Messages in this thread Patch in this message | | | From | Harald Geyer <> | Subject | [PATCHv2 3/5] arm64: dts: allwinner: a64: add simplefb for A64 SoC | Date | Thu, 15 Mar 2018 16:25:08 +0000 |
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The A64 SoC features two display pipelines, one has a LCD output, the other has a HDMI output.
Add support for simplefb for the LCD output. Tested on Teres I.
This patch was inspired by work of Icenowy Zheng.
Signed-off-by: Harald Geyer <harald@ccbib.org> --- changes since v1: none
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index 8401e7f887ff..1b2ef28c42bd 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -52,6 +52,26 @@ #address-cells = <1>; #size-cells = <1>; + chosen { + #address-cells = <1>; + #size-cells = <1>; + ranges; + +/* + * The pipeline mixer0-lcd0 depends on clock CLK_MIXER0 from DE2 CCU. + * However there is no support for this clock on A64 yet, so we depend + * on the upstream clocks here to keep them (and thus CLK_MIXER0) up. + */ + simplefb_lcd: framebuffer-lcd { + compatible = "allwinner,simple-framebuffer", + "simple-framebuffer"; + allwinner,pipeline = "mixer0-lcd0"; + clocks = <&ccu CLK_TCON0>, + <&ccu CLK_DE>, <&ccu CLK_BUS_DE>; + status = "disabled"; + }; + }; + cpus { #address-cells = <1>; #size-cells = <0>; -- 2.11.0
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