ath9k_hw: set cwmin and cwmax to 0 for for AR9003 upon txq reset

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 44ea43a143d8..c003baf2e937 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -533,6 +533,12 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
                              AR_D_MISC_ARB_LOCKOUT_CNTRL_S)
                           | AR_D_MISC_BEACON_USE
                           | AR_D_MISC_POST_FR_BKOFF_DIS);
+                /* cwmin and cwmax should be 0 for beacon queue */
+                if (AR_SREV_9300_20_OR_LATER(ah)) {
+                        REG_WRITE(ah, AR_DLCL_IFS(q), SM(0, AR_D_LCL_IFS_CWMIN)
+                                  | SM(0, AR_D_LCL_IFS_CWMAX)
+                                  | SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS));
+                }
                 break;
         case ATH9K_TX_QUEUE_CAB:
                 REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q))