From 31d610f19670825a0058b70f44570e9ab21a0011 Mon Sep 17 00:00:00 2001 From: Markus Pargmann Date: Mon, 11 Nov 2013 19:19:47 +0100 Subject: pinctrl: imx1-core populate subdevices Support gpio devicetree subnodes to allow a more detailed DT hardware description. Signed-off-by: Markus Pargmann Signed-off-by: Linus Walleij --- .../bindings/pinctrl/fsl,imx27-pinctrl.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt') diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt index 353eca0efbf8..d1706ea82572 100644 --- a/Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt @@ -52,12 +52,25 @@ Required properties for pin configuration node: CONFIG can be 0 or 1, meaning Pullup disable/enable. +The iomux controller has gpio child nodes which are embedded in the iomux +control registers. They have to be defined as child nodes of the iomux device +node. If gpio subnodes are defined "#address-cells", "#size-cells" and "ranges" +properties for the iomux device node are required. Example: iomuxc: iomuxc@10015000 { compatible = "fsl,imx27-iomuxc"; reg = <0x10015000 0x600>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + gpio1: gpio@10015000 { + ... + }; + + ... uart { pinctrl_uart1: uart-1 { @@ -83,6 +96,15 @@ The above example using macros: iomuxc: iomuxc@10015000 { compatible = "fsl,imx27-iomuxc"; reg = <0x10015000 0x600>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + gpio1: gpio@10015000 { + ... + }; + + ... uart { pinctrl_uart1: uart-1 { -- cgit