Thierry, please have a look at this.
In which direction should we rotate to match how drm rotation works?
Den 01.02.2017 18.41, skrev Rob Herring:
On Tue, Jan 31, 2017 at 05:03:17PM +0100, Noralf Trønnes wrote:
Display panels can be oriented many ways, especially in the embedded
world. The rotation property is a way to describe this orientation.
The counter clockwise direction is chosen because that's what fbdev
and drm use.
The h/w mounting is rotated counter clockwise, so the framebuffers'
contents are rotated clockwise, right?
Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/display/display.txt | 4 ++++
This is panel property, so bindings/display/panel/panel.txt.
1 file changed, 4 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/display.txt
diff --git a/Documentation/devicetree/bindings/display/display.txt b/Documentation/devicetree/bindings/display/display.txt
new file mode 100644
index 0000000..e2e6867
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/display.txt
@@ -0,0 +1,4 @@
+Common display properties
+-------------------------
+
+- rotation: Display rotation in degrees counter clockwise (0,90,180,270)
--
2.10.2
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