This patch adds the implementation of the PM functions resume and suspend.
Signed-off-by: Christian Gromm <christian.gr...@microchip.com>
---
drivers/staging/most/usb/usb.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/staging/most/usb/usb.c b/drivers/staging/most/usb/usb.c
index b31a49c..daa5e4b 100644
--- a/drivers/staging/most/usb/usb.c
+++ b/drivers/staging/most/usb/usb.c
@@ -1221,11 +1221,39 @@ static void hdm_disconnect(struct usb_interface
*interface)
put_device(&mdev->dev);
}
+static int hdm_suspend(struct usb_interface *interface, pm_message_t message)
+{
+ struct most_dev *mdev = usb_get_intfdata(interface);
+ int i;
+
+ mutex_lock(&mdev->io_mutex);
+ for (i = 0; i < mdev->iface.num_channels; i++) {
+ most_stop_enqueue(&mdev->iface, i);
+ usb_kill_anchored_urbs(&mdev->busy_urbs[i]);
+ }
+ mutex_unlock(&mdev->io_mutex);
+ return 0;
+}
+
+static int hdm_resume(struct usb_interface *interface)
+{
+ struct most_dev *mdev = usb_get_intfdata(interface);
+ int i;
+
+ mutex_lock(&mdev->io_mutex);
+ for (i = 0; i < mdev->iface.num_channels; i++)
+ most_resume_enqueue(&mdev->iface, i);
+ mutex_unlock(&mdev->io_mutex);
+ return 0;
+}
+
static struct usb_driver hdm_usb = {
.name = "hdm_usb",
.id_table = usbid,
.probe = hdm_probe,
.disconnect = hdm_disconnect,
+ .resume = hdm_resume,
+ .suspend = hdm_suspend,
};
module_usb_driver(hdm_usb);
--
2.7.4
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