diff options
| author | Shuah Khan <shuah.kh@samsung.com> | 2014-02-21 21:50:16 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-03-03 06:46:25 -0300 |
| commit | 5025076aadfeaf774f341b852b997f2bc718da6a (patch) | |
| tree | 576014647316baca40e8030867460ec2e2e2e705 /drivers/media/usb | |
| parent | ca2b46dacbf5caaa070c0195c794a35b49b189d1 (diff) | |
[media] em28xx-input: implement em28xx_ops: suspend/resume hooks
Implement em28xx_ops: suspend/resume hooks. em28xx usb driver will
invoke em28xx_ops: suspend and resume hooks for all its extensions
from its suspend() and resume() interfaces.
[m.chehab@samsung.com: Fix a breakage caused by calling a non-existing
function call: schedule_delayed_work_sync(), and test if IR was defined
at suspend/resume]
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/usb')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-input.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c index 048e5b680499..47a2c1dcccbf 100644 --- a/drivers/media/usb/em28xx/em28xx-input.c +++ b/drivers/media/usb/em28xx/em28xx-input.c @@ -827,11 +827,48 @@ static int em28xx_ir_fini(struct em28xx *dev) return 0; } +static int em28xx_ir_suspend(struct em28xx *dev) +{ + struct em28xx_IR *ir = dev->ir; + + if (dev->is_audio_only) + return 0; + + em28xx_info("Suspending input extension"); + if (ir) + cancel_delayed_work_sync(&ir->work); + cancel_delayed_work_sync(&dev->buttons_query_work); + /* is canceling delayed work sufficient or does the rc event + kthread needs stopping? kthread is stopped in + ir_raw_event_unregister() */ + return 0; +} + +static int em28xx_ir_resume(struct em28xx *dev) +{ + struct em28xx_IR *ir = dev->ir; + + if (dev->is_audio_only) + return 0; + + em28xx_info("Resuming input extension"); + /* if suspend calls ir_raw_event_unregister(), the should call + ir_raw_event_register() */ + if (ir) + schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling)); + if (dev->num_button_polling_addresses) + schedule_delayed_work(&dev->buttons_query_work, + msecs_to_jiffies(dev->button_polling_interval)); + return 0; +} + static struct em28xx_ops rc_ops = { .id = EM28XX_RC, .name = "Em28xx Input Extension", .init = em28xx_ir_init, .fini = em28xx_ir_fini, + .suspend = em28xx_ir_suspend, + .resume = em28xx_ir_resume, }; static int __init em28xx_rc_register(void) |