On Tue, Jan 24, 2017 at 9:35 AM, Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx> wrote:
>
> Hi, Daniel,
>
> Thanks for your comment.
>
> On Tue, 2017-01-03 at 14:27 +0800, Daniel Kurtz wrote:
> > On Fri, Dec 30, 2016 at 2:26 PM, Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx> wrote:
> > >
> > > MT8173 overlay can support UYVY and YUYV format,
> > > we add the format in DRM driver.
> > >
> > > Signed-off-by: Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx>
> > > Reviewed-by: Daniel Kurtz <djkurtz@xxxxxxxxxxxx>
> > > ---
> > > drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 21 +++++++++++++++++++++
> > > drivers/gpu/drm/mediatek/mtk_drm_plane.c | 2 ++
> > > 2 files changed, 23 insertions(+)
> > >
> > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > index c703102..de05845 100644
> > > --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> > > @@ -40,10 +40,13 @@
> > > #define OVL_RDMA_MEM_GMC 0x40402020
> > >
> > > #define OVL_CON_BYTE_SWAP BIT(24)
> > > +#define OVL_CON_MTX_YUV_TO_RGB (6 << 16)
> > > #define OVL_CON_CLRFMT_RGB565 (0 << 12)
> > > #define OVL_CON_CLRFMT_RGB888 (1 << 12)
> > > #define OVL_CON_CLRFMT_RGBA8888 (2 << 12)
> > > #define OVL_CON_CLRFMT_ARGB8888 (3 << 12)
> > > +#define OVL_CON_CLRFMT_UYVY (4 << 12)
> > > +#define OVL_CON_CLRFMT_YUYV (5 << 12)
> >
> > Why not just add " | OVL_CON_MTX_YUV_TO_RGB" here in the definition of
> > these two constants, instead of adding a helper function?
> >
> > > #define OVL_CON_AEN BIT(8)
> > > #define OVL_CON_ALPHA 0xff
> > >
> > > @@ -162,6 +165,21 @@ static unsigned int ovl_fmt_convert(unsigned int fmt)
> > > case DRM_FORMAT_XBGR8888:
> > > case DRM_FORMAT_ABGR8888:
> > > return OVL_CON_CLRFMT_RGBA8888 | OVL_CON_BYTE_SWAP;
> > > + case DRM_FORMAT_UYVY:
> > > + return OVL_CON_CLRFMT_UYVY;
> > > + case DRM_FORMAT_YUYV:
> > > + return OVL_CON_CLRFMT_YUYV;
> > > + }
> > > +}
> How about adding " | OVL_CON_MTX_YUV_TO_RGB" after here in "return
> OVL_CON_CLRFMT_UYVY" and "return OVL_CON_CLRFMT_YUYV" ??
Sounds good to me.
> > > +
> > > +static bool ovl_yuv_space(unsigned int fmt)
> > > +{
> > > + switch (fmt) {
> > > + case DRM_FORMAT_UYVY:
> > > + case DRM_FORMAT_YUYV:
> > > + return true;
> > > + default:
> > > + return false;
> > > }
> > > }
> > >
> > > @@ -183,6 +201,9 @@ static void mtk_ovl_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
> > > if (idx != 0)
> > > con |= OVL_CON_AEN | OVL_CON_ALPHA;
> > >
> > > + if (ovl_yuv_space(fmt))
> > > + con |= OVL_CON_MTX_YUV_TO_RGB;
> > > +
> > > writel_relaxed(con, comp->regs + DISP_REG_OVL_CON(idx));
> > > writel_relaxed(pitch, comp->regs + DISP_REG_OVL_PITCH(idx));
> > > writel_relaxed(src_size, comp->regs + DISP_REG_OVL_SRC_SIZE(idx));
> > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> > > index c461a23..8c02d1d 100644
> > > --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> > > +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> > > @@ -28,6 +28,8 @@
> > > DRM_FORMAT_XRGB8888,
> > > DRM_FORMAT_ARGB8888,
> > > DRM_FORMAT_RGB565,
> > > + DRM_FORMAT_UYVY,
> > > + DRM_FORMAT_YUYV,
> > > };
> > >
> > > static void mtk_plane_reset(struct drm_plane *plane)
> > > --
> > > 1.9.1
> > >
>
> --
> Bibby
>
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