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

ath10k: don't wait for device init if it crashed 

When warm resetting it's possible for device to
crash during initialization. Instead of waiting 3
seconds just return failure as soon as
FW_IND_EVENT_PENDING is set.

This speeds up device bootup and recovery in some
cases.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior 2014-04-23 19:30:04 +03:00 committed by Kalle Valo
parent 6a4f6e1d29
commit 7710cd2e24
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/ath/ath10k/pci.c
View File

@ -2452,6 +2452,10 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
if (val == 0xffffffff)
continue;
/* the device has crashed so don't bother trying anymore */
if (val & FW_IND_EVENT_PENDING)
break;
if (val & FW_IND_INITIALIZED)
break;
@ -2470,6 +2474,12 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
goto out;
}
if (val & FW_IND_EVENT_PENDING) {
ath10k_warn("device has crashed during init\n");
ret = -ECOMM;
goto out;
}
if (!(val & FW_IND_INITIALIZED)) {
ath10k_err("failed to receive initialized event from target: %08x\n",
val);