linux-kernel - Re: [PATCH 1/7] media: sun6i-csi: Fix the bpp for 10-bit bayer formats

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Date:   Wed, 26 Aug 2020 11:18:50 +0200
From:   Kévin L'hôpital <kevin.lhopital@...tlin.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Linux Media Mailing List <linux-media@...r.kernel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Yong Deng <yong.deng@...ewell.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 1/7] media: sun6i-csi: Fix the bpp for 10-bit bayer
 formats

Hello,

Le Tue, 25 Aug 2020 23:50:30 +0800,
Chen-Yu Tsai <wens@...e.org> a écrit :

> On Fri, Aug 21, 2020 at 11:00 PM Kévin L'hôpital
> <kevin.lhopital@...tlin.com> wrote:
> >
> > 10-bit bayer formats are aligned to 16 bits in memory, so this is
> > what needs to be used as bpp for calculating the size of the
> > buffers to allocate.
> >
> > Signed-off-by: Kévin L'hôpital <kevin.lhopital@...tlin.com>  
> 
> Please add:
> 
> Fixes: 5cc7522d8965 ("media: sun6i: Add support for Allwinner CSI
> V3s")
> 
> 
I will add this, thank you very much for the review.
Kévin
> 
> > ---
> >  drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h
> > b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h index
> > c626821aaedb..8b83d15de0d0 100644 ---
> > a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h +++
> > b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h @@ -100,7
> > +100,7 @@ static inline int sun6i_csi_get_bpp(unsigned int
> > pixformat) case V4L2_PIX_FMT_SGBRG10: case V4L2_PIX_FMT_SGRBG10:
> >         case V4L2_PIX_FMT_SRGGB10:
> > -               return 10;
> > +               return 16;
> >         case V4L2_PIX_FMT_SBGGR12:
> >         case V4L2_PIX_FMT_SGBRG12:
> >         case V4L2_PIX_FMT_SGRBG12:
> > --
> > 2.17.1
> >  



-- 
Kevin L'Hopital, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com