| Message ID | 20250428235610.11324-1-ariel@simulevski.at |
|---|---|
| State | New |
| Headers | show |
| Series | pinctrl: intel: Document Tiger Lake reuse on some Alder Lake platforms | expand |
diff --git a/drivers/pinctrl/intel/Kconfig b/drivers/pinctrl/intel/Kconfig index 248c2e558ff3..b8e1436b04f7 100644 --- a/drivers/pinctrl/intel/Kconfig +++ b/drivers/pinctrl/intel/Kconfig @@ -54,6 +54,11 @@ config PINCTRL_ALDERLAKE This pinctrl driver provides an interface that allows configuring of Intel Alder Lake PCH pins and using them as GPIOs. + Note: On some Alder Lake platforms, including systems with + the PixArt I2C touchpad (PIXA3848), the hardware reuses + Tiger Lake style GPIO blocks. For proper device detection, + enabling CONFIG_PINCTRL_TIGERLAKE may be necessary. + config PINCTRL_BROXTON tristate "Intel Broxton pinctrl and GPIO driver" select PINCTRL_INTEL
Some Alder Lake systems, such as those using the PixArt I2C touchpad (PIXA3848), reuse GPIO IP blocks similar to Tiger Lake. As a result, enabling CONFIG_PINCTRL_TIGERLAKE may be required for proper I2C device detection. Document this in the Kconfig help text to assist users encountering this issue. Link: https://bugzilla.kernel.org/show_bug.cgi?id=220056 Signed-off-by: Ariel Simulevski <ariel@simulevski.at> --- drivers/pinctrl/intel/Kconfig | 5 +++++ 1 file changed, 5 insertions(+)