https://bugs.freedesktop.org/show_bug.cgi?id=98513

--- Comment #2 from Shawn Starr <shawn.starr@rogers.com> ---
Bisected results confirmed:

[spstarr@segfault linux]$ git bisect bad
86f8c599b09c916f9aad30563271440dbd79213a is the first bad commit
commit 86f8c599b09c916f9aad30563271440dbd79213a
Author: Rex Zhu <Rex.Zhu@amd.com>
Date:   Mon Oct 3 20:46:36 2016 +0800

    drm/amdgpu: when suspend, set boot state instand of disable dpm.

    fix pm-hibernate bug, when suspend/resume, dpm start failed.

    Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
    Acked-by: Christian König <christian.koenig@amd.com>
    Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

:040000 040000 5537c5937b203abdb5c48c5a0dc8dc5f6a3d00f2
7f048011c861d8c35b922fd94f089cd07d670f60 M      drivers
[spstarr@segfault linux]$ git bisect log
git bisect start
# good: [1001354ca34179f3db924eb66672442a173147dc] Linux 4.9-rc1
git bisect good 1001354ca34179f3db924eb66672442a173147dc
# bad: [2f5945e707b5dffbf12444ad8bea079626ad30ec] drm/amdgpu: add the interface
of waiting multiple fences (v4)
git bisect bad 2f5945e707b5dffbf12444ad8bea079626ad30ec
# good: [61d0a04d6f5b2122f88aacbc4b1716e571961660] Merge tag
'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into
drm-next
git bisect good 61d0a04d6f5b2122f88aacbc4b1716e571961660
# good: [e4ab73a13291fc844c9e24d5c347bd95818544d2] drm/i915: Respect
alternate_ddc_pin for all DDI ports
git bisect good e4ab73a13291fc844c9e24d5c347bd95818544d2
# bad: [415282b15e15c2d7fb18e29c5b554cc7f4ff5c52] drm/amdgpu: disable dpm
before turn off clock when vce idle.
git bisect bad 415282b15e15c2d7fb18e29c5b554cc7f4ff5c52
# good: [392f0c775c80de0eae4c07227cc220015df70abc] drm/amdgpu/gfx8: cache rb
config values
git bisect good 392f0c775c80de0eae4c07227cc220015df70abc
# good: [472259f02657ef99cba2a64832ccadad8e3baabe] drm/amd/amdgpu: re-factor
debugfs wave reader
git bisect good 472259f02657ef99cba2a64832ccadad8e3baabe
# good: [f1e68a7cf582b41d6da1dd15b9f0bfb9057c1164] drm/amdgpu/atom: remove a
bunch of unused functions
git bisect good f1e68a7cf582b41d6da1dd15b9f0bfb9057c1164
# good: [585ffd65441a4aea7e762d17f7a248d07cd1c9ac] drm/ttm: fix coding style in
ttm_bo_driver.h
git bisect good 585ffd65441a4aea7e762d17f7a248d07cd1c9ac
# good: [8ed8147abc7cf1f689245deb316aabfe2f657ade] drm/amdgpu: use failed label
to handle context init failure
git bisect good 8ed8147abc7cf1f689245deb316aabfe2f657ade
# bad: [3f767e3d076dd2a24a614917c8f0b05d8d82b90b] drm/amdgpu: just not load smc
firmware if smu is already running
git bisect bad 3f767e3d076dd2a24a614917c8f0b05d8d82b90b
# bad: [86f8c599b09c916f9aad30563271440dbd79213a] drm/amdgpu: when suspend, set
boot state instand of disable dpm.
git bisect bad 86f8c599b09c916f9aad30563271440dbd79213a
# first bad commit: [86f8c599b09c916f9aad30563271440dbd79213a] drm/amdgpu: when
suspend, set boot state instand of disable dpm.

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