[Bug 92791] New: [BXT-P] Several errors when suspending to freeze

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92791

            Bug ID: 92791
           Summary: [BXT-P] Several errors when suspending to freeze
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: christophe.prigent at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 119370
  --> https://bugs.freedesktop.org/attachment.cgi?id=119370&action=edit
Kernel configuration

BXT-P
Hardware 
Platform: Broxton P A0 Platform 
CPU Name : Intel(R) @ 1.2 GHz (family: 6, model: 92, stepping: 8) – 4 cores
SoC : BROXTON-P A0
CRB : Apollo Lake RVP Fab1
Software 
Linux distribution: Ubuntu 15.04 64 bits 
kernel 4.3.0-rc5 (26f82bd8) from https://github.com/ideak/linux.git BXT branch
commit 26f82bd872901733b739480e8899a92966ae9292
Author: Imre Deak <imre.deak at intel.com>
Date:   Tue Oct 20 16:44:03 2015 +0300
drm/i915/bxt: update bxt_defconfig
Enable Kconfig options needed for UART/eMMC.
Signed-off-by: Imre Deak <imre.deak at intel.com>
BIOS: APLKRVPA.X64.0104.R43.1510080446 
BIOS (IFWI Version): APLK_IFWI_X64_R_2015_41_5_02
CSE : 3.0.0.1044
KSC : 1.02

Steps:
------
1. Boot DUT in text mode
2. Execute commands:
sudo -s
echo freeze > /sys/power/state
3. Press any key to resume
4. Check /var/log/kern.log

Actual results:
---------------
3. Suspend to freeze and resume work
4. Log contains some errors

Expected result:
----------------
4. No errors

More details with the test modes of freeze:
-------------------------------------------
echo devices > /sys/power/pm_test
echo platform > /sys/power/disk
echo freeze > /sys/power/state

atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
drm:i915_gem_init_hw [i915]] *ERROR* Failed to initialize GuC, error -5
(ignored)
atkbd serio0: Failed to enable keyboard on isa0060/serio0
snd_hda_intel 0000:00:0e.0: azx_get_response timeout, switching to single_cmd
mode: last cmd=0x20170500
snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5


echo platform > /sys/power/pm_test
echo platform > /sys/power/disk
echo freeze > /sys/power/state

[drm:bxt_ddi_vswing_sequence [i915]] *ERROR* Disabled scaling while
ouniqetrangenmethod was set
[drm:bxt_ddi_vswing_sequence [i915]] *ERROR* Disabled scaling while
ouniqetrangenmethod was set
[drm:bxt_ddi_vswing_sequence [i915]] *ERROR* Disabled scaling while
ouniqetrangenmethod was set
atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
drm:i915_gem_init_hw [i915]] *ERROR* Failed to initialize GuC, error -5
(ignored)
[drm:bxt_ddi_vswing_sequence [i915]] *ERROR* Disabled scaling while
ouniqetrangenmethod was set
[drm:bxt_ddi_vswing_sequence [i915]] *ERROR* Disabled scaling while
ouniqetrangenmethod was set
atkbd serio0: Failed to enable keyboard on isa0060/serio0

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