From f6700060f53f0764fb970fa1cb716a7f671f0581 Mon Sep 17 00:00:00 2001 From: Ondrej Jirman <megous@megous.com> Date: Tue, 6 Aug 2019 17:57:41 +0200 Subject: [PATCH] dt-bindings: display: hdmi-connector: Support DDC bus enable Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable on-board voltage shifting logic for the DDC bus using a gpio to be able to access DDC bus. Use ddc-en-gpios property on the hdmi-connector to model this. Add binding documentation for optional ddc-en-gpios property. Signed-off-by: Ondrej Jirman <megous@megous.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190806155744.10263-3-megous@megous.com --- .../devicetree/bindings/display/connector/hdmi-connector.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt index 508aee461e0dd..aeb07c4bd7039 100644 --- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt +++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt @@ -9,6 +9,7 @@ Optional properties: - label: a symbolic name for the connector - hpd-gpios: HPD GPIO number - ddc-i2c-bus: phandle link to the I2C controller used for DDC EDID probing +- ddc-en-gpios: signal to enable DDC bus Required nodes: - Video port for HDMI input -- GitLab