From mboxrd@z Thu Jan 1 00:00:00 1970 From: harald@ccbib.org (Harald Geyer) Date: Mon, 12 Mar 2018 16:10:48 +0000 Subject: [PATCH 3/5] arm64: dts: allwinner: a64: add simplefb for A64 SoC In-Reply-To: <20180312161050.7647-1-harald@ccbib.org> References: <20180312161050.7647-1-harald@ccbib.org> Message-ID: <20180312161050.7647-4-harald@ccbib.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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 ca1b365bc722..05d5e8def68a 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