From: Kevin Tang <kevin.tang@xxxxxxxxxx>
The Unisoc DRM master device is a virtual device needed to list all
DPU devices or other display interface nodes that comprise the
graphics subsystem
Cc: Orson Zhai <orsonzhai@xxxxxxxxx>
Cc: Baolin Wang <baolin.wang@xxxxxxxxxx>
Cc: Chunyan Zhang <zhang.lyra@xxxxxxxxx>
Signed-off-by: Kevin Tang <kevin.tang@xxxxxxxxxx>
---
Documentation/devicetree/bindings/display/sprd/drm.txt | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/sprd/drm.txt
diff --git a/Documentation/devicetree/bindings/display/sprd/drm.txt b/Documentation/devicetree/bindings/display/sprd/drm.txt
new file mode 100644
index 0000000..7327b9e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/sprd/drm.txt
@@ -0,0 +1,18 @@
+Unisoc DRM master device
+================================
+
+The Unisoc DRM master device is a virtual device needed to list all
+DPU devices or other display interface nodes that comprise the
+graphics subsystem.
+
+Required properties:
+- compatible: Should be "sprd,display-subsystem"
+- ports: Should contain a list of phandles pointing to display interface port
+ of DPU devices.
+
+example:
+
+display-subsystem {
+ compatible = "sprd,display-subsystem";
+ ports = <&dpu_out>;
+};
--
2.7.4
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