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drm/radeon/dpm: fix forcing performance state to low on cayman
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Need to program EnabledLevels to 1 to force the low state.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Alex Deucher committed Jul 29, 2013
1 parent 20fab64 commit f86d026
Showing 1 changed file with 1 addition and 6 deletions.
7 changes: 1 addition & 6 deletions drivers/gpu/drm/radeon/ni_dpm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1054,10 +1054,6 @@ static int ni_restrict_performance_levels_before_switch(struct radeon_device *rd
int ni_dpm_force_performance_level(struct radeon_device *rdev,
enum radeon_dpm_forced_level level)
{
struct radeon_ps *rps = rdev->pm.dpm.current_ps;
struct ni_ps *ps = ni_get_ps(rps);
u32 levels;

if (level == RADEON_DPM_FORCED_LEVEL_HIGH) {
if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) != PPSMC_Result_OK)
return -EINVAL;
Expand All @@ -1068,8 +1064,7 @@ int ni_dpm_force_performance_level(struct radeon_device *rdev,
if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK)
return -EINVAL;

levels = ps->performance_level_count - 1;
if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, levels) != PPSMC_Result_OK)
if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 1) != PPSMC_Result_OK)
return -EINVAL;
} else if (level == RADEON_DPM_FORCED_LEVEL_AUTO) {
if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK)
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