Commit 6d746f91 authored by Shuah Khan's avatar Shuah Khan Committed by Mauro Carvalho Chehab
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[media] em28xx-audio: 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.

Signed-off-by: default avatarShuah Khan <shuah.kh@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 9c669b73

drivers/media/usb/em28xx/em28xx-audio.c

+30 −0
Original line number Diff line number Diff line
@@ -989,11 +989,41 @@ static int em28xx_audio_fini(struct em28xx *dev) 
	return 0;

}



static int em28xx_audio_suspend(struct em28xx *dev)

{

	if (dev == NULL)

		return 0;



	if (!dev->has_alsa_audio)

		return 0;



	em28xx_info("Suspending audio extension");

	em28xx_deinit_isoc_audio(dev);

	atomic_set(&dev->stream_started, 0);

	return 0;

}



static int em28xx_audio_resume(struct em28xx *dev)

{

	if (dev == NULL)

		return 0;



	if (!dev->has_alsa_audio)

		return 0;



	em28xx_info("Resuming audio extension");

	/* Nothing to do other than schedule_work() ?? */

	schedule_work(&dev->wq_trigger);

	return 0;

}



static struct em28xx_ops audio_ops = {

	.id   = EM28XX_AUDIO,

	.name = "Em28xx Audio Extension",

	.init = em28xx_audio_init,

	.fini = em28xx_audio_fini,

	.suspend = em28xx_audio_suspend,

	.resume = em28xx_audio_resume,

};



static int __init em28xx_alsa_register(void)