[PATCH v2 7/8] dt-bindings: mfd: Add binding for MediaTek MT6363 series SPMI PMIC

[AngeloGioacchino Del Regno]

Add a binding for the MediaTek MT6363/6373 (and similar) multi
function PMICs connected over SPMI.

These PMICs are found on board designs using newer MediaTek SoCs,
such as the Dimensity 9400 Smartphone chip, or the Chromebook
MT8196 chip.

Reviewed-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
Link: https://lore.kernel.org/r/20250623120038.108891-2-angelogioacchino.delregno@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
---
 .../bindings/mfd/mediatek,mt6363.yaml         | 115 ++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/mediatek,mt6363.yaml

diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt6363.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt6363.yaml
new file mode 100644
index 000000000000..0d1078e92232
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/mediatek,mt6363.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/mediatek,mt6363.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT6363 series SPMI PMICs multi-function device
+
+maintainers:
+  - AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
+
+description: |
+  Some MediaTek Power Management ICs (PMICs) found in board designs with
+  the Helio, Dimensity and/or Kompanio series of SoCs are interfaced to
+  the chip via the System Power Management Interface (SPMI) bus.
+
+  These PMICs are multi-function devices with various sub modules.
+  For example, those may include one, or more of the following:
+  - Auxiliary ADC Controller
+  - Clock Controller
+  - eFuses
+  - GPIO Controller
+  - Interrupt Controller
+  - Keys
+  - LEDs Controller
+  - Regulators
+  - RTC
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt6363
+      - mediatek,mt6373
+
+  reg:
+    maxItems: 1
+
+  '#address-cells':
+    const: 0
+
+  '#size-cells':
+    const: 0
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 3
+
+  adc:
+    type: object
+    $ref: /schemas/iio/adc/mediatek,mt6359-auxadc.yaml#
+    unevaluatedProperties: false
+
+  regulators:
+    type: object
+    additionalProperties: true
+
+required:
+  - compatible
+  - reg
+  - '#address-cells'
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt6363-regulator
+    then:
+      properties:
+        regulators:
+          $ref: /schemas/regulator/mediatek,mt6363-regulator.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt6373-regulator
+    then:
+      properties:
+        regulators:
+          $ref: /schemas/regulator/mediatek,mt6373-regulator.yaml#
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/spmi/spmi.h>
+
+    spmi {
+      #address-cells = <2>;
+      #size-cells = <0>;
+
+      pmic at 4 {
+        compatible = "mediatek,mt6363";
+        reg = <0x4 SPMI_USID>;
+        interrupts = <4 64 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-controller;
+        #address-cells = <0>;
+        #interrupt-cells = <3>;
+
+        adc {
+            compatible = "mediatek,mt6363-auxadc";
+            #io-channel-cells = <1>;
+        };
+
+        regulators {
+            compatible = "mediatek,mt6363-regulator";
+        };
+      };
+    };
-- 
2.49.0