linux-stable.git/drivers/clk/microchip, branch master

clk: microchip: mpfs-ccc: fix out of bounds access during output registration

2026-03-02T17:12:45+00:00

UBSAN reported an out of bounds access during registration of the last
two outputs. This out of bounds access occurs because space is only
allocated in the hws array for two PLLs and the four output dividers
that each has, but the defined IDs contain two DLLS and their two
outputs each, which are not supported by the driver. The ID order is
PLLs -> DLLs -> PLL outputs -> DLL outputs. Decrement the PLL output IDs
by two while adding them to the array to avoid the problem.

Fixes: d39fb172760e ("clk: microchip: add PolarFire SoC fabric clock support")
CC: stable@vger.kernel.org
Reviewed-by: Brian Masney 
Signed-off-by: Conor Dooley

Merge tag 'mips_7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2026-02-16T17:30:44+00:00

Pull MIPS updates from Thomas Bogendoerfer:
 "Cleanups and fixes"

* tag 'mips_7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (28 commits)
  Revert "clk: microchip: core: allow driver to be compiled with COMPILE_TEST"
  Revert "clk: microchip: fix typo in reference to a config option"
  MIPS: Implement ARCH_HAS_CC_CAN_LINK
  MIPS: rb532: Fix MMIO UART resource registration
  MIPS: Work around LLVM bug when gp is used as global register variable
  MIPS: Loongson64: env: Fixup serial clock-frequency when using LEFI
  MIPS: Loongson2ef: Use pcibios_align_resource() to block io range
  MIPS: Loongson2ef: Register PCI controller in early stage
  clk: microchip: fix typo in reference to a config option
  MIPS: Loongson64: dts: fix phy-related definition of LS7A GMAC
  clk: microchip: core: allow driver to be compiled with COMPILE_TEST
  MIPS: drop unused pic32.h header
  watchdog: pic32-wdt: update include to use pic32.h from platform_data
  watchdog: pic32-dmt: update include to use pic32.h from platform_data
  serial: pic32_uart: update include to use pic32.h from platform_data
  rtc: pic32: update include to use pic32.h from platform_data
  pinctrl: pic32: update include to use pic32.h from platform_data
  mmc: sdhci-pic32: update include to use pic32.h from platform_data
  irqchip/irq-pic32-evic: update include to use pic32.h from platform_data
  clk: microchip: core: update include to use pic32.h from platform_data
  ...

Revert "clk: microchip: core: allow driver to be compiled with COMPILE_TEST"

2026-02-10T15:48:59+00:00

This reverts commit 026d70dcfe5de1543bb8edb8e50d22dc16863e6b.

Signed-off-by: Thomas Bogendoerfer

Revert "clk: microchip: fix typo in reference to a config option"

2026-02-10T15:48:51+00:00

This reverts commit a6ab150deb4b740334721d18e02ad400a9d888f5.

Signed-off-by: Thomas Bogendoerfer

clk: microchip: fix typo in reference to a config option

2026-02-05T08:57:17+00:00

Commit 026d70dcfe5d ("clk: microchip: core: allow driver to be compiled
with COMPILE_TEST") introduces a typo when referring to a config option in
an ifdef directive.

Fix this typo.

Fixes: 026d70dcfe5d ("clk: microchip: core: allow driver to be compiled with COMPILE_TEST")
Signed-off-by: Lukas Bulwahn 
Reviewed-by: Brian Masney 
Signed-off-by: Thomas Bogendoerfer

clk: microchip: core: allow driver to be compiled with COMPILE_TEST

2026-01-30T14:29:08+00:00

This driver currently only supports builds against a PIC32 target. To
avoid future breakage in the future, let's update the Kconfig and the
driver so that it can be built with CONFIG_COMPILE_TEST enabled.

Note that with the existing asm calls is not how I'd want to do this
today if this was a new driver, however I don't have access to this
hardware. To avoid any breakage, let's keep the existing behavior.

Signed-off-by: Brian Masney 
Signed-off-by: Thomas Bogendoerfer

clk: microchip: core: update include to use pic32.h from platform_data

2026-01-30T14:29:08+00:00

Use the linux/platform_data/pic32.h include instead of
asm/mach-pic32/pic32.h so that the asm variant can be dropped. This
is in preparation for allowing some drivers to be compiled on other
architectures with COMPILE_TEST enabled.

Signed-off-by: Brian Masney 
Acked-by: Claudiu Beznea 
Signed-off-by: Thomas Bogendoerfer

clk: microchip: drop POLARFIRE from ARCH_MICROCHIP_POLARFIRE

2026-01-16T06:48:38+00:00

This driver is used by non-polarfire devices now, and the ARCH_MICROCHIP
symbol has been defined for some time on RISCV so drop it without any
functional change.

Signed-off-by: Conor Dooley 
Link: https://lore.kernel.org/r/20260113-doing-surplus-dc45866f71d4@spud
Signed-off-by: Claudiu Beznea

clk: microchip: core: remove unused include asm/traps.h

2026-01-10T16:21:51+00:00

The asm/traps.h include file is not actually used, so let's go ahead and
remove it.

Signed-off-by: Brian Masney 
Link: https://lore.kernel.org/r/20251205-clk-microchip-fixes-v3-3-a02190705e47@redhat.com
Signed-off-by: Claudiu Beznea

clk: microchip: core: correct return value on *_get_parent()

2026-01-10T16:20:49+00:00

roclk_get_parent() and sclk_get_parent() has the possibility of
returning -EINVAL, however the framework expects this call to always
succeed since the return value is unsigned.

If there is no parent map defined, then the current value programmed in
the hardware is used. Let's use that same value in the case where
-EINVAL is currently returned.

This index is only used by clk_core_get_parent_by_index(), and it
validates that it doesn't overflow the number of available parents.

Reported-by: kernel test robot 
Reported-by: Dan Carpenter 
Closes: https://lore.kernel.org/r/202512050233.R9hAWsJN-lkp@intel.com/
Signed-off-by: Brian Masney 
Reviewed-by: Claudiu Beznea 
Link: https://lore.kernel.org/r/20251205-clk-microchip-fixes-v3-2-a02190705e47@redhat.com
Signed-off-by: Claudiu Beznea