dt-bindings: power: supply: add support for MAX17201/MAX17205 fuel gauge

Adding documentation for MAXIMs MAX17201/MAX17205 fuel gauge.

Reviewed-by: Conor Dooley <[email protected]>
Signed-off-by: Dimitri Fedrau <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sebastian Reichel <[email protected]>

Author: Dimitri Fedrau

Documentation/devicetree/bindings/power/supply/maxim,max17201.yaml

@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/maxim,max17201.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX17201 fuel gauge
+
+maintainers:
+  - Dimitri Fedrau <[email protected]>
+
+allOf:
+  - $ref: power-supply.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: maxim,max17201
+      - items:
+          - enum:
+              - maxim,max17205
+          - const: maxim,max17201
+
+  reg:
+    items:
+      - description: ModelGauge m5 registers
+      - description: Nonvolatile registers
+
+  reg-names:
+    items:
+      - const: m5
+      - const: nvmem
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      fuel-gauge@36 {
+        compatible = "maxim,max17201";
+        reg = <0x36>, <0xb>;
+        reg-names = "m5", "nvmem";
+        interrupt-parent = <&gpio0>;
+        interrupts = <31 IRQ_TYPE_LEVEL_LOW>;
+      };
+    };