| Message ID | 20180720211509.23605-10-alexandru-cosmin.gheorghe@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Jul 20, 2018 at 10:15:08PM +0100, Alexandru Gheorghe wrote: > Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com> > --- > drivers/gpu/drm/vc4/vc4_plane.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c > index 9d7a36f148cf..688ad9bb0f08 100644 > --- a/drivers/gpu/drm/vc4/vc4_plane.c > +++ b/drivers/gpu/drm/vc4/vc4_plane.c > @@ -200,9 +200,7 @@ static void vc4_plane_reset(struct drm_plane *plane) > if (!vc4_state) > return; > > - plane->state = &vc4_state->base; > - plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE; > - vc4_state->base.plane = plane; > + __drm_atomic_helper_plane_reset(plane, &vc4_state->base); For vc4, rcar-du, atmel-hlcdc and sun4i, you're changing the reset value of alpha from DRM_BLEND_ALPHA_OPAQUE to plane->alpha_property->values[1]. This might or might not be a good idea, but you should definitely explain why. Maxime
Hi Maxime, On Tue, Jul 24, 2018 at 08:57:20AM +0200, Maxime Ripard wrote: > On Fri, Jul 20, 2018 at 10:15:08PM +0100, Alexandru Gheorghe wrote: > > Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com> > > --- > > drivers/gpu/drm/vc4/vc4_plane.c | 4 +--- > > 1 file changed, 1 insertion(+), 3 deletions(-) > > > > diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c > > index 9d7a36f148cf..688ad9bb0f08 100644 > > --- a/drivers/gpu/drm/vc4/vc4_plane.c > > +++ b/drivers/gpu/drm/vc4/vc4_plane.c > > @@ -200,9 +200,7 @@ static void vc4_plane_reset(struct drm_plane *plane) > > if (!vc4_state) > > return; > > > > - plane->state = &vc4_state->base; > > - plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE; > > - vc4_state->base.plane = plane; > > + __drm_atomic_helper_plane_reset(plane, &vc4_state->base); > > For vc4, rcar-du, atmel-hlcdc and sun4i, you're changing the reset > value of alpha from DRM_BLEND_ALPHA_OPAQUE to > plane->alpha_property->values[1]. plane->alpha_property->values[1] holds the max value for alpha, and it's initialized by the core to DRM_BLEND_ALPHA_OPAQUE. > > This might or might not be a good idea, but you should definitely > explain why. Would a commit message suffice? Or do you have other ideas? > > Maxime > > -- > Maxime Ripard, Bootlin (formerly Free Electrons) > Embedded Linux and Kernel engineering > https://bootlin.com
On Tue, Jul 24, 2018 at 09:11:21AM +0100, Alexandru-Cosmin Gheorghe wrote: > Hi Maxime, > > On Tue, Jul 24, 2018 at 08:57:20AM +0200, Maxime Ripard wrote: > > On Fri, Jul 20, 2018 at 10:15:08PM +0100, Alexandru Gheorghe wrote: > > > Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com> > > > --- > > > drivers/gpu/drm/vc4/vc4_plane.c | 4 +--- > > > 1 file changed, 1 insertion(+), 3 deletions(-) > > > > > > diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c > > > index 9d7a36f148cf..688ad9bb0f08 100644 > > > --- a/drivers/gpu/drm/vc4/vc4_plane.c > > > +++ b/drivers/gpu/drm/vc4/vc4_plane.c > > > @@ -200,9 +200,7 @@ static void vc4_plane_reset(struct drm_plane *plane) > > > if (!vc4_state) > > > return; > > > > > > - plane->state = &vc4_state->base; > > > - plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE; > > > - vc4_state->base.plane = plane; > > > + __drm_atomic_helper_plane_reset(plane, &vc4_state->base); > > > > For vc4, rcar-du, atmel-hlcdc and sun4i, you're changing the reset > > value of alpha from DRM_BLEND_ALPHA_OPAQUE to > > plane->alpha_property->values[1]. > > plane->alpha_property->values[1] holds the max value for alpha, and > it's initialized by the core to DRM_BLEND_ALPHA_OPAQUE. > > > > > This might or might not be a good idea, but you should definitely > > explain why. > > Would a commit message suffice? Or do you have other ideas? Yes, that would be enough. Maxime
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index 9d7a36f148cf..688ad9bb0f08 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -200,9 +200,7 @@ static void vc4_plane_reset(struct drm_plane *plane) if (!vc4_state) return; - plane->state = &vc4_state->base; - plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE; - vc4_state->base.plane = plane; + __drm_atomic_helper_plane_reset(plane, &vc4_state->base); } static void vc4_dlist_write(struct vc4_plane_state *vc4_state, u32 val)
Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com> --- drivers/gpu/drm/vc4/vc4_plane.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)