Re: [PATCH 3/4] arm64: dts: renesas: r8a77995: add VSPBS instance

Laurent Pinchart
2018-02-13T12:43:32Z

Hi Kieran,

Thank you for the patch.

On Tuesday, 13 February 2018 00:25:28 EET Kieran Bingham wrote:
> From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
>
> The r8a77995 has a VSPBS to support image processing such as blending of
> 2 input images.
>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> ---
> arch/arm64/boot/dts/renesas/r8a77995.dtsi | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a77995.dtsi
> b/arch/arm64/boot/dts/renesas/r8a77995.dtsi index
> 196a917afea6..50c891f6649f 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77995.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
> @@ -692,6 +692,16 @@
> status = "disabled";
> };
>
> + vspbs: vsp@fe960000 {
> + compatible = "renesas,vsp2";
> + reg = <0 0xfe960000 0 0x4000>;

Unless I'm mistaken the VSPD instance has a CLUT on RPF2, so you need to
extend the memory region to include it. It's probably safe to set the size to
0x8000 to include the whole VSP memory region, even if most of the
0x4000-0x7fff range is not used.

It seems that r8a7795 and r8a7796 suffer from the same issue upstream, they
should be fixed.

Apart from that,

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> + interrupts = <GIC_SPI 465 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cpg CPG_MOD 627>;
> + power-domains = <&sysc R8A77995_PD_ALWAYS_ON>;
> + resets = <&cpg 627>;
> + renesas,fcp = <&fcpvb0>;
> + };
> +
> fcpvb0: fcp@fe96f000 {
> compatible = "renesas,fcpv";
> reg = <0 0xfe96f000 0 0x200>;

--
Regards,

Laurent Pinchart