linux.git/drivers/clk/imx, branch v5.19

Merge tag 'driver-core-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2022-06-03T18:48:47+00:00

Pull driver core updates from Greg KH:
 "Here is the set of driver core changes for 5.19-rc1.

  Lots of tiny driver core changes and cleanups happened this cycle, but
  the two major things are:

   - firmware_loader reorganization and additions including the ability
     to have XZ compressed firmware images and the ability for userspace
     to initiate the firmware load when it needs to, instead of being
     always initiated by the kernel. FPGA devices specifically want this
     ability to have their firmware changed over the lifetime of the
     system boot, and this allows them to work without having to come up
     with yet-another-custom-uapi interface for loading firmware for
     them.

   - physical location support added to sysfs so that devices that know
     this information, can tell userspace where they are located in a
     common way. Some ACPI devices already support this today, and more
     bus types should support this in the future.

  Smaller changes include:

   - driver_override api cleanups and fixes

   - error path cleanups and fixes

   - get_abi script fixes

   - deferred probe timeout changes.

  It's that last change that I'm the most worried about. It has been
  reported to cause boot problems for a number of systems, and I have a
  tested patch series that resolves this issue. But I didn't get it
  merged into my tree before 5.18-final came out, so it has not gotten
  any linux-next testing.

  I'll send the fixup patches (there are 2) as a follow-on series to this
  pull request.

  All have been tested in linux-next for weeks, with no reported issues
  other than the above-mentioned boot time-outs"

* tag 'driver-core-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits)
  driver core: fix deadlock in __device_attach
  kernfs: Separate kernfs_pr_cont_buf and rename_lock.
  topology: Remove unused cpu_cluster_mask()
  driver core: Extend deferred probe timeout on driver registration
  MAINTAINERS: add Russ Weight as a firmware loader maintainer
  driver: base: fix UAF when driver_attach failed
  test_firmware: fix end of loop test in upload_read_show()
  driver core: location: Add "back" as a possible output for panel
  driver core: location: Free struct acpi_pld_info *pld
  driver core: Add "*" wildcard support to driver_async_probe cmdline param
  driver core: location: Check for allocations failure
  arch_topology: Trace the update thermal pressure
  kernfs: Rename kernfs_put_open_node to kernfs_unlink_open_file.
  export: fix string handling of namespace in EXPORT_SYMBOL_NS
  rpmsg: use local 'dev' variable
  rpmsg: Fix calling device_lock() on non-initialized device
  firmware_loader: describe 'module' parameter of firmware_upload_register()
  firmware_loader: Move definitions from sysfs_upload.h to sysfs.h
  firmware_loader: Fix configs for sysfs split
  selftests: firmware: Add firmware upload selftests
  ...

clk: imx8mp: fix usb_root_clk parent

2022-05-17T08:42:07+00:00

According to reference mannual CCGR77(usb) sources from hsio_axi, fix
it.

Fixes: 9c140d9926761 ("clk: imx: Add support for i.MX8MP clock driver")
Signed-off-by: Peng Fan 
Reviewed-by: Abel Vesa 
Link: https://lore.kernel.org/r/20220507125430.793287-1-peng.fan@oss.nxp.com
Signed-off-by: Abel Vesa

clk: imx8mp: add clkout1/2 support

2022-05-02T09:38:10+00:00

clkout1 and clkout2 allow to supply clocks from the SoC to the board,
which is used by some board designs to provide reference clocks.

Signed-off-by: Lucas Stach 
Reviewed-by: Abel Vesa 
Link: https://lore.kernel.org/r/20220427162131.3127303-1-l.stach@pengutronix.de
Signed-off-by: Abel Vesa

clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage

2022-05-02T09:35:06+00:00

If the device is already in a runtime PM enabled state
pm_runtime_get_sync() will return 1.

Also, we need to call pm_runtime_put_noidle() when pm_runtime_get_sync()
fails, so use pm_runtime_resume_and_get() instead. this function
will handle this.

Fixes: 78edeb080330 ("clk: imx: scu: add runtime pm support")
Signed-off-by: Miaoqian Lin 
Reviewed-by: Abel Vesa 
Link: https://lore.kernel.org/r/20220425011117.25093-1-linmq006@gmail.com
Signed-off-by: Abel Vesa

clk: imx: scu: Fix kfree() of static memory on setting driver_override

2022-04-22T15:13:54+00:00

The driver_override field from platform driver should not be initialized
from static memory (string literal) because the core later kfree() it,
for example when driver_override is set via sysfs.

Use dedicated helper to set driver_override properly.

Fixes: 77d8f3068c63 ("clk: imx: scu: add two cells binding support")
Acked-by: Stephen Boyd 
Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20220419113435.246203-10-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman

clk: imx8mp: Add DISP2 pixel clock

2022-04-18T09:51:04+00:00

Add pixel clock for second LCDIFv3 interface. Both LCDIFv3 interfaces use
the same set of parent clock, so deduplicate imx8mp_media_disp1_pix_sels
into common imx8mp_media_disp_pix_sels and use it for both.

Signed-off-by: Marek Vasut 
Cc: Abel Vesa 
Cc: Fabio Estevam 
Cc: NXP Linux Team 
Cc: Peng Fan 
Cc: Shawn Guo 
Reviewed-by: Abel Vesa 
Link: https://lore.kernel.org/r/20220313123949.207284-1-marex@denx.de
Signed-off-by: Abel Vesa

clk: imx: scu: fix a potential memory leak in __imx_clk_gpr_scu()

2022-04-12T11:02:02+00:00

In __imx_clk_gpr_scu(), if imx_scu_clk_is_valid(rsrc_id) fails, then
`clk_node` which is allocated by kzalloc() is not properly released,
which may lead to memory leak.
So this patch added kfree(clk_node) on the above error path before
return ERR_PTR(-EINVAL).

Signed-off-by: Xiaoke Wang 
Reviewed-by: Abel Vesa 
Link: https://lore.kernel.org/r/tencent_27FF59903EE6AB5C0D0E6D0A8E7059A59007@qq.com
Signed-off-by: Abel Vesa

clk: imx: Add check for kcalloc

2022-04-12T11:00:20+00:00

As the potential failure of the kcalloc(),
it should be better to check it in order to
avoid the dereference of the NULL pointer.

Fixes: 379c9a24cc23 ("clk: imx: Fix reparenting of UARTs not associated with stdout")
Signed-off-by: Jiasheng Jiang 
Reviewed-by: Abel Vesa 
Link: https://lore.kernel.org/r/20220310080257.1988412-1-jiasheng@iscas.ac.cn
Signed-off-by: Abel Vesa

clk: imx8mn: add GPT support

2022-04-12T10:56:02+00:00

Add support for the General Purpose Timer (GPT) clocks on the i.MX8MN.
The i.MX8MN GPT IP block is the same as on the i.MX8MM, on which this
patch is based.

Signed-off-by: Alvin Šipraga 
Reviewed-by: Abel Vesa 
Link: https://lore.kernel.org/r/20220317223600.175894-2-alvin@pqrs.dk
Signed-off-by: Abel Vesa

clk: imx: Remove the snvs clock

2022-04-12T10:52:58+00:00

The SNVS moudule is not used only by the linux, it may also used
by other SW component is secure world. No sense to populate it
in linux, so remove it.

Signed-off-by: Jacky Bai 
Reviewed-by: Abel Vesa 
Link: https://lore.kernel.org/r/20220310093404.236966-1-ping.bai@nxp.com
Signed-off-by: Abel Vesa