ath9k: further reduce false baseband hang detects on older chips

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

SVN-Revision: 39847

5 files changed, 22 insertions, 17 deletions

diff --git a/package/kernel/mac80211/patches/300-pending_work.patch b/package/kernel/mac80211/patches/300-pending_work.patch
index 548f304024..e4eaecfd41 100644
--- a/package/kernel/mac80211/patches/300-pending_work.patch
+++ b/package/kernel/mac80211/patches/300-pending_work.patch
@@ -1,3 +1,16 @@
+commit fcb064fdd5a27bec8d24099bc0172468f34c97cb
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Sun Mar 9 09:43:09 2014 +0100
+
+    ath9k_hw: fix unreachable code in baseband hang detection code
+    
+    The commit "ath9k: reduce baseband hang detection false positive rate"
+    added a delay in the loop checking the baseband state, however it was
+    unreachable due to previous 'continue' statements.
+    
+    Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
+    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+
 commit 31959d8df39319e32c6d5ba9c135727be90cfad7
 Author: Michal Kazior <michal.kazior@tieto.com>
 Date:   Fri Mar 7 08:09:38 2014 +0100
@@ -1197,7 +1210,7 @@ Date:   Thu Jan 23 20:06:34 2014 +0100
  
  	if (AR_SREV_9300(ah))
  		return !ath9k_hw_detect_mac_hang(ah);
-@@ -1542,9 +1542,13 @@ bool ath9k_hw_check_alive(struct ath_hw 
+@@ -1542,9 +1542,14 @@ bool ath9k_hw_check_alive(struct ath_hw 
  	if (AR_SREV_9285_12_OR_LATER(ah))
  		return true;
  
@@ -1207,20 +1220,12 @@ Date:   Thu Jan 23 20:06:34 2014 +0100
 +		if (reg != last_val)
 +			return true;
  
++		udelay(1);
 +		last_val = reg;
  		if ((reg & 0x7E7FFFEF) == 0x00702400)
  			continue;
  
-@@ -1556,6 +1560,8 @@ bool ath9k_hw_check_alive(struct ath_hw 
- 		default:
- 			return true;
- 		}
-+
-+		udelay(1);
- 	} while (count-- > 0);
- 
- 	return false;
-@@ -2051,9 +2057,8 @@ static bool ath9k_hw_set_power_awake(str
+@@ -2051,9 +2056,8 @@ static bool ath9k_hw_set_power_awake(str
  
  	REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
  		    AR_RTC_FORCE_WAKE_EN);
diff --git a/package/kernel/mac80211/patches/523-ath9k_use_configured_antenna_gain.patch b/package/kernel/mac80211/patches/523-ath9k_use_configured_antenna_gain.patch
index 674c59756e..30aa9ee187 100644
--- a/package/kernel/mac80211/patches/523-ath9k_use_configured_antenna_gain.patch
+++ b/package/kernel/mac80211/patches/523-ath9k_use_configured_antenna_gain.patch
@@ -10,7 +10,7 @@
  
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -2722,7 +2722,7 @@ void ath9k_hw_apply_txpower(struct ath_h
+@@ -2721,7 +2721,7 @@ void ath9k_hw_apply_txpower(struct ath_h
  	channel = chan->chan;
  	chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
  	new_pwr = min_t(int, chan_pwr, reg->power_limit);
diff --git a/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch b/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch
index c695df2835..eefe5e7bdf 100644
--- a/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch
+++ b/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch
@@ -94,7 +94,7 @@
  struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -1736,6 +1736,20 @@ fail:
+@@ -1735,6 +1735,20 @@ fail:
  	return -EINVAL;
  }
  
@@ -115,7 +115,7 @@
  int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
  		   struct ath9k_hw_cal_data *caldata, bool fastcc)
  {
-@@ -1941,6 +1955,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+@@ -1940,6 +1954,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
  		ar9003_hw_disable_phy_restart(ah);
  
  	ath9k_hw_apply_gpio_override(ah);
diff --git a/package/kernel/mac80211/patches/543-ath9k-allow-to-disable-bands-via-platform-data.patch b/package/kernel/mac80211/patches/543-ath9k-allow-to-disable-bands-via-platform-data.patch
index 08a1a0f6f3..d26a5af865 100644
--- a/package/kernel/mac80211/patches/543-ath9k-allow-to-disable-bands-via-platform-data.patch
+++ b/package/kernel/mac80211/patches/543-ath9k-allow-to-disable-bands-via-platform-data.patch
@@ -11,7 +11,7 @@
  	int (*external_reset)(void);
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -2329,17 +2329,25 @@ int ath9k_hw_fill_cap_info(struct ath_hw
+@@ -2328,17 +2328,25 @@ int ath9k_hw_fill_cap_info(struct ath_hw
  	}
  
  	eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
diff --git a/package/kernel/mac80211/patches/566-ath9k-ar933x-usb-hang-workaround.patch b/package/kernel/mac80211/patches/566-ath9k-ar933x-usb-hang-workaround.patch
index 87292e446d..af94c9e312 100644
--- a/package/kernel/mac80211/patches/566-ath9k-ar933x-usb-hang-workaround.patch
+++ b/package/kernel/mac80211/patches/566-ath9k-ar933x-usb-hang-workaround.patch
@@ -40,7 +40,7 @@
  	return true;
  }
  
-@@ -1731,8 +1750,14 @@ static int ath9k_hw_do_fastcc(struct ath
+@@ -1730,8 +1749,14 @@ static int ath9k_hw_do_fastcc(struct ath
  	if (AR_SREV_9271(ah))
  		ar9002_hw_load_ani_reg(ah, chan);
  
@@ -55,7 +55,7 @@
  	return -EINVAL;
  }
  
-@@ -1960,6 +1985,9 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+@@ -1959,6 +1984,9 @@ int ath9k_hw_reset(struct ath_hw *ah, st
  	if (AR_SREV_9565(ah) && common->bt_ant_diversity)
  		REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);