Commit e6245fc7 authored by Philipp Zabel's avatar Philipp Zabel Committed by Greg Kroah-Hartman
Browse files

imx-drm: ipuv3-plane: allow local alpha in ipu_plane_mode_set() 



For the overlay plane scanning out a framebuffer with an alpha component,
enable the DP local alpha feature on the partial plane.

Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent eb3a1323

drivers/staging/imx-drm/ipuv3-plane.c

+10 −2
Original line number Diff line number Diff line
@@ -148,14 +148,22 @@ int ipu_plane_mode_set(struct ipu_plane *ipu_plane, struct drm_crtc *crtc, 
				ret);

			return ret;

		}

		ipu_dp_set_global_alpha(ipu_plane->dp, 1, 0, 1);

		ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);

		break;

	case IPU_DP_FLOW_SYNC_FG:

		ipu_dp_setup_channel(ipu_plane->dp,

				ipu_drm_fourcc_to_colorspace(fb->pixel_format),

				IPUV3_COLORSPACE_UNKNOWN);

		ipu_dp_set_window_pos(ipu_plane->dp, crtc_x, crtc_y);

		/* Enable local alpha on partial plane */

		switch (fb->pixel_format) {

		case DRM_FORMAT_ARGB8888:

		case DRM_FORMAT_ABGR8888:

			ipu_dp_set_global_alpha(ipu_plane->dp, false, 0, false);

			break;

		default:

			break;

		}

	}



	ret = ipu_dmfc_init_channel(ipu_plane->dmfc, crtc_w);