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>

'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: edbee095fafb ("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>

i.MX8 SoCs DTS file needs system control macro definitions, so move them
into dt-binding headfile, then include/linux/firmware/imx/types.h can be
removed and those drivers using it should be changed accordingly.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The header of the message to send can be changed if the
response is longer than the request:
 - 1st word, the header is sent
 - the remaining words of the message are sent
 - the response is received asynchronously during the
   execution of the loop, changing the size field in
   the header
 - the for loop test the termination condition using
   the corrupted header

It is the case for the API build_info which has just a
header as request but 3 words in response.

This issue is fixed storing the header locally instead of
using a pointer on it.

Fixes: edbee095fafb (firmware: imx: add SCU firmware driver support)

Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Cc: stable@vger.kernel.org
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Current imx-scu requires four TX and four RX to communicate with
SCU. This is low efficient and causes lots of mailbox interrupts.

With imx-mailbox driver could support one TX to use all four transmit
registers and one RX to use all four receive registers, imx-scu
could use one TX and one RX.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

It is nice to allow compile-testing the firmware drivers, but this
fails when the dependency is a loadable module:

aarch64-linux-ld: drivers/firmware/imx/scu-pd.o: in function `imx_sc_pd_power':
scu-pd.c:(.text+0xd8): undefined reference to `imx_scu_call_rpc'
aarch64-linux-ld: scu-pd.c:(.text+0x108): undefined reference to `imx_scu_call_rpc'
aarch64-linux-ld: drivers/firmware/imx/scu-pd.o: in function `imx_sc_pd_probe':

Change the dependencies to ensure that any driver we depend on is
either reachable or we are compile-testing and it is disabled,
effectively reverting most of the previous changes that turned
out to be incorrect.

Fixes: a9f85f93ed73 ("firmware: imx: add COMPILE_TEST support")
Fixes: 5b00b8375416 ("firmware: imx: add COMPILE_TEST for IMX_SCU driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200408190314.695067-1-arnd@arndb.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Pull ARM driver updates from Arnd Bergmann:
 "These are the usual updates for SoC specific device drivers and
  related subsystems that don't have their own top-level maintainers:

   - ARM SCMI/SCPI updates to allow pluggable transport layers

   - TEE subsystem cleanups

   - A new driver for the Amlogic secure power domain controller

   - Various driver updates for the NXP Layerscape DPAA2, NXP i.MX SCU
     and TI OMAP2+ sysc drivers.

   - Qualcomm SoC driver updates, including a new library module for
     "protection domain" notifications

   - Lots of smaller bugfixes and cleanups in other drivers"

* tag 'arm-drivers-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (70 commits)
  soc: fsl: qe: fix sparse warnings for ucc_slow.c
  soc: fsl: qe: ucc_slow: remove 0 assignment for kzalloc'ed structure
  soc: fsl: qe: fix sparse warnings for ucc_fast.c
  soc: fsl: qe: fix sparse warnings for qe_ic.c
  soc: fsl: qe: fix sparse warnings for ucc.c
  soc: fsl: qe: fix sparse warning for qe_common.c
  soc: fsl: qe: fix sparse warnings for qe.c
  soc: qcom: Fix QCOM_APR dependencies
  soc: qcom: pdr: Avoid uninitialized use of found in pdr_indication_cb
  soc: imx: drop COMPILE_TEST for IMX_SCU_SOC
  firmware: imx: add COMPILE_TEST for IMX_SCU driver
  soc: imx: gpc: fix power up sequencing
  soc: imx: increase build coverage for imx8m soc driver
  soc: qcom: apr: Add avs/audio tracking functionality
  dt-bindings: soc: qcom: apr: Add protection domain bindings
  soc: qcom: Introduce Protection Domain Restart helpers
  devicetree: bindings: firmware: add ipq806x to qcom_scm
  memory: tegra: Correct debugfs clk rate-range on Tegra124
  memory: tegra: Correct debugfs clk rate-range on Tegra30
  memory: tegra: Correct debugfs clk rate-range on Tegra20
  ...

Add COMPILE_TEST support to i.MX SCU drivers for better compile
testing coverage.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1583509356-8265-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Add COMPILE_TEST support to IMX_SCU driver for better compile
testing coverage.  Any driver depending on IMX_SCU shouldn't have
COMPILE_TEST though.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add power domain for I2C and INTMUX in CM40 SS.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>