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.h b/drivers/gpu/drm/radeon/radeon.h
index 2ad0e0304294..8e1d44ca26ec 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -748,6 +748,7 @@ struct radeon_pm {
         int                     default_power_state_index;
         u32                     current_sclk;
         u32                     current_mclk;
+        u32                     current_vddc;
         struct radeon_i2c_chan *i2c_bus;
         /* selected pm method */
         enum radeon_pm_method     pm_method;