diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-08-15 01:21:55 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-09-03 11:05:06 +0200 |
| commit | 81e7f2002b7db269799ebdac0d905574c0a85d1d (patch) | |
| tree | 05a6aaf331dc887fbdb1dfb3f601619bdcaaa572 /drivers/pwm/pwm-pxa.c | |
| parent | 1038392b4dd02a46006d38f33aab71486d477ced (diff) | |
drm/i915: Idle unused rings on gen2/3 during init/resume
gen2/3 platforms have a boatload of rings we're not using. On my 830
the BIOS/hw can leave some of those "active" after resume which will
prevent c3 entry. The ring is apparently considered active whenever
head != tail even if the ring is disabled.
Disable and clear all such unused ringbuffers on init/resume.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/pwm/pwm-pxa.c')
0 files changed, 0 insertions, 0 deletions