Merge tag 'soc-fsl-next-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.8

DPAA2 DPIO driver
- Prefer the CPU affined DPIO

QUICC Engine drivers
- Replace one-element array and use struct_size() helper

Cleanups in various drivers

* tag 'soc-fsl-next-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: dpio: Remove unused inline function qbman_write_eqcr_am_rt_register
  soc: fsl: qe: clean up an indentation issue
  soc: fsl: dpio: Prefer the CPU affine DPIO
  soc: fsl: qbman: Remove unused inline function qm_eqcr_get_ci_stashing
  soc: fsl: qe: Replace one-element array and use struct_size() helper
  treewide: Replace zero-length array with flexible-array

Link: https://lore.kernel.org/r/20200527215740.9279-1-leoyang.li@nxp.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

When selecting a crypto cipher, we also need to select the
subsystem itself:

WARNING: unmet direct dependencies detected for CRYPTO_SHA1
  Depends on [m]: CRYPTO [=m]
  Selected by [y]:
  - TEE [=y] && (HAVE_ARM_SMCCC [=n] || COMPILE_TEST [=y] || CPU_SUP_AMD [=y])
  Selected by [m]:
  - CRYPTO_DEV_QAT [=m] && CRYPTO [=m] && CRYPTO_HW [=y]
  - CRYPTO_DEV_MEDIATEK [=m] && CRYPTO [=m] && CRYPTO_HW [=y] && (ARM && ARCH_MEDIATEK || COMPILE_TEST [=y])
  - CRYPTO_DEV_SAFEXCEL [=m] && CRYPTO [=m] && CRYPTO_HW [=y] && (OF [=y] || PCI [=y] || COMPILE_TEST [=y]) && HAS_IOMEM [=y]
  - CRYPTO_DEV_CCREE [=m] && CRYPTO [=m] && CRYPTO_HW [=y] && OF [=y] && HAS_DMA [=y]
  - CRYPTO_DEV_SP_CCP [=y] && CRYPTO [=m] && CRYPTO_HW [=y] && CRYPTO_DEV_CCP [=y] && CRYPTO_DEV_CCP_DD [=m] && DMADEVICES [=y]

Link: https://lore.kernel.org/r/20200527133924.724819-1-arnd@arndb.de
Fixes: e33bcbab

 ("tee: add support for session's client UUID generation")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ARM64: hisi: SoC driver updates for 5.8

- Generate consistent behaviour for logic_pio by defining and using
  generic _inX() and _outX() in asm-generic/io.h which have per-arch
  overrideable barriers.

* tag 'hisi-drivers-for-5.8' of git://github.com/hisilicon/linux-hisi:
  logic_pio: Use _inX() and _outX()
  logic_pio: Improve macro argument name
  io: Provide _inX() and _outX()

Merge tag 'imx-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX drivers update for 5.8:

- Optimize imx-scu driver to use one TX and one RX instead of four for
  talking to SCU.
- Fix one possible message header corruption where the response is
  longer than the request.
- Move System Control defines into dt-bindings header, so that DT can
  use them as well.
- A couple of small fixups.

* tag 'imx-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  firmware: imx: scu: Fix possible memory leak in imx_scu_probe()
  dt-bindings: firmware: imx: Add more system controls and PM clock types
  dt-bindings: firmware: imx: Move system control into dt-binding headfile
  firmware: imx: scu: Fix corruption of header
  firmware: imx-scu: Support one TX and one RX
  soc: imx8m: No need to put node when of_find_compatible_node() failed

Link: https://lore.kernel.org/r/20200523032516.11016-1-shawnguo@kernel.org


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tegra-for-5.8-soc-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

soc/tegra: Changes for v5.8-rc1

Enables Tegra210, Tegra186 and Tegra194 to be woken from suspend by the
PMIC and exports a bit more information about SoCs via sysfs.

* tag 'tegra-for-5.8-soc-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: pmc: Enable PMIC wake event on Tegra210
  soc: tegra: Fix tegra_pmc_get_suspend_mode definition
  soc/tegra: pmc: Enable PMIC wake event on Tegra194
  soc/tegra: pmc: Select GENERIC_PINCONF
  soc/tegra: fuse: Update the SoC revision attribute to display a name
  soc/tegra: fuse: Trivial clean-up of tegra_init_revision()
  soc/tegra: fuse: Add custom SoC attributes
  soc/tegra: pmc: Enable PMIC wake event on Tegra186

Link: https://lore.kernel.org/r/20200522142846.2376224-2-thierry.reding@gmail.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tegra-for-5.8-media' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

media: tegra: Changes for v5.8-rc1

This contains a V4L2 video capture driver for Tegra210.

* tag 'tegra-for-5.8-media' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  media: tegra-video: Do not enable COMPILE_TEST
  MAINTAINERS: correct path in TEGRA VIDEO DRIVER
  media: tegra-video: Make tegra210_video_formats static
  MAINTAINERS: Add Tegra Video driver section
  media: tegra-video: Add Tegra210 Video input driver
  dt-bindings: i2c: tegra: Document Tegra210 VI I2C
  dt-bindings: tegra: Add VI and CSI bindings
  dt-bindings: cpufreq: Add binding for NVIDIA Tegra20/30
  dt-bindings: memory: tegra: Add external memory controller binding for Tegra210
  dt-bindings: clock: tegra: Remove PMC clock IDs
  dt-bindings: clock: tegra: Add clock ID for CSI TPG clock

Link: https://lore.kernel.org/r/20200515145311.1580134-7-thierry.reding@gmail.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tegra-for-5.8-of' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

of: Changes for v5.8-rc1

These changes add support for multiple reserved-memory regions per
device.

* tag 'tegra-for-5.8-of' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  of: Make <linux/of_reserved_mem.h> self-contained
  of: reserved-memory: Support multiple regions per device
  of: reserved-memory: Support lookup of regions by name

Link: https://lore.kernel.org/r/20200515145311.1580134-5-thierry.reding@gmail.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tegra-for-5.8-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

cpuidle: Changes for v5.8-rc1

These changes add support for cluster power-down on Tegra30.

* tag 'tegra-for-5.8-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  cpuidle: tegra: Support CPU cluster power-down state on Tegra30
  ARM: tegra: Do not fully reinitialize L2 on resume
  ARM: tegra: Initialize r0 register for firmware wake-up

Link: https://lore.kernel.org/r/20200515145311.1580134-3-thierry.reding@gmail.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tegra-for-5.8-cpufreq' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

cpufreq: Changes for v5.8-rc1

This change move Tegra20 and Tegra30 to the generic DT CPU frequency
scaling driver.

* tag 'tegra-for-5.8-cpufreq' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  cpufreq: tegra20: Use generic cpufreq-dt driver (Tegra30 supported now)

Link: https://lore.kernel.org/r/20200515145311.1580134-2-thierry.reding@gmail.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'samsung-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/drivers

Samsung SoC drivers changes for v5.8

Fix and minor cleanup of Exynos5422 DMC (Dynamic Memory Controller)
driver.

* tag 'samsung-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  memory: samsung: exynos5422-dmc: Reduce protected code area in IRQ handler
  memory: samsung: exynos5422-dmc: Fix tFAW timings alignment

Link: https://lore.kernel.org/r/20200519070111.6265-1-krzk@kernel.org


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'qcom-drivers-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers

Qualcomm driver updates for v5.8

This contains a large set of cleanups, bug fixes, general improvements
and documentation fixes for the RPMH driver. It adds a debugfs mechanism
for inspecting Command DB. Socinfo got the "soc_id" attribute defines
and definitions for a various variants of MSM8939.

RPMH, RPMPD and RPMHPD where made possible to build as modules, but RPMH
had to be reverted due to a compilation issue when tracing is enabled.

RPMHPD gained power-domains for the SM8250 voltage corners.

The SCM driver gained fixes for two build warnings and the SMP2P had an
unnecessary error print removed.

* tag 'qcom-drivers-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (42 commits)
  Revert "soc: qcom: rpmh: Allow RPMH driver to be loaded as a module"
  soc: qcom: rpmh-rsc: Remove the pm_lock
  soc: qcom: rpmh-rsc: Simplify locking by eliminating the per-TCS lock
  kernel/cpu_pm: Fix uninitted local in cpu_pm
  soc: qcom: rpmh-rsc: We aren't notified of our own failure w/ NOTIFY_BAD
  soc: qcom: rpmh-rsc: Correctly ignore CPU_CLUSTER_PM notifications
  firmware: qcom_scm-legacy: Replace zero-length array with flexible-array
  soc: qcom: rpmh-rsc: Timeout after 1 second in write_tcs_reg_sync()
  soc: qcom: rpmh-rsc: Factor "tcs_reg_addr" and "tcs_cmd_addr" calculation
  soc: qcom: socinfo: add msm8936/39 and apq8036/39 soc ids
  soc: qcom: aoss: Add SM8250 compatible
  soc: qcom: pdr: Remove impossible error condition
  soc: qcom: rpmh: Dirt can only make you dirtier, not cleaner
  soc: qcom: rpmhpd: Add SM8250 power domains
  firmware: qcom_scm: fix bogous abuse of dma-direct internals
  dt-bindings: soc: qcom: apr: Use generic node names for APR services
  firmware: qcom_scm: Remove unneeded conversion to bool
  soc: qcom: cmd-db: Properly endian swap the slv_id for debugfs
  soc: qcom: cmd-db: Use 5 digits for printing address
  soc: qcom: cmd-db: Cast sizeof() to int to silence field width warning
  ...

Link: https://lore.kernel.org/r/20200519052533.1250024-1-bjorn.andersson@linaro.org


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'v5.7-next-soc.2' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/drivers

- make mmsys kconfig entry to depend on ARCH_MEDIATEK instead of a specific SoC
- move clock driver to bind against the new mmsys driver
  (mt2712, mt2701, mt8183, mt6797 and mt6779)

* tag 'v5.7-next-soc.2' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  clk/soc: mediatek: mt6779: Bind clock driver from platform device
  clk/soc: mediatek: mt6797: Bind clock driver from platform device
  clk/soc: mediatek: mt8183: Bind clock driver from platform device
  clk / soc: mediatek: Bind clock and gpu driver for mt2701
  clk / soc: mediatek: Bind clock and gpu driver for mt2712
  soc: mediatek: Enable mmsys driver by default if Mediatek arch is selected

Link: https://lore.kernel.org/r/d2eb19f4-589a-89c1-02ad-9f19a6cfb09a@gmail.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tee-login-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

Adds utility function in TEE subsystem for client UUID generation. This
function is also used in the optee driver.

* tag 'tee-login-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: optee: Add support for session login client UUID generation
  tee: add support for session's client UUID generation

Link: https://lore.kernel.org/r/20200512131243.GA10028@jade


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Reset controller updates for v5.8

This tag adds support for i.MX8MP and i.MX8MN SoCs to the i.MX7 reset
controller driver, extends the Hi6220 reset driver to support the AO
reset controller used to bring the Mali450 GPU out of reset, and adds
a define for the internal DAC reset line on Amlogic GXL SoCs.

* tag 'reset-for-v5.8' of git://git.pengutronix.de/pza/linux:
  reset: hi6220: Add support for AO reset controller
  reset: imx7: Add support for i.MX8MP SoC
  dt-bindings: reset: imx7: Document usage on i.MX8MP SoC
  dt-bindings: reset: imx7: Add support for i.MX8MN
  dt-bindings: reset: meson: add gxl internal dac reset

Link: https://lore.kernel.org/r/20200515143844.GA17201@pengutronix.de


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'amlogic-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/drivers

soc: amlogic: driver updates for v5.8
- support GX SoCs in the EE power-controller driver

* tag 'amlogic-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  soc: amlogic: meson-ee-pwrc: add support for the Meson GX SoCs
  soc: amlogic: meson-ee-pwrc: add support for Meson8/Meson8b/Meson8m2
  dt-bindings: power: meson-ee-pwrc: add support for the Meson GX SoCs
  dt-bindings: power: meson-ee-pwrc: add support for Meson8/8b/8m2

Link: https://lore.kernel.org/r/5ec6f570.1c69fb81.a3753.711b@mx.google.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tee-smatch-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

tee: remove unnecessary NULL check in tee_shm_alloc()

* tag 'tee-smatch-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: remove unnecessary NULL check in tee_shm_alloc()

Link: https://lore.kernel.org/r/20200504181333.GA11018@jade


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'v5.7-next-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/drivers

Refactor the mmsys to reflect that it's a clock driver and
the entry point for the DRM subsystem.

Replace clk-provider.h include with of_clk.h for mach-mediatek

* tag 'v5.7-next-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  ARM: mediatek: Replace <linux/clk-provider.h> by <linux/of_clk.h>
  soc: mediatek: Missing platform_device_unregister() on error in mtk_mmsys_probe()
  soc: mediatek: mmsys: Drop <linux/clk-provider.h>
  soc / drm: mediatek: Fix mediatek-drm device probing
  soc / drm: mediatek: Move routing control to mmsys device
  clk / soc: mediatek: Move mt8173 MMSYS to platform driver
  dt-bindings: mediatek: Update mmsys binding to reflect it is a system controller
  drm/mediatek: Omit warning on probe defers

Link: https://lore.kernel.org/r/2cf27d33-59c6-023b-9993-57a2639824ea@gmail.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tegra-for-5.8-firmware-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

firmware: tegra: Changes for v5.8-rc1

This contains a change that makes the BPMP driver a regular driver,
which fixes some weird suspend/resume ordering issues. Another fix is
also included to implement another way of enabling the L2 cache after
LP2 suspend.

* tag 'tegra-for-5.8-firmware-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  firmware: tegra: Defer BPMP probe if shared memory not available
  firmware: tf: Different way of L2 cache enabling after LP2 suspend
  firmware: tegra: Make BPMP a regular driver

Link: https://lore.kernel.org/r/20200515145311.1580134-6-thierry.reding@gmail.com
Link: https://lore.kernel.org/r/20200522142846.2376224-1-thierry.reding@gmail.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'renesas-drivers-for-v5.8-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/drivers

Renesas driver updates for v5.8 (take two)

  - Add the main config option for the RZ/G1H SoC.

* tag 'renesas-drivers-for-v5.8-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: Add Renesas R8A7742 config option

Link: https://lore.kernel.org/r/20200515100547.14671-5-geert+renesas@glider.be


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'tee-subsys-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

TEE subsystem work
- Reserve GlobalPlatform implementation defined logon method range
- Add support to register kernel memory with TEE to allow TEE bus drivers
  to register memory references.

* tag 'tee-subsys-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: add private login method for kernel clients
  tee: enable support to register kernel memory

Link: https://lore.kernel.org/r/20200504181049.GA10860@jade


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'renesas-drivers-for-v5.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/drivers

Renesas driver updates for v5.8

  - Add System Controller (SYSC) and Reset (RST) support for the new
    RZ/G1H (R8A7742) SoC.

* tag 'renesas-drivers-for-v5.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: rcar-rst: Add support for RZ/G1H
  soc: renesas: rcar-sysc: Add R8A7742 support
  clk: renesas: Add r8a7742 CPG Core Clock Definitions
  dt-bindings: power: rcar-sysc: Add r8a7742 power domain index macros

Link: https://lore.kernel.org/r/20200430084849.1457-5-geert+renesas@glider.be


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'scmi-updates-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers

ARM SCMI/SCPI updates for v5.8

1. Addition of ARM SMC/HVC as SCMI transport type with required
   abstraction already in place
2. Initial infrastructure support to add SCMI notifications from
   platform to agents
3. Miscellaneous fix adding header include guards

* tag 'scmi-updates-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: fix psci dependency
  firmware: arm_scmi: Fix return error code in smc_send_message
  firmware: arm_scmi: Fix handling of unexpected delayed responses
  firmware: arm_scmi: Clear channel for delayed responses
  firmware: arm_scmi: Clear channel on reception of unexpected responses
  firmware: arm_scmi: Rename .clear_notification() transport_ops
  firmware: arm_scmi: Add support for notifications message processing
  firmware: arm_scmi: Add notifications support in transport layer
  firmware: arm_scmi: Update protocol commands and notification list
  firmware: arm_scmi: Add receive buffer support for notifications
  firmware: arm_scpi: Add include guard to linux/scpi_protocol.h
  firmware: arm_scmi: Add include guard to linux/scmi_protocol.h
  firmware: arm_scmi: Drop checking for shmem property in parent node
  firmware: arm_scmi: Check shmem property for channel availablity
  firmware: arm_scmi: Drop empty stub for smc_mark_txdone
  firmware: arm_scmi: Make mutex channel specific
  firmware: arm_scmi: Add smc/hvc transport
  dt-bindings: arm: Add smc/hvc transport for SCMI

Link: https://lore.kernel.org/r/20200512110357.GA26454@bogus


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

There's no callers in-tree anymore since commit
3b2abda7

 ("soc: fsl: dpio: Replace QMAN array mode with ring mode enqueue")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>

There is a statement that not indented correctly, remove the
extraneous space.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>

Use the cpu affine DPIO unless there isn't one which can happen
if less DPIOs than cores are assign to the kernel.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>

There's no callers in-tree anymore.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>

The current codebase makes use of one-element arrays in the following
form:

struct something {
    int length;
    u8 data[1];
};

struct something *instance;

instance = kmalloc(sizeof(*instance) + size, GFP_KERNEL);
instance->length = size;
memcpy(instance->data, source, size);

but the preferred mechanism to declare variable-length types such as
these ones is a flexible array member[1][2], introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on. So, replace
the one-element array with a flexible-array member.

Also, make use of the new struct_size() helper to properly calculate the
size of struct qe_firmware.

This issue was found with the help of Coccinelle and, audited and fixed
_manually_.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732

 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Qiang Zhao <qiang.zhao@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>

The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732

 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Li Yang <leoyang.li@nxp.com>

Since commit 93d2e432

 ("of: platform: Batch fwnode parsing when
adding all top level devices") was added, the probing of the Tegra
SRAM device has occurred later in the boot sequence, after the BPMP
has been probed. The BPMP uses sections of the SRAM for shared memory
and if the BPMP is probed before the SRAM then it fails to probe and
never tries again. This is causing a boot failure on Tegra186 and
Tegra194. Fix this by allowing the probe of the BPMP to be deferred if
the SRAM is not available yet.

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

The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).

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

The mmsys driver is now the top level entry point for the multimedia
system (mmsys), we bind the clock driver by creating a platform device.
We also bind the MediaTek DRM driver which is not yet implement and
therefor will errror out for now.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200518113156.25009-3-matthias.bgg@kernel.org


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

The mmsys driver is now the top level entry point for the multimedia
system (mmsys), we bind the clock driver by creating a platform device.
We also bind the MediaTek DRM driver which is not yet implement and
therefor will errror out for now.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200518113156.25009-2-matthias.bgg@kernel.org


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

The mmsys driver is now the top level entry point for the multimedia
system (mmsys), we bind the clock driver by creating a platform device.
We also bind the MediaTek DRM driver which is not yet implement and
therefor will errror out for now.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200518113156.25009-1-matthias.bgg@kernel.org


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Now that the mmsys driver is the top-level entry point for the
multimedia subsystem, we could bind the clock and the gpu driver on
those devices that is expected to work, so the drm driver is
intantiated by the mmsys driver and display, hopefully, working again.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200401201736.2980433-3-enric.balletbo@collabora.com


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Now that the mmsys driver is the top-level entry point for the
multimedia subsystem, we could bind the clock and the gpu driver on
those devices that is expected to work, so the drm driver is
intantiated by the mmsys driver and display, hopefully, working again on
those devices.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200401201736.2980433-2-enric.balletbo@collabora.com


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

The mmsys driver supports only MT8173 device for now, but like other system
controllers is an important piece for other Mediatek devices. Actually
it depends on the mt8173 clock specific driver but that dependency is
not real as it can build without the clock driver. Instead of depends on
a specific model, make the driver depends on the generic ARCH_MEDIATEK and
enable by default so other Mediatek devices can start using it without
flood the Kconfig.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Link: https://lore.kernel.org/r/20200401201736.2980433-1-enric.balletbo@collabora.com


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

'chan_name' is malloced in imx_scu_probe() and should be freed
before leaving from the error handling cases, otherwise it will
cause memory leak.

Fixes: edbee095

 ("firmware: imx: add SCU firmware driver support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add support for the Meson GX SoCs to the meson-ee-pwrc driver.

The power domains on the GX SoCs are very similar to G12A. The only
known differences so far are:
- The GX SoCs do not have the HHI_VPU_MEM_PD_REG2 register (for the
  VPU power-domain)
- The GX SoCs have an additional reset line called "dvin"

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20200515204709.1505498-5-martin.blumenstingl@googlemail.com

This adds support for the power domains on Meson8/Meson8b/Meson8m2.
Meson8 doesn't use any reset lines while Meson8b and Meson8m2 use the
same set of reset lines (which is different from the newer SoCs).
Add dedicated compatible strings for Meson8, Meson8b and Meson8m2 to
support these differences.

Notable differences between Meson8 and G12A are:
- there is no HHI_VPU_MEM_PD_REG2 on the 32-bit SoCs
- the Meson8b datasheet describes an "audio DSP memory" power domain
  which is used for the hardware audio decoder
- the "amlogic,ao-sysctrl" only includes the power management related
  registers on the 32-bit SoCs, meaning the for example the
  AO_RTI_GEN_PWR_SLEEP0 register is at offset (0x2 << 2) rather than
  (0x3a << 2). As result of this (0x38 << 2) is subtracted from the
  register offsets, which is the start of the power management related
  registers.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200515204709.1505498-4-martin.blumenstingl@googlemail.com

The power domains on the GX SoCs are very similar to G12A. The only
known differences so far are:
- The GX SoCs do not have the HHI_VPU_MEM_PD_REG2 register (for the
  VPU power-domain)
- The GX SoCs have an additional reset line called "dvin"

Add a new compatible string and adjust the reset line expectations for
these SoCs.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200515204709.1505498-3-martin.blumenstingl@googlemail.com