dt-bindings: pinctrl: pinctrl-max77620: convert to DT schema

Convert pinctrl-max77620 devicetree bindings for the MAX77620 PMIC from
TXT to YAML format. This patch does not change any functionality; the
bindings remain the same.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>

Author: clamor-s

Documentation/devicetree/bindings/pinctrl/maxim,max77620-pinctrl.yaml

@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/maxim,max77620-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Pinmux controller function for Maxim MAX77620 Power management IC
+
+maintainers:
+  - Svyatoslav Ryhel <clamor95@gmail.com>
+
+description:
+  Device has 8 GPIO pins which can be configured as GPIO as well as the
+  special IO functions.
+
+allOf:
+  - $ref: /schemas/pinctrl/pincfg-node.yaml
+  - $ref: /schemas/pinctrl/pinmux-node.yaml
+
+patternProperties:
+  "^(pin|gpio).":
+    type: object
+    additionalProperties: false
+
+    properties:
+      pins:
+        items:
+          enum: [ gpio0, gpio1, gpio2, gpio3, gpio4, gpio5, gpio6, gpio7 ]
+
+      function:
+        items:
+          enum: [ gpio, lpm-control-in, fps-out, 32k-out1, sd0-dvs-in, sd1-dvs-in,
+                  reference-out ]
+
+      drive-push-pull: true
+      drive-open-drain: true
+      bias-pull-up: true
+      bias-pull-down: true
+
+      maxim,active-fps-source:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: |
+          FPS source for the GPIOs to get enabled/disabled when system is in
+          active state. Valid values are:
+          - MAX77620_FPS_SRC_0: FPS source is FPS0.
+          - MAX77620_FPS_SRC_1: FPS source is FPS1
+          - MAX77620_FPS_SRC_2: FPS source is FPS2
+          - MAX77620_FPS_SRC_NONE: GPIO is not controlled by FPS events and
+                                   it gets enabled/disabled by register access.
+          Absence of this property will leave the FPS configuration register
+          for that GPIO to default configuration.
+
+      maxim,active-fps-power-up-slot:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Sequencing event slot number on which the GPIO get enabled when
+          master FPS input event set to HIGH. This is applicable if FPS source
+          is selected as FPS0, FPS1 or FPS2.
+        enum: [0, 1, 2, 3, 4, 5, 6, 7]
+
+      maxim,active-fps-power-down-slot:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Sequencing event slot number on which the GPIO get disabled when
+          master FPS input event set to LOW. This is applicable if FPS source
+          is selected as FPS0, FPS1 or FPS2.
+        enum: [0, 1, 2, 3, 4, 5, 6, 7]
+
+      maxim,suspend-fps-source:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          This is same as property "maxim,active-fps-source" but value get
+          configured when system enters in to suspend state.
+
+      maxim,suspend-fps-power-up-slot:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          This is same as property "maxim,active-fps-power-up-slot" but this
+          value get configured into FPS configuration register when system
+          enters into suspend. This is applicable if suspend state FPS source
+          is selected as FPS0, FPS1 or FPS2.
+        enum: [0, 1, 2, 3, 4, 5, 6, 7]
+
+      maxim,suspend-fps-power-down-slot:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          This is same as property "maxim,active-fps-power-down-slot" but this
+          value get configured into FPS configuration register when system
+          enters into suspend. This is applicable if suspend state FPS source
+          is selected as FPS0, FPS1 or FPS2.
+        enum: [0, 1, 2, 3, 4, 5, 6, 7]
+
+    required:
+      - pins
+
+additionalProperties: false
+
+# see maxim,max77620.yaml for an example