[RFC 1/4] pinctrl: define PIN_CONFIG_INPUT

[AKASHI Takahiro]

This allows for enabling SCMI pinctrl based GPIO driver to obtain
an input gpio pin.

Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org>
---
 include/linux/pinctrl/pinconf-generic.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index d74b7a4ea154..842b328ea504 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -67,6 +67,8 @@ struct pinctrl_map;
  *	passed as argument. The argument is in mA.
  * @PIN_CONFIG_DRIVE_STRENGTH_UA: the pin will sink or source at most the current
  *	passed as argument. The argument is in uA.
+ * @PIN_CONFIG_INPUT: This will obtain a value on an input pin. The returned
+ *	argument indicates the value.
  * @PIN_CONFIG_INPUT_DEBOUNCE: this will configure the pin to debounce mode,
  *	which means it will wait for signals to settle when reading inputs. The
  *	argument gives the debounce time in usecs. Setting the
@@ -128,6 +130,7 @@ enum pin_config_param {
 	PIN_CONFIG_DRIVE_PUSH_PULL,
 	PIN_CONFIG_DRIVE_STRENGTH,
 	PIN_CONFIG_DRIVE_STRENGTH_UA,
+	PIN_CONFIG_INPUT,
 	PIN_CONFIG_INPUT_DEBOUNCE,
 	PIN_CONFIG_INPUT_ENABLE,
 	PIN_CONFIG_INPUT_SCHMITT,
-- 
2.34.1