dt-bindings: pinctrl: aspeed: Document AST2600 pinmux

The AST260 differs from the 2400 and 2500 in that it supports multiple
groups for a subset of functions.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20190729055604.13239-2-andrew@aj.id.auReviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml

+# SPDX-License-Identifier: GPL-2.0+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/aspeed,ast2600-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASPEED AST2600 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,ast2600-scu", "syscon", "simple-mfd"
+
+  Refer to the the bindings described in
+  Documentation/devicetree/bindings/mfd/syscon.txt
+
+properties:
+  compatible:
+    const: aspeed,ast2600-pinctrl
+
+patternProperties:
+  '^.*$':
+    if:
+      type: object
+    then:
+      properties:
+        function:
+          allOf:
+            - $ref: "/schemas/types.yaml#/definitions/string"
+            - enum: [ ADC0, ADC1, ADC10, ADC11, ADC12, ADC13, ADC14, ADC15,
+              ADC2, ADC3, ADC4, ADC5, ADC6, ADC7, ADC8, ADC9, BMCINT, ESPI,
+              ESPIALT, FSI1, FSI2, FWSPIABR, FWSPID, FWSPIWP, GPIT0, GPIT1,
+              GPIT2, GPIT3, GPIT4, GPIT5, GPIT6, GPIT7, GPIU0, GPIU1, GPIU2,
+              GPIU3, GPIU4, GPIU5, GPIU6, GPIU7, I2C1, I2C10, I2C11, I2C12,
+              I2C13, I2C14, I2C15, I2C16, I2C2, I2C3, I2C4, I2C5, I2C6, I2C7,
+              I2C8, I2C9, I3C3, I3C4, I3C5, I3C6, JTAGM, LHPD, LHSIRQ, LPC,
+              LPCHC, LPCPD, LPCPME, LPCSMI, LSIRQ, MACLINK1, MACLINK2,
+              MACLINK3, MACLINK4, MDIO1, MDIO2, MDIO3, MDIO4, NCTS1, NCTS2,
+              NCTS3, NCTS4, NDCD1, NDCD2, NDCD3, NDCD4, NDSR1, NDSR2, NDSR3,
+              NDSR4, NDTR1, NDTR2, NDTR3, NDTR4, NRI1, NRI2, NRI3, NRI4, NRTS1,
+              NRTS2, NRTS3, NRTS4, OSCCLK, PEWAKE, PWM0, PWM1, PWM10, PWM11,
+              PWM12, PWM13, PWM14, PWM15, PWM2, PWM3, PWM4, PWM5, PWM6, PWM7,
+              PWM8, PWM9, RGMII1, RGMII2, RGMII3, RGMII4, RMII1, RMII2, RMII3,
+              RMII4, RXD1, RXD2, RXD3, RXD4, SALT1, SALT10, SALT11, SALT12,
+              SALT13, SALT14, SALT15, SALT16, SALT2, SALT3, SALT4, SALT5,
+              SALT6, SALT7, SALT8, SALT9, SD1, SD2, SD3, SD3DAT4, SD3DAT5,
+              SD3DAT6, SD3DAT7, SGPM1, SGPS1, SIOONCTRL, SIOPBI, SIOPBO,
+              SIOPWREQ, SIOPWRGD, SIOS3, SIOS5, SIOSCI, SPI1, SPI1ABR, SPI1CS1,
+              SPI1WP, SPI2, SPI2CS1, SPI2CS2, TACH0, TACH1, TACH10, TACH11,
+              TACH12, TACH13, TACH14, TACH15, TACH2, TACH3, TACH4, TACH5,
+              TACH6, TACH7, TACH8, TACH9, THRU0, THRU1, THRU2, THRU3, TXD1,
+              TXD2, TXD3, TXD4, UART10, UART11, UART12, UART13, UART6, UART7,
+              UART8, UART9, VB, VGAHS, VGAVS, WDTRST1, WDTRST2, WDTRST3,
+              WDTRST4, ]
+        groups:
+          allOf:
+            - $ref: "/schemas/types.yaml#/definitions/string"
+            - enum: [ ADC0, ADC1, ADC10, ADC11, ADC12, ADC13, ADC14, ADC15,
+              ADC2, ADC3, ADC4, ADC5, ADC6, ADC7, ADC8, ADC9, BMCINT, ESPI,
+              ESPIALT, FSI1, FSI2, FWSPIABR, FWSPID, FWQSPID, FWSPIWP, GPIT0,
+              GPIT1, GPIT2, GPIT3, GPIT4, GPIT5, GPIT6, GPIT7, GPIU0, GPIU1,
+              GPIU2, GPIU3, GPIU4, GPIU5, GPIU6, GPIU7, HVI3C3, HVI3C4, I2C1,
+              I2C10, I2C11, I2C12, I2C13, I2C14, I2C15, I2C16, I2C2, I2C3,
+              I2C4, I2C5, I2C6, I2C7, I2C8, I2C9, I3C3, I3C4, I3C5, I3C6,
+              JTAGM, LHPD, LHSIRQ, LPC, LPCHC, LPCPD, LPCPME, LPCSMI, LSIRQ,
+              MACLINK1, MACLINK2, MACLINK3, MACLINK4, MDIO1, MDIO2, MDIO3,
+              MDIO4, NCTS1, NCTS2, NCTS3, NCTS4, NDCD1, NDCD2, NDCD3, NDCD4,
+              NDSR1, NDSR2, NDSR3, NDSR4, NDTR1, NDTR2, NDTR3, NDTR4, NRI1,
+              NRI2, NRI3, NRI4, NRTS1, NRTS2, NRTS3, NRTS4, OSCCLK, PEWAKE,
+              PWM0, PWM1, PWM10G0, PWM10G1, PWM11G0, PWM11G1, PWM12G0, PWM12G1,
+              PWM13G0, PWM13G1, PWM14G0, PWM14G1, PWM15G0, PWM15G1, PWM2, PWM3,
+              PWM4, PWM5, PWM6, PWM7, PWM8G0, PWM8G1, PWM9G0, PWM9G1, QSPI1,
+              QSPI2, RGMII1, RGMII2, RGMII3, RGMII4, RMII1, RMII2, RMII3,
+              RMII4, RXD1, RXD2, RXD3, RXD4, SALT1, SALT10G0, SALT10G1,
+              SALT11G0, SALT11G1, SALT12G0, SALT12G1, SALT13G0, SALT13G1,
+              SALT14G0, SALT14G1, SALT15G0, SALT15G1, SALT16G0, SALT16G1,
+              SALT2, SALT3, SALT4, SALT5, SALT6, SALT7, SALT8, SALT9G0,
+              SALT9G1, SD1, SD2, SD3, SD3DAT4, SD3DAT5, SD3DAT6, SD3DAT7,
+              SGPM1, SGPS1, SIOONCTRL, SIOPBI, SIOPBO, SIOPWREQ, SIOPWRGD,
+              SIOS3, SIOS5, SIOSCI, SPI1, SPI1ABR, SPI1CS1, SPI1WP, SPI2,
+              SPI2CS1, SPI2CS2, TACH0, TACH1, TACH10, TACH11, TACH12, TACH13,
+              TACH14, TACH15, TACH2, TACH3, TACH4, TACH5, TACH6, TACH7, TACH8,
+              TACH9, THRU0, THRU1, THRU2, THRU3, TXD1, TXD2, TXD3, TXD4,
+              UART10, UART11, UART12G0, UART12G1, UART13G0, UART13G1, UART6,
+              UART7, UART8, UART9, VB, VGAHS, VGAVS, WDTRST1, WDTRST2, WDTRST3,
+              WDTRST4, ]
+
+required:
+  - compatible
+
+examples:
+  - |
+    syscon: scu@1e6e2000 {
+        compatible = "aspeed,ast2600-scu", "syscon", "simple-mfd";
+        reg = <0x1e6e2000 0xf6c>;
+
+        pinctrl: pinctrl {
+            compatible = "aspeed,g6-pinctrl";
+
+            pinctrl_pwm10g1_default: pwm10g1_default {
+                function = "PWM10";
+                groups = "PWM10G1";
+            };
+
+            pinctrl_gpioh0_unbiased_default: gpioh0 {
+                pins = "A18";
+                bias-disable;
+            };
+        };
+    };