dt-bindings: pinctrl: imx8m: Integrate duplicated i.MX 8M schemas

The i.MX8MM/N/P/Q IOMUXC schemas are basically the same, it does not to
have four schemas for almost the same binding.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230104021430.3503497-1-peng.fan@oss.nxp.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.yaml → Documentation/devicetree/bindings/pinctrl/fsl,imx8m-pinctrl.yaml

-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/pinctrl/fsl,imx8mm-pinctrl.yaml#
+$id: http://devicetree.org/schemas/pinctrl/fsl,imx8m-pinctrl.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Freescale IMX8MM IOMUX Controller
+title: Freescale IMX8M IOMUX Controller
 
 maintainers:
-  - Anson Huang <Anson.Huang@nxp.com>
+  - Peng Fan <peng.fan@nxp.com>
 
 description:
   Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
@@ -15,7 +15,11 @@ description:
 
 properties:
   compatible:
-    const: fsl,imx8mm-iomuxc
+    enum:
+      - fsl,imx8mm-iomuxc
+      - fsl,imx8mn-iomuxc
+      - fsl,imx8mp-iomuxc
+      - fsl,imx8mq-iomuxc
 
   reg:
     maxItems: 1
@@ -34,9 +38,10 @@ patternProperties:
           each entry consists of 6 integers and represents the mux and config
           setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
           mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
-          be found in <arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h>. The last
-          integer CONFIG is the pad setting value like pull-up on this pin. Please
-          refer to i.MX8M Mini Reference Manual for detailed CONFIG settings.
+          be found in <arch/arm64/boot/dts/freescale/imx8m[m,n,p,q]-pinfunc.h>.
+          The last integer CONFIG is the pad setting value like pull-up on this
+          pin. Please refer to i.MX8M Mini/Nano/Plus/Quad Reference Manual for
+          detailed CONFIG settings.
         $ref: /schemas/types.yaml#/definitions/uint32-matrix
         items:
           items:
@@ -51,7 +56,8 @@ patternProperties:
             - description: |
                 "input_val" indicates the select input value to be applied.
             - description: |
-                "pad_setting" indicates the pad configuration value to be applied.
+                "pad_setting" indicates the pad configuration value to be
+                applied.
 
     required:
       - fsl,pins

Documentation/devicetree/bindings/pinctrl/fsl,imx8mn-pinctrl.yaml

-# SPDX-License-Identifier: GPL-2.0
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/pinctrl/fsl,imx8mn-pinctrl.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Freescale IMX8MN IOMUX Controller
-
-maintainers:
-  - Anson Huang <Anson.Huang@nxp.com>
-
-description:
-  Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
-  for common binding part and usage.
-
-properties:
-  compatible:
-    const: fsl,imx8mn-iomuxc
-
-  reg:
-    maxItems: 1
-
-# Client device subnode's properties
-patternProperties:
-  'grp$':
-    type: object
-    description:
-      Pinctrl node's client devices use subnodes for desired pin configuration.
-      Client device subnodes use below standard properties.
-
-    properties:
-      fsl,pins:
-        description:
-          each entry consists of 6 integers and represents the mux and config
-          setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
-          mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
-          be found in <arch/arm64/boot/dts/freescale/imx8mn-pinfunc.h>. The last
-          integer CONFIG is the pad setting value like pull-up on this pin. Please
-          refer to i.MX8M Nano Reference Manual for detailed CONFIG settings.
-        $ref: /schemas/types.yaml#/definitions/uint32-matrix
-        items:
-          items:
-            - description: |
-                "mux_reg" indicates the offset of mux register.
-            - description: |
-                "conf_reg" indicates the offset of pad configuration register.
-            - description: |
-                "input_reg" indicates the offset of select input register.
-            - description: |
-                "mux_val" indicates the mux value to be applied.
-            - description: |
-                "input_val" indicates the select input value to be applied.
-            - description: |
-                "pad_setting" indicates the pad configuration value to be applied.
-
-    required:
-      - fsl,pins
-
-    additionalProperties: false
-
-allOf:
-  - $ref: "pinctrl.yaml#"
-
-required:
-  - compatible
-  - reg
-
-additionalProperties: false
-
-examples:
-  # Pinmux controller node
-  - |
-    iomuxc: pinctrl@30330000 {
-        compatible = "fsl,imx8mn-iomuxc";
-        reg = <0x30330000 0x10000>;
-
-        pinctrl_uart2: uart2grp {
-            fsl,pins =
-                <0x23C 0x4A4 0x4FC 0x0 0x0	0x140>,
-                <0x240 0x4A8 0x000 0x0 0x0	0x140>;
-        };
-    };
-
-...

Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yaml

-# SPDX-License-Identifier: GPL-2.0
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/pinctrl/fsl,imx8mp-pinctrl.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Freescale IMX8MP IOMUX Controller
-
-maintainers:
-  - Anson Huang <Anson.Huang@nxp.com>
-
-description:
-  Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
-  for common binding part and usage.
-
-properties:
-  compatible:
-    const: fsl,imx8mp-iomuxc
-
-  reg:
-    maxItems: 1
-
-# Client device subnode's properties
-patternProperties:
-  'grp$':
-    type: object
-    description:
-      Pinctrl node's client devices use subnodes for desired pin configuration.
-      Client device subnodes use below standard properties.
-
-    properties:
-      fsl,pins:
-        description:
-          each entry consists of 6 integers and represents the mux and config
-          setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
-          mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
-          be found in <arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h>. The last
-          integer CONFIG is the pad setting value like pull-up on this pin. Please
-          refer to i.MX8M Plus Reference Manual for detailed CONFIG settings.
-        $ref: /schemas/types.yaml#/definitions/uint32-matrix
-        items:
-          items:
-            - description: |
-                "mux_reg" indicates the offset of mux register.
-            - description: |
-                "conf_reg" indicates the offset of pad configuration register.
-            - description: |
-                "input_reg" indicates the offset of select input register.
-            - description: |
-                "mux_val" indicates the mux value to be applied.
-            - description: |
-                "input_val" indicates the select input value to be applied.
-            - description: |
-                "pad_setting" indicates the pad configuration value to be applied.
-
-    required:
-      - fsl,pins
-
-    additionalProperties: false
-
-allOf:
-  - $ref: "pinctrl.yaml#"
-
-required:
-  - compatible
-  - reg
-
-additionalProperties: false
-
-examples:
-  # Pinmux controller node
-  - |
-    iomuxc: pinctrl@30330000 {
-        compatible = "fsl,imx8mp-iomuxc";
-        reg = <0x30330000 0x10000>;
-
-        pinctrl_uart2: uart2grp {
-            fsl,pins =
-                <0x228 0x488 0x5F0 0x0 0x6	0x49>,
-                <0x228 0x488 0x000 0x0 0x0	0x49>;
-        };
-    };
-
-...

Documentation/devicetree/bindings/pinctrl/fsl,imx8mq-pinctrl.yaml

-# SPDX-License-Identifier: GPL-2.0
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/pinctrl/fsl,imx8mq-pinctrl.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Freescale IMX8MQ IOMUX Controller
-
-maintainers:
-  - Anson Huang <Anson.Huang@nxp.com>
-
-description:
-  Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
-  for common binding part and usage.
-
-properties:
-  compatible:
-    const: fsl,imx8mq-iomuxc
-
-  reg:
-    maxItems: 1
-
-# Client device subnode's properties
-patternProperties:
-  'grp$':
-    type: object
-    description:
-      Pinctrl node's client devices use subnodes for desired pin configuration.
-      Client device subnodes use below standard properties.
-
-    properties:
-      fsl,pins:
-        description:
-          each entry consists of 6 integers and represents the mux and config
-          setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
-          mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
-          be found in <arch/arm64/boot/dts/freescale/imx8mq-pinfunc.h>. The last
-          integer CONFIG is the pad setting value like pull-up on this pin. Please
-          refer to i.MX8M Quad Reference Manual for detailed CONFIG settings.
-        $ref: /schemas/types.yaml#/definitions/uint32-matrix
-        items:
-          items:
-            - description: |
-                "mux_reg" indicates the offset of mux register.
-            - description: |
-                "conf_reg" indicates the offset of pad configuration register.
-            - description: |
-                "input_reg" indicates the offset of select input register.
-            - description: |
-                "mux_val" indicates the mux value to be applied.
-            - description: |
-                "input_val" indicates the select input value to be applied.
-            - description: |
-                "pad_setting" indicates the pad configuration value to be applied.
-
-    required:
-      - fsl,pins
-
-    additionalProperties: false
-
-allOf:
-  - $ref: "pinctrl.yaml#"
-
-required:
-  - compatible
-  - reg
-
-additionalProperties: false
-
-examples:
-  # Pinmux controller node
-  - |
-    iomuxc: pinctrl@30330000 {
-        compatible = "fsl,imx8mq-iomuxc";
-        reg = <0x30330000 0x10000>;
-
-        pinctrl_uart1: uart1grp {
-            fsl,pins =
-                <0x234 0x49C 0x4F4 0x0 0x0	0x49>,
-                <0x238 0x4A0 0x4F4 0x0 0x0	0x49>;
-        };
-    };
-
-...