Re: [PATCH v6 16/22] arm64: dts: allwinner: a64: Add DSI pipeline
From: Maxime Ripard <hidden>
Date: 2019-01-25 18:51:27
Also in:
dri-devel, linux-arm-kernel, linux-clk, lkml
On Fri, Jan 25, 2019 at 01:28:54AM +0530, Jagan Teki wrote:
quoted hunk ↗ jump to hunk
The A64 has a MIPI-DSI block which is similar to A31. Add dsi, dphy nodes with A31 fallback compatible and finally connect the dsi node to tcon0 node to make proper DSI pipeline. Signed-off-by: Jagan Teki <jagan-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org> --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 47 +++++++++++++++++++ 1 file changed, 47 insertions(+)diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index cdc154b14a7e..e18d81aff813 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi@@ -358,6 +358,12 @@ #address-cells = <1>; #size-cells = <0>; reg = <1>; + + tcon0_out_dsi: endpoint@1 { + reg = <1>; + remote-endpoint = <&dsi_in_tcon0>; + allwinner,tcon-channel = <1>; + }; }; }; };@@ -935,6 +941,47 @@ status = "disabled"; }; + dsi: dsi@1ca0000 { + compatible = "allwinner,sun50i-a64-mipi-dsi", + "allwinner,sun6i-a31-mipi-dsi"; + reg = <0x01ca0000 0x1000>; + interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_MIPI_DSI>, + <&ccu CLK_DSI_DPHY>;
This one looks weird. There's only a single clock in the A64, and it seems to be for the D-PHY only. And the rate is fixed at 148.5 MHz apparently, as opposed to the current code that is running at twice that speed. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com