| Message ID | 1476872477-29493-1-git-send-email-p.zabel@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Oct 19, 2016 at 6:21 PM, Philipp Zabel <p.zabel@pengutronix.de> wrote: > Odd x/y offsets are not allowed for horizontally/vertically chroma > subsampled planar YUV formats. > > Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Liu Ying <gnuiyl@gmail.com> > --- > Changes since v1: > - Improve comment > --- > drivers/gpu/drm/imx/ipuv3-plane.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c > index 5c34299..e1ad844 100644 > --- a/drivers/gpu/drm/imx/ipuv3-plane.c > +++ b/drivers/gpu/drm/imx/ipuv3-plane.c > @@ -259,6 +259,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane, > struct drm_framebuffer *fb = state->fb; > struct drm_framebuffer *old_fb = old_state->fb; > unsigned long eba, ubo, vbo, old_ubo, old_vbo; > + int hsub, vsub; > > /* Ok to disable */ > if (!fb) > @@ -372,6 +373,16 @@ static int ipu_plane_atomic_check(struct drm_plane *plane, > > if (old_fb && old_fb->pitches[1] != fb->pitches[1]) > crtc_state->mode_changed = true; > + > + /* > + * The x/y offsets must be even in case of horizontal/vertical > + * chroma subsampling. > + */ > + hsub = drm_format_horz_chroma_subsampling(fb->pixel_format); > + vsub = drm_format_vert_chroma_subsampling(fb->pixel_format); > + if (((state->src_x >> 16) & (hsub - 1)) || > + ((state->src_y >> 16) & (vsub - 1))) > + return -EINVAL; > } > > return 0; > -- > 2.9.3 >
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 5c34299..e1ad844 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -259,6 +259,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane, struct drm_framebuffer *fb = state->fb; struct drm_framebuffer *old_fb = old_state->fb; unsigned long eba, ubo, vbo, old_ubo, old_vbo; + int hsub, vsub; /* Ok to disable */ if (!fb) @@ -372,6 +373,16 @@ static int ipu_plane_atomic_check(struct drm_plane *plane, if (old_fb && old_fb->pitches[1] != fb->pitches[1]) crtc_state->mode_changed = true; + + /* + * The x/y offsets must be even in case of horizontal/vertical + * chroma subsampling. + */ + hsub = drm_format_horz_chroma_subsampling(fb->pixel_format); + vsub = drm_format_vert_chroma_subsampling(fb->pixel_format); + if (((state->src_x >> 16) & (hsub - 1)) || + ((state->src_y >> 16) & (vsub - 1))) + return -EINVAL; } return 0;
Odd x/y offsets are not allowed for horizontally/vertically chroma subsampled planar YUV formats. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> --- Changes since v1: - Improve comment --- drivers/gpu/drm/imx/ipuv3-plane.c | 11 +++++++++++ 1 file changed, 11 insertions(+)