Commits
Keith Packard committed 1f84e550a87
drm/i915 more registers for S3 (DSPCLK_GATE_D, CACHE_MODE_0, MI_ARB_STATE) Failing to preserve the MI_ARB_STATE register was causing FIFO underruns on the VGA output on my HP 2510p after resume. Signed-off-by: Dave Airlie <airlied@redhat.com>