diff options
| author | Wang Dongsheng <dongsheng.wang@freescale.com> | 2014-11-06 06:47:31 (GMT) |
|---|---|---|
| committer | Matthew Weigel <Matthew.Weigel@freescale.com> | 2014-12-11 18:40:29 (GMT) |
| commit | 563510c6cba5be6c96b3862803fd3bc60ef2837a (patch) | |
| tree | 48d55125918f691e0925d6c2111e3758b4ee2b9c /drivers/rtc | |
| parent | 07b19f1eb07d5ef06a1f07c5e8c6d848f7be8557 (diff) | |
| download | linux-fsl-qoriq-563510c6cba5be6c96b3862803fd3bc60ef2837a.tar.xz | |
rtc/ds3232: fix ds3232 get a WARNING trace in resume function
If ds3232 work on some platform that is not implementation
irq_set_wake, ds3232 will get a WARNING trace in resume.
So fix ds3232->suspended state to false when irq_set_irq_wake
return error.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 729 at kernel/irq/manage.c:604
irq_set_irq_wake+0x4b/0x8c()
Unbalanced IRQ 201 wake disable
Modules linked in:
CPU: 0 PID: 729 Comm: sh Not tainted 3.12.19-rt30+ #25
[<800107d9>] (unwind_backtrace+0x1/0x88) from [<8000e4ef>]
(show_stack+0xb/0xc)
[<8000e4ef>] (show_stack+0xb/0xc) from [<802b5fa9>]
(dump_stack+0x4d/0x60)
[<802b5fa9>] (dump_stack+0x4d/0x60) from [<800186dd>]
(warn_slowpath_common+0x45/0x64)
[<800186dd>] (warn_slowpath_common+0x45/0x64) from [<80018717>]
(warn_slowpath_fmt+0x1b/0x24)
[<80018717>] (warn_slowpath_fmt+0x1b/0x24) from [<8003a8d3>]
(irq_set_irq_wake+0x4b/0x8c)
[<8003a8d3>] (irq_set_irq_wake+0x4b/0x8c) from [<80204fcb>]
(ds3232_resume+0x2d/0x36)
[<80204fcb>] (ds3232_resume+0x2d/0x36) from [<801954c7>]
(dpm_run_callback.isra.13+0xb/0x28)
[<801954c7>] (dpm_run_callback.isra.13+0xb/0x28) from [<80195b1b>]
(device_resume+0x7b/0xa2)
[<80195b1b>] (device_resume+0x7b/0xa2) from [<80195f0f>]
(dpm_resume+0xbb/0x19c)
[<80195f0f>] (dpm_resume+0xbb/0x19c) from [<801960d9>]
(dpm_resume_end+0x9/0x12)
[<801960d9>] (dpm_resume_end+0x9/0x12) from [<80037e1d>]
(suspend_devices_and_enter+0x17d/0x1d0)
[<80037e1d>] (suspend_devices_and_enter+0x17d/0x1d0) from [<80037ee1>]
(pm_suspend+0x71/0x128)
[<80037ee1>] (pm_suspend+0x71/0x128) from [<80037449>]
(state_store+0x6d/0x80)
[<80037449>] (state_store+0x6d/0x80) from [<800af4d5>]
(sysfs_write_file+0x9f/0xde)
[<800af4d5>] (sysfs_write_file+0x9f/0xde) from [<8007a437>]
(vfs_write+0x7b/0x104)
[<8007a437>] (vfs_write+0x7b/0x104) from [<8007a7f7>]
(SyS_write+0x27/0x48)
[<8007a7f7>] (SyS_write+0x27/0x48) from [<8000c121>]
(ret_fast_syscall+0x1/0x44)
---[ end trace 640959d2e8de6ccc ]---
Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Change-Id: I45102d4ee48299df4b24ffd85cdd316a9c8598f4
Reviewed-on: http://git.am.freescale.net:8181/23266
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Chenhui Zhao <chenhui.zhao@freescale.com>
Reviewed-by: Matthew Weigel <Matthew.Weigel@freescale.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-ds3232.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-ds3232.c b/drivers/rtc/rtc-ds3232.c index adaf06c..bb3915b 100644 --- a/drivers/rtc/rtc-ds3232.c +++ b/drivers/rtc/rtc-ds3232.c @@ -461,7 +461,10 @@ static int ds3232_suspend(struct device *dev) if (device_can_wakeup(dev)) { ds3232->suspended = true; - irq_set_irq_wake(client->irq, 1); + if (irq_set_irq_wake(client->irq, 1)) { + dev_info(dev, "Can not set wakeup sources\n"); + ds3232->suspended = false; + } } return 0; |