diff options
| 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 | |
| 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')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_atombios.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rv770.c | 3 |
4 files changed, 16 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; diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index dc9fde38ef49..f79d2ccb6755 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -590,6 +590,9 @@ void r600_pm_misc(struct radeon_device *rdev) struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage; if ((voltage->type == VOLTAGE_SW) && voltage->voltage) { + /* 0xff01 is a flag rather then an actual voltage */ + if (voltage->voltage == 0xff01) + return; if (voltage->voltage != rdev->pm.current_vddc) { radeon_atom_set_voltage(rdev, voltage->voltage, SET_VOLTAGE_TYPE_ASIC_VDDC); rdev->pm.current_vddc = voltage->voltage; diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index fa62a503ae70..1e725d9f767f 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -2607,6 +2607,10 @@ void radeon_atom_set_voltage(struct radeon_device *rdev, u16 voltage_level, u8 v if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev)) return; + /* 0xff01 is a flag rather then an actual voltage */ + if (voltage_level == 0xff01) + return; + switch (crev) { case 1: args.v1.ucVoltageType = voltage_type; diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index ef8a5babe9f7..6f508ffd1035 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -105,6 +105,9 @@ void rv770_pm_misc(struct radeon_device *rdev) struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage; if ((voltage->type == VOLTAGE_SW) && voltage->voltage) { + /* 0xff01 is a flag rather then an actual voltage */ + if (voltage->voltage == 0xff01) + return; if (voltage->voltage != rdev->pm.current_vddc) { radeon_atom_set_voltage(rdev, voltage->voltage, SET_VOLTAGE_TYPE_ASIC_VDDC); rdev->pm.current_vddc = voltage->voltage; |