From d8880a126d96ba0f9e0191826431650c24711d47 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Sat, 30 Mar 2013 00:51:12 +0100 Subject: [PATCH] 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 --- Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt index f7e8e8f4d9a3..3077370c89af 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 { -- 2.39.5