diff options
| author | Markus Pargmann <mpa@pengutronix.de> | 2013-11-11 19:19:47 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-11-25 09:08:30 +0100 |
| commit | 31d610f19670825a0058b70f44570e9ab21a0011 (patch) | |
| tree | 875478feb2815006f39dbc8405eaa686d78ba67b /Documentation/devicetree | |
| parent | pinctrl: imx: drop redundant OF dependency (diff) | |
| download | linux-31d610f19670825a0058b70f44570e9ab21a0011.tar.xz linux-31d610f19670825a0058b70f44570e9ab21a0011.zip | |
pinctrl: imx1-core populate subdevices
Support gpio devicetree subnodes to allow a more detailed DT hardware
description.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt | 22 |
1 files changed, 22 insertions, 0 deletions
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 { |