| commit | 2a2430f4542467502d39660bfd66b0004fd8d6a9 | [log] [tgz] |
|---|---|---|
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | Thu Jul 16 13:01:02 2009 -0700 |
| committer | Eric Anholt <eric@anholt.net> | Thu Jul 16 13:02:40 2009 -0700 |
| tree | 8ff5a492835af7460bc0dd713e7b84b6dacdcd86 | |
| parent | 390c4dd448b1a5f04ea497c20f5ff664f8eeed01 [diff] |
drm/i915: correct self-refresh calculation in "everything off" case If no planes are enabled, the self-refresh calculation may end up doing a divide by zero. This patch should prevent that by making sure at least one of the CRTCs had a valid hdisplay value. Reported-by: Eric Anholt <eric@anholt.net> Tested-by: Eric Anholt <eric@anholt.net> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>