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Subject[PATCH 1/7] pinctrl: pinconf-generic: add drive strength parameter
Date
Some pin configurations IP allows to set the current output to the pin.
This patch adds such a parameter to the pinconf-generic mechanism.

This parameter takes as argument the drive strength in mA.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
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 47a1bdd..c533789 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -46,6 +46,8 @@
* @PIN_CONFIG_DRIVE_OPEN_SOURCE: the pin will be driven with open source
* (open emitter). Sending this config will enabale open drain mode, the
* argument is ignored.
+ * @PIN_CONFIG_DRIVE_STRENGTH: the pin will output the current passed as
+ * argument. The argument is in mA.
* @PIN_CONFIG_INPUT_SCHMITT_DISABLE: disable schmitt-trigger mode on the pin.
* @PIN_CONFIG_INPUT_SCHMITT: this will configure an input pin to run in
* schmitt-trigger mode. If the schmitt-trigger has adjustable hysteresis,
@@ -74,6 +76,7 @@ enum pin_config_param {
PIN_CONFIG_DRIVE_PUSH_PULL,
PIN_CONFIG_DRIVE_OPEN_DRAIN,
PIN_CONFIG_DRIVE_OPEN_SOURCE,
+ PIN_CONFIG_DRIVE_STRENGTH,
PIN_CONFIG_INPUT_SCHMITT_DISABLE,
PIN_CONFIG_INPUT_SCHMITT,
PIN_CONFIG_INPUT_DEBOUNCE,
--
1.7.10.4


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