Merge branch 'drm-next-ast-fixes' of ssh://people.freedesktop.org/~/linux into drm-next
Pull in first set of changes from Ben for ast on ppc.
I've done a quick boot test on x86 and it still seems to boot.
* 'drm-next-ast-fixes' of ssh://people.freedesktop.org/~/linux:
drm/ast: Cleanup analog init code path
drm/ast: Don't assume DVO enabled means SIL164 on uninitialized chips
drm/ast: Properly initialize P2A base before using it in ast_init_3rdtx()
drm/ast: POST chip at probe time if VGA not enabled
drm/ast: Try to use MMIO registers when PIO isn't supported