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authorMaxime Ripard <maxime.ripard@free-electrons.com>2016-09-06 15:23:03 +0200
committerMaxime Ripard <maxime.ripard@free-electrons.com>2016-09-08 09:29:42 +0200
commit440d2c7b127a8b3aab21eb140262bb29c4ee804f (patch)
tree3829fa7194f4c28c7f40baef78ac047ca80635ca /Documentation
parentdrm/sun4i: support A33 tcon (diff)
downloadlinux-440d2c7b127a8b3aab21eb140262bb29c4ee804f.tar.xz
linux-440d2c7b127a8b3aab21eb140262bb29c4ee804f.zip
drm/sun4i: backend: Handle the SAT
The A33 has an block called SAT that is part of the backend that needs to be clocked and out of reset to be able for the backend to operate properly. Extend the binding to have the SAT resources listed, and claim them when the backend probes. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Chen-Yu Tsai <wens@csie.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
index 46d8c570aa11..abe9e9d8b785 100644
--- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
+++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
@@ -76,6 +76,14 @@ Required properties:
Documentation/devicetree/bindings/media/video-interfaces.txt. The
first port should be the input endpoints, the second one the output
+On the A33, some additional properties are required:
+ - reg needs to have an additional region corresponding to the SAT
+ - reg-names need to be set, with "be" and "sat"
+ - clocks and clock-names need to have a phandle to the SAT bus
+ clocks, whose name will be "sat"
+ - resets and reset-names need to have a phandle to the SAT bus
+ resets, whose name will be "sat"
+
Display Engine Frontend
-----------------------