[Bug 67731] New: [Baytrail-M] system can't resume from S3/S4

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67731

          Priority: medium
            Bug ID: 67731
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [Baytrail-M] system can't resume from S3/S4
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: blocker
    Classification: Unclassified
                OS: Linux (All)
          Reporter: kobe.qin at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Test Environment, 

Platform: Baytrail-M 
00:00.0 Host bridge [0600]: Intel Corporation ValleyView SSA-CUnit [8086:0f00]
(rev 06)
00:02.0 VGA compatible controller [0300]: Intel Corporation ValleyView Gen7
[8086:0f31] (rev 06)

Driver version:
OSD:             Fedora Release 19.x86_64
Kernel_version:    
kernel-3.11.0rc2_drmintelfixes_61c254_20130731_+-6401.x86_64.rpm
Libdrm:        
(master)libdrm-2.4.46-2-gfea5408098c3c3057958e85ea9d7146f0b08749e
Mesa:           (9.2)9b8ad643629fad1724e01c8fbb3289e43d42e1c1
Xserver:                (server-1.13-branch)xorg-server-1.13.4
Xf86_video_intel:              
(master)2.21.13-35-g493763301e995d02cb838d14348da46dd26444af
Cairo:          (master)3cd6c5966aca1d202744fe44083800bc2a4a831d
Libva:          (master)d2dbc3f69c69e5933e7b3da429c0fb0cae5b98b0
Libva_intel_driver:            
(master)8bf807539c1790d6eee531373131672d38c82b31
OpenCL:         (master)
Kernel:         (drm-intel-fixes) 61c2542b3b8e70fc1b82880c3ef7e2f930875b97

BIOS version:
BBAYCRB_X64_R_SPI_0040_40_SEC_1040

Description:
After enter to S3 or S4, system can't resume again via pressing power button

Reproduce step:
1.boot up machine with command "reboot"(warm boot)
2.echo 0 > /sys/class/rtc/rtc0/wakealarm ; 
  echo +10 > /sys/class/rtc/rtc0/wakealarm; 
3.echo mem/disk > /sys/power/state

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