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drm/radeon/TN: only enable bapm on MSI systems 

There still seem to be stability problems with other systems.

Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=72921

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-07-21 10:41:13 -04:00
parent cc9e67e3d7
commit 730a336c33
1 changed files with 8 additions and 7 deletions
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15
drivers/gpu/drm/radeon/trinity_dpm.c
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@ -1874,15 +1874,16 @@ int trinity_dpm_init(struct radeon_device *rdev)
for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++)
pi->at[i] = TRINITY_AT_DFLT;
/* There are stability issues reported on latops with
* bapm installed when switching between AC and battery
* power. At the same time, some desktop boards hang
* if it's not enabled and dpm is enabled.
/* There are stability issues reported on with
* bapm enabled when switching between AC and battery
* power. At the same time, some MSI boards hang
* if it's not enabled and dpm is enabled. Just enable
* it for MSI boards right now.
*/
if (rdev->flags & RADEON_IS_MOBILITY)
pi->enable_bapm = false;
else
if (rdev->pdev->subsystem_vendor == 0x1462)
pi->enable_bapm = true;
else
pi->enable_bapm = false;
pi->enable_nbps_policy = true;
pi->enable_sclk_ds = true;
pi->enable_gfx_power_gating = true;