diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-01-13 16:47:05 -0500 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-04-02 00:58:44 +0100 |
| commit | 03ee9dc36ecb95b78f91ad111d9340ec37efe969 (patch) | |
| tree | 3e575f43eb6f09de91a3c11e5be3af5872691e86 /drivers/gpu | |
| parent | c9ae63f0c5fe163f200e6517c0a3e0d8721145bf (diff) | |
drm/radeon: disable ss on DP for DCE3.x
commit d8e24525094200601236fa64a54cf73e3d682f2e upstream.
Seems to cause problems with certain DP monitors.
Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=40699
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[bwh: Backported to 3.2: s/radeon_crtc->//]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 038570aadf7..cd98c061825 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -956,10 +956,13 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode ss_enabled = radeon_atombios_get_ppll_ss_info(rdev, &ss, ATOM_DP_SS_ID1); - } else + } else { ss_enabled = radeon_atombios_get_ppll_ss_info(rdev, &ss, ATOM_DP_SS_ID1); + } + /* disable spread spectrum on DCE3 DP */ + ss_enabled = false; } break; case ATOM_ENCODER_MODE_LVDS: |