linux-kernel - Re: [PATCH v6 5/5] arm64: defconfig: enable VIDEO

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Date:   Thu, 8 Jul 2021 18:34:32 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Guido Günther <guido.gunther@...i.sm>
Cc:     Sakari Ailus <sakari.ailus@....fi>,
        Martin Kepplinger <martin.kepplinger@...i.sm>,
        krzysztof.kozlowski@...onical.com, devicetree@...r.kernel.org,
        kernel@...i.sm, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, mchehab@...nel.org,
        paul.kocialkowski@...tlin.com, pavel@....cz,
        phone-devel@...r.kernel.org, robh@...nel.org, shawnx.tu@...el.com
Subject: Re: [PATCH v6 5/5] arm64: defconfig: enable VIDEO_HI846

Hi Guido,

On Thu, Jul 08, 2021 at 05:13:13PM +0200, Guido Günther wrote:
> On Thu, Jul 08, 2021 at 04:00:04PM +0300, Sakari Ailus wrote:
> > On Mon, Jun 28, 2021 at 12:10:54PM +0200, Martin Kepplinger wrote:
> > > Build the driver for the Hi-846 camera by default on arm64 where it's
> > > going to be used on at least the imx8mq-librem5 board.
> > > 
> > > Signed-off-by: Martin Kepplinger <martin.kepplinger@...i.sm>
> > > ---
> > >  arch/arm64/configs/defconfig | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> > > index f423d08b9a71..bf27d9cfbdd5 100644
> > > --- a/arch/arm64/configs/defconfig
> > > +++ b/arch/arm64/configs/defconfig
> > > @@ -666,6 +666,7 @@ CONFIG_VIDEO_RENESAS_VSP1=m
> > >  CONFIG_VIDEO_QCOM_VENUS=m
> > >  CONFIG_SDR_PLATFORM_DRIVERS=y
> > >  CONFIG_VIDEO_RCAR_DRIF=m
> > > +CONFIG_VIDEO_HI846=m
> > >  CONFIG_VIDEO_IMX219=m
> > >  CONFIG_VIDEO_OV5645=m
> > >  CONFIG_VIDEO_QCOM_CAMSS=m
> > 
> > The same sensor may be or may not used on a given board (and certainly it's
> > not specific to arm64). Is it desirable all arm64 systems compile this in
> > by default?
> > 
> > There appear to be a other sensor drivers though.
> > 
> > Is there a defconfig for the librem5 board?
> 
> arm64 has a single defconfig, there are no board specific ones (and
> afaik they're not wanted either) so I think enabling it as a module is
> the only way.

Do sensor drivers qualify for defconfig support though ? If they do,
they should all be enabled.

> > I wonder what others think.

-- 
Regards,

Laurent Pinchart