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authorAlex Deucher <alexander.deucher@amd.com>2015-03-04 01:00:43 +0300
committerAlex Deucher <alexander.deucher@amd.com>2015-03-04 01:28:31 +0300
commit77ae5f4b48a0445426c9c1ef7c0f28b717e35d55 (patch)
treecc426d61623f4243e8834a8c815cc04d46b8086a /drivers/gpu/drm/radeon/atombios_crtc.c
parenta28b2a47edcd0cb7c051b445f71a426000394606 (diff)
downloadlinux-77ae5f4b48a0445426c9c1ef7c0f28b717e35d55.tar.xz
drm/radeon: fix interlaced modes on DCE8
Need to double the viewport height. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_crtc.c')
-rw-r--r--drivers/gpu/drm/radeon/atombios_crtc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index ed644a4f6f57..86807ee91bd1 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1405,6 +1405,9 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
(x << 16) | y);
viewport_w = crtc->mode.hdisplay;
viewport_h = (crtc->mode.vdisplay + 1) & ~1;
+ if ((rdev->family >= CHIP_BONAIRE) &&
+ (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE))
+ viewport_h *= 2;
WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
(viewport_w << 16) | viewport_h);