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pinctrl: pinconf-generic: add drive strength parameter

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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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Maxime Ripard 2013-01-08 22:43:12 +01:00 committed by Linus Walleij
parent b6ae7a2653
commit f868ef995b
1 changed files with 3 additions and 0 deletions
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3
include/linux/pinctrl/pinconf-generic.h
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@ -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,
@ -76,6 +78,7 @@ 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,