ath5k: use ctl settings based on current regdomain

Update ath5k to use the ctl settings for tx power based on current
regulatory domain.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath5k/phy.c

@@ -2158,8 +2158,6 @@ ath5k_get_rate_pcal_data(struct ath5k_hw *ah,
  * Get the max edge power for this channel if
  * we have such data from EEPROM's Conformance Test
  * Limits (CTL), and limit max power if needed.
- *
- * FIXME: Only works for world regulatory domains
  */
 static void
 ath5k_get_max_ctl_power(struct ath5k_hw *ah,
@@ -2175,26 +2173,23 @@ ath5k_get_max_ctl_power(struct ath5k_hw *ah,
 	u8 ctl_idx = 0xFF;
 	u32 target = channel->center_freq;
 
-	/* Find out a CTL for our mode that's not mapped
-	 * on a specific reg domain.
-	 *
-	 * TODO: Map our current reg domain to one of the 3 available
-	 * reg domain ids so that we can support more CTLs. */
+	ctl_mode = ath_regd_get_band_ctl(&ah->ah_regulatory, channel->band);
+
 	switch (channel->hw_value & CHANNEL_MODES) {
 	case CHANNEL_A:
-		ctl_mode = AR5K_CTL_11A | AR5K_CTL_NO_REGDOMAIN;
+		ctl_mode |= AR5K_CTL_11A;
 		break;
 	case CHANNEL_G:
-		ctl_mode = AR5K_CTL_11G | AR5K_CTL_NO_REGDOMAIN;
+		ctl_mode |= AR5K_CTL_11G;
 		break;
 	case CHANNEL_B:
-		ctl_mode = AR5K_CTL_11B | AR5K_CTL_NO_REGDOMAIN;
+		ctl_mode |= AR5K_CTL_11B;
 		break;
 	case CHANNEL_T:
-		ctl_mode = AR5K_CTL_TURBO | AR5K_CTL_NO_REGDOMAIN;
+		ctl_mode |= AR5K_CTL_TURBO;
 		break;
 	case CHANNEL_TG:
-		ctl_mode = AR5K_CTL_TURBOG | AR5K_CTL_NO_REGDOMAIN;
+		ctl_mode |= AR5K_CTL_TURBOG;
 		break;
 	case CHANNEL_XR:
 		/* Fall through */