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ath9k_htc: Fix suspend/resume 

The HW has to be set to FULLSLEEP mode during suspend,
when no interface has been brought up. Not doing this would
break resume, as the chip won't be powered up at all.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2010-12-01 12:30:27 +05:30 committed by John W. Linville
parent b93996cf67
commit f933ebed78
4 changed files with 18 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/net/wireless/ath/ath9k/hif_usb.c
View File

@ -1024,6 +1024,13 @@ static int ath9k_hif_usb_suspend(struct usb_interface *interface,
struct hif_device_usb *hif_dev = struct hif_device_usb *hif_dev =
(struct hif_device_usb *) usb_get_intfdata(interface); (struct hif_device_usb *) usb_get_intfdata(interface);
/*
* The device has to be set to FULLSLEEP mode in case no
* interface is up.
*/
if (!(hif_dev->flags & HIF_USB_START))
ath9k_htc_suspend(hif_dev->htc_handle);
ath9k_hif_usb_dealloc_urbs(hif_dev); ath9k_hif_usb_dealloc_urbs(hif_dev);
return 0; return 0;

3
drivers/net/wireless/ath/ath9k/htc.h
View File

@ -455,6 +455,8 @@ u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv); void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv); void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
void ath9k_ps_work(struct work_struct *work); void ath9k_ps_work(struct work_struct *work);
bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
enum ath9k_power_mode mode);
void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv); void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
void ath9k_init_leds(struct ath9k_htc_priv *priv); void ath9k_init_leds(struct ath9k_htc_priv *priv);
@ -464,6 +466,7 @@ int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
u16 devid, char *product); u16 devid, char *product);
void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug); void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
#ifdef CONFIG_PM #ifdef CONFIG_PM
void ath9k_htc_suspend(struct htc_target *htc_handle);
int ath9k_htc_resume(struct htc_target *htc_handle); int ath9k_htc_resume(struct htc_target *htc_handle);
#endif #endif
#ifdef CONFIG_ATH9K_HTC_DEBUGFS #ifdef CONFIG_ATH9K_HTC_DEBUGFS

6
drivers/net/wireless/ath/ath9k/htc_drv_init.c
View File

@ -891,6 +891,12 @@ void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
} }
#ifdef CONFIG_PM #ifdef CONFIG_PM
void ath9k_htc_suspend(struct htc_target *htc_handle)
{
ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
}
int ath9k_htc_resume(struct htc_target *htc_handle) int ath9k_htc_resume(struct htc_target *htc_handle)
{ {
int ret; int ret;

4
drivers/net/wireless/ath/ath9k/htc_drv_main.c
View File

@ -63,8 +63,8 @@ static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
return mode; return mode;
} }
static bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
enum ath9k_power_mode mode) enum ath9k_power_mode mode)
{ {
bool ret; bool ret;