ath9k: INI update for AR9285 and periodic PA offset caliberation

This patch updates the initvalues for AR9285 chipset and also adds
periodic PA offset caliberation.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/hw.c

@@ -678,6 +678,7 @@ static struct ath_hw *ath9k_hw_do_attach(u16 devid, struct ath_softc *sc,
 		ah->hw_version.macVersion, ah->hw_version.macRev);
 
 	if (AR_SREV_9285_12_OR_LATER(ah)) {
+
 		INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2,
 			       ARRAY_SIZE(ar9285Modes_9285_1_2), 6);
 		INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2,
@@ -817,6 +818,22 @@ static struct ath_hw *ath9k_hw_do_attach(u16 devid, struct ath_softc *sc,
 	if (ecode != 0)
 		goto bad;
 
+	if (AR_SREV_9285_12_OR_LATER(ah)) {
+		u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
+
+		/* txgain table */
+		if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
+			INIT_INI_ARRAY(&ah->iniModesTxGain,
+			ar9285Modes_high_power_tx_gain_9285_1_2,
+			ARRAY_SIZE(ar9285Modes_high_power_tx_gain_9285_1_2), 6);
+		} else {
+			INIT_INI_ARRAY(&ah->iniModesTxGain,
+			ar9285Modes_original_tx_gain_9285_1_2,
+			ARRAY_SIZE(ar9285Modes_original_tx_gain_9285_1_2), 6);
+		}
+
+	}
+
 	/* rxgain table */
 	if (AR_SREV_9280_20(ah))
 		ath9k_hw_init_rxgain_ini(ah);
@@ -1293,7 +1310,8 @@ static int ath9k_hw_process_ini(struct ath_hw *ah,
 	if (AR_SREV_9280(ah))
 		REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
 
-	if (AR_SREV_9280(ah))
+	if (AR_SREV_9280(ah) || (AR_SREV_9285(ah) &&
+	    AR_SREV_9285_12_OR_LATER(ah)))
 		REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
 
 	for (i = 0; i < ah->iniCommon.ia_rows; i++) {