ath9k: fix initial noise floor calibration on older chips

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 41156

diff --git a/package/kernel/mac80211/patches/567-ath9k_fix_init_nfcal.patch b/package/kernel/mac80211/patches/567-ath9k_fix_init_nfcal.patch
new file mode 100644 (file)
index 0000000..8a4be73
--- /dev/null
+++ b/package/kernel/mac80211/patches/567-ath9k_fix_init_nfcal.patch
@@ -0,0 +1,25 @@
+--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+@@ -854,6 +854,7 @@ static bool ar9002_hw_init_cal(struct at
+ 
+       /* Do PA Calibration */
+       ar9002_hw_pa_cal(ah, true);
++      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
+@@ -1969,8 +1969,10 @@ 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);