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[media] au0828: Add suspend code for DVB 

The scheduled work should be cancelled during suspend.

At resume time, we need to set the frontend again. So,
add such logic to the driver.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2014-08-09 21:47:13 -03:00
parent fa500461db
commit b799de75e0
3 changed files with 34 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/usb/au0828/au0828-core.c
View File

@ -290,6 +290,7 @@ static int au0828_suspend(struct usb_interface *interface,
return 0;
au0828_rc_suspend(dev);
au0828_dvb_suspend(dev);
/* FIXME: should suspend also ATV/DTV */
@ -309,6 +310,7 @@ static int au0828_resume(struct usb_interface *interface)
au0828_gpio_setup(dev);
au0828_rc_resume(dev);
au0828_dvb_resume(dev);
/* FIXME: should resume also ATV/DTV */

31
drivers/media/usb/au0828/au0828-dvb.c Normal file → Executable file
View File

@ -23,7 +23,6 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/suspend.h>
#include <media/v4l2-common.h>
#include <media/tuner.h>
@ -618,3 +617,33 @@ int au0828_dvb_register(struct au0828_dev *dev)
return 0;
}
void au0828_dvb_suspend(struct au0828_dev *dev)
{
struct au0828_dvb *dvb = &dev->dvb;
if (dvb && dev->urb_streaming) {
cancel_work_sync(&dev->restart_streaming);
/* Stop transport */
mutex_lock(&dvb->lock);
stop_urb_transfer(dev);
au0828_stop_transport(dev, 1);
mutex_unlock(&dvb->lock);
}
}
void au0828_dvb_resume(struct au0828_dev *dev)
{
struct au0828_dvb *dvb = &dev->dvb;
if (dvb && dev->urb_streaming) {
au0828_set_frontend(dvb->frontend);
/* Start transport */
mutex_lock(&dvb->lock);
au0828_start_transport(dev);
start_urb_transfer(dev);
mutex_unlock(&dvb->lock);
}
}

2
drivers/media/usb/au0828/au0828.h
View File

@ -316,6 +316,8 @@ void au0828_analog_unregister(struct au0828_dev *dev);
/* au0828-dvb.c */
extern int au0828_dvb_register(struct au0828_dev *dev);
extern void au0828_dvb_unregister(struct au0828_dev *dev);
void au0828_dvb_suspend(struct au0828_dev *dev);
void au0828_dvb_resume(struct au0828_dev *dev);
/* au0828-vbi.c */
extern struct videobuf_queue_ops au0828_vbi_qops;