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SubjectRe: [PATCH 03/14] [media] mtk-mipicsi: add color format support for mt2712
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Hi, CK:

On Tue, 2019-04-09 at 14:18 +0800, CK Hu wrote:
> Hi, Stu:
>
> On Mon, 2019-04-08 at 19:54 +0800, Stu Hsieh wrote:
> > This patch add color format support for mt2712
>
> Without this patch, I think this driver still support these color
> format. In this patch, you just check for the non-supported color
> format.
>
> >
> > Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> > ---
> > .../media/platform/mtk-mipicsi/mtk_mipicsi.c | 25 +++++++++++++++++++
> > 1 file changed, 25 insertions(+)
> >
> > diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
> > index a5ed720df900..ccf2d18a3e74 100644
> > --- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
> > +++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
> > @@ -139,6 +139,25 @@ static void mtk_mipicsi_remove_device(struct soc_camera_device *icd)
> > (void)pm_runtime_put_sync(icd->parent);
> > }
> >
> > +static bool is_supported(struct soc_camera_device *icd, const u32 pixformat)
>
> icd is useless, so remove it.
>
> > +{
> > + bool ret = false;
> > +
> > + switch (pixformat) {
> > + /* YUV422 */
> > + case V4L2_PIX_FMT_YUYV:
> > + case V4L2_PIX_FMT_UYVY:
> > + case V4L2_PIX_FMT_YVYU:
> > + case V4L2_PIX_FMT_VYUY:
> > + ret = true;
>
> You could just return true.
>
> > + break;
> > + default:
> > + break;
>
> You don't need the 'default' part.
>
> > + }
> > +
> > + return ret;
>
> You could just return false.
>
> Regards,
> CK
>

Ok, I would modify it in next version.

> > +}
> > +
> > static int mtk_mipicsi_set_fmt(struct soc_camera_device *icd,
> > struct v4l2_format *f)
> > {
> > @@ -154,6 +173,12 @@ static int mtk_mipicsi_set_fmt(struct soc_camera_device *icd,
> > struct v4l2_mbus_framefmt *mf = &format.format;
> > int ret = 0;
> >
> > + if (!is_supported(icd, pix->pixelformat)) {
> > + dev_err(dev, "Format %x not support. set V4L2_PIX_FMT_YUYV as default\n",
> > + pix->pixelformat);
> > + pix->pixelformat = V4L2_PIX_FMT_YUYV;
> > + }
> > +
> > xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
> > if (xlate == NULL) {
> > dev_err(dev, "Format 0x%x not found\n", pix->pixelformat);
>
>


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