From: Jesse Taube <mr.bossman075@xxxxxxxxx> Add i.MXRT1050 pinctrl binding doc Cc: Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Jesse Taube <Mr.Bossman075@xxxxxxxxx> --- V1->V2: * Replace macros with values * Add tab for last pinctrl value --- .../bindings/pinctrl/fsl,imxrt1050.yaml | 83 +++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,imxrt1050.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1050.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1050.yaml new file mode 100644 index 000000000000..07e1afb15e54 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1050.yaml @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/fsl,imxrt-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale IMXRT1050 IOMUX Controller + +maintainers: + - Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxxxxxxxx> + - Jesse Taube <Mr.Bossman075@xxxxxxxxx> + +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,imxrt1050-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 <include/dt-bindings/pinctrl/pins-imxrt1050.h>. The last + integer CONFIG is the pad setting value like pull-up on this pin. Please + refer to i.MXRT1050 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 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + iomuxc: iomuxc@401f8000 { + compatible = "fsl,imxrt1050-iomuxc"; + reg = <0x401f8000 0x4000>; + fsl,mux_mask = <0x7>; + pinctrl-names = "default"; + imxrt1050-evk { + pinctrl_lpuart1: lpuart1grp { + fsl,pins = < + 0x0EC 0x2DC 0x000 0x2 0x0 0xf1 + 0x0F0 0x2E0 0x000 0x2 0x0 0xf1 + >; + }; + }; + }; -- 2.33.1
