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dt-bindings: display: sun4i: Add binding for A31 HDMI controller

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The HDMI controller in the A31 SoC is slightly different from the
earlier version. In addition to the TMDS clock and DDC controls,
this version now takes a second DDC clock input.

Add a compatible string for it, and add the DDC clock input to the
list of clocks required.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010032008.682-7-wens@csie.org
This commit is contained in:
Chen-Yu Tsai 2017-10-10 11:20:03 +08:00 committed by Maxime Ripard
parent cc67ae90be
commit 68a48afa65
1 changed files with 3 additions and 0 deletions
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Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
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@ -41,14 +41,17 @@ CEC. It is one end of the pipeline.
Required properties:
- compatible: value must be one of:
* allwinner,sun5i-a10s-hdmi
* allwinner,sun6i-a31-hdmi
- reg: base address and size of memory-mapped region
- interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the HDMI encoder
* ahb: the HDMI interface clock
* mod: the HDMI module clock
* ddc: the HDMI ddc clock (A31 only)
* pll-0: the first video PLL
* pll-1: the second video PLL
- clock-names: the clock names mentioned above
- resets: phandle to the reset control for the HDMI encoder (A31 only)
- dmas: phandles to the DMA channels used by the HDMI encoder
* ddc-tx: The channel for DDC transmission
* ddc-rx: The channel for DDC reception