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

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Hi Laurent,

On 2023-02-11 00:20:05 +0200, Laurent Pinchart wrote:
> 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 ?

Will do.

> 
> > > ---
> > >  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

-- 
Kind Regards,
Niklas Söderlund



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