Author: nbd
Date: 2014-06-12 13:41:12 +0200 (Thu, 12 Jun 2014)
New Revision: 41156

Added:
   trunk/package/kernel/mac80211/patches/567-ath9k_fix_init_nfcal.patch
Log:
ath9k: fix initial noise floor calibration on older chips

Signed-off-by: Felix Fietkau <[email protected]>

Added: trunk/package/kernel/mac80211/patches/567-ath9k_fix_init_nfcal.patch
===================================================================
--- trunk/package/kernel/mac80211/patches/567-ath9k_fix_init_nfcal.patch        
                        (rev 0)
+++ trunk/package/kernel/mac80211/patches/567-ath9k_fix_init_nfcal.patch        
2014-06-12 11:41:12 UTC (rev 41156)
@@ -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);
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