linux-kernel - [PATCH RFC 1/8] dt-bindings: display: add Unisoc's drm master bindings

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Message-Id: <1575966995-13757-2-git-send-email-kevin3.tang@gmail.com>
Date:   Tue, 10 Dec 2019 16:36:28 +0800
From:   Kevin Tang <kevin3.tang@...il.com>
To:     airlied@...ux.ie, daniel@...ll.ch, kevin3.tang@...il.com
Cc:     orsonzhai@...il.com, baolin.wang@...aro.org, zhang.lyra@...il.com,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: [PATCH RFC 1/8] dt-bindings: display: add Unisoc's drm master bindings

From: Kevin Tang <kevin.tang@...soc.com>

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@...il.com>
Cc: Baolin Wang <baolin.wang@...aro.org>
Cc: Chunyan Zhang <zhang.lyra@...il.com>
Signed-off-by: Kevin Tang <kevin.tang@...soc.com>
---
 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