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[media] em28xx-dvb: implement em28xx_ops: suspend/resume hooks

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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: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Shuah Khan 2014-02-21 21:50:15 -03:00 • committed by Mauro Carvalho Chehab
commit ca2b46dacb
1 changed files with 57 additions and 0 deletions
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57
drivers/media/usb/em28xx/em28xx-dvb.c
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@ -1515,11 +1515,68 @@ static int em28xx_dvb_fini(struct em28xx *dev)
return 0;
}
static int em28xx_dvb_suspend(struct em28xx *dev)
{
int ret = 0;
if (dev->is_audio_only)
return 0;
if (!dev->board.has_dvb)
return 0;
em28xx_info("Suspending DVB extension");
if (dev->dvb) {
struct em28xx_dvb *dvb = dev->dvb;
if (dvb->fe[0]) {
ret = dvb_frontend_suspend(dvb->fe[0]);
em28xx_info("fe0 suspend %d", ret);
}
if (dvb->fe[1]) {
dvb_frontend_suspend(dvb->fe[1]);
em28xx_info("fe1 suspend %d", ret);
}
}
return 0;
}
static int em28xx_dvb_resume(struct em28xx *dev)
{
int ret = 0;
if (dev->is_audio_only)
return 0;
if (!dev->board.has_dvb)
return 0;
em28xx_info("Resuming DVB extension");
if (dev->dvb) {
struct em28xx_dvb *dvb = dev->dvb;
if (dvb->fe[0]) {
ret = dvb_frontend_resume(dvb->fe[0]);
em28xx_info("fe0 resume %d", ret);
}
if (dvb->fe[1]) {
ret = dvb_frontend_resume(dvb->fe[1]);
em28xx_info("fe1 resume %d", ret);
}
}
return 0;
}
static struct em28xx_ops dvb_ops = {
.id = EM28XX_DVB,
.name = "Em28xx dvb Extension",
.init = em28xx_dvb_init,
.fini = em28xx_dvb_fini,
.suspend = em28xx_dvb_suspend,
.resume = em28xx_dvb_resume,
};
static int __init em28xx_dvb_register(void)