[PATCH v3 1/7] dt-bindings: embedded-controller: document ASUS Transformer EC

[Svyatoslav Ryhel <clamor95@gmail.com>]

Document embedded controller used in ASUS Transformer device series.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
 .../asus,transformer-ec.yaml                  | 98 +++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/embedded-controller/asus,transformer-ec.yaml

diff --git a/Documentation/devicetree/bindings/embedded-controller/asus,transformer-ec.yaml b/Documentation/devicetree/bindings/embedded-controller/asus,transformer-ec.yaml
new file mode 100644
index 000000000000..670c4c2d339d
--- /dev/null
+++ b/Documentation/devicetree/bindings/embedded-controller/asus,transformer-ec.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/embedded-controller/asus,transformer-ec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASUS Transformer's Embedded Controller
+
+description:
+  Several Nuvoton based Embedded Controllers attached to an I2C bus,
+  running a custom ASUS firmware, specific to the ASUS Transformer
+  device series.
+
+maintainers:
+  - Svyatoslav Ryhel <clamor95@gmail.com>
+
+allOf:
+  - $ref: /schemas/power/supply/power-supply.yaml
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - asus,p1801-t-ec-pad
+          - asus,sl101-ec-dock
+          - asus,tf600t-ec-pad
+          - asus,tf701t-ec-pad
+
+      - items:
+          - enum:
+              - asus,tf101-ec-dock
+              - asus,tf101g-ec-dock
+              - asus,tf201-ec-dock
+              - asus,tf300t-ec-dock
+              - asus,tf300tg-ec-dock
+              - asus,tf300tl-ec-dock
+              - asus,tf700t-ec-dock
+          - const: asus,transformer-ec-dock
+
+      - items:
+          - enum:
+              - asus,tf201-ec-pad
+              - asus,tf300t-ec-pad
+              - asus,tf300tg-ec-pad
+              - asus,tf300tl-ec-pad
+              - asus,tf700t-ec-pad
+          - const: asus,transformer-ec-pad
+
+  reg:
+    description:
+      The ASUS Transformer EC has a main I2C address and an associated
+      DockRAM device, which provides power-related functions for the
+      embedded controller. Both addresses are required for operation.
+    minItems: 2
+
+  reg-names:
+    items:
+      - const: ec
+      - const: dockram
+
+  interrupts:
+    maxItems: 1
+
+  request-gpios:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - request-gpios
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      embedded-controller@19 {
+        compatible = "asus,tf201-ec-dock", "asus,transformer-ec-dock";
+        reg = <0x19>, <0x1b>;
+        reg-names = "ec", "dockram";
+
+        interrupt-parent = <&gpio>;
+        interrupts = <151 IRQ_TYPE_LEVEL_LOW>;
+
+        request-gpios = <&gpio 134 GPIO_ACTIVE_LOW>;
+
+        monitored-battery = <&dock_battery>;
+      };
+    };
+...
-- 
2.51.0