diff options
Diffstat (limited to 'drivers/net/usb/smsc95xx.c')
| -rw-r--r-- | drivers/net/usb/smsc95xx.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index f29860d6341a..ba0360fb857f 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1018,6 +1018,32 @@ static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf) } } +static int smsc95xx_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 = smsc95xx_read_reg(dev, PM_CTRL, &val); + check_warn_return(ret, "Error reading PM_CTRL"); + + val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_); + val |= PM_CTL_SUS_MODE_2; + + ret = smsc95xx_write_reg(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL"); + + return 0; +} + static void smsc95xx_rx_csum_offload(struct sk_buff *skb) { skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2); @@ -1280,7 +1306,7 @@ static struct usb_driver smsc95xx_driver = { .name = "smsc95xx", .id_table = products, .probe = usbnet_probe, - .suspend = usbnet_suspend, + .suspend = smsc95xx_suspend, .resume = usbnet_resume, .reset_resume = usbnet_resume, .disconnect = usbnet_disconnect, |