From 75889b3bb861385e7d03e9272ee4baaff608dcf6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Heiko=20St=C3=BCbner?= Date: Fri, 14 Jun 2013 17:42:49 +0200 Subject: pinctrl: clarify some dt pinconfig options The bias-pull-* options use values > 0 to indicate that the pull should be activated and optionally also indicate the strength of the pull. Therefore use an default value of 1 for these options. Split the low-power-mode option into low-power-enable and -disable. Update the documentation to describe the param arguments better. Reported-by: James Hogan Signed-off-by: Heiko Stuebner Signed-off-by: Linus Walleij (cherry picked from commit 9ee1f7d266aa1e2bfeb20cb5d4ac299c8e8ef8c7) Change-Id: I4ad03658500b7d54b8b067d79abecf3fc8b0bf70 Signed-off-by: Laxman Dewangan Reviewed-on: http://git-master/r/267329 GVS: Gerrit_Virtual_Submit --- .../bindings/pinctrl/pinctrl-bindings.txt | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt index ef7cd572214c..2d730e3dd496 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt @@ -158,9 +158,29 @@ input-schmitt - run in schmitt-trigger mode with hysteresis X input-debounce - debounce mode with debound time X power-source - select power source X slew-rate - use slew-rate X -low-power-mode - low power mode +low-power-enable - enable low power mode +low-power-disable - disable low power mode output-low - set the pin to output mode with low level output-high - set the pin to output mode with high level +Arguments for parameters: + +- bias-pull-up, -down and -pin-default take as optional argument 0 to disable + the pull, on hardware supporting it the pull strength in Ohm. bias-disable + will also disable any active pull. + +- drive-strength takes as argument the target strength in mA. + +- input-schmitt takes as argument the adjustable hysteresis in a + driver-specific format + +- input-debounce takes the debounce time as argument or 0 to disable debouncing + +- power-source argument is the custom value describing the source to select + +- slew-rate takes as argument the target rate in a driver-specific format + +All parameters not listed here, do not take an argument. + More in-depth documentation on these parameters can be found in -- cgit v1.2.3