+@@ -975,7 +975,10 @@ void ath9k_hw_init_global_settings(struc
+ if (ah->misc_mode != 0)
+ REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
+
+- rx_lat = 37;
++ if (IS_CHAN_A_FAST_CLOCK(ah, chan))
++ rx_lat = 41;
++ else
++ rx_lat = 37;
+ tx_lat = 54;
+
+ if (IS_CHAN_HALF_RATE(chan)) {
+@@ -989,7 +992,7 @@ void ath9k_hw_init_global_settings(struc
+ sifstime = 32;
+ } else if (IS_CHAN_QUARTER_RATE(chan)) {
+ eifs = 340;
+- rx_lat *= 4;
++ rx_lat = (rx_lat * 4) - 1;
+ tx_lat *= 4;
+ if (IS_CHAN_A_FAST_CLOCK(ah, chan))
+ tx_lat += 22;
+@@ -997,8 +1000,14 @@ void ath9k_hw_init_global_settings(struc