Messages in this thread Patch in this message | | | From | Douglas Anderson <> | Subject | [PATCH v2 2/6] dt-bindings: display: Add hpd-gpios to panel-common bindings | Date | Mon, 20 Apr 2020 22:06:18 -0700 |
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In the cases where there is no connector in a system there's no great place to put "hpd-gpios". As per discussion [1] the best place to put it is in the panel. Add this to the device tree bindings.
[1] https://lore.kernel.org/r/20200417180819.GE5861@pendragon.ideasonboard.com
Signed-off-by: Douglas Anderson <dianders@chromium.org> ---
Changes in v2: - ("dt-bindings: display: Add hpd-gpios to panel-common...") new for v2
.../devicetree/bindings/display/panel/panel-common.yaml | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/panel/panel-common.yaml b/Documentation/devicetree/bindings/display/panel/panel-common.yaml index ed051ba12084..e9a04a3a4f5f 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-common.yaml +++ b/Documentation/devicetree/bindings/display/panel/panel-common.yaml @@ -96,6 +96,12 @@ 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. + hpd-gpios: + maxItems: 1 + description: + If Hot Plug Detect (HPD) is connected to a GPIO in the system rather + than a dedicated HPD pin the pin can be specified here. + # Control I/Os # Many display panels can be controlled through pins driven by GPIOs. The nature -- 2.26.1.301.g55bc3eb7cb9-goog
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