[PATCH] gpio: spacemit-k1: Use PDR for pin direction, not SDR/CDR

[Bartosz Golaszewski]

On Tue, 27 Jan 2026 10:58:49 +0800, Vivian Wang wrote:
> On the SpacemiT GPIO controller, the direction control register PDR is
> readable and writable [1]. Therefore, implement direction control by
> using PDR as dirout, and don't mark it as unreadable.
> 
> The original implementation, using SDR as dirout and CDR as dirin, is
> not actually a supported configuration by gpio-mmio. The hardware
> supports changing the direction of some pins atomically by writing a
> value with the corresponding bits set to SDR (set as output) or to CDR
> (set as input). However, gpio-mmio does not actually handle this.
> 
> [...]

Applied, thanks!

[1/1] gpio: spacemit-k1: Use PDR for pin direction, not SDR/CDR
      https://git.kernel.org/brgl/c/aa7e37fd770bafaaf856ab77735296955b93e377

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski at oss.qualcomm.com>