diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-02-11 08:44:48 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-02-20 08:51:10 -0500 |
| commit | 7ae764b11ed63279e9dcf25be972ff4ca21a9875 (patch) | |
| tree | 3236f83c2b4f1205cbebe73cb12c08e43ff48b7c /drivers/gpu/drm/radeon/evergreen.c | |
| parent | 0e3d50bfcbd338254795a700dcff429a96cba1a6 (diff) | |
drm/radeon: fix multi-head power profile stability on BTC+ asics
vddci needs to track mclk for multi-head.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 2916de896a6..3c38ea46531 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -403,6 +403,19 @@ void evergreen_pm_misc(struct radeon_device *rdev) rdev->pm.current_vddc = voltage->voltage; DRM_DEBUG("Setting: vddc: %d\n", voltage->voltage); } + + /* starting with BTC, there is one state that is used for both + * MH and SH. Difference is that we always use the high clock index for + * mclk and vddci. + */ + if ((rdev->pm.pm_method == PM_METHOD_PROFILE) && + (rdev->family >= CHIP_BARTS) && + rdev->pm.active_crtc_count && + ((rdev->pm.profile_index == PM_PROFILE_MID_MH_IDX) || + (rdev->pm.profile_index == PM_PROFILE_LOW_MH_IDX))) + voltage = &rdev->pm.power_state[req_ps_idx]. + clock_info[rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx].voltage; + /* 0xff01 is a flag rather then an actual voltage */ if (voltage->vddci == 0xff01) return; |