From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Fri, 5 Aug 2016 11:55:18 +0200
Subject: drm/imx: ipuv3-plane: fix YUV framebuffer scanout on the base plane
Git-commit: 5be5dd38d4628fdbff7359f235f7cdf0cf9655f1
Patch-mainline: v4.13-rc7
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Historically, only RGB framebuffers could be assigned to the primary
plane. This changed with universal plane support. Since no colorspace
conversion was set up for the IPUv3 full plane, assigning YUV frame
buffers to the primary plane caused incorrect output.
Fix this by enabling color space conversion also for the primary plane.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/imx/ipuv3-plane.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -545,15 +545,13 @@ static void ipu_plane_atomic_update(stru
 		return;
 	}
 
+	ics = ipu_drm_fourcc_to_colorspace(fb->format->format);
 	switch (ipu_plane->dp_flow) {
 	case IPU_DP_FLOW_SYNC_BG:
-		ipu_dp_setup_channel(ipu_plane->dp,
-					IPUV3_COLORSPACE_RGB,
-					IPUV3_COLORSPACE_RGB);
+		ipu_dp_setup_channel(ipu_plane->dp, ics, IPUV3_COLORSPACE_RGB);
 		ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);
 		break;
 	case IPU_DP_FLOW_SYNC_FG:
-		ics = ipu_drm_fourcc_to_colorspace(state->fb->format->format);
 		ipu_dp_setup_channel(ipu_plane->dp, ics,
 					IPUV3_COLORSPACE_UNKNOWN);
 		/* Enable local alpha on partial plane */