From f868ef995b32f0f08d7b6ce700bbe25de3ad65ac Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Tue, 8 Jan 2013 22:43:12 +0100
Subject: [PATCH] pinctrl: pinconf-generic: add drive strength parameter
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>
---
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 b23d99da3b4b..40d7bb9c7562 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,
@@ -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,
--
2.34.1