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yaml
---
r: 328131
b: refs/heads/master
c: 16c79a0
h: refs/heads/master
i:
  328129: 419a177
  328127: 63a960d
v: v3
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Steve Glendinning authored and David S. Miller committed Sep 28, 2012
1 parent 1f70fc1 commit b38b76c
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Showing 2 changed files with 55 additions and 4 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 8762cec8d9d06eddc9a80293a230d6e073568815
refs/heads/master: 16c79a04e262e51c790af4b074963dd592c617f2
57 changes: 54 additions & 3 deletions trunk/drivers/net/usb/smsc75xx.c
Original file line number Diff line number Diff line change
Expand Up @@ -1106,6 +1106,57 @@ static void smsc75xx_unbind(struct usbnet *dev, struct usb_interface *intf)
}
}

static int smsc75xx_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usbnet *dev = usb_get_intfdata(intf);
int ret;
u32 val;

if (WARN_ON_ONCE(!dev))
return -EINVAL;

ret = usbnet_suspend(intf, message);
check_warn_return(ret, "usbnet_suspend error");

netdev_info(dev->net, "entering SUSPEND2 mode");

ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
check_warn_return(ret, "Error reading PMT_CTL");

val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST);
val |= PMT_CTL_SUS_MODE_2;

ret = smsc75xx_write_reg(dev, PMT_CTL, val);
check_warn_return(ret, "Error writing PMT_CTL");

return 0;
}

static int smsc75xx_resume(struct usb_interface *intf)
{
struct usbnet *dev = usb_get_intfdata(intf);
int ret;
u32 val;

if (WARN_ON_ONCE(!dev))
return -EINVAL;

netdev_info(dev->net, "resuming from SUSPEND2");

ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
check_warn_return(ret, "Error reading PMT_CTL");

val |= PMT_CTL_PHY_PWRUP;

ret = smsc75xx_write_reg(dev, PMT_CTL, val);
check_warn_return(ret, "Error writing PMT_CTL");

ret = smsc75xx_wait_ready(dev);
check_warn_return(ret, "device not ready in smsc75xx_resume");

return usbnet_resume(intf);
}

static void smsc75xx_rx_csum_offload(struct usbnet *dev, struct sk_buff *skb,
u32 rx_cmd_a, u32 rx_cmd_b)
{
Expand Down Expand Up @@ -1274,9 +1325,9 @@ static struct usb_driver smsc75xx_driver = {
.name = SMSC_CHIPNAME,
.id_table = products,
.probe = usbnet_probe,
.suspend = usbnet_suspend,
.resume = usbnet_resume,
.reset_resume = usbnet_resume,
.suspend = smsc75xx_suspend,
.resume = smsc75xx_resume,
.reset_resume = smsc75xx_resume,
.disconnect = usbnet_disconnect,
.disable_hub_initiated_lpm = 1,
};
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