ath5k: dont use external sleep clock in AP mode

commit 5d6ce628f986d1a3c523cbb0a5a52095c48cc332 upstream

When using the external sleep clock in AP mode, the
TSF increments too quickly, causing beacon interval
to be much lower than it is supposed to be, resulting
in lots of beacon-not-ready interrupts.

This fixes http://bugzilla.kernel.org/show_bug.cgi?id=14802.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Cc: Luis Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
index 34e13c7008497c5a270832874b096fe118988ad7..257ea18c849f3c5376a53163d025ccf1fdc6ee3f 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -1382,8 +1382,9 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
         * Set clocks to 32KHz operation and use an
         * external 32KHz crystal when sleeping if one
         * exists */
-       if (ah->ah_version == AR5K_AR5212)
-                       ath5k_hw_set_sleep_clock(ah, true);
+       if (ah->ah_version == AR5K_AR5212 &&
+           ah->ah_op_mode != NL80211_IFTYPE_AP)
+               ath5k_hw_set_sleep_clock(ah, true);
 
        /*
         * Disable beacons and reset the register