[Bug 90410] New: [BDW-H]System boot up causes [drm:check_crtc_state [i915]] *ERROR* mismatch in ddi_pll_sel (expected 0x00000000, found 0x80000000)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90410

            Bug ID: 90410
           Summary: [BDW-H]System boot up causes [drm:check_crtc_state
                    [i915]] *ERROR* mismatch in ddi_pll_sel (expected
                    0x00000000, found 0x80000000)
           Product: DRI
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: yex.tian at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 115708
  --> https://bugs.freedesktop.org/attachment.cgi?id=115708&action=edit
dmesg info

System Environment:       
-----------------------------------------------------
Regression:  not sure
Non-working platforms: BDW-H

==Kernel==
--------------------------------------------------
commit 7dcedb8e7bbf49f1342df21851d9b36786ff67ce
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Mon May 11 18:51:58 2015 +0200

drm-intel-nightly: 2015y-05m-11d-16h-51m-26s UTC integration manifest==Bug
detailed 
==description==
System boot up causes [drm:check_crtc_state [i915]] *ERROR* mismatch in
ddi_pll_sel (expected 0x00000000, found 0x80000000) on BDW-H with the latest
nightly kernel, it also exists on drm-intel-testing-2015-05-08, it does not
exists on latest fixes branch.

==Output==

[    8.663193] [drm:check_crtc_state [i915]] *ERROR* mismatch in ddi_pll_sel
(expected 0x00000000, found 0x80000000)
[    8.663194] ------------[ cut here ]------------
[    8.663202] WARNING: CPU: 0 PID: 946 at
drivers/gpu/drm/i915/intel_display.c:12074 check_crtc_state+0xb67/0xbd1
[i915]()
[    8.663203] pipe state doesn't match!
[    8.663223] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev
snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi pcspkr i2c_i801
joydev lpc_ich snd_hda_intel mfd_core snd_hda_codec snd_hda_core snd_hwdep
snd_pcm snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq i915
button video drm_kms_helper drm
[    8.663224] CPU: 0 PID: 946 Comm: kworker/0:1 Tainted: G        W      
4.1.0-rc2_drm-intel-testing-2015-05-08+ #2
[    8.663225] Hardware name: Intel Corporation Broadwell Client
platform/Basking Ridge, BIOS BDW-E1R1.86C.0119.R01.1503252201 03/25/2015
[    8.663227] Workqueue: events console_callback
[    8.663228]  0000000000000000 0000000000000009 ffffffff817a66cc
ffff88044bfc3778
[    8.663229]  ffffffff8103ebde ffff88044bfc3770 ffffffffa00ca3b0
ffff880446e00000
[    8.663230]  ffff880446c9f000 ffff8804472a4800 ffff88044bfc3800
ffff880445e48400
[    8.663231] Call Trace:
[    8.663232]  [<ffffffff817a66cc>] ? dump_stack+0x40/0x50
[    8.663233]  [<ffffffff8103ebde>] ? warn_slowpath_common+0x98/0xb0
[    8.663241]  [<ffffffffa00ca3b0>] ? check_crtc_state+0xb67/0xbd1 [i915]
[    8.663242]  [<ffffffff8103ec3b>] ? warn_slowpath_fmt+0x45/0x4a
[    8.663249]  [<ffffffffa00ca3b0>] ? check_crtc_state+0xb67/0xbd1 [i915]
[    8.663260]  [<ffffffffa00d959d>] ? intel_modeset_check_state+0x610/0x9e9
[i915]
[    8.663268]  [<ffffffffa00d9db8>] ? intel_crtc_set_config+0x3f8/0x531 [i915]
[    8.663272]  [<ffffffffa0018584>] ? drm_modeset_lock_all_crtcs+0x69/0x81
[drm]
[    8.663278]  [<ffffffffa000c2be>] ? drm_mode_set_config_internal+0x4e/0xd2
[drm]
[    8.663280]  [<ffffffffa0059613>] ? drm_fb_helper_pan_display+0x81/0xb6
[drm_kms_helper]
[    8.663283]  [<ffffffff81385fcd>] ? fb_pan_display+0xcb/0x10b
[    8.663284]  [<ffffffff813819d7>] ? bit_update_start+0x16/0x32
[    8.663286]  [<ffffffff8137fc87>] ? fbcon_switch+0x421/0x438
[    8.663287]  [<ffffffff813d4f18>] ? redraw_screen+0x106/0x1db
[    8.663289]  [<ffffffff813ce117>] ? complete_change_console+0x32/0xb6
[    8.663290]  [<ffffffff813d69a3>] ? console_callback+0x4b/0xed
[    8.663291]  [<ffffffff8104f985>] ? process_one_work+0x1b2/0x31d
[    8.663292]  [<ffffffff8105026f>] ? worker_thread+0x265/0x351
[    8.663294]  [<ffffffff8105000a>] ? cancel_delayed_work_sync+0xa/0xa
[    8.663295]  [<ffffffff81053ee1>] ? kthread+0xce/0xd6
[    8.663296]  [<ffffffff81053e13>] ? kthread_create_on_node+0x162/0x162
[    8.663298]  [<ffffffff817ac5d2>] ? ret_from_fork+0x42/0x70
[    8.663300]  [<ffffffff81053e13>] ? kthread_create_on_node+0x162/0x162
[    8.663301] ---[ end trace 3824646499370b63 ]---


Reproduce steps:
----------------------------

1, start machine

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