Return-path: Received: from nbd.name ([46.4.11.11]:39566 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754588Ab2DSTSg (ORCPT ); Thu, 19 Apr 2012 15:18:36 -0400 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com, mcgrof@qca.qualcomm.com Subject: [PATCH v3 6/8] ath9k_hw: disable Tx IQ calibration on half/quarter channels Date: Thu, 19 Apr 2012 21:18:27 +0200 Message-Id: <1334863109-95726-6-git-send-email-nbd@openwrt.org> (sfid-20120419_211840_264660_693E5587) In-Reply-To: <1334863109-95726-5-git-send-email-nbd@openwrt.org> References: <1334863109-95726-1-git-send-email-nbd@openwrt.org> <1334863109-95726-2-git-send-email-nbd@openwrt.org> <1334863109-95726-3-git-send-email-nbd@openwrt.org> <1334863109-95726-4-git-send-email-nbd@openwrt.org> <1334863109-95726-5-git-send-email-nbd@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: It does not work properly and reduces throughput. Signed-off-by: Felix Fietkau --- drivers/net/wireless/ath/ath9k/ar9003_calib.c | 10 ++++++---- 1 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 63089cc..a0387a0 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -1000,10 +1000,12 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, if (mci && IS_CHAN_2GHZ(chan) && run_agc_cal) ar9003_mci_init_cal_req(ah, &is_reusable); - txiqcal_done = ar9003_hw_tx_iq_cal_run(ah); - REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); - udelay(5); - REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); + if (!(IS_CHAN_HALF_RATE(chan) || IS_CHAN_QUARTER_RATE(chan))) { + txiqcal_done = ar9003_hw_tx_iq_cal_run(ah); + REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); + udelay(5); + REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); + } skip_tx_iqcal: if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) { -- 1.7.3.2