Commit 0df1f663 authored by Hans de Goede's avatar Hans de Goede Committed by Sarah Sharp
Browse files

uas: Add suspend/resume support


Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
parent e36e6493
......@@ -1091,6 +1091,45 @@ static int uas_post_reset(struct usb_interface *intf)
return 0;
}
static int uas_suspend(struct usb_interface *intf, pm_message_t message)
{
struct Scsi_Host *shost = usb_get_intfdata(intf);
struct uas_dev_info *devinfo = (void *)shost->hostdata[0];
/* Wait for any pending requests to complete */
flush_work(&devinfo->work);
if (usb_wait_anchor_empty_timeout(&devinfo->sense_urbs, 5000) == 0) {
shost_printk(KERN_ERR, shost, "%s: timed out\n", __func__);
return -ETIME;
}
return 0;
}
static int uas_resume(struct usb_interface *intf)
{
return 0;
}
static int uas_reset_resume(struct usb_interface *intf)
{
struct Scsi_Host *shost = usb_get_intfdata(intf);
struct uas_dev_info *devinfo = (void *)shost->hostdata[0];
unsigned long flags;
if (uas_configure_endpoints(devinfo) != 0) {
shost_printk(KERN_ERR, shost,
"%s: alloc streams error after reset", __func__);
return -EIO;
}
spin_lock_irqsave(shost->host_lock, flags);
scsi_report_bus_reset(shost, 0);
spin_unlock_irqrestore(shost->host_lock, flags);
return 0;
}
static void uas_disconnect(struct usb_interface *intf)
{
struct Scsi_Host *shost = usb_get_intfdata(intf);
......@@ -1114,6 +1153,9 @@ static struct usb_driver uas_driver = {
.disconnect = uas_disconnect,
.pre_reset = uas_pre_reset,
.post_reset = uas_post_reset,
.suspend = uas_suspend,
.resume = uas_resume,
.reset_resume = uas_reset_resume,
.id_table = uas_usb_ids,
};
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment