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@xxxxxxxxxxx>
---
drivers/media/usb/em28xx/em28xx-input.c | 35 +++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c
index 18f65d8..1227309 100644
--- a/drivers/media/usb/em28xx/em28xx-input.c
+++ b/drivers/media/usb/em28xx/em28xx-input.c
@@ -827,11 +827,46 @@ 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");
+ 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() */
+ schedule_delayed_work_sync(&ir->work);
+ 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)
--
1.8.3.2
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