[PATCH 03/43] dt-bindings: pinctrl: Add DT bindings ep93xx pinctrl

[Nikita Shubin <nikita.shubin@xxxxxxxxxxx>]

Add YAML bindings ep93xx SoC.

Signed-off-by: Nikita Shubin <nikita.shubin@xxxxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---

Notes:
    rfc->v0:
    - dropped separate bindings description, left only one with all groups,
      functions and etc...
    - added Alexander Sverdlin to maintainers
    - added Linus Reviwed-by tags, through i shoudn't =) too many changes
    - fixed warning and added seq_file header

 .../pinctrl/cirrus,ep93xx-pinctrl.yaml        | 66 +++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/cirrus,ep93xx-pinctrl.yaml

diff --git a/Documentation/devicetree/bindings/pinctrl/cirrus,ep93xx-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/cirrus,ep93xx-pinctrl.yaml
new file mode 100644
index 000000000000..cba4be7c5994
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/cirrus,ep93xx-pinctrl.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/cirrus,ep93xx-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus ep93xx pins mux controller
+
+maintainers:
+  - Nikita Shubin <nikita.shubin@xxxxxxxxxxx>
+  - Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>
+
+properties:
+  compatible:
+    enum:
+      - cirrus,ep9301-pinctrl
+      - cirrus,ep9307-pinctrl
+      - cirrus,ep9312-pinctrl
+  regmap:
+    description: phandle to syscon
+
+patternProperties:
+  '^pinctrl-':
+    type: object
+    description: pin node
+    $ref: pinmux-node.yaml#
+
+    properties:
+      function:
+        enum: [ spi, ac97, i2s, pwm, keypad, pata, lcd, gpio1, gpio2, gpio3,
+                gpio4, gpio6, gpio7 ]
+      groups:
+        minItems: 1
+        maxItems: 2
+        items:
+          enum: [ ssp, ac97, i2s_on_ssp, i2s_on_ac97, pwm1, gpio1agrp,
+                  gpio2agrp, gpio3agrp, gpio4agrp, gpio6agrp, gpio7agrp,
+                  rasteronsdram0grp, rasteronsdram3grp, keypadgrp, idegrp]
+
+    required:
+      - function
+      - groups
+
+required:
+  - compatible
+  - regmap
+
+additionalProperties: false
+
+examples:
+  - |
+    syscon: syscon@80930000 {
+        compatible = "cirrus,ep9301-syscon",
+                     "syscon", "simple-mfd";
+        reg = <0x80930000 0x1000>;
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+        pinctrl: pinctrl {
+                compatible = "cirrus,ep9312-pinctrl";
+                regmap = <&syscon>;
+                spi_default_pins: pinctrl-spi {
+                        function = "spi";
+                        groups = "ssp";
+                };
+        };
+    };
-- 
2.39.2