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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
Cc: Hans Verkuil <hverkuil@xs4all.nl>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-media@vger.kernel.org,  linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH] media: rcar-vin: Add support for RAW10
Date: Wed, 17 Apr 2024 15:34:36 +0200	[thread overview]
Message-ID: <CAMuHMdWxxzn2t2qURChY=62GmDPKbQku63uRCCg=CDRCeOwJTw@mail.gmail.com> (raw)
In-Reply-To: <20240417120230.4086364-1-niklas.soderlund+renesas@ragnatech.se>

Hi Niklas,

On Wed, Apr 17, 2024 at 2:06 PM Niklas Söderlund
<niklas.soderlund+renesas@ragnatech.se> wrote:
> Some R-Car SoCs are capable of capturing RAW10. Add support for it
> using the V4L2_PIX_FMT_Y10 pixel format, which I think is the correct
> format to express RAW10 unpacked to users.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Thanks for your patch!

I am no VIN or V4L2 expert, but the register bits LGTM, so
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

> --- a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
> +++ b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
> @@ -780,6 +782,9 @@ static int rvin_setup(struct rvin_dev *vin)
>         case MEDIA_BUS_FMT_Y8_1X8:
>                 vnmc |= VNMC_INF_RAW8;
>                 break;
> +       case MEDIA_BUS_FMT_Y10_1X10:
> +               vnmc |= VNMC_INF_RGB666;

The actual meaning of this bit is not uniform across all SoCs.
On R-Car V3U it means (partial) 16 bpp, on R-Car Gen3 it means 18 bpp.

> +               break;
>         default:
>                 break;
>         }

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

      reply	other threads:[~2024-04-17 13:35 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-17 12:02 [PATCH] media: rcar-vin: Add support for RAW10 Niklas Söderlund
2024-04-17 13:34 ` Geert Uytterhoeven [this message]

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