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[media] radio-shark2: Add support for suspend & resume 

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede 2012-08-11 12:37:13 -03:00 committed by Mauro Carvalho Chehab
parent d7aab0bf9d
commit d1f280d615
3 changed files with 41 additions and 1 deletions
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39
drivers/media/radio/radio-shark2.c
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@ -209,6 +209,7 @@ static int shark_register_leds(struct shark_device *shark, struct device *dev)
{
int i, retval;
atomic_set(&shark->brightness[BLUE_LED], 127);
INIT_WORK(&shark->led_work, shark_led_work);
for (i = 0; i < NO_LEDS; i++) {
shark->leds[i] = shark_led_templates[i];
@ -235,6 +236,16 @@ static void shark_unregister_leds(struct shark_device *shark)
cancel_work_sync(&shark->led_work);
}
static void shark_resume_leds(struct shark_device *shark)
{
int i;
for (i = 0; i < NO_LEDS; i++)
set_bit(i, &shark->brightness_new);
schedule_work(&shark->led_work);
}
#else
static int shark_register_leds(struct shark_device *shark, struct device *dev)
{
@ -243,6 +254,7 @@ static int shark_register_leds(struct shark_device *shark, struct device *dev)
return 0;
}
static inline void shark_unregister_leds(struct shark_device *shark) { }
static inline void shark_resume_leds(struct shark_device *shark) { }
#endif
static void usb_shark_disconnect(struct usb_interface *intf)
@ -327,6 +339,28 @@ err_alloc_buffer:
return retval;
}
#ifdef CONFIG_PM
int usb_shark_suspend(struct usb_interface *intf, pm_message_t message)
{
return 0;
}
int usb_shark_resume(struct usb_interface *intf)
{
struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
int ret;
mutex_lock(&shark->tea.mutex);
ret = radio_tea5777_set_freq(&shark->tea);
mutex_unlock(&shark->tea.mutex);
shark_resume_leds(shark);
return ret;
}
#endif
/* Specify the bcdDevice value, as the radioSHARK and radioSHARK2 share ids */
static struct usb_device_id usb_shark_device_table[] = {
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
@ -346,5 +380,10 @@ static struct usb_driver usb_shark_driver = {
.probe = usb_shark_probe,
.disconnect = usb_shark_disconnect,
.id_table = usb_shark_device_table,
#ifdef CONFIG_PM
.suspend = usb_shark_suspend,
.resume = usb_shark_resume,
.reset_resume = usb_shark_resume,
#endif
};
module_usb_driver(usb_shark_driver);

2
drivers/media/radio/radio-tea5777.c
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@ -184,7 +184,7 @@ static u32 tea5777_freq_to_v4l2_freq(struct radio_tea5777 *tea, u32 freq)
return 0; /* Never reached */
}
static int radio_tea5777_set_freq(struct radio_tea5777 *tea)
int radio_tea5777_set_freq(struct radio_tea5777 *tea)
{
u32 freq;
int res;

1
drivers/media/radio/radio-tea5777.h
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@ -85,5 +85,6 @@ struct radio_tea5777 {
int radio_tea5777_init(struct radio_tea5777 *tea, struct module *owner);
void radio_tea5777_exit(struct radio_tea5777 *tea);
int radio_tea5777_set_freq(struct radio_tea5777 *tea);
#endif /* __RADIO_TEA5777_H */