[PATCH v4 04/19] dt-bindings: display: mediatek: add BLENDER yaml for MT8196

[Paul Chen <paul-pl.chen@mediatek.com>]

From: Paul-pl Chen <paul-pl.chen@mediatek.com>

Add mediatek,blender.yaml to support BLENDER for MT8196.
MediaTek display overlap blender, namely OVL_BLENDER or BLENDER,
executes the alpha blending function for overlapping layers
from different sources.

Signed-off-by: Paul-pl Chen <paul-pl.chen@mediatek.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 .../display/mediatek/mediatek,blender.yaml    | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,blender.yaml

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,blender.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,blender.yaml
new file mode 100644
index 000000000000..4b85f6ac40a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,blender.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,blender.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Display Overlap Blender
+
+maintainers:
+  - Chun-Kuang Hu <chunkuang.hu@kernel.org>
+  - Philipp Zabel <p.zabel@pengutronix.de>
+
+description:
+  MediaTek display overlap blender, namely OVL_BLENDER or BLENDER,
+  executes the alpha blending function for overlapping layers
+  from different sources. This is the primary function of the
+  overlapping system.
+
+properties:
+  compatible:
+    const: mediatek,mt8196-blender
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        blender0: blender@328d0000 {
+            compatible = "mediatek,mt8196-blender";
+            reg = <0 0x328d0000 0 0x1000>;
+            clocks = <&ovlsys_config_clk 29>;
+        };
+    };
-- 
2.45.2