drm/radeon/kms/pm: add support for no display power states
The lowest power states often cause display problems, so only enable
them when all displays are off.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 75c825c..08a328c 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -120,7 +120,7 @@
} else {
if (rdev->pm.active_crtc_count > 1) {
for (i = 0; i < rdev->pm.num_power_states; i++) {
- if (rdev->pm.power_state[i].flags & RADEON_PM_SINGLE_DISPLAY_ONLY)
+ if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
continue;
else if (i >= rdev->pm.current_power_state_index) {
rdev->pm.requested_power_state_index =
@@ -136,6 +136,13 @@
rdev->pm.current_power_state_index - 1;
}
rdev->pm.requested_clock_mode_index = 0;
+ /* don't use the power state if crtcs are active and no display flag is set */
+ if ((rdev->pm.active_crtc_count > 0) &&
+ (rdev->pm.power_state[rdev->pm.requested_power_state_index].
+ clock_info[rdev->pm.requested_clock_mode_index].flags &
+ RADEON_PM_MODE_NO_DISPLAY)) {
+ rdev->pm.requested_power_state_index++;
+ }
break;
case PM_ACTION_UPCLOCK:
if (rdev->pm.current_power_state_index == (rdev->pm.num_power_states - 1)) {
@@ -144,7 +151,7 @@
} else {
if (rdev->pm.active_crtc_count > 1) {
for (i = (rdev->pm.num_power_states - 1); i >= 0; i--) {
- if (rdev->pm.power_state[i].flags & RADEON_PM_SINGLE_DISPLAY_ONLY)
+ if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
continue;
else if (i <= rdev->pm.current_power_state_index) {
rdev->pm.requested_power_state_index =
@@ -179,7 +186,7 @@
rdev->pm.requested_power_state_index = -1;
/* start at 1 as we don't want the default mode */
for (i = 1; i < rdev->pm.num_power_states; i++) {
- if (rdev->pm.power_state[i].flags & RADEON_PM_SINGLE_DISPLAY_ONLY)
+ if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
continue;
else if ((rdev->pm.power_state[i].type == POWER_STATE_TYPE_PERFORMANCE) ||
(rdev->pm.power_state[i].type == POWER_STATE_TYPE_BATTERY)) {
@@ -210,6 +217,13 @@
rdev->pm.requested_clock_mode_index = 0;
rdev->pm.can_downclock = false;
}
+ /* don't use the power state if crtcs are active and no display flag is set */
+ if ((rdev->pm.active_crtc_count > 0) &&
+ (rdev->pm.power_state[rdev->pm.requested_power_state_index].
+ clock_info[rdev->pm.requested_clock_mode_index].flags &
+ RADEON_PM_MODE_NO_DISPLAY)) {
+ rdev->pm.requested_clock_mode_index++;
+ }
break;
case PM_ACTION_UPCLOCK:
if (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index) {