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authorIcenowy Zheng <icenowy@aosc.io>2017-05-15 00:30:35 +0800
committerMaxime Ripard <maxime.ripard@free-electrons.com>2017-05-15 11:12:25 +0200
commitf23c68a992def240fe46df8517f15171d7bd6ec2 (patch)
tree5b6ea873a573e70e2d67f38615aa2272563d3a38 /Documentation/devicetree/bindings/display/sunxi
parentdrm/sun4i: backend: Clarify sun4i_backend_layer_enable debug message (diff)
downloadlinux-dev-f23c68a992def240fe46df8517f15171d7bd6ec2.tar.xz
linux-dev-f23c68a992def240fe46df8517f15171d7bd6ec2.zip
dt-bindings: add bindings for DE2 on V3s SoC
Allwinner V3s SoC have a display engine which have a different pipeline with older SoCs. Add document for it (new compatibles and the new "mixer" part). Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'Documentation/devicetree/bindings/display/sunxi')
-rw-r--r--Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt26
1 files changed, 24 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
index 7acdbf14ae1c..66b85a195ef2 100644
--- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
+++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
@@ -41,6 +41,7 @@ Required properties:
* allwinner,sun6i-a31-tcon
* allwinner,sun6i-a31s-tcon
* allwinner,sun8i-a33-tcon
+ * allwinner,sun8i-v3s-tcon
- reg: base address and size of memory-mapped region
- interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the TCON. Three are needed:
@@ -62,7 +63,7 @@ Required properties:
second the block connected to the TCON channel 1 (usually the TV
encoder)
-On SoCs other than the A33, there is one more clock required:
+On SoCs other than the A33 and V3s, there is one more clock required:
- 'tcon-ch1': The clock driving the TCON channel 1
DRC
@@ -148,6 +149,26 @@ Required properties:
Documentation/devicetree/bindings/media/video-interfaces.txt. The
first port should be the input endpoints, the second one the outputs
+Display Engine 2.0 Mixer
+------------------------
+
+The DE2 mixer have many functionalities, currently only layer blending is
+supported.
+
+Required properties:
+ - compatible: value must be one of:
+ * allwinner,sun8i-v3s-de2-mixer
+ - reg: base address and size of the memory-mapped region.
+ - clocks: phandles to the clocks feeding the mixer
+ * bus: the mixer interface clock
+ * mod: the mixer module clock
+ - clock-names: the clock names mentioned above
+ - resets: phandles to the reset controllers driving the mixer
+
+- ports: A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt. The
+ first port should be the input endpoints, the second one the output
+
Display Engine Pipeline
-----------------------
@@ -162,9 +183,10 @@ Required properties:
* allwinner,sun6i-a31-display-engine
* allwinner,sun6i-a31s-display-engine
* allwinner,sun8i-a33-display-engine
+ * allwinner,sun8i-v3s-display-engine
- allwinner,pipelines: list of phandle to the display engine
- frontends available.
+ frontends (DE 1.0) or mixers (DE 2.0) available.
Example: