From f8b52dd50ccdae7efc42ef54278f29d2f9d6cb36 Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Tue, 3 Jul 2018 09:18:14 +0800 Subject: gpio: mxc: Add clocks optional binding for imx gpio Some i.MX SoCs have GPIO clock gate in CCM, accessing GPIO registers needs to enable GPIO clock gate first, i.MX GPIO driver will enable clock gate if there is clock property in GPIO node of dtb, add optional property to i.MX GPIO binding doc. Signed-off-by: Anson Huang Reviewed-by: Fabio Estevam Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/devicetree/bindings/gpio') diff --git a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt index dbd22e0df21e..b4cd9f906c24 100644 --- a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt +++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt @@ -19,6 +19,9 @@ Required properties: 4 = active high level-sensitive. 8 = active low level-sensitive. +Optional properties: +- clocks: the clock for clocking the GPIO silicon + Example: gpio0: gpio@73f84000 { -- cgit v1.2.3