From 2b02a05bdc3a62d36e0d0b015351897109e25991 Mon Sep 17 00:00:00 2001
From: Boris Brezillon <boris.brezillon@bootlin.com>
Date: Tue, 9 Oct 2018 15:24:46 +0200
Subject: drm/vc4: Set ->is_yuv to false when num_planes == 1
Git-commit: 2b02a05bdc3a62d36e0d0b015351897109e25991
Patch-mainline: v5.0-rc1
References: bsc#1113722

When vc4_plane_state is duplicated ->is_yuv is left assigned to its
previous value, and we never set it back to false when switching to
a non-YUV format.

Fix that by setting ->is_yuv to false in the 'num_planes == 1' branch
of the vc4_plane_setup_clipping_and_scaling() function.

Fixes: fc04023fafecf ("drm/vc4: Add support for YUV planes.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20181009132446.21960-1-boris.brezillon@bootlin.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/vc4/vc4_plane.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index d93045fee7b3..98fae4daa08c 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -348,6 +348,7 @@ static int vc4_plane_setup_clipping_and_scaling(struct drm_plane_state *state)
 		if (vc4_state->is_unity)
 			vc4_state->x_scaling[0] = VC4_SCALING_PPF;
 	} else {
+		vc4_state->is_yuv = false;
 		vc4_state->x_scaling[1] = VC4_SCALING_NONE;
 		vc4_state->y_scaling[1] = VC4_SCALING_NONE;
 	}
-- 
2.19.2