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authorLuis R. Rodriguez <lrodriguez@atheros.com>2010-06-12 00:33:41 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-06-14 15:39:29 -0400
commit6e97f0fb4dc8e95cd7507f3ae89841a79bac0193 (patch)
treef5399f33d9894fb41b3c6f1d1d0d8c0186db3373 /drivers/net/wireless/ath/ath9k/ani.c
parent37e5bf6535a4d697fb9fa6f268a8354a612cbc00 (diff)
ath9k_hw: clear MIB interrupt causes when skipping ANI adjustments
We get an MIB interrupt when we hit certain PHY error counter thresholds. If ANI is disabled but the MIB interrupt is enabled we'll keep around the old MIB interrupt causes. Since ath9k disables the MIB interrupt when ANI is disabled this is not a fix, but more of a sanity fix in case we ever need the MIB interrupt enabled but disabling ANI. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ani.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ani.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index e879055c058..66d0b8846a0 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -585,8 +585,15 @@ void ath9k_hw_procmibevent(struct ath_hw *ah)
/* Clear the mib counters and save them in the stats */
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
- if (!DO_ANI(ah))
+ if (!DO_ANI(ah)) {
+ /*
+ * We must always clear the interrupt cause by
+ * resetting the phy error regs.
+ */
+ REG_WRITE(ah, AR_PHY_ERR_1, 0);
+ REG_WRITE(ah, AR_PHY_ERR_2, 0);
return;
+ }
/* NB: these are not reset-on-read */
phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);