[PATCH V3 1/5] dt-bindings: embedded-controller: Add EC bindings for Qualcomm reference devices

[Sibi Sankar]

From: Maya Matuszczyk <maccraft123mc@xxxxxxxxx>

Add bindings for the EC firmware running on Hamoa/Purwa and Glymur
reference devices, which run on IT8987 and Nuvoton MCUs respectively.

Signed-off-by: Maya Matuszczyk <maccraft123mc@xxxxxxxxx>
Co-developed-by: Sibi Sankar <sibi.sankar@xxxxxxxxxxxxxxxx>
Signed-off-by: Sibi Sankar <sibi.sankar@xxxxxxxxxxxxxxxx>
---
 .../embedded-controller/qcom,hamoa-ec.yaml    | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/embedded-controller/qcom,hamoa-ec.yaml

diff --git a/Documentation/devicetree/bindings/embedded-controller/qcom,hamoa-ec.yaml b/Documentation/devicetree/bindings/embedded-controller/qcom,hamoa-ec.yaml
new file mode 100644
index 000000000000..ea093b71d269
--- /dev/null
+++ b/Documentation/devicetree/bindings/embedded-controller/qcom,hamoa-ec.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/embedded-controller/qcom,hamoa-ec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Hamoa Embedded Controller.
+
+maintainers:
+  - Sibi Sankar <sibi.sankar@xxxxxxxxxxxxxxxx>
+
+description:
+  Qualcomm Snapdragon based Hamoa/Purwa and Glymur reference devices have an
+  EC running on IT8987 and Nuvoton MCU chips respectively. The EC handles things
+  like fan control, temperature sensors, access to EC internal state changes.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - qcom,glymur-nuvoton-ec
+          - qcom,hamoa-it8987-ec
+      - const: qcom,hamoa-ec
+
+  reg:
+    const: 0x76
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        embedded-controller@76 {
+            compatible = "qcom,hamoa-it8987-ec", "qcom,hamoa-ec";
+            reg = <0x76>;
+
+            interrupts-extended = <&tlmm 66 IRQ_TYPE_LEVEL_HIGH>;
+        };
+    };
+...
-- 
2.34.1