From: Alexandre Belloni Date: Fri, 29 Mar 2013 23:51:12 +0000 (+0100) Subject: pinctrl: pinctrl-mxs: document the missing pull-ups X-Git-Tag: accepted/tizen/common/20141203.182822~2308^2~10^2~11 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d8880a126d96ba0f9e0191826431650c24711d47;p=platform%2Fkernel%2Flinux-arm64.git pinctrl: pinctrl-mxs: document the missing pull-ups Some pins on the i.mx23 and i.mx28 are missing pull-ups, document that oddity because it was difficult to know the expected behaviour. Signed-off-by: Alexandre Belloni Signed-off-by: Shawn Guo --- diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt index f7e8e8f..3077370 100644 --- a/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt @@ -70,6 +70,10 @@ Optional subnode-properties: 0: Disable the internal pull-up 1: Enable the internal pull-up +Note that when enabling the pull-up, the internal pad keeper gets disabled. +Also, some pins doesn't have a pull up, in that case, setting the fsl,pull-up +will only disable the internal pad keeper. + Examples: pinctrl@80018000 {