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| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/mediatek,mt6858-pinctrl.yaml | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6858-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6858-pinctrl.yaml new file mode 100644 index 000000000000..9b834e87afde --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6858-pinctrl.yaml @@ -0,0 +1,190 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/mediatek,mt6858-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT6858 Pin Controller + +maintainers: + - Nikolai Burov <nikolai.burov@jolla.com> + +description: + The MediaTek's MT6858 Pin controller is used to control SoC pins. + +properties: + compatible: + const: mediatek,mt6858-pinctrl + + reg: + items: + - description: gpio base + - description: lm group IO + - description: rb group IO + - description: bm2 group IO + - description: bm group IO + - description: bm1 group IO + - description: lt group IO + - description: lt1 group IO + - description: rt group IO + - description: rt1 group IO + - description: eint south group IO + - description: eint west group IO + - description: eint east group IO + - description: eint center group IO + + reg-names: + items: + - const: base + - const: lm + - const: rb + - const: bm2 + - const: bm + - const: bm1 + - const: lt + - const: lt1 + - const: rt + - const: rt1 + - const: eint0 + - const: eint1 + - const: eint2 + - const: eint3 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + + gpio-controller: true + + '#gpio-cells': + const: 2 + + gpio-ranges: + maxItems: 1 + + gpio-line-names: true + +# PIN CONFIGURATION NODES +patternProperties: + '-pins$': + type: object + additionalProperties: false + + patternProperties: + '^pins': + type: object + $ref: /schemas/pinctrl/pincfg-node.yaml + additionalProperties: false + 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. + + 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 arch/arm64/boot/dts/mediatek/mt6858-pinfunc.h + for this SoC. + + drive-strength: + enum: [2, 4, 6, 8, 10, 12, 14, 16] + + bias-pull-down: + oneOf: + - type: boolean + description: normal pull down. + - enum: [100, 101, 102, 103] + description: PUPD/R1/R0 pull down type. See MTK_PUPD_SET_R1R0_ + defines in dt-bindings/pinctrl/mt65xx.h. + - enum: [200, 201, 202, 203] + description: RSEL pull down type. See MTK_PULL_SET_RSEL_ defines + in dt-bindings/pinctrl/mt65xx.h. + + bias-pull-up: + oneOf: + - type: boolean + description: normal pull up. + - enum: [100, 101, 102, 103] + description: PUPD/R1/R0 pull up type. See MTK_PUPD_SET_R1R0_ + defines in dt-bindings/pinctrl/mt65xx.h. + - enum: [200, 201, 202, 203] + description: RSEL pull up type. See MTK_PULL_SET_RSEL_ defines + in dt-bindings/pinctrl/mt65xx.h. + + bias-disable: true + + output-high: true + + output-low: true + + input-enable: true + + input-disable: true + + input-schmitt-enable: true + + input-schmitt-disable: true + + required: + - pinmux + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - '#interrupt-cells' + - gpio-controller + - '#gpio-cells' + - gpio-ranges + +additionalProperties: false + +examples: + - | + #include <dt-bindings/pinctrl/mt65xx.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #define PINMUX_GPIO149__FUNC_SCL5 (MTK_PIN_NO(149) | 1) + #define PINMUX_GPIO150__FUNC_SDA5 (MTK_PIN_NO(150) | 1) + + pio: pinctrl@10005000 { + compatible = "mediatek,mt6858-pinctrl"; + reg = <0x10005000 0x1000>, + <0x11b20000 0x1000>, + <0x11c10000 0x1000>, + <0x11d10000 0x1000>, + <0x11d30000 0x1000>, + <0x11d40000 0x1000>, + <0x11e20000 0x1000>, + <0x11e30000 0x1000>, + <0x11ed0000 0x1000>, + <0x11ee0000 0x1000>, + <0x11b00000 0x1000>, + <0x11e60000 0x1000>, + <0x11e80000 0x1000>, + <0x1c01e000 0x1000>; + reg-names = "base", "lm", "rb", "bm2", "bm", "bm1", "lt", "lt1", + "rt", "rt1", "eint0", "eint1", "eint2", "eint3"; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pio 0 0 197>; + interrupt-controller; + interrupts = <GIC_SPI 239 IRQ_TYPE_LEVEL_HIGH 0>; + #interrupt-cells = <2>; + + i2c5-pins { + pins { + pinmux = <PINMUX_GPIO149__FUNC_SCL5>, + <PINMUX_GPIO150__FUNC_SDA5>; + bias-disable; + }; + }; + }; |