dt-bindings: pinctrl: aspeed: Convert AST2400 bindings to json-schema

=============================

Aspeed AST2400 Pin Controller

=============================

Required properties for the AST2400:

- compatible : 			Should be one of the following:

				"aspeed,ast2400-pinctrl"

				"aspeed,g4-pinctrl"

The pin controller node should be the child of a syscon node with the required

property:

- compatible : 		Should be one of the following:

			"aspeed,ast2400-scu", "syscon", "simple-mfd"

			"aspeed,g4-scu", "syscon", "simple-mfd"

Refer to the the bindings described in

Documentation/devicetree/bindings/mfd/syscon.txt

Subnode Format

==============

The required properties of pinmux child nodes are:

- function: the mux function to select

- groups  : the list of groups to select with this function

Required properties of pinconf child nodes are:

- groups: A list of groups to select (either this or "pins" must be

          specified)

- pins  : A list of ball names as strings, eg "D14" (either this or "groups"

          must be specified)

Optional properties of pinconf child nodes are:

- bias-disable  : disable any pin bias

- bias-pull-down: pull down the pin

- drive-strength: sink or source at most X mA

Definitions are as specified in

Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt, with any

further limitations as described above.

For pinmux, each mux function has only one associated pin group. Each group is

named by its function. The following values for the function and groups

properties are supported:

ACPI ADC0 ADC1 ADC10 ADC11 ADC12 ADC13 ADC14 ADC15 ADC2 ADC3 ADC4 ADC5 ADC6

ADC7 ADC8 ADC9 BMCINT DDCCLK DDCDAT EXTRST FLACK FLBUSY FLWP GPID GPID0 GPID2

GPID4 GPID6 GPIE0 GPIE2 GPIE4 GPIE6 I2C10 I2C11 I2C12 I2C13 I2C14 I2C3 I2C4

I2C5 I2C6 I2C7 I2C8 I2C9 LPCPD LPCPME LPCRST LPCSMI MAC1LINK MAC2LINK MDIO1

MDIO2 NCTS1 NCTS2 NCTS3 NCTS4 NDCD1 NDCD2 NDCD3 NDCD4 NDSR1 NDSR2 NDSR3 NDSR4

NDTR1 NDTR2 NDTR3 NDTR4 NDTS4 NRI1 NRI2 NRI3 NRI4 NRTS1 NRTS2 NRTS3 OSCCLK PWM0

PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 RGMII1 RGMII2 RMII1 RMII2 ROM16 ROM8 ROMCS1

ROMCS2 ROMCS3 ROMCS4 RXD1 RXD2 RXD3 RXD4 SALT1 SALT2 SALT3 SALT4 SD1 SD2 SGPMCK

SGPMI SGPMLD SGPMO SGPSCK SGPSI0 SGPSI1 SGPSLD SIOONCTRL SIOPBI SIOPBO SIOPWREQ

SIOPWRGD SIOS3 SIOS5 SIOSCI SPI1 SPI1DEBUG SPI1PASSTHRU SPICS1 TIMER3 TIMER4

TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD2 TXD3 TXD4 UART6 USB11D1 USB11H2 USB2D1

USB2H1 USBCKI VGABIOS_ROM VGAHS VGAVS VPI18 VPI24 VPI30 VPO12 VPO24 WDTRST1

WDTRST2

Example

=======

syscon: scu@1e6e2000 {

	compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";

	reg = <0x1e6e2000 0x1a8>;

	pinctrl: pinctrl {

		compatible = "aspeed,g4-pinctrl";

		pinctrl_i2c3_default: i2c3_default {

			function = "I2C3";

			groups = "I2C3";

		};

		pinctrl_gpioh0_unbiased_default: gpioh0 {

			pins = "A8";

			bias-disable;

		};

	};

};

# SPDX-License-Identifier: GPL-2.0-or-later

%YAML 1.2

---

$id: http://devicetree.org/schemas/pinctrl/aspeed,ast2400-pinctrl.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ASPEED AST2400 Pin Controller

maintainers:

  - Andrew Jeffery <andrew@aj.id.au>

description: |+

  The pin controller node should be the child of a syscon node with the

  required property:

  - compatible:     Should be one of the following:

                    "aspeed,ast2400-scu", "syscon", "simple-mfd"

                    "aspeed,g4-scu", "syscon", "simple-mfd"

  Refer to the the bindings described in

  Documentation/devicetree/bindings/mfd/syscon.txt

properties:

  compatible:

    enum: [ aspeed,ast2400-pinctrl, aspeed,g4-pinctrl ]

patternProperties:

  '^.*$':

    if:

      type: object

    then:

      patternProperties:

        "^function|groups$":

          allOf:

            - $ref: "/schemas/types.yaml#/definitions/string"

            - enum: [ "ACPI", "ADC0", "ADC1", "ADC10", "ADC11", "ADC12", "ADC13",

              "ADC14", "ADC15", "ADC2", "ADC3", "ADC4", "ADC5", "ADC6", "ADC7",

              "ADC8", "ADC9", "BMCINT", "DDCCLK", "DDCDAT", "EXTRST", "FLACK",

              "FLBUSY", "FLWP", "GPID", "GPID0", "GPID2", "GPID4", "GPID6",

              "GPIE0", "GPIE2", "GPIE4", "GPIE6", "I2C10", "I2C11", "I2C12",

              "I2C13", "I2C14", "I2C3", "I2C4", "I2C5", "I2C6", "I2C7", "I2C8",

              "I2C9", "LPCPD", "LPCPME", "LPCRST", "LPCSMI", "MAC1LINK",

              "MAC2LINK", "MDIO1", "MDIO2", "NCTS1", "NCTS2", "NCTS3", "NCTS4",

              "NDCD1", "NDCD2", "NDCD3", "NDCD4", "NDSR1", "NDSR2", "NDSR3",

              "NDSR4", "NDTR1", "NDTR2", "NDTR3", "NDTR4", "NDTS4", "NRI1",

              "NRI2", "NRI3", "NRI4", "NRTS1", "NRTS2", "NRTS3", "OSCCLK",

              "PWM0", "PWM1", "PWM2", "PWM3", "PWM4", "PWM5", "PWM6", "PWM7",

              "RGMII1", "RGMII2", "RMII1", "RMII2", "ROM16", "ROM8", "ROMCS1",

              "ROMCS2", "ROMCS3", "ROMCS4", "RXD1", "RXD2", "RXD3", "RXD4",

              "SALT1", "SALT2", "SALT3", "SALT4", "SD1", "SD2", "SGPMCK",

              "SGPMI", "SGPMLD", "SGPMO", "SGPSCK", "SGPSI0", "SGPSI1", "SGPSLD",

              "SIOONCTRL", "SIOPBI", "SIOPBO", "SIOPWREQ", "SIOPWRGD", "SIOS3",

              "SIOS5", "SIOSCI", "SPI1", "SPI1DEBUG", "SPI1PASSTHRU", "SPICS1",

              "TIMER3", "TIMER4", "TIMER5", "TIMER6", "TIMER7", "TIMER8", "TXD1",

              "TXD2", "TXD3", "TXD4", "UART6", "USB11D1", "USB11H2", "USB2D1",

              "USB2H1", "USBCKI", "VGABIOS_ROM", "VGAHS", "VGAVS", "VPI18",

              "VPI24", "VPI30", "VPO12", "VPO24", "WDTRST1", "WDTRST2" ]

required:

  - compatible

examples:

  - |

    syscon: scu@1e6e2000 {

        compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";

        reg = <0x1e6e2000 0x1a8>;

        pinctrl: pinctrl {

            compatible = "aspeed,g4-pinctrl";

            pinctrl_i2c3_default: i2c3_default {

                function = "I2C3";

                groups = "I2C3";

            };

            pinctrl_gpioh0_unbiased_default: gpioh0 {

                pins = "A8";

                bias-disable;

            };

        };

    };