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authorAlex Deucher <alexander.deucher@amd.com>2013-07-08 12:15:11 -0400
committerAlex Deucher <alexander.deucher@amd.com>2013-07-08 17:41:11 -0400
commitf4dec31861e938267d41a962f145edc7d81c8e92 (patch)
tree897575f0e233182232512d0eecf9d7d36d88b55a /drivers/gpu/drm/radeon/si_dpm.c
parent76ad73e549ff39cbb235dae3a14902bb6ca12d53 (diff)
drm/radeon/dpm: implement vblank_too_short callback for si
Check if we can switch the mclk during the vblank time otherwise we may get artifacts on the screen when the mclk changes. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/si_dpm.c')
-rw-r--r--drivers/gpu/drm/radeon/si_dpm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index 700a167be36..73aaa2e4c31 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -2906,7 +2906,8 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
u16 vddc, vddci;
int i;
- if (rdev->pm.dpm.new_active_crtc_count > 1)
+ if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
+ ni_dpm_vblank_too_short(rdev))
disable_mclk_switching = true;
else
disable_mclk_switching = false;