ath9k: enable per-packet TPC on AR9002 based chips

Enable per-packet TPC on AR9002 based chips by default

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/ath/ath9k/debug.c

@@ -1078,11 +1078,6 @@ static ssize_t write_file_tpc(struct file *file, const char __user *user_buf,
 	ssize_t len;
 	bool tpc_enabled;
 
-	if (!AR_SREV_9300_20_OR_LATER(ah)) {
-		/* ar9002 does not support TPC for the moment */
-		return -EOPNOTSUPP;
-	}
-
 	len = min(count, sizeof(buf) - 1);
 	if (copy_from_user(buf, user_buf, len))
 		return -EFAULT;

drivers/net/wireless/ath/ath9k/hw.c

@@ -424,8 +424,7 @@ static void ath9k_hw_init_defaults(struct ath_hw *ah)
 	ah->power_mode = ATH9K_PM_UNDEFINED;
 	ah->htc_reset_init = true;
 
-	/* ar9002 does not support TPC for the moment */
-	ah->tpc_enabled = !!AR_SREV_9300_20_OR_LATER(ah);
+	ah->tpc_enabled = true;
 
 	ah->ani_function = ATH9K_ANI_ALL;
 	if (!AR_SREV_9300_20_OR_LATER(ah))