From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- .../bindings/pinctrl/mediatek,mt8186-pinctrl.yaml | 275 +++++++++++++++++++++ 1 file changed, 275 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/mediatek,mt8186-pinctrl.yaml (limited to 'Documentation/devicetree/bindings/pinctrl/mediatek,mt8186-pinctrl.yaml') diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8186-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8186-pinctrl.yaml new file mode 100644 index 0000000000..69136ddd0b --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8186-pinctrl.yaml @@ -0,0 +1,275 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/mediatek,mt8186-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT8186 Pin Controller + +maintainers: + - Sean Wang + +description: + The MediaTek's MT8186 Pin controller is used to control SoC pins. + +properties: + compatible: + const: mediatek,mt8186-pinctrl + + gpio-controller: true + + '#gpio-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. + const: 2 + + gpio-ranges: + maxItems: 1 + + gpio-line-names: true + + reg: + description: + Physical address base for GPIO base registers. There are 8 different GPIO + physical address base in mt8186. + maxItems: 8 + + reg-names: + description: + GPIO base register names. + items: + - const: iocfg0 + - const: iocfg_lt + - const: iocfg_lm + - const: iocfg_lb + - const: iocfg_bl + - const: iocfg_rb + - const: iocfg_rt + - const: eint + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + + interrupts: + description: The interrupt outputs to sysirq + maxItems: 1 + + mediatek,rsel-resistance-in-si-unit: + type: boolean + description: + Identifying i2c pins pull up/down type which is RSEL. It can support RSEL + define or si unit value(ohm) to set different resistance. + +# PIN CONFIGURATION NODES +patternProperties: + '-pins$': + type: object + additionalProperties: false + patternProperties: + '^pins': + type: object + 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. + An example of using macro: + pincontroller { + /* GPIO0 set as multifunction GPIO0 */ + gpio-pins { + pins { + pinmux = ; + } + }; + /* GPIO128 set as multifunction SDA0 */ + i2c0-pins { + pins { + pinmux = ; + } + }; + }; + $ref: pinmux-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 dt-bindings/pinctrl/-pinfunc.h directly. + + drive-strength: + enum: [2, 4, 6, 8, 10, 12, 14, 16] + + drive-strength-microamp: + enum: [125, 250, 500, 1000] + + bias-pull-down: + oneOf: + - type: boolean + - enum: [100, 101, 102, 103] + description: mt8186 pull down PUPD/R0/R1 type define value. + - enum: [200, 201, 202, 203] + description: mt8186 pull down RSEL type define value. + - enum: [75000, 5000] + description: mt8186 pull down RSEL type si unit value(ohm). + description: | + For pull down type is normal, it don't need add RSEL & R1R0 define + and resistance value. + For pull down type is PUPD/R0/R1 type, it can add R1R0 define to + set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & + "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & + "MTK_PUPD_SET_R1R0_11" define in mt8186. + For pull down type is RSEL, it can add RSEL define & resistance + value(ohm) to set different resistance by identifying property + "mediatek,rsel-resistance-in-si-unit". + It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" & + "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" define in + mt8186. It can also support resistance value(ohm) "75000" & "5000" + in mt8186. + An example of using RSEL define: + pincontroller { + i2c0_pin { + pins { + pinmux = ; + bias-pull-down = ; + } + }; + }; + An example of using si unit resistance value(ohm): + &pio { + mediatek,rsel-resistance-in-si-unit; + } + pincontroller { + i2c0_pin { + pins { + pinmux = ; + bias-pull-down = <75000>; + } + }; + }; + + bias-pull-up: + oneOf: + - type: boolean + - enum: [100, 101, 102, 103] + description: mt8186 pull up PUPD/R0/R1 type define value. + - enum: [200, 201, 202, 203] + description: mt8186 pull up RSEL type define value. + - enum: [1000, 5000, 10000, 75000] + description: mt8186 pull up RSEL type si unit value(ohm). + description: | + For pull up type is normal, it don't need add RSEL & R1R0 define + and resistance value. + For pull up type is PUPD/R0/R1 type, it can add R1R0 define to + set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & + "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & + "MTK_PUPD_SET_R1R0_11" define in mt8186. + For pull up type is RSEL, it can add RSEL define & resistance + value(ohm) to set different resistance by identifying property + "mediatek,rsel-resistance-in-si-unit". + It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" & + "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" define in + mt8186. It can also support resistance value(ohm) "1000" & "5000" + & "10000" & "75000" in mt8186. + An example of using si unit resistance value(ohm): + &pio { + mediatek,rsel-resistance-in-si-unit; + } + pincontroller { + i2c0-pins { + pins { + pinmux = ; + bias-pull-up = <1000>; + } + }; + }; + + 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 + #include + + pio: pinctrl@10005000 { + compatible = "mediatek,mt8186-pinctrl"; + reg = <0x10005000 0x1000>, + <0x10002000 0x0200>, + <0x10002200 0x0200>, + <0x10002400 0x0200>, + <0x10002600 0x0200>, + <0x10002A00 0x0200>, + <0x10002c00 0x0200>, + <0x1000b000 0x1000>; + reg-names = "iocfg0", "iocfg_lt", "iocfg_lm", + "iocfg_lb", "iocfg_bl", "iocfg_rb", + "iocfg_rt", "eint"; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pio 0 0 185>; + interrupt-controller; + interrupts = ; + #interrupt-cells = <2>; + + pio-pins { + pins { + pinmux = ; + output-low; + }; + }; + + spi0-pins { + pins-spi { + pinmux = , + , + ; + bias-disable; + }; + pins-spi-mi { + pinmux = ; + bias-pull-down; + }; + }; + + i2c0-pins { + pins { + pinmux = , + ; + bias-pull-up = ; + drive-strength-microamp = <1000>; + }; + }; + }; -- cgit v1.2.3