Merge tag 'renesas-drivers-for-v5.19-tag2' of git://git./linux/kernel/git/geert/renesas-devel into arm/drivers

Renesas driver updates for v5.19 (take two)

  - Initial support for the R-Car V4H and RZ/V2M SoCs,
  - Miscellaneous fixes and improvements.

* tag 'renesas-drivers-for-v5.19-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: R-Car V3U is R-Car Gen4
  soc: renesas: rzn1: Select PM and PM_GENERIC_DOMAINS configs
  soc: renesas: Add RZ/V2M (R9A09G011) config option
  soc: renesas: rcar-rst: Add support for R-Car V4H
  soc: renesas: Identify R-Car V4H
  soc: renesas: r8a779g0-sysc: Add r8a779g0 support
  dt-bindings: clock: Add r8a779g0 CPG Core Clock Definitions
  dt-bindings: power: Add r8a779g0 SYSC power domain definitions

Link: https://lore.kernel.org/r/cover.1651828613.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'samsung-soc-5.19' of git://git./linux/kernel/git/krzk/linux into arm/drivers

Samsung mach/soc changes for v5.19

Cleanup: drop unneeded CONFIG_S3C24XX_PWM and fix some typos.

* tag 'samsung-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: s3c: fix typos in comments
  ARM: s3c: Drop config symbol S3C24XX_PWM

Link: https://lore.kernel.org/r/20220506081438.149192-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'samsung-drivers-5.19' of git://git./linux/kernel/git/krzk/linux into arm/drivers

Samsung SoC drivers changes for v5.19

Make MCT and USI bindings stricter by describing expected interrupts
per variant and expected child node.

* tag 'samsung-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  dt-bindings: timer: exynos4210-mct: describe known hardware and its interrupts
  dt-bindings: soc: samsung: usi: refer to dtschema for SPI

Link: https://lore.kernel.org/r/20220506081438.149192-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tee-cleanup-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

TEE cleanup

Removes the old and unused TEE_IOCTL_SHM_* flags
Removes unused the unused tee_shm_va2pa() and tee_shm_pa2va() functions

* tag 'tee-cleanup-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: remove flags TEE_IOCTL_SHM_MAPPED and TEE_IOCTL_SHM_DMA_BUF
  tee: remove tee_shm_va2pa() and tee_shm_pa2va()

Link: https://lore.kernel.org/r/20220506070328.GA1344495@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

nvme-apple: fix sparse endianess warnings

The new nvme-apple driver is missing a few conversions to and
from little-endian data:

drivers/nvme/host/apple.c:291:19: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned long long [usertype] prp1 @@     got restricted __le64 [usertype] prp1 @@
drivers/nvme/host/apple.c:291:19: sparse:     expected unsigned long long [usertype] prp1
drivers/nvme/host/apple.c:291:19: sparse:     got restricted __le64 [usertype] prp1
drivers/nvme/host/apple.c:292:19: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned long long [usertype] prp2 @@     got restricted __le64 [usertype] prp2 @@
drivers/nvme/host/apple.c:293:21: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [usertype] length @@     got restricted __le16 [usertype] length @@
drivers/nvme/host/apple.c:351:52: sparse: sparse: incorrect type in initializer (different base types) @@     expected unsigned int [usertype] next_dma_addr @@     got restricted __le64 [usertype] @@
drivers/nvme/host/apple.c:456:45: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le64 [usertype] @@     got unsigned int [addressable] [usertype] prp_dma @@
drivers/nvme/host/apple.c:459:31: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le64 [usertype] @@     got unsigned long long [assigned] [usertype] dma_addr @@
drivers/nvme/host/apple.c:474:25: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le64 [usertype] prp1 @@     got unsigned int [usertype] dma_address @@
drivers/nvme/host/apple.c:475:25: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le64 [usertype] prp2 @@     got unsigned int [usertype] first_dma @@

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'asahi-soc-rtkit-sart-nvme-for-5.19' of https://github.com/AsahiLinux/linux into arm/drivers

Apple SoC NVMe driver and dependencies:

  - RTKit IPC library required to boot and communicate with
    co-processors embedded inside Apple SoCs
  - SART DMA address filter required to allow some DMA transactions for
    the NVMe co-processor
  - NVMe platform driver

The following minor changes since v3 on the mailing list have been
folded in:

  - sart: %llx -> %pa for a phys_addr_t
  - rtkit:/sart: Drop IS_ENABLED inside headers
  - rtkit: Use EXPORT_SYMBOL_GPL instead of EXPORT_SYMBOL
  - nvme: Set NVME_REQ_CANCELLED in the timeout handler
  - nvme: Use DEFINE_SIMPLE_DEV_PM_OPS instead of #ifdef CONFIG_PM_SLEEP

* tag 'asahi-soc-rtkit-sart-nvme-for-5.19' of https://github.com/AsahiLinux/linux:
  nvme-apple: Add initial Apple SoC NVMe driver
  dt-bindings: nvme: Add Apple ANS NVMe
  soc: apple: Add SART driver
  dt-bindings: iommu: Add Apple SART DMA address filter
  soc: apple: Add RTKit IPC library
  soc: apple: Always include Makefile

Link: https://lore.kernel.org/r/20220505154020.84638-1-sven@svenpeter.dev
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'arm-soc/for-5.19/drivers' of https://github.com/Broadcom/stblinux into arm/drivers

This pull request contains Broadcom ARM/ARM64 SoCs drivers changes for
5.19, please pull the following:

- Qintao adds a missing NULL check to the Broadcom PMB driver after a
  memory allocation

- Li removes the redundant suppress_bind_attrs from the brcmstb_gisb
  driver which only has a probe and no remove function

* tag 'arm-soc/for-5.19/drivers' of https://github.com/Broadcom/stblinux:
  bus: brcmstb_gisb: Remove the suppress_bind_attrs attribute of the driver
  soc: bcm: Check for NULL return of devm_kzalloc()

Link: https://lore.kernel.org/r/20220504210942.1838248-4-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'optee-rpc-arg-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

OP-TEE RPC argument cache

Adds caching of the OP-TEE argument structure used to pass request to
secure world. This reduces quite a bit of unnecessary alloc/free and
possibly switching back and forth to secure work in order to register
the buffers in some configurations, most notably FF-A.

* tag 'optee-rpc-arg-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  optee: cache argument shared memory structs
  optee: add FF-A capability OPTEE_FFA_SEC_CAP_ARG_OFFSET
  optee: add OPTEE_SMC_CALL_WITH_RPC_ARG and OPTEE_SMC_CALL_WITH_REGD_ARG
  optee: rename rpc_arg_count to rpc_param_count

Link: https://lore.kernel.org/r/20220504201759.GA180315@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'scmi-updates-5.19' of git://git./linux/kernel/git/sudeep.holla/linux into arm/drivers

Arm SCMI firmware driver updates/fixes for v5.19

The main theme for most of the changes this time is around the addition
of the support for SCMI v3.1 specification changes. Though one of the main
addition in the specification is the powercap protocol, that is still
work in progress and this set includes all other changes bit and pieces
scattered all around the different parts of the specification. There are
few bugs discovered during the process and associated fixes and some
refactoring to simplify the addition of v3.1 support. It mainly includes
the support for extended names, few newly added notifications and async
command support.

Apart from v3.1 SCMI changes, OPTEE transport gets support for dynamic
shared memory.

* tag 'scmi-updates-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: (24 commits)
  firmware: arm_scmi: Fix late checks on pointer dereference
  firmware: arm_scmi: Support optee shared memory in the optee transport
  firmware: arm_scmi: Add SCMI v3.1 VOLTAGE_LEVEL_SET_COMPLETE
  firmware: arm_scmi: Add SCMI v3.1 clock notifications
  firmware: arm_scmi: Add checks for min/max limits in PERFORMANCE_LIMITS_SET
  firmware: arm_scmi: Add SCMI v3.1 perf power-cost in microwatts
  firmware: arm_scmi: Use common iterators in the perf protocol
  firmware: arm_scmi: Use common iterators in the voltage protocol
  firmware: arm_scmi: Use common iterators in the clock protocol
  firmware: arm_scmi: Add SCMI v3.1 SENSOR_AXIS_NAME_GET support
  firmware: arm_scmi: Use common iterators in the sensor protocol
  firmware: arm_scmi: Add iterators for multi-part commands
  firmware: arm_scmi: Parse clock_enable_latency conditionally
  firmware: arm_scmi: Set clock latency to U32_MAX if it is not supported
  firmware: arm_scmi: Add SCMI v3.1 protocol extended names support
  firmware: arm_scmi: Introduce a common SCMI v3.1 .extended_name_get helper
  firmware: arm_scmi: Split protocol specific definitions in a dedicated header
  firmware: arm_scmi: Remove unneeded NULL termination of clk name
  firmware: arm_scmi: Check CLOCK_RATE_SET_COMPLETE async response
  firmware: arm_scmi: Make name_get operations return a const
  ...

Link: https://lore.kernel.org/r/20220504112906.3491985-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'ffa-updates-5.19' of git://git./linux/kernel/git/sudeep.holla/linux into arm/drivers

Arm FF-A firmware driver updates/fixes for v5.19

Couple of fixes to handle fragmented memory descriptors and incorrect
UUID parameter passed to ffa_partition_probe. Another fix deals with
the incorrect use of ffa_device's driver_data by the core driver.
Apart from these fixes, there is an addition of ffa_dev_get_drvdata helper
function and its use in optee driver.

* tag 'ffa-updates-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  tee: optee: Use ffa_dev_get_drvdata to fetch driver_data
  firmware: arm_ffa: Add ffa_dev_get_drvdata helper function
  firmware: arm_ffa: Remove incorrect assignment of driver_data
  firmware: arm_ffa: Fix uuid parameter to ffa_partition_probe
  firmware: arm_ffa: Fix handling of fragmented memory descriptors

Link: https://lore.kernel.org/r/20220504112853.3491961-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tee-shm-vmalloc-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

TEE accept vmalloc()ed buffers for tee_shm_register_kernel_buf()

* tag 'tee-shm-vmalloc-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: make tee_shm_register_kernel_buf vmalloc supported

Link: https://lore.kernel.org/r/20220503192916.GA3288817@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tee-menu-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

Combine TEE config and menu in one line

* tag 'tee-menu-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: combine "config" and "menu" for TEE's menuconfig

Link: https://lore.kernel.org/r/20220503191626.GA3278203@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'reset-for-v5.19' of git://git.pengutronix.de/pza/linux into arm/drivers

Reset controller updates for v5.19

Add Meson-S4 SoC reset controller support to reset-meson, AST2600 LPC
reset controller support to reset-simple, and R9A07G054 USBPHY reset
controller support to reset-rzg2l-usbphy-ctrl. Add ACPI _RST support to
device_reset(), simplify the uniphier-glue reset driver using bulk API
and devres and clean up its dt-bindings docs. Convert most dt-bindings
docs from txt to yaml.

* tag 'reset-for-v5.19' of git://git.pengutronix.de/pza/linux:
  dt-bindings: reset: st,sti-powerdown: Convert to yaml
  dt-bindings: reset: st,sti-picophyreset: Convert to yaml
  dt-bindings: reset: socfpga: Convert to yaml
  dt-bindings: reset: snps,axs10x-reset: Convert to yaml
  dt-bindings: reset: nuvoton,npcm-reset: Convert to yaml
  dt-bindings: reset: lantiq,reset: Convert to yaml
  dt-bindings: reset: bitmain,bm1880-reset: Convert to yaml
  dt-bindings: reset: berlin: Convert to yaml
  dt-bindings: reset: ath79: Convert to yaml
  dt-bindings: reset: amlogic,meson-axg-audio-arb: Convert to yaml
  dt-bindings: reset: uniphier-glue: Clean up clocks, resets, and their names using compatible string
  reset: Kconfig: Make RESET_RZG2L_USBPHY_CTRL depend on ARCH_RZG2L
  reset: ACPI reset support
  reset: simple: Add AST2600 compatible
  reset: reset-meson: add support for the Meson-S4 SoC Reset Controller
  dt-bindings: reset: add bindings for the Meson-S4 SoC Reset Controller
  dt-bindings: reset: Add compatible for Meson-S4 Reset Controller
  reset: uniphier-glue: Use devm_add_action_or_reset()
  reset: uniphier-glue: Use reset_control_bulk API

Link: https://lore.kernel.org/r/20220503160057.46625-1-p.zabel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

soc: renesas: R-Car V3U is R-Car Gen4

Despite the name, R-Car V3U is the first member of the R-Car Gen4
family.  Hence reflect this in the SoC Family field.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/2bbecad7b6c24c0d5c1797b3f7f0733d5ba33842.1651497066.git.geert+renesas@glider.be

dt-bindings: reset: st,sti-powerdown: Convert to yaml

Convert the device tree bindings for the STMicroelectronics STi
Peripheral Powerdown reset controller to YAML schema to allow
participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-13-p.zabel@pengutronix.de

dt-bindings: reset: st,sti-picophyreset: Convert to yaml

Convert the device tree bindings for the STMicroelectronics STi
SoftReset controller to YAML schema to allow participating in DT
validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-12-p.zabel@pengutronix.de

dt-bindings: reset: socfpga: Convert to yaml

Convert the device tree bindings for the Altera SOCFPGA reset manager to
YAML schema to allow participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Dinh Nguyen <dinguyen@altera.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-11-p.zabel@pengutronix.de

dt-bindings: reset: snps,axs10x-reset: Convert to yaml

Convert the device tree bindings for the AXS10x reset controller to YAML
schema to allow participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-8-p.zabel@pengutronix.de

dt-bindings: reset: nuvoton,npcm-reset: Convert to yaml

Convert the device tree bindings for the Nuvoton NPCM reset controller
to YAML schema to allow participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Avi Fishman <avifishman70@gmail.com>
Cc: Tomer Maimon <tmaimon77@gmail.com>
Cc: Tali Perry <tali.perry1@gmail.com>
Cc: Patrick Venture <venture@google.com>
Cc: Nancy Yuen <yuenn@google.com>
Cc: Benjamin Fair <benjaminfair@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-6-p.zabel@pengutronix.de

dt-bindings: reset: lantiq,reset: Convert to yaml

Convert the device tree bindings for the Lantiq XWAY SoC RCU reset
controller to YAML schema to allow participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-5-p.zabel@pengutronix.de

dt-bindings: reset: bitmain,bm1880-reset: Convert to yaml

Convert the device tree bindings for the Bitmain BM1880 reset controller
to YAML schema to allow participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-4-p.zabel@pengutronix.de

dt-bindings: reset: berlin: Convert to yaml

Convert the device tree bindings for the Marvell Berlin reset controller
to YAML schema to allow participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Antoine Tenart <atenart@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-3-p.zabel@pengutronix.de

dt-bindings: reset: ath79: Convert to yaml

Convert the device tree bindings for the Qualcomm Atheros AR7xxx/AR9XXX
reset controller to YAML schema to allow participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Alban Bedel <albeu@free.fr>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-2-p.zabel@pengutronix.de

dt-bindings: reset: amlogic,meson-axg-audio-arb: Convert to yaml

Convert the device tree bindings for the Amlogic audio memory arbiter
controller to YAML schema to allow participating in DT validation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154338.4190674-1-p.zabel@pengutronix.de

dt-bindings: reset: uniphier-glue: Clean up clocks, resets, and their names using compatible string

Instead of "oneOf:" choices, use "allOf:" and "if:" to define clocks,
resets, and their names that can be taken by the compatible string.

The order of clock-names and reset-names doesn't change here.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/1649145378-30358-1-git-send-email-hayashi.kunihiko@socionext.com

reset: Kconfig: Make RESET_RZG2L_USBPHY_CTRL depend on ARCH_RZG2L

The USBPHY Control block is identical on Renesas RZ/G2L and RZ/V2L SoC's,
so instead of adding dependency for each SoC's add dependency on
ARCH_RZG2L. The ARCH_RZG2L config option is already selected by
ARCH_R9A07G044 and ARCH_R9A07G054.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220406071647.14037-1-prabhakar.mahadev-lad.rj@bp.renesas.com

reset: ACPI reset support

Some of the IO devices like I2C or SPI require reset at runtime to
recover from an error condition without changing the power state of
the system. Added check for ACPI handle and a call to method '__RST'
if supported. Devices using device tree method are unaffected by this.

Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
[p.zabel@pengutronix.de: wrap in #ifdef CONFIG_ACPI due to missing stubs]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220307135626.16673-1-kyarlagadda@nvidia.com

reset: simple: Add AST2600 compatible

Similar to the 2400 and 2500, the LPC controller has some simple reset
lines that are used by the UART devices.

This is already documented in LPC bindings document.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220221072650.129348-1-joel@jms.id.au

reset: reset-meson: add support for the Meson-S4 SoC Reset Controller

Compared to the A1 SoCs the number of RESET registers is different
and the offset for the level registers is the same. Add a new
compatible string and struct meson_reset_param to add support for the
reset controller on the S4 SoC.

Signed-off-by: Zelong Dong <zelong.dong@amlogic.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220107023931.13251-4-zelong.dong@amlogic.com

dt-bindings: reset: add bindings for the Meson-S4 SoC Reset Controller

Add DT bindings for the Meson-S4 SoC Reset Controller include file.

Signed-off-by: Zelong Dong <zelong.dong@amlogic.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220107023931.13251-3-zelong.dong@amlogic.com

dt-bindings: reset: Add compatible for Meson-S4 Reset Controller

Add new compatible for Amlogic's Meson-S4 Reset Controller

Signed-off-by: Zelong Dong <zelong.dong@amlogic.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220107023931.13251-2-zelong.dong@amlogic.com

reset: uniphier-glue: Use devm_add_action_or_reset()

Slightly simplify uniphier_glue_reset_probe() and drop
uniphier_glue_reset_remove() by using devm_add_action_or_reset()
for clock and reset cleanup.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20211215093829.3209416-2-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

reset: uniphier-glue: Use reset_control_bulk API

This driver already uses the clk_bulk API. Simplify the driver by using
the reset_control_bulk API as well.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20211215093829.3209416-1-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

firmware: arm_scmi: Fix late checks on pointer dereference

A few dereferences could happen before the iterator pointer argument was
checked for NULL, causing the following smatch warnings:

drivers/firmware/arm_scmi/driver.c:1214 scmi_iterator_run() warn: variable
dereferenced before check 'i' (see line 1210)

Fix by moving the checks early and dropping some unneeded local references.

No functional change.

Link: https://lore.kernel.org/r/20220503121047.3590340-1-cristian.marussi@arm.com
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Merge tag 'omap-for-v5.19/ti-sysc-signed' of git://git./linux/kernel/git/tmlind/linux-omap into arm/drivers

Driver changes for omaps

One patch to remove commas from sentinels for ti-sysc.

* tag 'omap-for-v5.19/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Drop commas after SoC match table sentinels

Merge tag 'renesas-drivers-for-v5.19-tag1' of git://git./linux/kernel/git/geert/renesas-devel into arm/drivers

Renesas driver updates for v5.19

  - Initial support for the new RZ/G2UL SoC.

* tag 'renesas-drivers-for-v5.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: Identify RZ/G2UL SoC

Link: https://lore.kernel.org/r/cover.1650638515.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'memory-controller-drv-5.19-2' of git://git./linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers

Memory controller drivers for v5.19, part two

1. Cleanup: simplify platform_get_resource() calls by using
   devm_platform_get_and_ioremap_resource() helper.
2. OMAP: allow building omap-gpmc as module and make it visible (it is
   not selected by platform anymore).

* tag 'memory-controller-drv-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
  memory: omap-gpmc: Allow building as a module
  memory: omap-gpmc: Make OMAP_GPMC config visible and selectable
  memory: renesas-rpc-if: simplify platform_get_resource_byname()
  memory: brcmstb_dpfe: simplify platform_get_resource_byname()
  memory: tegra: mc: simplify platform_get_resource()
  memory: ti-emif-pm: simplify platform_get_resource()
  memory: ti-emif: simplify platform_get_resource()
  memory: emif: simplify platform_get_resource()
  memory: da8xx-ddrctl: simplify platform_get_resource()

Link: https://lore.kernel.org/r/20220503070652.54091-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

nvme-apple: Add initial Apple SoC NVMe driver

Apple SoCs such as the M1 come with an embedded NVMe controller that
is not attached to any PCIe bus. Additionally, it doesn't conform
to the NVMe specification and requires a bunch of changes to command
submission and IOMMU configuration to work.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sven Peter <sven@svenpeter.dev>

dt-bindings: nvme: Add Apple ANS NVMe

Apple SoCs such as the M1 come with an embedded NVMe coprocessor called
ANS2.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sven Peter <sven@svenpeter.dev>

soc: apple: Add SART driver

The NVMe co-processor on the Apple M1 uses a DMA address filter called
SART for some DMA transactions. This adds a simple driver used to
configure the memory regions from which DMA transactions are allowed.

Unlike a real IOMMU, SART does not support any pagetables and can't be
implemented inside the IOMMU subsystem using iommu_ops.

It also can't be implemented using dma_map_ops since not all DMA
transactions of the NVMe controller are filtered by SART.
Instead, most buffers have to be registered using the integrated NVMe
IOMMU and we can't have two separate dma_map_ops implementations for a
single device.

Co-developed-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Sven Peter <sven@svenpeter.dev>

dt-bindings: iommu: Add Apple SART DMA address filter

Apple SoCs such as the M1 come with a simple DMA address filter called
SART. Unlike a real IOMMU no pagetables can be configured but instead
DMA transactions can be allowed for up to 16 paddr regions. The consumer
also needs special support since not all DMA allocations have to be
added to this filter.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sven Peter <sven@svenpeter.dev>

soc: apple: Add RTKit IPC library

Apple SoCs such as the M1 come with multiple embedded co-processors
running proprietary firmware. Communication with those is established
over a simple mailbox using the RTKit IPC protocol.

This cannot be implemented inside the mailbox subsystem since on top
of communication over channels we also need support for starting,
hibernating and resetting these co-processors. We also need to
handle shared memory allocations differently depending on the
co-processor and don't want to split that across multiple drivers.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sven Peter <sven@svenpeter.dev>

soc: apple: Always include Makefile

We want to allow the code inside drivers/soc/apple to be compiled with
COMPILE_TEST but this will currently result in linking errors because
ARCH_APPLE is not set and make will never recurse into
drivers/soc/apple.
Let's just unconditionally recurse into apple/ since all drivers
in there are guarded by config options anyways.

Signed-off-by: Sven Peter <sven@svenpeter.dev>

tee: optee: Use ffa_dev_get_drvdata to fetch driver_data

Due to lack of an helper like ffa_dev_get_drvdata, this driver was
fetching driver_data directly accessing the structure member. Now that
we have added an helper, just use the same instead.

Link: https://lore.kernel.org/r/20220429113946.2087145-4-sudeep.holla@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_ffa: Add ffa_dev_get_drvdata helper function

Add a helper function to fetch ffa_dev's driver_data using
dev_get_drvdata. At the same time move existing ffa_dev_set_drvdata
to use dev_set_drvdata.

Link: https://lore.kernel.org/r/20220429113946.2087145-3-sudeep.holla@arm.com
Suggested-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_ffa: Remove incorrect assignment of driver_data

The ffa core driver currently assigns its own driver information
to individual ffa device driver_data which is wrong. Firstly, it leaks
this core driver information to individual ffa_device and hence to
ffa_driver. Secondly the ffa_device driver_data is for use by individual
ffa_driver and not for this core driver managing all those devices.

Link: https://lore.kernel.org/r/20220429113946.2087145-2-sudeep.holla@arm.com
Fixes: d0c0bce83122 ("firmware: arm_ffa: Setup in-kernel users of FFA partitions")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_ffa: Fix uuid parameter to ffa_partition_probe

While we pass uuid_null intentionally to ffa_partition_probe in
ffa_setup_partitions to get the count of the partitions, it must not be
uuid_null in ffa_partition_info_get which is used by the ffa_drivers
to fetch the specific partition info passing the UUID of the partition.

Fix ffa_partition_info_get by passing the received uuid down to
ffa_partition_probe so that the correct partition information is fetched.

Link: https://lore.kernel.org/r/20220429113946.2087145-1-sudeep.holla@arm.com
Fixes: d0c0bce83122 ("firmware: arm_ffa: Setup in-kernel users of FFA partitions")
Reported-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

memory: omap-gpmc: Allow building as a module

Allow OMAP_GPMC to be built as a module.

When building this driver as a module, the symbol
'of_default_bus_match_table' will not be found as it is not being
exported.

The of_match_node() call is redundant anyways as
of_platform_default_populate() already takes care of matching with
'of_default_bus_match_table'. So get rid of that call. This will also
resolve the module build failure.

Move compatible match table to the end where it is usually expected.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20220426082611.24427-3-rogerq@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

memory: omap-gpmc: Make OMAP_GPMC config visible and selectable

So far for armv7 TI platforms, GPMC was being selected by
arch/arm/mach-* architecture Kconfig files.

For K3 platforms, GPMC is no longer required for basic boot and cannot
be always enabled by default by mach- Kconfig.

We need a way for user (or board defconfig) to enable it if required so
make OMAP_GPMC Kconfig option always visible.

Drop COMPILE_TEST as build fails if IRQ_DOMAIN is not enabled.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20220426082611.24427-2-rogerq@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

firmware: arm_scmi: Support optee shared memory in the optee transport

Add support for TEE shared memory in optee scmi transport. When using
tee shared memory, scmi optee transport manages SCMI messages using
msg protocol(from msg.c) in shared memory, whereas smt(from shmem.c)
protocol is used with static IOMEM based shared buffers.

Link: https://lore.kernel.org/r/20220425085127.2009-1-etienne.carriere@linaro.org
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Add SCMI v3.1 VOLTAGE_LEVEL_SET_COMPLETE

Add SCMI v3.1 voltage protocol support for asynchronous VOLTAGE_LEVEL_SET
command.

Note that, if a voltage domain is advertised to support the asynchronous
version of VOLTAGE_LEVEL_SET, the command will be issued asynchronously
unless explicitly requested to use the synchronous version by setting the
mode to SCMI_VOLTAGE_LEVEL_SET_SYNC when calling voltage_ops->level_set.

The SCMI regulator driver level_set invocation has been left unchanged
so that it will transparently use the asynchronous version if available.

Link: https://lore.kernel.org/r/20220330150551.2573938-21-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Add SCMI v3.1 clock notifications

Add SCMI v3.1 clock pre and post notifications.

Link: https://lore.kernel.org/r/20220330150551.2573938-20-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Add checks for min/max limits in PERFORMANCE_LIMITS_SET

Starting with SCMI v3.1, the PERFORMANCE_LIMITS_SET command allows a user
to request only one between max and min ranges to be changed, while leaving
the other untouched if set to zero in the request. Anyway SCMI v3.1 states
also explicitly that you cannot leave both of those unchanged (zeroed) when
issuing such command, so add a proper check for this condition.

Link: https://lore.kernel.org/r/20220330150551.2573938-23-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
[sudeep.holla: Dropped check for v3.0 and above to make the check
unconditional, updated the subject accordingly]
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Add SCMI v3.1 perf power-cost in microwatts

Add SCMI v3.1 internal support for parsing message attributes reporting
the capability of a performance domain to report power-cost in microwatts.

Link: https://lore.kernel.org/r/20220330150551.2573938-22-cristian.marussi@arm.com
Cc: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Use common iterators in the perf protocol

Make SCMI perf protocol use the common iterator protocol helpers for
issuing the multi-part commands.

Link: https://lore.kernel.org/r/20220330150551.2573938-19-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Use common iterators in the voltage protocol

Make SCMI voltage protocol use the common iterator protocol helpers for
issuing the multi-part commands.

Link: https://lore.kernel.org/r/20220330150551.2573938-18-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Use common iterators in the clock protocol

Make SCMI clock protocol use the common iterator protocol helpers for
issuing the multi-part commands.

Link: https://lore.kernel.org/r/20220330150551.2573938-17-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Add SCMI v3.1 SENSOR_AXIS_NAME_GET support

Add support for SCMI v3.1 SENSOR_AXIS_NAME_GET multi-part command using the
common iterator protocol helpers.

Link: https://lore.kernel.org/r/20220330150551.2573938-16-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Use common iterators in the sensor protocol

Make SCMI sensor protocol use the common iterator protocol helpers
for issuing the multi-part commands.

Link: https://lore.kernel.org/r/20220330150551.2573938-15-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Add iterators for multi-part commands

SCMI specification defines some commands as optionally issued over multiple
messages in order to overcome possible limitations in payload size enforced
by the configured underlyinng transport.

Introduce some common protocol helpers to provide a unified solution for
issuing such SCMI multi-part commands.

Link: https://lore.kernel.org/r/20220330150551.2573938-14-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Parse clock_enable_latency conditionally

The clock_enable_latency field in CLOCK_ATTRIBUTES response message has
been added only since SCMI v3.1. Use the advertised SCMI clock protocol
version as a proper condition check for parsing it, instead of the bare
message length lookup.

Link: https://lore.kernel.org/r/20220330150551.2573938-13-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Set clock latency to U32_MAX if it is not supported

As per the spec, the clock_enable_delay is the worst case latency
incurred by the platform to enable the clock. The value of 0 indicates
that the platform doesn't support the same and must be considered as
maximum latency for practical purposes.

Currently the value of 0 is assigned as is and is propogated to the clock
framework which can assume that the clock can support atomic enable operation.

Link: https://lore.kernel.org/r/20220428122913.1654821-1-sudeep.holla@arm.com
Fixes: 18f295b758b2 ("firmware: arm_scmi: Add support for clock_enable_latency")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Add SCMI v3.1 protocol extended names support

Using the common protocol helper implementation add support for all new
SCMIv3.1 extended names commands related to all protocols with the
exception of SENSOR_AXIS_GET_NAME.

Link: https://lore.kernel.org/r/20220330150551.2573938-12-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Introduce a common SCMI v3.1 .extended_name_get helper

Introduce a new set of common protocol operations bound to the protocol
handle structure so that can be invoked by the protocol implementation code
even when protocols are built as distinct loadable kernel module without
the need of exporting new symbols, like already done with scmi_xfer_ops.

Add at first, as new common protocol helper, an .extended_name_get helper
which will ease implementation and will avoid code duplication when adding
new SCMIv3.1 per-protocol _NAME_GET commands.

Link: https://lore.kernel.org/r/20220330150551.2573938-11-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Split protocol specific definitions in a dedicated header

Move some SCMI protocol specific definitions from common.h into a the new
dedicated protocols.h header so that SCMI protocols core code can include
only what it needs; this is going to be useful to avoid the risk of growing
indefinitely the dimension of common.h, especially when introducing some
common protocols helper functions.

Header common.h will continue to be included by SCMI core and transport
layers.

Link: https://lore.kernel.org/r/20220330150551.2573938-10-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Remove unneeded NULL termination of clk name

The string array 'name' inside struct scmi_clock_info holds the clock name
which was successfully retrieved by querying the SCMI platform, unless the
related underlying SCMI command failed.

Anyway, such scmi_clock_info structure is allocated using devm_kcalloc()
which in turn internally appends a __GFP_ZERO flag to its invocation:
as a consequence the string 'name' field does not need to be zeroed when
we fail to get the clock name via SCMI, it is already NULL terminated.

Remove unneeded explicit NULL termination.

Link: https://lore.kernel.org/r/20220330150551.2573938-9-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Check CLOCK_RATE_SET_COMPLETE async response

When CLOCK_RATE_SET command is issued in asynchronous mode the delayed
response CLOCK_RATE_SET_COMPLETE comes back once the SCMI platform has
effectively operated the requested change: such delayed response carries
also the clock ID and the final clock rate that has been set.

As an aid to debug issues, check that the clock ID in the delayed
response matches the expected one and debug print the rate value.

Link: https://lore.kernel.org/r/20220330150551.2573938-8-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Make name_get operations return a const

A few protocol operations are available that returns a pointer to an
internal character array representing resource name. Make those functions
return a const pointer to such array.

Link: https://lore.kernel.org/r/20220330150551.2573938-7-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Dynamically allocate implemented protocols array

Move away from a statically allocated array for holding the current set of
protocols implemented by the platform in favour of allocating it
dynamically based on the number of protocols effectively advertised by the
platform via BASE protocol exchanges.

While at that, rectify the BASE_DISCOVER_LIST_PROTOCOLS loop iterations to
terminate only when a number of protocols equal to the advertised ones has
been received, instead of looping till the platform returns no more
protocols descriptors. This new behaviour is better compliant with the
specification and it has been tested to work equally well against an SCMI
stack running on top of an official SCP firmware on a JUNO board.

Link: https://lore.kernel.org/r/20220330150551.2573938-6-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Validate BASE_DISCOVER_LIST_PROTOCOLS response

Do not blindly trust SCMI platform response about list of implemented
protocols, instead validate the reported length of the list of protocols
against the real payload size of the message reply.

Link: https://lore.kernel.org/r/20220330150551.2573938-5-cristian.marussi@arm.com
Fixes: b6f20ff8bd94 ("firmware: arm_scmi: add common infrastructure and support for base protocol")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
[sudeep.holla: Added early break if loop_num_ret = 0 and simplified calc_list_sz
calculation]
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

soc: renesas: rzn1: Select PM and PM_GENERIC_DOMAINS configs

PM and PM_GENERIC_DOMAINS configs are required for RZ/N1 SOCs.
Without these configs, the clocks used by the PCI bridge are not
enabled and so accessing the devices leads to a kernel crash:

    Unhandled fault: external abort on non-linefetch (0x1008) at 0x90b5f848

Select PM and PM_GENERIC_DOMAINS for ARCH_RZN1

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20220422120850.769480-5-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

soc: renesas: Add RZ/V2M (R9A09G011) config option

Add a configuration option for the RZ/V2M SoC.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Link: https://lore.kernel.org/r/20220420204307.87343-1-phil.edworthy@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

firmware: arm_scmi: Fix list protocols enumeration in the base protocol

While enumerating protocols implemented by the SCMI platform using
BASE_DISCOVER_LIST_PROTOCOLS, the number of returned protocols is
currently validated in an improper way since the check employs a sum
between unsigned integers that could overflow and cause the check itself
to be silently bypassed if the returned value 'loop_num_ret' is big
enough.

Fix the validation avoiding the addition.

Link: https://lore.kernel.org/r/20220330150551.2573938-4-cristian.marussi@arm.com
Fixes: b6f20ff8bd94 ("firmware: arm_scmi: add common infrastructure and support for base protocol")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_scmi: Make protocols initialisation fail on basic errors

Bail out of protocol initialisation routine early when basic information
about protocol version and attributes could not be retrieved. Failing to
act this way can lead to a successfully initialized SCMI protocol which
is in fact not fully functional.

Link: https://lore.kernel.org/r/20220330150551.2573938-3-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

firmware: arm_ffa: Fix handling of fragmented memory descriptors

Fix the handling of MEM_FRAG_TX/RX SMCs when the full memory descriptor
does not fit in a single innovation of a memory sharing request.

The current implementation expects a FFA_MEM_SHARE/FFA_MEM_LEND
call to always receive a FFA_SUCCESS response, however in the
case where a full descriptor does not fit inside the partitions
TX buffer, the call can instead complete with a FFA_MEM_FRAG_RX SMC
to request the next part of the descriptor to be transmitted.

Similarly a FFA_MEM_FRAG_TX call currently only expects
FFA_MEM_FRAG_RX as a response, however once the full descriptor
has been transmitted the FFA_SUCCESS ABI will be used to indicate
successful transmission.

Update the existing code to match the expected behaviour.

Link: https://lore.kernel.org/r/20220426121219.1801601-1-marc.bonnici@arm.com
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

bus: brcmstb_gisb: Remove the suppress_bind_attrs attribute of the driver

Even if platform_driver does not set suppress_bind_attrs attribute, when
registering with platform_driver_probe, the value of suppress_bind_attrs is
still true, see __platform_driver_probe().

Signed-off-by: lizhe <sensor1010@163.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

soc: bcm: Check for NULL return of devm_kzalloc()

As the potential failure of allocation, devm_kzalloc() may return NULL.  Then
the 'pd->pmb' and the follow lines of code may bring null pointer dereference.

Therefore, it is better to check the return value of devm_kzalloc() to avoid
this confusion.

Fixes: 8bcac4011ebe ("soc: bcm: add PM driver for Broadcom's PMB")
Signed-off-by: QintaoShen <unSimple1993@163.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

tee: remove flags TEE_IOCTL_SHM_MAPPED and TEE_IOCTL_SHM_DMA_BUF

These look to be leftover from an early edition of this driver. Userspace
does not need this information. Checking all users of this that I have
access to I have verified no one is using them.

They leak internal use flags out to userspace. Even more they are not
correct anymore after a45ea4efa358. Lets drop these flags before
someone does try to use them for something and they become ABI.

Signed-off-by: Andrew Davis <afd@ti.com>
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

tee: remove tee_shm_va2pa() and tee_shm_pa2va()

We should not need to index into SHMs based on absolute VA/PA.
These functions are not used and this kind of usage should not be
encouraged anyway. Remove these functions.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

memory: renesas-rpc-if: simplify platform_get_resource_byname()

Use devm_platform_ioremap_resource_byname() instead of
platform_get_resource_byname() and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419142859.380566-7-krzysztof.kozlowski@linaro.org

memory: brcmstb_dpfe: simplify platform_get_resource_byname()

Use devm_platform_ioremap_resource_byname() instead of
platform_get_resource_byname() and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419142859.380566-6-krzysztof.kozlowski@linaro.org

memory: tegra: mc: simplify platform_get_resource()

Use devm_platform_ioremap_resource() instead of platform_get_resource()
and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419142859.380566-5-krzysztof.kozlowski@linaro.org

memory: ti-emif-pm: simplify platform_get_resource()

Use devm_platform_get_and_ioremap_resource() instead of
platform_get_resource() and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419142859.380566-4-krzysztof.kozlowski@linaro.org

memory: ti-emif: simplify platform_get_resource()

Use devm_platform_ioremap_resource() instead of platform_get_resource()
and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419142859.380566-3-krzysztof.kozlowski@linaro.org

memory: emif: simplify platform_get_resource()

Use devm_platform_ioremap_resource() instead of platform_get_resource()
and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419142859.380566-2-krzysztof.kozlowski@linaro.org

memory: da8xx-ddrctl: simplify platform_get_resource()

Use devm_platform_get_and_ioremap_resource() instead of
platform_get_resource() and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419142859.380566-1-krzysztof.kozlowski@linaro.org

optee: cache argument shared memory structs

Implements a cache to handle shared memory used to pass the argument
struct needed when doing a normal yielding call into secure world.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

soc: renesas: rcar-rst: Add support for R-Car V4H

Add support for R-Car V4H (R8A779G0) to the R-Car RST driver.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20220420084255.375700-12-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

soc: renesas: Identify R-Car V4H

Add support for identifying the R-Car V4H (R8A779G0) SoC.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20220420084255.375700-11-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

soc: renesas: r8a779g0-sysc: Add r8a779g0 support

Add support for R-Car V4H (R8A779G0) SoC power areas and register
access.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20220420084255.375700-10-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Merge tag 'renesas-r8a779g0-dt-binding-defs-tag' into renesas-drivers-for-v5.19

Renesas R-Car V4H DT Binding Definitions

Clock and Power Domain definitions for the Renesas R-Car V4H (R8A779G0)
SoC, shared by driver and DT source files.

dt-bindings: clock: Add r8a779g0 CPG Core Clock Definitions

Add all Clock Pulse Generator Core Clock Outputs for the Renesas
R-Car V4H (R8A779G0) SoC.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20220425064201.459633-3-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

dt-bindings: power: Add r8a779g0 SYSC power domain definitions

Add power domain indices for R-Car V4H (r8a779g0).

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220425064201.459633-2-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

dt-bindings: timer: exynos4210-mct: describe known hardware and its interrupts

Most of the Samsung Exynos SoCs use almost the same Multi-Core Timer
block, so only two compatibles were used so far (for Exynos4210 and
Exynos4412 flavors) with Exynos4210-one being used in most of the SoCs.
However the Exynos4210 flavor actually differs by number of interrupts.

Add new compatibles, maintaining backward compatibility with Exynos4210,
and constraints for number of interrupts.  This allows to exactly match
the Exynos MCT hardware.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407194127.19004-1-krzysztof.kozlowski@linaro.org

Merge tag 'memory-controller-drv-5.19' of git://git./linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers

Memory controller drivers for v5.19

1. Exynos: Reduce memory usage/allocation in Exynos5422 DMC driver.
2. Renesas:
   - Add bindings for R-Car H3/M3/E3.
   - Simplify single/double data register access.
3. Minor cleanups: TI/EMIF and FSL/Corenet.

* tag 'memory-controller-drv-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
  memory: fsl-corenet-cf: Use helper function devm_platform_ioremap_resource()
  memory: renesas-rpc-if: Simplify single/double data register access
  dt-bindings: memory: renesas,rpc-if: Document R-Car H3/M3/E3 support
  memory: emif: remove unneeded ENOMEM error messages
  memory: samsung: exynos5422-dmc: Avoid some over memory allocation

Link: https://lore.kernel.org/r/20220420072712.12648-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

bus: ti-sysc: Drop commas after SoC match table sentinels

It does not make sense to have a comma after a sentinel, as any new
elements must be added before the sentinel.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-Id: <602f74030dc746eaa9f82f115acc46e62c6be165.1646311501.git.geert+renesas@glider.be>
Signed-off-by: Tony Lindgren <tony@atomide.com>

memory: fsl-corenet-cf: Use helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of calling
platform_get_resource() and devm_ioremap_resource() separately.Make the
code simpler without functional changes.

Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Link: https://lore.kernel.org/r/20220418020147.2556925-1-lv.ruyi@zte.com.cn
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Linux 5.18-rc3

Merge tag 'for-linus-5.18-rc3-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fixlet from Juergen Gross:
 "A single cleanup patch for the Xen balloon driver"

* tag 'for-linus-5.18-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/balloon: don't use PV mode extra memory for zone device allocations

Merge tag 'x86-urgent-2022-04-17' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "Two x86 fixes related to TSX:

   - Use either MSR_TSX_FORCE_ABORT or MSR_IA32_TSX_CTRL to disable TSX
     to cover all CPUs which allow to disable it.

   - Disable TSX development mode at boot so that a microcode update
     which provides TSX development mode does not suddenly make the
     system vulnerable to TSX Asynchronous Abort"

* tag 'x86-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tsx: Disable TSX development mode at boot
  x86/tsx: Use MSR_TSX_CTRL to clear CPUID bits