From bfbee42793a564762d2681d88dc19f4c2d8ee6fd Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Wed, 12 Sep 2012 18:59:20 +0530 Subject: [PATCH] ath9k_hw: fix ar9462 selfgen chainmask When the 9462 is operating in 2G mode and MCI is enabled then reduce the selfgen chain mask to chain 1. Otherwise poor performance was reported at short range at Rx side when COEX is enabled. Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_mci.c | 1 + drivers/net/wireless/ath/ath9k/ar9003_phy.c | 3 --- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c index b2e39e8a21b..f6eb43ee87e 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c @@ -1027,6 +1027,7 @@ void ar9003_mci_2g5g_switch(struct ath_hw *ah, bool force) if (!(mci->config & ATH_MCI_CONFIG_DISABLE_OSLA)) ar9003_mci_osla_setup(ah, true); + REG_WRITE(ah, AR_SELFGEN_MASK, 0x02); } else { ar9003_mci_send_lna_take(ah, true); udelay(5); diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 0d800c62e22..158b50d3a85 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -605,9 +605,6 @@ static void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx) if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7)) REG_WRITE(ah, AR_SELFGEN_MASK, 0x3); - else if (AR_SREV_9462(ah)) - /* xxx only when MCI support is enabled */ - REG_WRITE(ah, AR_SELFGEN_MASK, 0x3); else REG_WRITE(ah, AR_SELFGEN_MASK, tx); -- 2.46.0