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drm/radeon/kms/pm: add support for no display power states

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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>
This commit is contained in:
Alex Deucher
2010-05-03 01:13:14 -04:00
committed by Dave Airlie
parent ca2af92311
commit d7311171c4
8 changed files with 94 additions and 40 deletions
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2
drivers/gpu/drm/radeon/radeon_combios.c
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@@ -2437,7 +2437,7 @@ void radeon_combios_get_power_modes(struct radeon_device *rdev)
if (rev > 6)
rdev->pm.power_state[state_index].pcie_lanes =
RBIOS8(offset + 0x5 + 0x10);
rdev->pm.power_state[state_index].flags = RADEON_PM_SINGLE_DISPLAY_ONLY;
rdev->pm.power_state[state_index].flags = RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
state_index++;
} else {
/* XXX figure out some good default low power mode for mobility cards w/out power tables */