diff options
Diffstat (limited to 'dts/Bindings/pinctrl/mediatek,mt6779-pinctrl.yaml')
| -rw-r--r-- | dts/Bindings/pinctrl/mediatek,mt6779-pinctrl.yaml | 129 |
1 files changed, 90 insertions, 39 deletions
diff --git a/dts/Bindings/pinctrl/mediatek,mt6779-pinctrl.yaml b/dts/Bindings/pinctrl/mediatek,mt6779-pinctrl.yaml index 152c151c27..3bbc00df55 100644 --- a/dts/Bindings/pinctrl/mediatek,mt6779-pinctrl.yaml +++ b/dts/Bindings/pinctrl/mediatek,mt6779-pinctrl.yaml @@ -4,56 +4,47 @@ $id: http://devicetree.org/schemas/pinctrl/mediatek,mt6779-pinctrl.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Mediatek MT6779 Pin Controller Device Tree Bindings +title: MediaTek MT6779 Pin Controller maintainers: - Andy Teng <andy.teng@mediatek.com> + - Sean Wang <sean.wang@kernel.org> -description: |+ - The pin controller node should be the child of a syscon node with the - required property: - - compatible: "syscon" +description: + The MediaTek pin controller on MT6779 is used to control pin functions, pull + up/down resistance and drive strength options. properties: compatible: - const: mediatek,mt6779-pinctrl + enum: + - mediatek,mt6779-pinctrl + - mediatek,mt6797-pinctrl reg: - minItems: 9 - maxItems: 9 - - reg-names: - items: - - const: "gpio" - - const: "iocfg_rm" - - const: "iocfg_br" - - const: "iocfg_lm" - - const: "iocfg_lb" - - const: "iocfg_rt" - - const: "iocfg_lt" - - const: "iocfg_tl" - - const: "eint" + description: Physical addresses for GPIO base(s) and EINT registers. + + reg-names: true gpio-controller: true "#gpio-cells": const: 2 - description: | - Number of cells in GPIO specifier. Since the generic GPIO - binding is used, the amount of cells must be specified as 2. See the below - mentioned gpio binding representation for description of particular cells. + description: + Number of cells in GPIO specifier. Since the generic GPIO binding is used, + the amount of cells must be specified as 2. See the below mentioned gpio + binding representation for description of particular cells. gpio-ranges: minItems: 1 maxItems: 5 - description: | + description: GPIO valid number range. interrupt-controller: true interrupts: maxItems: 1 - description: | + description: Specifies the summary IRQ. "#interrupt-cells": @@ -65,30 +56,82 @@ required: - reg-names - gpio-controller - "#gpio-cells" - - gpio-ranges - - interrupt-controller - - interrupts - - "#interrupt-cells" + +allOf: + - $ref: pinctrl.yaml# + - if: + properties: + compatible: + contains: + const: mediatek,mt6779-pinctrl + then: + properties: + reg: + minItems: 9 + maxItems: 9 + + reg-names: + items: + - const: gpio + - const: iocfg_rm + - const: iocfg_br + - const: iocfg_lm + - const: iocfg_lb + - const: iocfg_rt + - const: iocfg_lt + - const: iocfg_tl + - const: eint + - if: + properties: + compatible: + contains: + const: mediatek,mt6797-pinctrl + then: + properties: + reg: + minItems: 5 + maxItems: 5 + + reg-names: + items: + - const: gpio + - const: iocfgl + - const: iocfgb + - const: iocfgr + - const: iocfgt + - if: + properties: + reg-names: + contains: + const: eint + then: + required: + - interrupts + - interrupt-controller + - "#interrupt-cells" patternProperties: '-[0-9]*$': type: object + additionalProperties: false + patternProperties: '-pins*$': type: object - description: | + description: A pinctrl node should contain at least one subnodes representing the pinctrl groups available on the machine. Each subnode will list the pins it needs, and how they should be configured, with regard to muxer - configuration, pullups, drive strength, input enable/disable and input schmitt. - $ref: "/schemas/pinctrl/pincfg-node.yaml" + configuration, pullups, drive strength, input enable/disable and input + schmitt. + $ref: /schemas/pinctrl/pincfg-node.yaml properties: pinmux: description: - integer array, represents gpio pin number and mux setting. - Supported pin number and mux varies for different SoCs, and are defined - as macros in boot/dts/<soc>-pinfunc.h directly. + Integer array, represents gpio pin number and mux setting. + Supported pin number and mux varies for different SoCs, and are + defined as macros in dt-bindings/pinctrl/<soc>-pinfunc.h directly. bias-disable: true @@ -108,10 +151,17 @@ patternProperties: input-schmitt-disable: true + drive-strength: + enum: [2, 4, 8, 12, 16] + + slew-rate: + enum: [0, 1] + mediatek,pull-up-adv: description: | - Pull up setings for 2 pull resistors, R0 and R1. User can - configure those special pins. Valid arguments are described as below: + Pull up settings for 2 pull resistors, R0 and R1. User can + configure those special pins. Valid arguments are described as + below: 0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled. 1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled. 2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled. @@ -122,7 +172,8 @@ patternProperties: mediatek,pull-down-adv: description: | Pull down settings for 2 pull resistors, R0 and R1. User can - configure those special pins. Valid arguments are described as below: + configure those special pins. Valid arguments are described as + below: 0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled. 1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled. 2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled. |