openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

r8152: fix the wake event 

When the autosuspend is enabled and occurs before system suspend, we should
wake the device before running system syspend. Then, we could change the wake
event for system suspend. Otherwise, the device would resume the system when
receiving any packet.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
hayeswang 2016-01-07 17:12:17 +08:00 committed by David S. Miller
parent b4c19f7125
commit 5ee3c60c8d
1 changed files with 39 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
drivers/net/usb/r8152.c
View File

@ -25,12 +25,13 @@
#include <uapi/linux/mdio.h>
#include <linux/mdio.h>
#include <linux/usb/cdc.h>
#include <linux/suspend.h>
/* Information for net-next */
#define NETNEXT_VERSION "08"
/* Information for net */
#define NET_VERSION "2"
#define NET_VERSION "3"
#define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION
#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
@ -604,6 +605,9 @@ struct r8152 {
struct delayed_work schedule;
struct mii_if_info mii;
struct mutex control; /* use for hw setting */
#ifdef CONFIG_PM_SLEEP
struct notifier_block pm_notifier;
#endif
struct rtl_ops {
void (*init)(struct r8152 *);
@ -3048,6 +3052,33 @@ static void rtl_work_func_t(struct work_struct *work)
usb_autopm_put_interface(tp->intf);
}
#ifdef CONFIG_PM_SLEEP
static int rtl_notifier(struct notifier_block *nb, unsigned long action,
void *data)
{
struct r8152 *tp = container_of(nb, struct r8152, pm_notifier);
switch (action) {
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
usb_autopm_get_interface(tp->intf);
break;
case PM_POST_HIBERNATION:
case PM_POST_SUSPEND:
usb_autopm_put_interface(tp->intf);
break;
case PM_POST_RESTORE:
case PM_RESTORE_PREPARE:
default:
break;
}
return NOTIFY_DONE;
}
#endif
static int rtl8152_open(struct net_device *netdev)
{
struct r8152 *tp = netdev_priv(netdev);
@ -3090,6 +3121,10 @@ static int rtl8152_open(struct net_device *netdev)
mutex_unlock(&tp->control);
usb_autopm_put_interface(tp->intf);
#ifdef CONFIG_PM_SLEEP
tp->pm_notifier.notifier_call = rtl_notifier;
register_pm_notifier(&tp->pm_notifier);
#endif
out:
return res;
@ -3100,6 +3135,9 @@ static int rtl8152_close(struct net_device *netdev)
struct r8152 *tp = netdev_priv(netdev);
int res = 0;
#ifdef CONFIG_PM_SLEEP
unregister_pm_notifier(&tp->pm_notifier);
#endif
napi_disable(&tp->napi);
clear_bit(WORK_ENABLE, &tp->flags);
usb_kill_urb(tp->intr_urb);