From 5f139eba4174d9a3343efc7cfb8a0a9cb184c647 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Mon, 6 Dec 2010 04:27:53 -0800 Subject: [PATCH] ath9k_hw: Configure power control only for the supported chains Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 28 +++++++++++++++----------- 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index 76508f8..1f5aa51 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -4260,23 +4260,27 @@ static int ar9003_hw_power_control_override(struct ath_hw *ah, REG_RMW(ah, AR_PHY_TPC_11_B0, (correction[0] << AR_PHY_TPC_OLPC_GAIN_DELTA_S), AR_PHY_TPC_OLPC_GAIN_DELTA); - REG_RMW(ah, AR_PHY_TPC_11_B1, - (correction[1] << AR_PHY_TPC_OLPC_GAIN_DELTA_S), - AR_PHY_TPC_OLPC_GAIN_DELTA); - REG_RMW(ah, AR_PHY_TPC_11_B2, - (correction[2] << AR_PHY_TPC_OLPC_GAIN_DELTA_S), - AR_PHY_TPC_OLPC_GAIN_DELTA); + if (ah->caps.tx_chainmask & BIT(1)) + REG_RMW(ah, AR_PHY_TPC_11_B1, + (correction[1] << AR_PHY_TPC_OLPC_GAIN_DELTA_S), + AR_PHY_TPC_OLPC_GAIN_DELTA); + if (ah->caps.tx_chainmask & BIT(2)) + REG_RMW(ah, AR_PHY_TPC_11_B2, + (correction[2] << AR_PHY_TPC_OLPC_GAIN_DELTA_S), + AR_PHY_TPC_OLPC_GAIN_DELTA); /* enable open loop power control on chip */ REG_RMW(ah, AR_PHY_TPC_6_B0, (3 << AR_PHY_TPC_6_ERROR_EST_MODE_S), AR_PHY_TPC_6_ERROR_EST_MODE); - REG_RMW(ah, AR_PHY_TPC_6_B1, - (3 << AR_PHY_TPC_6_ERROR_EST_MODE_S), - AR_PHY_TPC_6_ERROR_EST_MODE); - REG_RMW(ah, AR_PHY_TPC_6_B2, - (3 << AR_PHY_TPC_6_ERROR_EST_MODE_S), - AR_PHY_TPC_6_ERROR_EST_MODE); + if (ah->caps.tx_chainmask & BIT(1)) + REG_RMW(ah, AR_PHY_TPC_6_B1, + (3 << AR_PHY_TPC_6_ERROR_EST_MODE_S), + AR_PHY_TPC_6_ERROR_EST_MODE); + if (ah->caps.tx_chainmask & BIT(2)) + REG_RMW(ah, AR_PHY_TPC_6_B2, + (3 << AR_PHY_TPC_6_ERROR_EST_MODE_S), + AR_PHY_TPC_6_ERROR_EST_MODE); /* * enable temperature compensation -- 2.7.4