From 9d37884a02218ed33d899be13763a2c642a68942 Mon Sep 17 00:00:00 2001 From: Mihail Atanassov Date: Fri, 23 Dec 2016 09:57:20 +0000 Subject: [PATCH] drm: mali-dp: fix Lx_CONTROL register fields clobber 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 Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/malidp_planes.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c index 629f634872a4b..1db8b6977efc2 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -219,7 +219,8 @@ 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) -- 2.39.5