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@xxxxxxx> > > > --- > > > 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 -- Maxime Ripard, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com
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