From: Peng Fan <peng.fan@xxxxxxx> Add pinctrl binding doc for i.MX93 Signed-off-by: Peng Fan <peng.fan@xxxxxxx> --- .../bindings/pinctrl/fsl,imx93-pinctrl.yaml | 85 +++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,imx93-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx93-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,imx93-pinctrl.yaml new file mode 100644 index 000000000000..95c87ea4c5c8 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx93-pinctrl.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/fsl,imx93-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale IMX93 IOMUX Controller + +maintainers: + - Peng Fan <peng.fan@xxxxxxx> + +description: + Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory + for common binding part and usage. + +properties: + compatible: + const: fsl,imx93-iomuxc + + reg: + maxItems: 1 + +# Client device subnode's properties +patternProperties: + 'grp$': + type: object + description: + Pinctrl node's client devices use subnodes for desired pin configuration. + Client device subnodes use below standard properties. + + properties: + fsl,pins: + description: + each entry consists of 6 integers and represents the mux and config + setting for one pin. The first 5 integers <mux_reg conf_reg input_reg + mux_val input_val> are specified using a PIN_FUNC_ID macro, which can + be found in <arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h>. The last + integer CONFIG is the pad setting value like pull-up on this pin. Please + refer to i.MX8M Plus Reference Manual for detailed CONFIG settings. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + items: + - description: | + "mux_reg" indicates the offset of mux register. + - description: | + "conf_reg" indicates the offset of pad configuration register. + - description: | + "input_reg" indicates the offset of select input register. + - description: | + "mux_val" indicates the mux value to be applied. + - description: | + "input_val" indicates the select input value to be applied. + - description: | + "pad_setting" indicates the pad configuration value to be applied. + + + required: + - fsl,pins + + additionalProperties: false + +allOf: + - $ref: "pinctrl.yaml#" + +required: + - compatible + - reg + +additionalProperties: false + +examples: + # Pinmux controller node + - | + iomuxc: pinctrl@443c0000 { + compatible = "fsl,imx93-iomuxc"; + reg = <0x30330000 0x10000>; + + pinctrl_uart3: uart3grp { + fsl,pins = + <0x48 0x1f8 0x41c 0x1 0x0 0x49>, + <0x4c 0x1fc 0x418 0x1 0x0 0x49>; + }; + }; + +... -- 2.25.1
