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| author | Alex Deucher <alexdeucher@gmail.com> | 2011-06-20 13:00:31 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-06-21 09:38:25 +1000 |
| commit | a377e187df725fe7e62d2cec59ec290c5a605d93 (patch) | |
| tree | 409fa226c729259d9ce2dc78d261711d0373bb1b /drivers/gpu/drm/radeon/evergreen.c | |
| parent | 4ee1c57fcadfb79a6515698d8001081b5b980e32 (diff) | |
| download | lwn-a377e187df725fe7e62d2cec59ec290c5a605d93.tar.gz lwn-a377e187df725fe7e62d2cec59ec290c5a605d93.zip | |
drm/radeon/kms/r6xx+: voltage fixes
0xff01 is not an actual voltage value, but a flag
for the driver. If the power state as that value,
skip setting the voltage.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 7162b7bacac0..445af7981637 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -140,11 +140,17 @@ void evergreen_pm_misc(struct radeon_device *rdev) struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage; if (voltage->type == VOLTAGE_SW) { + /* 0xff01 is a flag rather then an actual voltage */ + if (voltage->voltage == 0xff01) + return; if (voltage->voltage && (voltage->voltage != rdev->pm.current_vddc)) { radeon_atom_set_voltage(rdev, voltage->voltage, SET_VOLTAGE_TYPE_ASIC_VDDC); rdev->pm.current_vddc = voltage->voltage; DRM_DEBUG("Setting: vddc: %d\n", voltage->voltage); } + /* 0xff01 is a flag rather then an actual voltage */ + if (voltage->vddci == 0xff01) + return; if (voltage->vddci && (voltage->vddci != rdev->pm.current_vddci)) { radeon_atom_set_voltage(rdev, voltage->vddci, SET_VOLTAGE_TYPE_ASIC_VDDCI); rdev->pm.current_vddci = voltage->vddci; |