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) Cc: Doug Anderson <[email protected]> Cc: Eric Anholt <[email protected]> Cc: Heiko Stuebner <[email protected]> Cc: Jeffy Chen <[email protected]> Cc: Rob Herring <[email protected]> Cc: Stéphane Marchesin <[email protected]> Cc: Thierry Reding <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Sean Paul <[email protected]> --- .../bindings/display/panel/simple-panel.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/Documentation/devicetree/bindings/display/panel/simple-panel.txt b/Documentation/devicetree/bindings/display/panel/simple-panel.txt index 45a457ad38f0..7788b9ce160b 100644 --- a/Documentation/devicetree/bindings/display/panel/simple-panel.txt +++ b/Documentation/devicetree/bindings/display/panel/simple-panel.txt @@ -12,6 +12,24 @@ Optional properties: - enable-gpios: GPIO pin to enable or disable the panel - backlight: phandle of the backlight device attached to the panel +panel-timing subnode +-------------------- + +This optional subnode is for devices which require a mode differing from the +panel's "typical" display timing as programmed in the simple-panel driver. +Overriding the driver mode must only be done in the following scenario: + - The restrictions motivating the override cannot be applied to the platform's + display driver (ie: it must be specific to the device not the platform) + - The panel must not have a fixed mode attributed to it in the driver + - The panel must provide at list one display_timing range by which the override + mode can be validated against + - The override mode will use the 'typ' values from the panel-timings subnode + - You must provide all required properties for the panel-timing subnode + +Format information on the panel-timing subnode can be found in +display-timing.txt. + + Example: panel: panel { @@ -22,4 +40,16 @@ 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>; + }; }; -- 2.16.0.rc1.238.g530d649a79-goog _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
