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authorAlex Deucher <alexander.deucher@amd.com>2013-02-11 17:44:48 +0400
committerAlex Deucher <alexander.deucher@amd.com>2013-02-20 17:51:10 +0400
commit7ae764b11ed63279e9dcf25be972ff4ca21a9875 (patch)
tree3236f83c2b4f1205cbebe73cb12c08e43ff48b7c /drivers/gpu/drm
parent0e3d50bfcbd338254795a700dcff429a96cba1a6 (diff)
downloadlinux-7ae764b11ed63279e9dcf25be972ff4ca21a9875.tar.xz
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')
-rw-r--r--drivers/gpu/drm/radeon/evergreen.c13
-rw-r--r--drivers/gpu/drm/radeon/radeon_pm.c2
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 2916de896a60..3c38ea46531c 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;
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 0bfa656aa87d..338fd6a74e87 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -169,7 +169,7 @@ static void radeon_set_power_state(struct radeon_device *rdev)
/* 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.
+ * mclk and vddci.
*/
if ((rdev->pm.pm_method == PM_METHOD_PROFILE) &&
(rdev->family >= CHIP_BARTS) &&