releases/4.4.152/drm-exynos-decon5433-fix-per-plane-global-alpha-for-xrgb-modes.patch

   1 From foo@baz Wed Aug 22 10:28:26 CEST 2018
   2 From: Marek Szyprowski <m.szyprowski@samsung.com>
   3 Date: Thu, 7 Jun 2018 13:07:40 +0200
   4 Subject: drm/exynos: decon5433: Fix per-plane global alpha for XRGB modes
   5
   6 From: Marek Szyprowski <m.szyprowski@samsung.com>
   7
   8 [ Upstream commit ab337fc274a1957ff0771f19e826c736253f7c39 ]
   9
  10 Set per-plane global alpha to maximum value to get proper blending of
  11 XRGB and ARGB planes. This fixes the strange order of overlapping planes.
  12
  13 Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
  14 Signed-off-by: Inki Dae <inki.dae@samsung.com>
  15 Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
  16 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  17 ---
  18  drivers/gpu/drm/exynos/exynos5433_drm_decon.c |    4 ++--
  19  1 file changed, 2 insertions(+), 2 deletions(-)
  20
  21 --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
  22 +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
  23 @@ -278,8 +278,8 @@ static void decon_update_plane(struct ex
  24                 COORDINATE_Y(plane->crtc_y + plane->crtc_h - 1);
  25         writel(val, ctx->addr + DECON_VIDOSDxB(win));
  26
  27 -       val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
  28 -               VIDOSD_Wx_ALPHA_B_F(0x0);
  29 +       val = VIDOSD_Wx_ALPHA_R_F(0xff) | VIDOSD_Wx_ALPHA_G_F(0xff) |
  30 +               VIDOSD_Wx_ALPHA_B_F(0xff);
  31         writel(val, ctx->addr + DECON_VIDOSDxC(win));
  32
  33         val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |