From: Sean Paul <seanpaul@xxxxxxxxxxxx>
This patch adds a new subnode to simple-panel allowing us to override
the typical timing expressed in the panel's display_timing.
Changes in v2:
- Split out the binding into a new patch (Rob)
- display-timings is a new section (Rob)
- Use the full display-timings subnode instead of picking the timing
out (Rob/Thierry)
Changes in v3:
- Go back to using the timing subnode directly, but rename to
panel-timing (Rob)
Changes in v4:
- Simplify desc. for when override should be used (Thierry/Laurent)
- Removed Rob H review since it's been a year and wording changed
Cc: Doug Anderson <dianders@xxxxxxxxxxxx>
Cc: Eric Anholt <eric@xxxxxxxxxx>
Cc: Heiko Stuebner <heiko@xxxxxxxxx>
Cc: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Stéphane Marchesin <marcheu@xxxxxxxxxxxx>
Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-rockchip@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
---
.../bindings/display/panel/simple-panel.txt | 24 +++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/panel/simple-panel.txt b/Documentation/devicetree/bindings/display/panel/simple-panel.txt
index b2b872c710f2..6157f86ddce4 100644
--- a/Documentation/devicetree/bindings/display/panel/simple-panel.txt
+++ b/Documentation/devicetree/bindings/display/panel/simple-panel.txt
@@ -15,6 +15,18 @@ Optional properties:
(hot plug detect) signal, but the signal isn't hooked up so we should
hardcode the max delay from the panel spec when powering up the panel.
+panel-timing subnode
+--------------------
+
+This optional subnode is for devices which require a mode differing
+from the panel's "typical" display timing. The panel timings provided
+here will be ignored if they are found to be outside of allowable
+ranges for the given panel.
+
+Format information on the panel-timing subnode can be found in
+display-timing.txt.
+
+
Example:
panel: panel {
@@ -25,4 +37,16 @@ Example:
enable-gpios = <&gpio 90 0>;
backlight = <&backlight>;
+
+ panel-timing {
+ clock-frequency = <266604720>;
+ hactive = <2400>;
+ hfront-porch = <48>;
+ hback-porch = <84>;
+ hsync-len = <32>;
+ vactive = <1600>;
+ vfront-porch = <3>;
+ vback-porch = <120>;
+ vsync-len = <10>;
+ };
};
--
2.21.0.392.gf8f6787159e-goog
