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authorAlex Deucher <alexdeucher@gmail.com>2010-06-25 16:21:27 -0400
committerDave Airlie <airlied@redhat.com>2010-07-01 11:59:46 +1000
commit773c3fa3a04bf6c9aa7147813beaab66f38e658f (patch)
treea7966c885cfecf8e9d5b2b1fa96fdd6a8a54f2cc /drivers/gpu/drm/radeon/r600.c
parent3f53eb6f84545a7fc55a36657755371f42c63fca (diff)
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/r600.c')
-rw-r--r--drivers/gpu/drm/radeon/r600.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 90f28175a7bc..3d6645ce2151 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -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 */