ath5k: fix enabling 5/10 mhz channel bandwidth support

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

SVN-Revision: 39758

package/kernel/mac80211/patches/440-ath5k_channel_bw_debugfs.patch

@@ -11,7 +11,7 @@ drivers/net/wireless/ath/ath5k/debug.c |   86 ++++++++++++++++++++++++++++++++
 
 --- a/drivers/net/wireless/ath/ath5k/debug.c
 +++ b/drivers/net/wireless/ath/ath5k/debug.c
-@@ -821,6 +821,89 @@ static const struct file_operations fops
+@@ -821,6 +821,97 @@ static const struct file_operations fops
  	.llseek = default_llseek,
  };
  
@@ -24,7 +24,7 @@ drivers/net/wireless/ath/ath5k/debug.c |   86 ++++++++++++++++++++++++++++++++
 +	char buf[15];
 +	unsigned int len = 0;
 +
-+	int cur_ah_bwmode = ah->ah_bwmode;
++	int cur_ah_bwmode = ah->ah_bwmode_debug;
 +
 +#define print_selected(MODE, LABEL) \
 +	if (cur_ah_bwmode == MODE) \
@@ -77,16 +77,24 @@ drivers/net/wireless/ath/ath5k/debug.c |   86 ++++++++++++++++++++++++++++++++
 +		bw, tobwmode);
 +
 +	switch (ah->ah_radio) {
-+		/* TODO: only define radios that actually support 5/10mhz channels */
-+		case AR5K_RF5413: case AR5K_RF5110: case AR5K_RF5111: case AR5K_RF5112: case AR5K_RF2413: case AR5K_RF2316: case AR5K_RF2317: case AR5K_RF2425:
-+			if(ah->ah_bwmode != tobwmode) {
-+				mutex_lock(&ah->lock);
-+				ah->ah_bwmode = tobwmode;
-+				mutex_unlock(&ah->lock);
-+			}
-+			break;
-+		default:
-+			return -EOPNOTSUPP;
++	/* TODO: only define radios that actually support 5/10mhz channels */
++	case AR5K_RF5413:
++	case AR5K_RF5110:
++	case AR5K_RF5111:
++	case AR5K_RF5112:
++	case AR5K_RF2413:
++	case AR5K_RF2316:
++	case AR5K_RF2317:
++	case AR5K_RF2425:
++		if(ah->ah_bwmode_debug != tobwmode) {
++			mutex_lock(&ah->lock);
++			ah->ah_bwmode = tobwmode;
++			ah->ah_bwmode_debug = tobwmode;
++			mutex_unlock(&ah->lock);
++		}
++		break;
++	default:
++		return -EOPNOTSUPP;
 +	}
 +	return count;
 +}
@@ -101,7 +109,7 @@ drivers/net/wireless/ath/ath5k/debug.c |   86 ++++++++++++++++++++++++++++++++
  
  /* debugfs: queues etc */
  
-@@ -914,6 +997,9 @@ ath5k_debug_init_device(struct ath5k_hw 
+@@ -914,6 +1005,9 @@ ath5k_debug_init_device(struct ath5k_hw 
  	debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah,
  			    &fops_beacon);
  
@@ -111,3 +119,25 @@ drivers/net/wireless/ath/ath5k/debug.c |   86 ++++++++++++++++++++++++++++++++
  	debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset);
  
  	debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah,
+--- a/drivers/net/wireless/ath/ath5k/ath5k.h
++++ b/drivers/net/wireless/ath/ath5k/ath5k.h
+@@ -1369,6 +1369,7 @@ struct ath5k_hw {
+ 	u8			ah_coverage_class;
+ 	bool			ah_ack_bitrate_high;
+ 	u8			ah_bwmode;
++	u8			ah_bwmode_debug;
+ 	bool			ah_short_slot;
+ 
+ 	/* Antenna Control */
+--- a/drivers/net/wireless/ath/ath5k/base.c
++++ b/drivers/net/wireless/ath/ath5k/base.c
+@@ -466,6 +466,9 @@ ath5k_chan_set(struct ath5k_hw *ah, stru
+ 		return -EINVAL;
+ 	}
+ 
++	if (ah->ah_bwmode_debug != AR5K_BWMODE_DEFAULT)
++		ah->ah_bwmode = ah->ah_bwmode_debug;
++
+ 	/*
+ 	 * To switch channels clear any pending DMA operations;
+ 	 * wait long enough for the RX fifo to drain, reset the