xiang
    Chen, Alexey Dobriyan).
 
  - Add one more "unsafe" helper macro to the freezer to cover the NFS
    use case (He Zhe).
 
  - Change the language in the generic PM domains framework to use
    parent/child terminology and clean up a typo and some comment
    fromatting in that code (Kees Cook, Geert Uytterhoeven).
 
  - Update the operating performance points OPP framework (Lukasz
    Luba, Andrew-sh.Cheng, Valdis Kletnieks):
 
    * Refactor dev_pm_opp_of_register_em() and update related drivers.
 
    * Add a missing function export.
 
    * Allow disabled OPPs in dev_pm_opp_get_freq().
 
  - Update devfreq core and drivers (Chanwoo Choi, Lukasz Luba, Enric
    Balletbo i Serra, Dmitry Osipenko, Kieran Bingham, Marc Zyngier):
 
    * Add support for delayed timers to the devfreq core and make the
      Samsung exynos5422-dmc driver use it.
 
    * Unify sysfs interface to use "df-" as a prefix in instance names
      consistently.
 
    * Fix devfreq_summary debugfs node indentation.
 
    * Add the rockchip,pmu phandle to the rk3399_dmc driver DT
      bindings.
 
    * List Dmitry Osipenko as the Tegra devfreq driver maintainer.
 
    * Fix typos in the core devfreq code.
 
  - Update the pm-graph utility to version 5.7 including a number of
    fixes related to suspend-to-idle (Todd Brandt).
 
  - Fix coccicheck errors and warnings in the cpupower utility (Shuah
    Khan).
 
  - Replace HTTP links with HTTPs ones in multiple places (Alexander
    A. Klimov).
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Merge tag 'pm-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "The most significant change here is the extension of the Energy Model
  to cover non-CPU devices (as well as CPUs) from Lukasz Luba.

  There is also some new hardware support (Ice Lake server idle states
  table for intel_idle, Sapphire Rapids and Power Limit 4 support in the
  RAPL driver), some new functionality in the existing drivers (eg. a
  new switch to disable/enable CPU energy-efficiency optimizations in
  intel_pstate, delayed timers in devfreq), some assorted fixes (cpufreq
  core, intel_pstate, intel_idle) and cleanups (eg. cpuidle-psci,
  devfreq), including the elimination of W=1 build warnings from cpufreq
  done by Lee Jones.

  Specifics:

   - Make the Energy Model cover non-CPU devices (Lukasz Luba).

   - Add Ice Lake server idle states table to the intel_idle driver and
     eliminate a redundant static variable from it (Chen Yu, Rafael
     Wysocki).

   - Eliminate all W=1 build warnings from cpufreq (Lee Jones).

   - Add support for Sapphire Rapids and for Power Limit 4 to the Intel
     RAPL power capping driver (Sumeet Pawnikar, Zhang Rui).

   - Fix function name in kerneldoc comments in the idle_inject power
     capping driver (Yangtao Li).

   - Fix locking issues with cpufreq governors and drop a redundant
     "weak" function definition from cpufreq (Viresh Kumar).

   - Rearrange cpufreq to register non-modular governors at the
     core_initcall level and allow the default cpufreq governor to be
     specified in the kernel command line (Quentin Perret).

   - Extend, fix and clean up the intel_pstate driver (Srinivas
     Pandruvada, Rafael Wysocki):

       * Add a new sysfs attribute for disabling/enabling CPU
         energy-efficiency optimizations in the processor.

       * Make the driver avoid enabling HWP if EPP is not supported.

       * Allow the driver to handle numeric EPP values in the sysfs
         interface and fix the setting of EPP via sysfs in the active
         mode.

       * Eliminate a static checker warning and clean up a kerneldoc
         comment.

   - Clean up some variable declarations in the powernv cpufreq driver
     (Wei Yongjun).

   - Fix up the ->enter_s2idle callback definition to cover the case
     when it points to the same function as ->idle correctly (Neal Liu).

   - Rearrange and clean up the PSCI cpuidle driver (Ulf Hansson).

   - Make the PM core emit "changed" uevent when adding/removing the
     "wakeup" sysfs attribute of devices (Abhishek Pandit-Subedi).

   - Add a helper macro for declaring PM callbacks and use it in the MMC
     jz4740 driver (Paul Cercueil).

   - Fix white space in some places in the hibernate code and make the
     system-wide PM code use "const char *" where appropriate (Xiang
     Chen, Alexey Dobriyan).

   - Add one more "unsafe" helper macro to the freezer to cover the NFS
     use case (He Zhe).

   - Change the language in the generic PM domains framework to use
     parent/child terminology and clean up a typo and some comment
     fromatting in that code (Kees Cook, Geert Uytterhoeven).

   - Update the operating performance points OPP framework (Lukasz Luba,
     Andrew-sh.Cheng, Valdis Kletnieks):

       * Refactor dev_pm_opp_of_register_em() and update related drivers.

       * Add a missing function export.

       * Allow disabled OPPs in dev_pm_opp_get_freq().

   - Update devfreq core and drivers (Chanwoo Choi, Lukasz Luba, Enric
     Balletbo i Serra, Dmitry Osipenko, Kieran Bingham, Marc Zyngier):

       * Add support for delayed timers to the devfreq core and make the
         Samsung exynos5422-dmc driver use it.

       * Unify sysfs interface to use "df-" as a prefix in instance
         names consistently.

       * Fix devfreq_summary debugfs node indentation.

       * Add the rockchip,pmu phandle to the rk3399_dmc driver DT
         bindings.

       * List Dmitry Osipenko as the Tegra devfreq driver maintainer.

       * Fix typos in the core devfreq code.

   - Update the pm-graph utility to version 5.7 including a number of
     fixes related to suspend-to-idle (Todd Brandt).

   - Fix coccicheck errors and warnings in the cpupower utility (Shuah
     Khan).

   - Replace HTTP links with HTTPs ones in multiple places (Alexander A.
     Klimov)"

* tag 'pm-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (71 commits)
  cpuidle: ACPI: fix 'return' with no value build warning
  cpufreq: intel_pstate: Fix EPP setting via sysfs in active mode
  cpufreq: intel_pstate: Rearrange the storing of new EPP values
  intel_idle: Customize IceLake server support
  PM / devfreq: Fix the wrong end with semicolon
  PM / devfreq: Fix indentaion of devfreq_summary debugfs node
  PM / devfreq: Clean up the devfreq instance name in sysfs attr
  memory: samsung: exynos5422-dmc: Add module param to control IRQ mode
  memory: samsung: exynos5422-dmc: Adjust polling interval and uptreshold
  memory: samsung: exynos5422-dmc: Use delayed timer as default
  PM / devfreq: Add support delayed timer for polling mode
  dt-bindings: devfreq: rk3399_dmc: Add rockchip,pmu phandle
  PM / devfreq: tegra: Add Dmitry as a maintainer
  PM / devfreq: event: Fix trivial spelling
  PM / devfreq: rk3399_dmc: Fix kernel oops when rockchip,pmu is absent
  cpuidle: change enter_s2idle() prototype
  cpuidle: psci: Prevent domain idlestates until consumers are ready
  cpuidle: psci: Convert PM domain to platform driver
  cpuidle: psci: Fix error path via converting to a platform driver
  cpuidle: psci: Fail cpuidle registration if set OSI mode failed
  ...
2020-08-03 20:28:08 -07:00
Linus Torvalds
b171373902 spi: Updates for v5.9
A fairly quiet release for SPI, nothing really going on in the core
 although there's been quite a bit of driver related activity.  This pull
 request includes the addition of some shared code in drivers/memory for
 the Renesas RPC-IF which is used by a newly added SPI driver, the memory
 subsystem doesn't seem to have a fixed maintainer at the minute and this
 seemed like the most sensible way to get that hardware supported.
 
  - Quite a few cleanups and optimizations for the Altera, Qualcomm GENI,
    sun6i and lantiq drivers.
  - Several more GPIO descriptor conversions.
  - Move the Cadence QuadSPI driver from drivers/mtd to drivers/spi.
  - New support for Mediatek MT8192 and Renesas RPC-IF, R8A7742 and
    R8A774e1.
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Merge tag 'spi-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "A fairly quiet release for SPI, nothing really going on in the core
  although there's been quite a bit of driver related activity.

  This includes the addition of some shared code in drivers/memory for
  the Renesas RPC-IF which is used by a newly added SPI driver, the
  memory subsystem doesn't seem to have a fixed maintainer at the minute
  and this seemed like the most sensible way to get that hardware
  supported.

   - Quite a few cleanups and optimizations for the Altera, Qualcomm
     GENI, sun6i and lantiq drivers.

   - Several more GPIO descriptor conversions.

   - Move the Cadence QuadSPI driver from drivers/mtd to drivers/spi.

   - New support for Mediatek MT8192 and Renesas RPC-IF, R8A7742 and
     R8A774e1"

* tag 'spi-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (119 commits)
  dt-bindings: lpspi: New property in document DT bindings for LPSPI
  spi: lpspi: fix using CS discontinuously on i.MX8DXLEVK
  spi: lpspi: remove unused fsl_lpspi->chipselect
  spi: lpspi: Fix kernel warning dump when probe fail after calling spi_register
  spi: rockchip: Fix error in SPI slave pio read
  spi: rockchip: Support 64-location deep FIFOs
  spi: rockchip: Config spi rx dma burst size depend on xfer length
  spi: spi-topcliff-pch: drop call to wakeup-disable
  spi: spidev: Align buffers for DMA
  spi: correct kernel-doc inconsistency
  spi: sun4i: update max transfer size reported
  spi: imx: enable runtime pm support
  spi: update bindings for MT8192 SoC
  spi: mediatek: add spi support for mt8192 IC
  spi: Add bindings for Lightning Mountain SoC
  spi: lantiq: Add support to Lightning Mountain SoC
  spi: lantiq: Move interrupt configuration to SoC specific data structure
  spi: lantiq: Add fifo size bit mask in SoC specific data structure
  spi: lantiq: Add support to acknowledge interrupt
  spi: lantiq: Move interrupt control register offesets to SoC specific data structure
  ...
2020-08-03 20:08:51 -07:00
Arnd Bergmann
d7c6dbc02e Memory controller drivers for v5.9, part 2
1. Minor cleanups and fixes of multiple memory controller drivers,
    mostly around code quality and readability,
 2. Add Git repository to drivers/memory entry in MAINTAINERS,
 3. Allow MIPS jz4780 FUSE driver to probe by removing conflicting memory
    region with jz4780_nemc.
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Merge tag 'memory-controller-drv-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers

Memory controller drivers for v5.9, part 2

1. Minor cleanups and fixes of multiple memory controller drivers,
   mostly around code quality and readability,
2. Add Git repository to drivers/memory entry in MAINTAINERS,
3. Allow MIPS jz4780 FUSE driver to probe by removing conflicting memory
   region with jz4780_nemc.

* tag 'memory-controller-drv-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
  memory: jz4780_nemc: Only request IO memory the driver will use
  MAINTAINERS: Add Git repository for memory controller drivers
  memory: brcmstb_dpfe: Fix language typo
  memory: samsung: exynos5422-dmc: Correct white space issues
  memory: samsung: exynos-srom: Correct alignment
  memory: pl172: Enclose macro argument usage in parenthesis
  memory: of: Correct kerneldoc
  memory: omap-gpmc: Fix language typo
  memory: omap-gpmc: Correct white space issues
  memory: omap-gpmc: Use 'unsigned int' for consistency
  memory: omap-gpmc: Enclose macro argument usage in parenthesis
  memory: omap-gpmc: Correct kerneldoc
  memory: mvebu-devbus: Align with open parenthesis
  memory: mvebu-devbus: Add missing braces to all arms of if statement
  memory: bt1-l2-ctl: Add blank lines after declarations

Link: https://lore.kernel.org/r/20200729163008.5820-1-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-31 10:36:25 +02:00
Lukasz Luba
4fc9a0470d memory: samsung: exynos5422-dmc: Add module param to control IRQ mode
The driver can operate in two modes relaying on devfreq monitoring
mechanism which periodically checks the device status or it can use
interrupts when they are provided by loaded Device Tree. The newly
introduced module parameter can be used to choose between devfreq
monitoring and internal interrupts without modifying the Device Tree.
It also sets devfreq monitoring as default when the parameter is not set
(also the case for default when the driver is not built as a module).

Reported-by: Willy Wolff <willy.mh.wolff.ml@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Lukasz Luba
74ca9e4610 memory: samsung: exynos5422-dmc: Adjust polling interval and uptreshold
In order to react faster and make better decisions under some workloads,
benchmarking the memory subsystem behavior, adjust the polling interval
and upthreshold value used by the simple_ondemand governor.

Reported-by: Willy Wolff <willy.mh.wolff.ml@gmail.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Chanwoo Choi
ae8eb8ba52 memory: samsung: exynos5422-dmc: Use delayed timer as default
Use delayed timer as default instead of deferrable timer
in order to monitor the DMC status regardless of CPU idle.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Krzysztof Kozlowski
aa35a5eee5 memory: jz4780-nemc: Do not build by default
Enabling the JZ4780_NEMC driver makes sense only for specific hardware -
the Ingenic SoC architecture.  It is not an essential driver for the SoC
support so do not enable it by default.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-07-28 22:44:42 +02:00
Paul Cercueil
f046e4a3f0 memory: jz4780_nemc: Only request IO memory the driver will use
The driver only uses the registers up to offset 0x54. Since the EFUSE
registers are in the middle of the NEMC registers, we only request
the registers we will use for now - that way the EFUSE driver can
probe too.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/20200728152629.28878-1-paul@crapouillou.net
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-28 17:34:15 +02:00
Krzysztof Kozlowski
f7fa245a1a memory: brcmstb_dpfe: Fix language typo
Fix firwmare -> firmware.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2020-07-27 11:13:33 +02:00
Krzysztof Kozlowski
331b828ceb memory: samsung: exynos5422-dmc: Correct white space issues
Remove unneeded blank line and align indentation with open parenthesis.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-27 11:13:33 +02:00
Krzysztof Kozlowski
90de1c75d8 memory: samsung: exynos-srom: Correct alignment
Align indentation with open parenthesis (or fix existing alignment).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-27 11:13:33 +02:00