From 01f8c951c25f9a87f2e9dbc09ceca274e80fff4e Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 17 Jan 2017 10:29:10 +0200 Subject: dt-bindings: display: dw-hdmi: Clean up DT bindings documentation Make it clear that the core bridge/dw_hdmi.txt document isn't a device tree binding by itself but is meant to be referenced by platform device tree bindings, and update the Rockchip and Freescale DWC HDMI TX bindings to reference it. Signed-off-by: Laurent Pinchart Acked-by: Rob Herring Signed-off-by: Archit Taneja Link: http://patchwork.freedesktop.org/patch/msgid/20170117082910.27023-21-laurent.pinchart+renesas@ideasonboard.com --- .../devicetree/bindings/display/imx/hdmi.txt | 51 ++++++++++++---------- 1 file changed, 29 insertions(+), 22 deletions(-) (limited to 'Documentation/devicetree/bindings/display/imx') diff --git a/Documentation/devicetree/bindings/display/imx/hdmi.txt b/Documentation/devicetree/bindings/display/imx/hdmi.txt index 1b756cf9afb0..66a8f86e5d12 100644 --- a/Documentation/devicetree/bindings/display/imx/hdmi.txt +++ b/Documentation/devicetree/bindings/display/imx/hdmi.txt @@ -1,29 +1,36 @@ -Device-Tree bindings for HDMI Transmitter +Freescale i.MX6 DWC HDMI TX Encoder +=================================== -HDMI Transmitter -================ +The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP +with a companion PHY IP. + +These DT bindings follow the Synopsys DWC HDMI TX bindings defined in +Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt with the +following device-specific properties. -The HDMI Transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP -with accompanying PHY IP. Required properties: - - #address-cells : should be <1> - - #size-cells : should be <0> - - compatible : should be "fsl,imx6q-hdmi" or "fsl,imx6dl-hdmi". - - gpr : should be <&gpr>. - The phandle points to the iomuxc-gpr region containing the HDMI - multiplexer control register. - - clocks, clock-names : phandles to the HDMI iahb and isrf clocks, as described - in Documentation/devicetree/bindings/clock/clock-bindings.txt and - Documentation/devicetree/bindings/clock/imx6q-clock.txt. - - port@[0-4]: Up to four port nodes with endpoint definitions as defined in - Documentation/devicetree/bindings/media/video-interfaces.txt, - corresponding to the four inputs to the HDMI multiplexer. - -Optional properties: - - ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing - -example: + +- compatible : Shall be one of "fsl,imx6q-hdmi" or "fsl,imx6dl-hdmi". +- reg: See dw_hdmi.txt. +- interrupts: HDMI interrupt number +- clocks: See dw_hdmi.txt. +- clock-names: Shall contain "iahb" and "isfr" as defined in dw_hdmi.txt. +- ports: See dw_hdmi.txt. The DWC HDMI shall have between one and four ports, + numbered 0 to 3, corresponding to the four inputs of the HDMI multiplexer. + Each port shall have a single endpoint. +- gpr : Shall contain a phandle to the iomuxc-gpr region containing the HDMI + multiplexer control register. + +Optional properties + +- ddc-i2c-bus: The HDMI DDC bus can be connected to either a system I2C master + or the functionally-reduced I2C master contained in the DWC HDMI. When + connected to a system I2C master this property contains a phandle to that + I2C master controller. + + +Example: gpr: iomuxc-gpr@020e0000 { /* ... */ -- cgit v1.2.3-55-g7522