openwrtv3/package/kernel/mac80211/patches/332-ath9k_hw-start-initial-NF-calibration-after-PA-calib.patch

From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 18 Oct 2014 13:42:03 +0200
Subject: [PATCH] ath9k_hw: start initial NF calibration after PA
 calibration on <AR9003

This makes the initial NF calibration less likely to fail.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---

--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
@@ -856,6 +856,8 @@ static bool ar9002_hw_init_cal(struct at
 
 	/* Do PA Calibration */
 	ar9002_hw_pa_cal(ah, true);
+	ath9k_hw_loadnf(ah, chan);
+	ath9k_hw_start_nfcal(ah, true);
 
 	if (ah->caldata)
 		set_bit(NFCAL_PENDING, &ah->caldata->cal_flags);
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1953,8 +1953,10 @@ int ath9k_hw_reset(struct ath_hw *ah, st
 	if (ath9k_hw_mci_is_enabled(ah))
 		ar9003_mci_check_bt(ah);
 
-	ath9k_hw_loadnf(ah, chan);
-	ath9k_hw_start_nfcal(ah, true);
+	if (AR_SREV_9300_20_OR_LATER(ah)) {
+		ath9k_hw_loadnf(ah, chan);
+		ath9k_hw_start_nfcal(ah, true);
+	}
 
 	if (AR_SREV_9300_20_OR_LATER(ah))
 		ar9003_hw_bb_watchdog_config(ah);