diff options
| -rw-r--r-- | drivers/net/usb/r8152.c | 111 |
1 files changed, 66 insertions, 45 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 3a29072dc622..8bc4573e0cd4 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -4289,6 +4289,61 @@ static bool delay_autosuspend(struct r8152 *tp) return false; } +static int rtl8152_runtime_resume(struct r8152 *tp) +{ + struct net_device *netdev = tp->netdev; + + if (netif_running(netdev) && netdev->flags & IFF_UP) { + struct napi_struct *napi = &tp->napi; + + tp->rtl_ops.autosuspend_en(tp, false); + napi_disable(napi); + set_bit(WORK_ENABLE, &tp->flags); + + if (netif_carrier_ok(netdev)) { + if (rtl8152_get_speed(tp) & LINK_STATUS) { + rtl_start_rx(tp); + } else { + netif_carrier_off(netdev); + tp->rtl_ops.disable(tp); + netif_info(tp, link, netdev, "linking down\n"); + } + } + + napi_enable(napi); + clear_bit(SELECTIVE_SUSPEND, &tp->flags); + smp_mb__after_atomic(); + + if (!list_empty(&tp->rx_done)) + napi_schedule(&tp->napi); + + usb_submit_urb(tp->intr_urb, GFP_NOIO); + } else { + if (netdev->flags & IFF_UP) + tp->rtl_ops.autosuspend_en(tp, false); + + clear_bit(SELECTIVE_SUSPEND, &tp->flags); + } + + return 0; +} + +static int rtl8152_system_resume(struct r8152 *tp) +{ + struct net_device *netdev = tp->netdev; + + netif_device_attach(netdev); + + if (netif_running(netdev) && netdev->flags & IFF_UP) { + tp->rtl_ops.up(tp); + netif_carrier_off(netdev); + set_bit(WORK_ENABLE, &tp->flags); + usb_submit_urb(tp->intr_urb, GFP_NOIO); + } + + return 0; +} + static int rtl8152_runtime_suspend(struct r8152 *tp) { struct net_device *netdev = tp->netdev; @@ -4300,13 +4355,6 @@ static int rtl8152_runtime_suspend(struct r8152 *tp) if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) { u32 rcr = 0; - if (delay_autosuspend(tp)) { - clear_bit(SELECTIVE_SUSPEND, &tp->flags); - smp_mb__after_atomic(); - ret = -EBUSY; - goto out1; - } - if (netif_carrier_ok(netdev)) { u32 ocp_data; @@ -4340,6 +4388,11 @@ static int rtl8152_runtime_suspend(struct r8152 *tp) ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr); napi_enable(napi); } + + if (delay_autosuspend(tp)) { + rtl8152_runtime_resume(tp); + ret = -EBUSY; + } } out1: @@ -4387,50 +4440,18 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message) static int rtl8152_resume(struct usb_interface *intf) { struct r8152 *tp = usb_get_intfdata(intf); - struct net_device *netdev = tp->netdev; + int ret; mutex_lock(&tp->control); - if (!test_bit(SELECTIVE_SUSPEND, &tp->flags)) - netif_device_attach(netdev); - - if (netif_running(netdev) && netdev->flags & IFF_UP) { - if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) { - struct napi_struct *napi = &tp->napi; - - tp->rtl_ops.autosuspend_en(tp, false); - napi_disable(napi); - set_bit(WORK_ENABLE, &tp->flags); - if (netif_carrier_ok(netdev)) { - if (rtl8152_get_speed(tp) & LINK_STATUS) { - rtl_start_rx(tp); - } else { - netif_carrier_off(netdev); - tp->rtl_ops.disable(tp); - netif_info(tp, link, netdev, - "linking down\n"); - } - } - napi_enable(napi); - clear_bit(SELECTIVE_SUSPEND, &tp->flags); - smp_mb__after_atomic(); - if (!list_empty(&tp->rx_done)) - napi_schedule(&tp->napi); - } else { - tp->rtl_ops.up(tp); - netif_carrier_off(netdev); - set_bit(WORK_ENABLE, &tp->flags); - } - usb_submit_urb(tp->intr_urb, GFP_KERNEL); - } else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) { - if (netdev->flags & IFF_UP) - tp->rtl_ops.autosuspend_en(tp, false); - clear_bit(SELECTIVE_SUSPEND, &tp->flags); - } + if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) + ret = rtl8152_runtime_resume(tp); + else + ret = rtl8152_system_resume(tp); mutex_unlock(&tp->control); - return 0; + return ret; } static int rtl8152_reset_resume(struct usb_interface *intf) |