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ath9k_hw: clear MIB interrupt causes when skipping ANI adjustments

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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>
This commit is contained in:
Luis R. Rodriguez 2010-06-12 00:33:41 -04:00 committed by John W. Linville
parent 37e5bf6535
commit 6e97f0fb4d
1 changed files with 8 additions and 1 deletions
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9
drivers/net/wireless/ath/ath9k/ani.c
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@ -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);