[Intel-gfx] [PATCH v2] drm/i915: vlv: fix save/restore of

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                 -1              364/364              363/364
ILK              +1-3              365/366              363/366
SNB                                  450/450              450/450
IVB                                  498/498              498/498
BYT                                  289/289              289/289
HSW                                  564/564              564/564
BDW                                  417/417              417/417
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
*PNV  igt_kms_sysfs_edid_timing      PASS(2, M25M7)      FAIL(1, M7)
 ILK  igt_kms_flip_bcs-flip-vs-modeset-interruptible      DMESG_WARN(1, M26)PASS(3, M26)      DMESG_WARN(1, M26)
 ILK  igt_kms_flip_busy-flip-interruptible      DMESG_WARN(1, M26)PASS(3, M26)      DMESG_WARN(1, M26)
*ILK  igt_kms_flip_rcs-flip-vs-dpms      PASS(3, M26)      DMESG_WARN(1, M26)
 ILK  igt_kms_flip_wf_vblank-ts-check      DMESG_WARN(2, M26)PASS(5, M26M37)      PASS(1, M26)
Note: You need to pay more attention to line start with '*'