Commit a377e187 authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie

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: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 4ee1c57f
......@@ -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;
......
......@@ -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;
......
......@@ -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;
......
......@@ -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;
......
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