linux-kernel - Re: [PATCH 6/8] arm64: dts: renesas: r8a77995-draak: Enable DU

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Message-ID: <20180215165210.lsreissnzg4wxtgp@verge.net.au>
Date:   Thu, 15 Feb 2018 17:52:11 +0100
From:   Simon Horman <horms@...ge.net.au>
To:     Kieran Bingham <kieran.bingham@...asonboard.com>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Ulrich Hecht <ulrich.hecht@...il.com>,
        linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, geert@...der.be,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 6/8] arm64: dts: renesas: r8a77995-draak: Enable DU

On Thu, Feb 15, 2018 at 02:30:28PM +0000, Kieran Bingham wrote:
> Hi Laurent, Simon,
> 
> On 15/02/18 14:12, Laurent Pinchart wrote:
> > Hi Kieran,
> > 
> > Thank you for the patch.
> > 
> > On Thursday, 15 February 2018 10:38:21 EET Kieran Bingham wrote:
> >> From: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
> >>
> >> Enable the DU, providing only the VGA output for now.
> >>
> >> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
> > 
> > Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> > 
> > I assume Simon will take care of this patch.
> 
> That will be great, - One small caveat on this patch though:
> 
> 
> >> ---
> >>  arch/arm64/boot/dts/renesas/r8a77995-draak.dts | 51 +++++++++++++++++++++++
> >>  1 file changed, 51 insertions(+)
> >>
> >> diff --git a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
> >> b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts index
> >> af07da240be0..668e246dfc5d 100644
> >> --- a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
> >> +++ b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
> >> @@ -27,6 +27,38 @@
> >>  		stdout-path = "serial0:115200n8";
> >>  	};
> >>
> >> +	vga {
> >> +		compatible = "vga-connector";
> >> +
> >> +		port {
> >> +			vga_in: endpoint {
> >> +				remote-endpoint = <&adv7123_out>;
> >> +			};
> >> +		};
> >> +	};
> >> +
> >> +	vga-encoder {
> >> +		compatible = "adi,adv7123";
> >> +
> >> +		ports {
> >> +			#address-cells = <1>;
> >> +			#size-cells = <0>;
> >> +
> >> +			port@0 {
> >> +				reg = <0>;
> >> +				adv7123_in: endpoint {
> >> +					remote-endpoint = <&du_out_rgb>;
> >> +				};
> >> +			};
> >> +			port@1 {
> >> +				reg = <1>;
> >> +				adv7123_out: endpoint {
> >> +					remote-endpoint = <&vga_in>;
> >> +				};
> >> +			};
> >> +		};
> >> +	};
> >> +
> >>  	memory@...00000 {
> >>  		device_type = "memory";
> >>  		/* first 128MB is reserved for secure area. */
> >> @@ -46,6 +78,11 @@
> >>  		};
> >>  	};
> >>
> >> +	du_pins: du {
> >> +		groups = "du_rgb888", "du_sync", "du_disp", "du_dotclkout0";
> 
> The du_dotclkout0 is named differently in Uli's patch. (Of course I believe my
> version is correct, but there is some precedent set it would seem).
> 
> Anyway, If Uli's version of the PFC is accepted (Which I'm sure it will be),
> then I will have to re-spin this patch with the 'different' "du_clk_out_0" value
> in the groups.

Thanks, please repost once this has been shaken out.