Re: [PATCH/RFC] arm64: dts: renesas: draak: Add overlay for HDMI input

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Hi Niklas,

On Fri, Feb 10, 2023 at 11:07:43PM +0100, Niklas Söderlund wrote:
> Hi Laurent,
> 
> Thanks for your patch.
> 
> On 2023-02-10 23:15:51 +0200, Laurent Pinchart wrote:
> > The Draak board has an ADV7180 CVBS decoder and an ADV7612 HDMI decoder,
> > both connected to the same VIN input. DIP switches are used to select
> > one of the two devices, with the CVBS decoder being the default. Add an
> > overlay that selects the HDMI decoder.
> > 
> > Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> > ---
> > 
> > Niklas, would this be an acceptable way to handle the DIP switches on
> > the Draak board ?
> 
> I think this is a perfect way to handle DIP switch settings. I have a 
> similar patch for Eagle I wish to upstream one of these days.
> 
> For this patch, however correct it is, I have a comment. As part of the 
> ongoing rebasing of BSP patches I'm preparing to submit a patch which 
> makes the HDMI the default input for Draak. The BSP team have requested 
> this as they wish to align all Gen3 boards to have HDMI as the default 
> input.
> 
> Hence, this patch is awesome, but should be reversed to overlay RCA 
> entablement :-)

Works for me. Would you mind taking this in your tree and reversing it
on top of the patch that switches to HDMI by default ?

> > ---
> >  arch/arm64/boot/dts/renesas/Makefile          |  1 +
> >  .../boot/dts/renesas/draak-hdmi-input.dtso    | 33 +++++++++++++++++++
> >  2 files changed, 34 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/renesas/draak-hdmi-input.dtso
> > 
> > diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
> > index 0699b51c1247..de4170af611e 100644
> > --- a/arch/arm64/boot/dts/renesas/Makefile
> > +++ b/arch/arm64/boot/dts/renesas/Makefile
> > @@ -88,4 +88,5 @@ dtb-$(CONFIG_ARCH_R9A07G054) += r9a07g054l2-smarc.dtb
> >  dtb-$(CONFIG_ARCH_R9A09G011) += r9a09g011-v2mevk2.dtb
> >  
> >  dtb-$(CONFIG_ARCH_RCAR_GEN3) += draak-ebisu-panel-aa104xd12.dtbo
> > +dtb-$(CONFIG_ARCH_RCAR_GEN3) += draak-hdmi-input.dtbo
> >  dtb-$(CONFIG_ARCH_RCAR_GEN3) += salvator-panel-aa104xd12.dtbo
> > diff --git a/arch/arm64/boot/dts/renesas/draak-hdmi-input.dtso b/arch/arm64/boot/dts/renesas/draak-hdmi-input.dtso
> > new file mode 100644
> > index 000000000000..e0d671f0cab3
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/renesas/draak-hdmi-input.dtso
> > @@ -0,0 +1,33 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > +/*
> > + * Copyright 2023 Ideas on Board Oy
> > + *
> > + * Device tree overlay for the Draak board, to enable HDMI input. This requires
> > + * setting DIP switches SW49, SW50, SW51 and SW52 to ON, and SW53 and SW54 to
> > + * OFF.
> > + */
> > +
> > +/dts-v1/;
> > +/plugin/;
> > +
> > +&adv7612_out {
> > +	remote-endpoint = <&vin4_in>;
> > +};
> > +
> > +&i2c0 {
> > +	composite-in@20 {
> > +		ports {
> > +			port@3 {
> > +				/delete-node/ endpoint;
> > +			};
> > +		};
> > +	};
> > +};
> > +
> > +&vin4_in {
> > +	remote-endpoint = <&adv7612_out>;
> > +};
> > +
> > +&vin4_pins_cvbs {
> > +	groups = "vin4_data24", "vin4_sync", "vin4_clk";
> > +};

-- 
Regards,

Laurent Pinchart



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