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drm/radeon/kms/pm: fix power state indexing on igp chips in dynpm mode 

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28745

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Tested-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-06-25 16:21:27 -04:00 committed by Dave Airlie
parent 3f53eb6f84
commit 773c3fa3a0
1 changed files with 8 additions and 3 deletions
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11
drivers/gpu/drm/radeon/r600.c
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@ -130,9 +130,14 @@ void r600_pm_get_dynpm_state(struct radeon_device *rdev)
break;
}
}
} else
rdev->pm.requested_power_state_index =
rdev->pm.current_power_state_index - 1;
} else {
if (rdev->pm.current_power_state_index == 0)
rdev->pm.requested_power_state_index =
rdev->pm.num_power_states - 1;
else
rdev->pm.requested_power_state_index =
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 */