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drm: mali-dp: fix Lx_CONTROL register fields clobber

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[ Upstream commit c7ffa59cf0 ]

When updating the rotation fields, one of the assignments zeroes out the
rest of the register fields, which include settings for chroma siting,
inverse gamma, AMBA AXI caching, and alpha blending.

Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mihail Atanassov
2016-12-23 09:57:20 +00:00
committed by Greg Kroah-Hartman
parent 9c9040a859
commit 6bcd1787b5
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/arm/malidp_planes.c
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@@ -182,7 +182,8 @@ static void malidp_de_plane_update(struct drm_plane *plane,
/* setup the rotation and axis flip bits */
if (plane->state->rotation & DRM_ROTATE_MASK)
val = ilog2(plane->state->rotation & DRM_ROTATE_MASK) << LAYER_ROT_OFFSET;
val |= ilog2(plane->state->rotation & DRM_ROTATE_MASK) <<
LAYER_ROT_OFFSET;
if (plane->state->rotation & DRM_REFLECT_X)
val |= LAYER_H_FLIP;
if (plane->state->rotation & DRM_REFLECT_Y)