From: Jonathan Neuschäfer Date: Tue, 29 Jan 2019 16:55:28 +0000 (+0100) Subject: dt-bindings: pinctrl: Document the i.MX50 IOMUXC binding X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=dcab77888da978a1853158ff86b93b5cf7f07d25;p=linux.git dt-bindings: pinctrl: Document the i.MX50 IOMUXC binding AFAICS from the i.MX50 Reference Manual, the i.MX50 IOMUXC works the same as the one in i.MX51, so I copied fsl,imx51-pinctrl.txt and changed the text to imx50. Signed-off-by: Jonathan Neuschäfer Cc: Dong Aisheng Cc: Shawn Guo Reviewed-by: Fabio Estevam Signed-off-by: Linus Walleij --- diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx50-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx50-pinctrl.txt new file mode 100644 index 0000000000000..6da01d619d33e --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx50-pinctrl.txt @@ -0,0 +1,32 @@ +* Freescale IMX50 IOMUX Controller + +Please refer to fsl,imx-pinctrl.txt in this directory for common binding part +and usage. + +Required properties: +- compatible: "fsl,imx50-iomuxc" +- fsl,pins: two integers array, represents a group of pins mux and config + setting. The format is fsl,pins = , PIN_FUNC_ID is a + pin working on a specific function, CONFIG is the pad setting value like + pull-up for this pin. Please refer to imx50 datasheet for the valid pad + config settings. + +CONFIG bits definition: +PAD_CTL_HVE (1 << 13) +PAD_CTL_HYS (1 << 8) +PAD_CTL_PKE (1 << 7) +PAD_CTL_PUE (1 << 6) +PAD_CTL_PUS_100K_DOWN (0 << 4) +PAD_CTL_PUS_47K_UP (1 << 4) +PAD_CTL_PUS_100K_UP (2 << 4) +PAD_CTL_PUS_22K_UP (3 << 4) +PAD_CTL_ODE (1 << 3) +PAD_CTL_DSE_LOW (0 << 1) +PAD_CTL_DSE_MED (1 << 1) +PAD_CTL_DSE_HIGH (2 << 1) +PAD_CTL_DSE_MAX (3 << 1) +PAD_CTL_SRE_FAST (1 << 0) +PAD_CTL_SRE_SLOW (0 << 0) + +Refer to imx50-pinfunc.h in device tree source folder for all available +imx50 PIN_FUNC_ID.