drm/radeon/dpm: re-enable state transitions for Cayman

Was disabled due to stability issues on certain boards
caused by the a bug in the parsing of the atom mc reg tables.
That's fixed now so re-enable.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index 777d17e..4712851 100644 (file)
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -1036,7 +1036,6 @@ static int ni_restrict_performance_levels_before_switch(struct radeon_device *rd
                0 : -EINVAL;
 }
 
-#if 0
 static int ni_unrestrict_performance_levels_after_switch(struct radeon_device *rdev)
 {
        if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK)
@@ -1045,7 +1044,6 @@ static int ni_unrestrict_performance_levels_after_switch(struct radeon_device *r
        return (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) == PPSMC_Result_OK) ?
                0 : -EINVAL;
 }
-#endif
 
 static void ni_stop_smc(struct radeon_device *rdev)
 {
@@ -3832,14 +3830,11 @@ int ni_dpm_set_power_state(struct radeon_device *rdev)
                return ret;
        }
 
-#if 0
-       /* XXX */
        ret = ni_unrestrict_performance_levels_after_switch(rdev);
        if (ret) {
                DRM_ERROR("ni_unrestrict_performance_levels_after_switch failed\n");
                return ret;
        }
-#endif
 
        return 0;
 }