drm/sun4i: backend: Avoid counting YUV planes that use the frontend (ae56bfbd) · Commits · 戴 / test

Our hardware has a limited number of YUV planes (usually 1) that can be supported using the backend only. However, YUV planes can also be supported by the frontend and must then not be counted when checking for that limitation. Only count the YUV plane when the frontend is not used. Signed-off-by:

Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by:

Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-15-paul.kocialkowski@bootlin.com

drivers/gpu/drm/sun4i/sun4i_backend.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -542,6 +542,11 @@ static int sun4i_backend_atomic_check(struct sunxi_engine *engine,
		DRM_DEBUG_DRIVER("Using the frontend for plane %d\n",
		plane->index);
		num_frontend_planes++;
		} else {
		if (fb->format->is_yuv) {
		DRM_DEBUG_DRIVER("Plane FB format is YUV\n");
		num_yuv_planes++;
		}
		}

		DRM_DEBUG_DRIVER("Plane FB format is %s\n",
		@@ -550,11 +555,6 @@ static int sun4i_backend_atomic_check(struct sunxi_engine *engine,
		if (fb->format->has_alpha \|\| (plane_state->alpha != DRM_BLEND_ALPHA_OPAQUE))
		num_alpha_planes++;

		if (fb->format->is_yuv) {
		DRM_DEBUG_DRIVER("Plane FB format is YUV\n");
		num_yuv_planes++;
		}

		DRM_DEBUG_DRIVER("Plane zpos is %d\n",
		plane_state->normalized_zpos);

Admin message