Documenting an I2C device used in conjunction with the EC on ASUS
Transformers. The main function of DockRAM (the name used by downstream
ASUS sources) is to provide power-related functions, such as battery and
charger communication. The device is exposed as an individual entity
because multiple embedded controllers can utilize the same DockRAM
instance.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
 .../bindings/misc/asus,dockram.yaml           | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/asus,dockram.yaml

diff --git a/Documentation/devicetree/bindings/misc/asus,dockram.yaml b/Documentation/devicetree/bindings/misc/asus,dockram.yaml
new file mode 100644
index 000000000000..0cfde619ba01
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/asus,dockram.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/asus,dockram.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Asus Transformer EC DockRAM
+
+maintainers:
+  - Svyatoslav Ryhel <clamor95@gmail.com>
+
+description:
+  Dedicated i2c device used to provide power related functions of the
+  embedded controller used in ASUS Transformer device family.
+
+properties:
+  compatible:
+    const: asus,dockram
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      dockram@17 {
+        compatible = "asus,dockram";
+        reg = <0x17>;
+      };
+    };
+...
-- 
2.51.0