This series moves the ppc4xx GPIO driver from arch/powerpc to
drivers/gpio, converts it to be a proper platform driver using
generic MMIO helpers, drops architecture-specific accessors, and
prepares it for module build and COMPILE_TEST.

v2: use guard(), reorganize a bit for clarity.

Rosen Penev (8):
  gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio
  gpio: ppc44x: update all 4xx to 44x
  gpio: ppc44x: Use module platform driver helper for GPIO
  gpio: ppc44x: Use platform resource helper for GPIO MMIO
  gpio: ppc44x: Convert GPIO to generic MMIO
  gpio: ppc44x: drop PPC-specific IO helpers
  gpio: ppc44x: fix undefined behavior in GPIO_MASK2 macro
  gpio: ppc44x: use dev_name() for chip label

 arch/powerpc/configs/44x/warp_defconfig |   2 +-
 arch/powerpc/configs/ppc44x_defconfig   |   2 +-
 arch/powerpc/platforms/44x/Kconfig      |   7 -
 arch/powerpc/platforms/44x/Makefile     |   2 +-
 arch/powerpc/platforms/44x/gpio.c       | 211 ------------------------
 drivers/gpio/Kconfig                    |   7 +
 drivers/gpio/Makefile                   |   1 +
 drivers/gpio/gpio-ppc44x.c              | 208 +++++++++++++++++++++++
 8 files changed, 219 insertions(+), 221 deletions(-)
 delete mode 100644 arch/powerpc/platforms/44x/gpio.c
 create mode 100644 drivers/gpio/gpio-ppc44x.c

-- 
2.55.0

On Mon, 03 Aug 2026 15:35:31 -0700, Rosen Penev wrote:
> This series moves the ppc4xx GPIO driver from arch/powerpc to
> drivers/gpio, converts it to be a proper platform driver using
> generic MMIO helpers, drops architecture-specific accessors, and
> prepares it for module build and COMPILE_TEST.
> 
> v2: use guard(), reorganize a bit for clarity.
> 
> [...]

Applied to powerpc/next.

[1/8] gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio
      https://git.kernel.org/powerpc/c/66da1ae19672a295507b0c66cd74231e5bf482a9
[2/8] gpio: ppc44x: update all 4xx to 44x
      https://git.kernel.org/powerpc/c/f9476e237ab351b840f99aadc865c0fc913b65f9
[3/8] gpio: ppc44x: Use module platform driver helper for GPIO
      https://git.kernel.org/powerpc/c/f17b0ef8593d2c9f38197c396146b63e918e46fc
[4/8] gpio: ppc44x: Use platform resource helper for GPIO MMIO
      https://git.kernel.org/powerpc/c/8ab2d98f635f77132c9fca4e3983c53729ef52cf
[5/8] gpio: ppc44x: Convert GPIO to generic MMIO
      https://git.kernel.org/powerpc/c/714d445a1c8eeefc3167a0e1a6dc766cbc162e40
[6/8] gpio: ppc44x: drop PPC-specific IO helpers
      https://git.kernel.org/powerpc/c/595f5f25a96adb4ffec89e973756161c30753276
[7/8] gpio: ppc44x: fix undefined behavior in GPIO_MASK2 macro
      https://git.kernel.org/powerpc/c/9c4d539d112fb32355a403513023f08bd17360bc
[8/8] gpio: ppc44x: use dev_name() for chip label
      https://git.kernel.org/powerpc/c/98a39710fc8d9c70fcf9bacbb0cc802b0c1a0bbe

cheers

On Tue, Aug 4, 2026 at 12:35 AM Rosen Penev <rosenp@gmail.com> wrote:

> This series moves the ppc4xx GPIO driver from arch/powerpc to
> drivers/gpio, converts it to be a proper platform driver using
> generic MMIO helpers, drops architecture-specific accessors, and
> prepares it for module build and COMPILE_TEST.

Excellent patches!
Reviewed-by: Linus Walleij <linusw@kernel.org>

Yours,
Linus Walleij

On 8/7/26 3:45 AM, Linus Walleij wrote:
> On Tue, Aug 4, 2026 at 12:35 AM Rosen Penev <rosenp@gmail.com> wrote:
>
>> This series moves the ppc4xx GPIO driver from arch/powerpc to
>> drivers/gpio, converts it to be a proper platform driver using
>> generic MMIO helpers, drops architecture-specific accessors, and
>> prepares it for module build and COMPILE_TEST.
> Excellent patches!
> Reviewed-by: Linus Walleij <linusw@kernel.org>

I will take this via ppc tree.

Maddy


>
> Yours,
> Linus Walleij
>