Re: [PATCH 1/2] ARM: dts: r8a77470: Add DU support

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On Tue, Mar 19, 2019 at 12:21:38PM +0000, Fabrizio Castro wrote:
> This commit adds DU support to the RZ/G1C (a.k.a. r8a77470)
> specific device tree.
> 
> Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/r8a77470.dtsi | 32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/r8a77470.dtsi b/arch/arm/boot/dts/r8a77470.dtsi
> index f4e232b..493cf2b 100644
> --- a/arch/arm/boot/dts/r8a77470.dtsi
> +++ b/arch/arm/boot/dts/r8a77470.dtsi
> @@ -643,6 +643,38 @@
>  			resets = <&cpg 408>;
>  		};
>  
> +		du: display@feb00000 {
> +			compatible = "renesas,du-r8a77470";
> +			reg = <0 0xfeb00000 0 0x40000>;
> +			interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&cpg CPG_MOD 724>,
> +				 <&cpg CPG_MOD 723>;

I do not see MSTP 7 bit 23 documented as used by DU
in the User's Manual: Hardware v1.00 Oct 13, 2017.

Do you have more recent documentation or some insight in this area?

> +			clock-names = "du.0", "du.1";
> +			status = "disabled";
> +
> +			ports {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				port@0 {
> +					reg = <0>;
> +					du_out_rgb0: endpoint {
> +					};
> +				};
> +				port@1 {
> +					reg = <1>;
> +					du_out_rgb1: endpoint {
> +					};
> +				};
> +				port@2 {
> +					reg = <2>;
> +					du_out_lvds0: endpoint {
> +					};
> +				};
> +			};
> +		};
> +
>  		prr: chipid@ff000044 {
>  			compatible = "renesas,prr";
>  			reg = <0 0xff000044 0 4>;
> -- 
> 2.7.4
> 



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