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drm/vc4: Reset ->{x, y}_scaling[1] when dealing with uniplanar formats
This is needed to ensure ->is_unity is correct when the plane was
previously configured to output a multi-planar format with scaling
enabled, and is then being reconfigured to output a uniplanar format.
Fixes: fc04023faf
("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/20180724133601.32114-1-boris.brezillon@bootlin.com
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1 changed files with 3 additions and 0 deletions
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@ -320,6 +320,9 @@ static int vc4_plane_setup_clipping_and_scaling(struct drm_plane_state *state)
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vc4_state->x_scaling[0] = VC4_SCALING_TPZ;
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if (vc4_state->y_scaling[0] == VC4_SCALING_NONE)
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vc4_state->y_scaling[0] = VC4_SCALING_TPZ;
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} else {
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vc4_state->x_scaling[1] = VC4_SCALING_NONE;
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vc4_state->y_scaling[1] = VC4_SCALING_NONE;
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}
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vc4_state->is_unity = (vc4_state->x_scaling[0] == VC4_SCALING_NONE &&
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