Hi,
 That might require a bunch of testing, plus I'd rather not mix
in
 unrelated changes... If we really want to drive Cirrus with a different
 x.org driver, we should (perhaps, if at all) have a separate RHBZ about
 that.
 
 I will pick up your A-b for the "surgical" stdvga-related change though,
 if that's OK with you. 
Sure, it's correct no matter what happens with the other devices.
take care,
  Gerd