dt-bindings: leds: maxim,max77693: Convert to dtschema

Convert the LEDs bindings of Maxim MAX77693 MUIC to DT schema format.
The existing bindings were defined in ../bindings/mfd/max77693.txt.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Documentation/devicetree/bindings/leds/maxim,max77693.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/maxim,max77693.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX77693 MicroUSB and Companion Power Management IC LEDs
+
+maintainers:
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+description: |
+  This is a part of device tree bindings for Maxim MAX77693 MicroUSB Integrated
+  Circuit (MUIC).
+
+  There are two LED outputs available - FLED1 and FLED2. Each of them can
+  control a separate LED or they can be connected together to double the
+  maximum current for a single connected LED. One LED is represented by one
+  child node.
+
+  See also Documentation/devicetree/bindings/mfd/maxim,max77693.yaml for
+  additional information and example.
+
+properties:
+  compatible:
+    const: maxim,max77693-led
+
+  maxim,boost-mode:
+    description:
+      In boost mode the device can produce up to 1.2A of total current on both
+      outputs. The maximum current on each output is reduced to 625mA then. If
+      not enabled explicitly, boost setting defaults to LEDS_BOOST_FIXED in
+      case both current sources are used.
+      See LEDS_BOOST_* in include/dt-bindings/leds/common.h.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2]
+
+  maxim,boost-mvout:
+    description: |
+      Output voltage of the boost module in millivolts.
+      Valid values: 3300 - 5500, step by 25 (rounded down)
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 3300
+    maximum: 5500
+    default: 3300
+
+  maxim,mvsys-min:
+    description: |
+      Low input voltage level in millivolts. Flash is not fired if chip
+      estimates that system voltage could drop below this level due to flash
+      power consumption.
+      Valid values: 2400 - 3400, step by 33 (rounded down)
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 2400
+    maximum: 3400
+    default: 2400
+
+patternProperties:
+  "^([a-z]+-)?led[01]?$":
+    type: object
+    $ref: common.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      led-sources:
+        allOf:
+          - minItems: 1
+            maxItems: 2
+            items:
+              minimum: 0
+              maximum: 1
+
+      led-max-microamp:
+        description: |
+          Valid values for a LED connected to one FLED output:
+            15625 - 250000, step by 15625 (rounded down)
+          Valid values for a LED connected to both FLED outputs:
+            15625 - 500000, step by 15625 (rounded down)
+
+      flash-max-microamp:
+        description: |
+          Valid values for a single LED connected to one FLED output
+          (boost mode must be turned off):
+            15625 - 1000000, step by 15625 (rounded down)
+          Valid values for a single LED connected to both FLED outputs:
+            15625 - 1250000, step by 15625 (rounded down)
+          Valid values for two LEDs case:
+            15625 - 625000, step by 15625 (rounded down)
+
+      flash-max-timeout-us:
+        description: |
+          Valid values: 62500 - 1000000, step by 62500 (rounded down)
+        minimum: 62500
+        maximum: 1000000
+
+    required:
+      - flash-max-microamp
+      - flash-max-timeout-us
+      - led-max-microamp
+      - led-sources
+
+required:
+  - compatible
+
+additionalProperties: false