dt-bindings: Add IEI vendor prefix and IEI WT61P803 PUZZLE driver bindings

Add the IEI WT61P803 PUZZLE Device Tree bindings for MFD, HWMON and LED
drivers. A new vendor prefix is also added accordingly for
IEI Integration Corp.

Signed-off-by: Luka Kovacic <luka.kovacic@sartura.hr>
Signed-off-by: Pavo Banicevic <pavo.banicevic@sartura.hr>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://patch.msgid.link/20210824124438.14519-2-luka.kovacic@sartura.hr
[robh: fix warnings from current tools]
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/hwmon/iei,wt61p803-puzzle-hwmon.yaml

@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/iei,wt61p803-puzzle-hwmon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IEI WT61P803 PUZZLE MCU HWMON module from IEI Integration Corp.
+
+maintainers:
+  - Luka Kovacic <luka.kovacic@sartura.hr>
+
+description: |
+  This module is a part of the IEI WT61P803 PUZZLE MFD device. For more details
+  see Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml.
+
+  The HWMON module is a sub-node of the MCU node in the Device Tree.
+
+properties:
+  compatible:
+    const: iei,wt61p803-puzzle-hwmon
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+patternProperties:
+  '^fan-group@[0-1]$':
+    type: object
+    additionalProperties: false
+
+    properties:
+      reg:
+        minimum: 0
+        maximum: 1
+        description:
+          Fan group ID
+
+      '#cooling-cells':
+        const: 2
+
+      cooling-levels:
+        minItems: 1
+        maxItems: 255
+        description:
+          Cooling levels for the fans (PWM value mapping)
+
+    required:
+      - reg
+      - '#cooling-cells'
+      - cooling-levels
+
+required:
+  - compatible
+  - '#address-cells'
+  - '#size-cells'
+
+additionalProperties: false

Documentation/devicetree/bindings/leds/iei,wt61p803-puzzle-leds.yaml

@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/iei,wt61p803-puzzle-leds.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IEI WT61P803 PUZZLE MCU LED module from IEI Integration Corp.
+
+maintainers:
+  - Luka Kovacic <luka.kovacic@sartura.hr>
+
+description: |
+  This module is a part of the IEI WT61P803 PUZZLE MFD device. For more details
+  see Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml.
+
+  The LED module is a sub-node of the MCU node in the Device Tree.
+
+properties:
+  compatible:
+    const: iei,wt61p803-puzzle-leds
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  led@0:
+    $ref: common.yaml
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        const: 0
+
+required:
+  - compatible
+  - '#address-cells'
+  - '#size-cells'
+
+additionalProperties: false

Documentation/devicetree/bindings/mfd/iei,wt61p803-puzzle.yaml

@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/iei,wt61p803-puzzle.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IEI WT61P803 PUZZLE MCU from IEI Integration Corp.
+
+maintainers:
+  - Luka Kovacic <luka.kovacic@sartura.hr>
+
+description: |
+  IEI WT61P803 PUZZLE MCU is embedded in some IEI Puzzle series boards.
+  It's used for controlling system power states, fans, LEDs and temperature
+  sensors.
+
+  For Device Tree bindings of other sub-modules (HWMON, LEDs) refer to the
+  binding documents under the respective subsystem directories.
+
+properties:
+  compatible:
+    const: iei,wt61p803-puzzle
+
+  current-speed: true
+
+  enable-beep:
+    type: boolean
+
+  hwmon:
+    $ref: /schemas/hwmon/iei,wt61p803-puzzle-hwmon.yaml
+
+  leds:
+    $ref: /schemas/leds/iei,wt61p803-puzzle-leds.yaml
+
+required:
+  - compatible
+  - current-speed
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/leds/common.h>
+    serial {
+        mcu {
+            compatible = "iei,wt61p803-puzzle";
+            current-speed = <115200>;
+            enable-beep;
+
+            leds {
+                compatible = "iei,wt61p803-puzzle-leds";
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                led@0 {
+                    reg = <0>;
+                    function = LED_FUNCTION_POWER;
+                    color = <LED_COLOR_ID_BLUE>;
+                };
+            };
+
+            hwmon {
+                compatible = "iei,wt61p803-puzzle-hwmon";
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                fan-group@0 {
+                    #cooling-cells = <2>;
+                    reg = <0x00>;
+                    cooling-levels = <64 102 170 230 250>;
+                };
+
+                fan-group@1 {
+                    #cooling-cells = <2>;
+                    reg = <0x01>;
+                    cooling-levels = <64 102 170 230 250>;
+                };
+            };
+        };
+    };