diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2015-06-03 15:45:11 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2015-06-12 13:14:33 +0300 |
| commit | 8cfb340774744438dea08a32072bea4a162dd132 (patch) | |
| tree | ebd322976b2c8c9cdbda5b0b49c5575e41c15f3f /net/switchdev/switchdev.c | |
| parent | 44913155f036ae966f09a7bc0d299c31876b4383 (diff) | |
drm/i915: Don't enable IPS when pixel rate exceeds 95%
Bspec says we shouldn't enable IPS on BDW when the pipe pixel rate
exceeds 95% of the core display clock. Apparently this can cause
underruns.
There's no similar restriction listed for HSW, so leave that one alone
for now.
v2: Add pipe_config_supports_ips() (Chris)
v3: Compare against the max cdclk insted of the current cdclk
v4: Rebased to the latest
v5: Rebased to the latest
v6: Fix for patch style problems
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83497
Tested-by: Timo Aaltonen <tjaalton@ubuntu.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions