This issue is reported before. And the following patch has been patched.
http://e2e.ti.com/support/embedded/android/f/509/t/225393.aspx
but my device still happens.
When device is entering suspend mode. A wifi interrupt abort the suspend.
and the device start to resume. But can not enable the 48M fck clock.
<6>[ 2258.684234] PM: suspend of devices complete after 52.062 msecs
<6>[ 2258.690917] PM: late suspend of devices complete after 0.549 msecs
<6>[ 2258.697479] Wakeup IRQ 271 pending, suspend aborted
<3>[ 2258.818756] cm: Module associated with clock usbhost_48m_fck didn't enable in 100000 tries
<1>[ 2258.827484] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa064010
<0>[ 2258.835571] Internal error: : 1028 [#1] PREEMPT
<0>[ 2258.840362] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
<4>[ 2258.848327] Modules linked in: tiwlan_drv omaplfb pvrsrvkm honeywell_ioctl ffxblk flashfx(P) ffxos
<4>[ 2258.857788] CPU: 0 Tainted: P (2.6.37 #1)
<4>[ 2258.863372] PC is at ehci_omap_enable+0x24/0x70
<4>[ 2258.868133] LR is at omap2_clk_enable+0xc8/0x134
<4>[ 2258.872985] pc : [<c0323d4c>] lr : [<c0065474>] psr: 60000013
<4>[ 2258.873077] sp : def71dc8 ip : def71d78 fp : def71ddc
<4>[ 2258.885070] r10: 00000005 r9 : 00000000 r8 : c06db8c8
<4>[ 2258.890563] r7 : def71e58 r6 : 00000010 r5 : dec42cc0 r4 : ded48540
<4>[ 2258.897430] r3 : fa064000 r2 : def70000 r1 : 00000003 r0 : 00000000
<4>[ 2258.904296] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
<4>[ 2258.911987] Control: 10c5387d Table: 925c4019 DAC: 00000017
<4>[ 2258.917999]