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-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/pinctrl/mediatek,pinctrl-mt6795.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Mediatek MT6795 Pin Controller
-
-maintainers:
- - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
- - Sean Wang <sean.wang@kernel.org>
-
-description: |
- The Mediatek's Pin controller is used to control SoC pins.
-
-properties:
- compatible:
- const: mediatek,mt6795-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:
- description: GPIO valid number range.
- maxItems: 1
-
- reg:
- description:
- Physical address base for gpio base and eint registers.
- minItems: 2
-
- reg-names:
- items:
- - const: base
- - const: eint
-
- interrupt-controller: true
-
- '#interrupt-cells':
- const: 2
-
- interrupts:
- description: The interrupt outputs to sysirq.
- maxItems: 1
-
-# 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 = <PINMUX_GPIO0__FUNC_GPIO0>;
- }
- };
- /* GPIO45 set as multifunction SDA0 */
- i2c0-pins {
- pins {
- pinmux = <PINMUX_GPIO45__FUNC_SDA0>;
- }
- };
- };
- $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/<soc>-pinfunc.h
- directly.
-
- drive-strength:
- enum: [2, 4, 6, 8, 10, 12, 14, 16]
-
- bias-pull-down:
- oneOf:
- - type: boolean
- - enum: [100, 101, 102, 103]
- description: mt6795 pull down PUPD/R0/R1 type define value.
- description: |
- For normal pull down type, it is not necessary to specify R1R0
- values; When pull down type is PUPD/R0/R1, adding R1R0 defines
- will set different resistance values.
-
- bias-pull-up:
- oneOf:
- - type: boolean
- - enum: [100, 101, 102, 103]
- description: mt6795 pull up PUPD/R0/R1 type define value.
- description: |
- For normal pull up type, it is not necessary to specify R1R0
- values; When pull up type is PUPD/R0/R1, adding R1R0 defines
- will set different resistance values.
-
- bias-disable: true
-
- output-high: true
-
- output-low: true
-
- input-enable: true
-
- input-disable: true
-
- input-schmitt-enable: true
-
- input-schmitt-disable: true
-
- 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:
- 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.
- 3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [0, 1, 2, 3]
-
- 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:
- 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.
- 3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [0, 1, 2, 3]
-
- required:
- - pinmux
-
-allOf:
- - $ref: "pinctrl.yaml#"
-
-required:
- - compatible
- - reg
- - reg-names
- - interrupts
- - interrupt-controller
- - '#interrupt-cells'
- - gpio-controller
- - '#gpio-cells'
- - gpio-ranges
-
-additionalProperties: false
-
-examples:
- - |
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/interrupt-controller/irq.h>
- #include <dt-bindings/pinctrl/mt6795-pinfunc.h>
-
- soc {
- #address-cells = <2>;
- #size-cells = <2>;
-
- pio: pinctrl@10005000 {
- compatible = "mediatek,mt6795-pinctrl";
- reg = <0 0x10005000 0 0x1000>, <0 0x1000b000 0 0x1000>;
- reg-names = "base", "eint";
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&pio 0 0 196>;
- interrupt-controller;
- interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>;
- #interrupt-cells = <2>;
-
- i2c0-pins {
- pins-sda-scl {
- pinmux = <PINMUX_GPIO45__FUNC_SDA0>,
- <PINMUX_GPIO46__FUNC_SCL0>;
- };
- };
-
- mmc0-pins {
- pins-cmd-dat {
- pinmux = <PINMUX_GPIO154__FUNC_MSDC0_DAT0>,
- <PINMUX_GPIO155__FUNC_MSDC0_DAT1>,
- <PINMUX_GPIO156__FUNC_MSDC0_DAT2>,
- <PINMUX_GPIO157__FUNC_MSDC0_DAT3>,
- <PINMUX_GPIO158__FUNC_MSDC0_DAT4>,
- <PINMUX_GPIO159__FUNC_MSDC0_DAT5>,
- <PINMUX_GPIO160__FUNC_MSDC0_DAT6>,
- <PINMUX_GPIO161__FUNC_MSDC0_DAT7>,
- <PINMUX_GPIO162__FUNC_MSDC0_CMD>;
- input-enable;
- bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
- };
-
- pins-clk {
- pinmux = <PINMUX_GPIO163__FUNC_MSDC0_CLK>;
- bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
- };
-
- pins-rst {
- pinmux = <PINMUX_GPIO165__FUNC_MSDC0_RSTB>;
- bias-pull-up = <MTK_PUPD_SET_R1R0_10>;
- };
- };
- };
- };
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