Return-path: Received: from mout.gmx.net ([212.227.15.19]:57096 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751928AbbCTMlG (ORCPT ); Fri, 20 Mar 2015 08:41:06 -0400 From: Oleksij Rempel To: linux-wireless@vger.kernel.org, ath9k-devel@lists.ath9k.org, kvalo@codeaurora.org, adrian@freebsd.org Cc: Oleksij Rempel Subject: [PATCH 16/18] ath9k: use REG_RMW and rmw buffer in ath9k_hw_4k_set_gain Date: Fri, 20 Mar 2015 13:38:56 +0100 Message-Id: <1426855138-6121-17-git-send-email-linux@rempel-privat.de> (sfid-20150320_140418_703635_4A24D5DF) In-Reply-To: <1426855138-6121-1-git-send-email-linux@rempel-privat.de> References: <1426855138-6121-1-git-send-email-linux@rempel-privat.de> Sender: linux-wireless-owner@vger.kernel.org List-ID: it is possible to reduce time needed for this function by rplacing REG_WRITE with REG_RMW (plus dummy 0) and putt all commands in same buffer. Signed-off-by: Oleksij Rempel --- drivers/net/wireless/ath/ath9k/eeprom_4k.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/eeprom_4k.c b/drivers/net/wireless/ath/ath9k/eeprom_4k.c index 291c1d1..56621be 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c @@ -772,15 +772,16 @@ static void ath9k_hw_4k_set_gain(struct ath_hw *ah, struct ar5416_eeprom_4k *eep, u8 txRxAttenLocal) { - REG_WRITE(ah, AR_PHY_SWITCH_CHAIN_0, - pModal->antCtrlChain[0]); + ENABLE_REG_RMW_BUFFER(ah); + REG_RMW(ah, AR_PHY_SWITCH_CHAIN_0, + pModal->antCtrlChain[0], 0); - REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), - (REG_READ(ah, AR_PHY_TIMING_CTRL4(0)) & - ~(AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF | - AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF)) | - SM(pModal->iqCalICh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF) | - SM(pModal->iqCalQCh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF)); + REG_RMW(ah, AR_PHY_TIMING_CTRL4(0), + (REG_READ(ah, AR_PHY_TIMING_CTRL4(0)) & + ~(AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF | + AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF)) | + SM(pModal->iqCalICh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF) | + SM(pModal->iqCalQCh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF), 0); if ((eep->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >= AR5416_EEP_MINOR_VER_3) { @@ -819,6 +820,7 @@ static void ath9k_hw_4k_set_gain(struct ath_hw *ah, AR9280_PHY_RXGAIN_TXRX_ATTEN, txRxAttenLocal); REG_RMW_FIELD(ah, AR_PHY_RXGAIN + 0x1000, AR9280_PHY_RXGAIN_TXRX_MARGIN, pModal->rxTxMarginCh[0]); + REG_RMW_BUFFER_FLUSH(ah); } /* -- 1.9.1