drm/radeon/kms/pm: track current voltage (v2)

track the current voltage level and avoid setting it
if the requested voltage is already set.

v2: check voltage type before checking current voltage

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index fcdf1db1e3ce..f2e1c60afda5 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -387,6 +387,7 @@ void radeon_pm_resume(struct radeon_device *rdev)
         rdev->pm.current_clock_mode_index = 0;
         rdev->pm.current_sclk = rdev->clock.default_sclk;
         rdev->pm.current_mclk = rdev->clock.default_mclk;
+        rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
         mutex_unlock(&rdev->pm.mutex);
         radeon_pm_compute_clocks(rdev);
 }