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drm/vc4: Fix scaling of uni-planar formats

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commit 9a0e9802217291e54c4dd1fc5462f189a4be14ec upstream.

When using uni-planar formats (like RGB), the scaling parameters are
stored in plane 0, not plane 1.

Fixes: fc04023fafec ("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/20180507121303.5610-1-boris.brezillon@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Boris Brezillon 2018-05-07 14:13:03 +02:00 committed by Greg Kroah-Hartman
parent d2901e247b
commit 2b2b00374a
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/vc4/vc4_plane.c
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@ -535,7 +535,7 @@ static int vc4_plane_mode_set(struct drm_plane *plane,
* the scl fields here.
*/
if (num_planes == 1) {
scl0 = vc4_get_scl_field(state, 1);
scl0 = vc4_get_scl_field(state, 0);
scl1 = scl0;
} else {
scl0 = vc4_get_scl_field(state, 1);