4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit 0e5585dc870af947fab2af96a88c2d8b4270247c upstream.
Higher mclk values are not stable due to a bug somewhere.
Limit them for now.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/si_dpm.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -3010,6 +3010,10 @@ static void si_apply_state_adjust_rules(
}
++p;
}
+ /* limit mclk on all R7 370 parts for stability */
+ if (rdev->pdev->device == 0x6811 &&
+ rdev->pdev->revision == 0x81)
+ max_mclk = 120000;
if (rps->vce_active) {
rps->evclk = rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].evclk;
--
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