drm/radeon/kms/ni: load default sclk/mclk/vddc at pm init

The vbios only partially initializes the memory controller on
NI, so now we need to load the MC ucode in the driver and set
the default clocks once the ucode is loaded.

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

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 9052d1e3a5fe..3b1b2bf9cdd5 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -530,6 +530,15 @@ void radeon_pm_suspend(struct radeon_device *rdev)
 
 void radeon_pm_resume(struct radeon_device *rdev)
 {
+        /* set up the default clocks if the MC ucode is loaded */
+        if (ASIC_IS_DCE5(rdev) && rdev->mc_fw) {
+                if (rdev->pm.default_vddc)
+                        radeon_atom_set_voltage(rdev, rdev->pm.default_vddc);
+                if (rdev->pm.default_sclk)
+                        radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
+                if (rdev->pm.default_mclk)
+                        radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
+        }
         /* asic init will reset the default power state */
         mutex_lock(&rdev->pm.mutex);
         rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
@@ -571,6 +580,15 @@ int radeon_pm_init(struct radeon_device *rdev)
                         radeon_combios_get_power_modes(rdev);
                 radeon_pm_print_states(rdev);
                 radeon_pm_init_profile(rdev);
+                /* set up the default clocks if the MC ucode is loaded */
+                if (ASIC_IS_DCE5(rdev) && rdev->mc_fw) {
+                        if (rdev->pm.default_vddc)
+                                radeon_atom_set_voltage(rdev, rdev->pm.default_vddc);
+                        if (rdev->pm.default_sclk)
+                                radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
+                        if (rdev->pm.default_mclk)
+                                radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
+                }
         }
 
         /* set up the internal thermal sensor if applicable */