1 files changed, 60 insertions, 0 deletions
diff --git a/package/mac80211/patches/551-ath9k_isr_optimization.patch b/package/mac80211/patches/551-ath9k_isr_optimization.patch
new file mode 100644
index 000000000..dc267f33b
--- /dev/null
+++ b/package/mac80211/patches/551-ath9k_isr_optimization.patch
@@ -0,0 +1,60 @@
+--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+@@ -90,13 +90,10 @@ static bool ar9002_hw_get_isr(struct ath
+ 
+ 		*masked = isr & ATH9K_INT_COMMON;
+ 
+-		if (ah->config.rx_intr_mitigation) {
+-			if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM))
+-				*masked |= ATH9K_INT_RX;
+-		}
+-
+-		if (isr & (AR_ISR_RXOK | AR_ISR_RXERR))
++		if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM |
++			   AR_ISR_RXOK | AR_ISR_RXERR))
+ 			*masked |= ATH9K_INT_RX;
++
+ 		if (isr &
+ 		    (AR_ISR_TXOK | AR_ISR_TXDESC | AR_ISR_TXERR |
+ 		     AR_ISR_TXEOL)) {
+@@ -118,14 +115,6 @@ static bool ar9002_hw_get_isr(struct ath
+ 				  "receive FIFO overrun interrupt\n");
+ 		}
+ 
+-		if (!AR_SREV_9100(ah)) {
+-			if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
+-				u32 isr5 = REG_READ(ah, AR_ISR_S5_S);
+-				if (isr5 & AR_ISR_S5_TIM_TIMER)
+-					*masked |= ATH9K_INT_TIM_TIMER;
+-			}
+-		}
+-
+ 		*masked |= mask2;
+ 	}
+ 
+@@ -136,17 +125,18 @@ static bool ar9002_hw_get_isr(struct ath
+ 		u32 s5_s;
+ 
+ 		s5_s = REG_READ(ah, AR_ISR_S5_S);
+-		if (isr & AR_ISR_GENTMR) {
+-			ah->intr_gen_timer_trigger =
++		ah->intr_gen_timer_trigger =
+ 				MS(s5_s, AR_ISR_S5_GENTIMER_TRIG);
+ 
+-			ah->intr_gen_timer_thresh =
+-				MS(s5_s, AR_ISR_S5_GENTIMER_THRESH);
++		ah->intr_gen_timer_thresh =
++			MS(s5_s, AR_ISR_S5_GENTIMER_THRESH);
+ 
+-			if (ah->intr_gen_timer_trigger)
+-				*masked |= ATH9K_INT_GENTIMER;
++		if (ah->intr_gen_timer_trigger)
++			*masked |= ATH9K_INT_GENTIMER;
+ 
+-		}
++		if ((s5_s & AR_ISR_S5_TIM_TIMER) &&
++		    !(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
++			*masked |= ATH9K_INT_TIM_TIMER;
+ 	}
+ 
+ 	if (sync_cause) {