[PATCH 1/4] dt-bindings: pinctrl: mobileye,eyeq5-pinctrl: add bindings

[Théo Lebrun]

Add dt-schema type bindings for the Mobileye EyeQ5 pin controller.

Signed-off-by: Théo Lebrun <theo.lebrun@xxxxxxxxxxx>
---
 .../bindings/pinctrl/mobileye,eyeq5-pinctrl.yaml   | 125 +++++++++++++++++++++
 MAINTAINERS                                        |   1 +
 2 files changed, 126 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/mobileye,eyeq5-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mobileye,eyeq5-pinctrl.yaml
new file mode 100644
index 000000000000..5faddebe2413
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/mobileye,eyeq5-pinctrl.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/mobileye,eyeq5-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mobileye EyeQ5 pinctrl (pinmux & pinconf) controller
+
+description:
+  The EyeQ5 pin controller handles a pin bank. It is custom to this platform,
+  its registers live in a shared region called OLB.
+  There are two pin banks on the platform, each having a specific compatible.
+  Pins and groups are bijective.
+
+maintainers:
+  - Grégory Clement <gregory.clement@xxxxxxxxxxx>
+  - Théo Lebrun <theo.lebrun@xxxxxxxxxxx>
+  - Vladimir Kondratiev <vladimir.kondratiev@xxxxxxxxxxxx>
+
+properties:
+  $nodename:
+    pattern: "^pinctrl([0-9]+)?$"
+    description:
+      We have no unique address, we rely on OLB; we therefore can't keep the
+      standard pattern and cannot inherit from pinctrl.yaml.
+
+  compatible:
+    enum:
+      - mobileye,eyeq5-a-pinctrl
+      - mobileye,eyeq5-b-pinctrl
+
+  "#pinctrl-cells":
+    const: 1
+
+  mobileye,olb:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      A phandle to the OLB syscon. This is a fallback to using the parent as
+      syscon node.
+
+required:
+  - compatible
+  - "#pinctrl-cells"
+
+patternProperties:
+  "-pins?$":
+    type: object
+    description: Pin muxing configuration.
+    $ref: pinmux-node.yaml#
+    additionalProperties: false
+    properties:
+      pins: true
+      function: true
+      bias-disable: true
+      bias-pull-down: true
+      bias-pull-up: true
+      drive-strength: true
+    required:
+      - pins
+      - function
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mobileye,eyeq5-a-pinctrl
+    then:
+      patternProperties:
+        "-pins?$":
+          properties:
+            function:
+              enum: [gpio, timer0, timer1, timer2, timer5, uart0, uart1, can0,
+                     can1, spi0, spi1, refclk0]
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mobileye,eyeq5-b-pinctrl
+    then:
+      patternProperties:
+        "-pins?$":
+          properties:
+            function:
+              enum: [gpio, timer3, timer4, timer6, uart2, can2, spi2, spi3,
+                     mclk0]
+
+additionalProperties: false
+
+examples:
+  - |
+    olb@e00000 {
+      compatible = "mobileye,eyeq5-olb", "syscon", "simple-mfd";
+      reg = <0xe00000 0x400>;
+      reg-io-width = <4>;
+
+      pinctrl0 {
+        compatible = "mobileye,eyeq5-a-pinctrl";
+        #pinctrl-cells = <1>;
+      };
+
+      pinctrl1 {
+        compatible = "mobileye,eyeq5-b-pinctrl";
+        #pinctrl-cells = <1>;
+      };
+    };
+  - |
+    olb: olb@e00000 {
+      compatible = "mobileye,eyeq5-olb", "syscon", "simple-mfd";
+      reg = <0xe00000 0x400>;
+      reg-io-width = <4>;
+    };
+
+    pinctrl0 {
+      compatible = "mobileye,eyeq5-a-pinctrl";
+      #pinctrl-cells = <1>;
+      mobileye,olb = <&olb>;
+    };
+
+    pinctrl1 {
+      compatible = "mobileye,eyeq5-b-pinctrl";
+      #pinctrl-cells = <1>;
+      mobileye,olb = <&olb>;
+    };
+
diff --git a/MAINTAINERS b/MAINTAINERS
index 138e0303c5da..d8d9583a5a06 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14553,6 +14553,7 @@ M:	Théo Lebrun <theo.lebrun@xxxxxxxxxxx>
 L:	linux-mips@xxxxxxxxxxxxxxx
 S:	Maintained
 F:	Documentation/devicetree/bindings/mips/mobileye.yaml
+F:	Documentation/devicetree/bindings/pinctrl/mobileye,eyeq5-pinctrl.yaml
 F:	Documentation/devicetree/bindings/reset/mobileye,eyeq5-reset.yaml
 F:	arch/mips/boot/dts/mobileye/
 F:	arch/mips/configs/generic/board-eyeq5.config

-- 
2.43.0