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authorJohn W. Linville <linville@tuxdriver.com>2014-03-04 13:05:12 -0500
committerJohn W. Linville <linville@tuxdriver.com>2014-03-04 13:05:12 -0500
commitf3b6a488a670f1be2666ab97e31dcfc0b1648884 (patch)
treed8d2431f21d4371c907dec075926e86840e86d1e /drivers/net/wireless/ath/ath9k/hw.c
parentc14c5d99a453af6b86f15aca8fe9005b2b8f3b26 (diff)
parentadb07df1e039e9fe43e66aeea8b4771f83659dbb (diff)
downloadblackbird-obmc-linux-f3b6a488a670f1be2666ab97e31dcfc0b1648884.tar.gz
blackbird-obmc-linux-f3b6a488a670f1be2666ab97e31dcfc0b1648884.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts: drivers/net/wireless/ath/ath9k/recv.c drivers/net/wireless/mwifiex/pcie.c
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 5db01b4212c8..2509c2ff0828 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1533,7 +1533,7 @@ EXPORT_SYMBOL(ath9k_hw_check_nav);
bool ath9k_hw_check_alive(struct ath_hw *ah)
{
int count = 50;
- u32 reg;
+ u32 reg, last_val;
if (AR_SREV_9300(ah))
return !ath9k_hw_detect_mac_hang(ah);
@@ -1541,9 +1541,13 @@ bool ath9k_hw_check_alive(struct ath_hw *ah)
if (AR_SREV_9285_12_OR_LATER(ah))
return true;
+ last_val = REG_READ(ah, AR_OBS_BUS_1);
do {
reg = REG_READ(ah, AR_OBS_BUS_1);
+ if (reg != last_val)
+ return true;
+ last_val = reg;
if ((reg & 0x7E7FFFEF) == 0x00702400)
continue;
@@ -1555,6 +1559,8 @@ bool ath9k_hw_check_alive(struct ath_hw *ah)
default:
return true;
}
+
+ udelay(1);
} while (count-- > 0);
return false;
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