48 lines
1.7 KiB
Diff
48 lines
1.7 KiB
Diff
From: Oleksij Rempel <linux@rempel-privat.de>
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Date: Sun, 22 Mar 2015 19:30:01 +0100
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Subject: [PATCH] ath9k: use REG_RMW and rmw buffer in
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ath9k_hw_4k_set_gain
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it is possible to reduce time needed for this function
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by rplacing REG_WRITE with REG_RMW (plus dummy 0) and putt all commands
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in same buffer.
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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--- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
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+++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
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@@ -772,15 +772,14 @@ static void ath9k_hw_4k_set_gain(struct
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struct ar5416_eeprom_4k *eep,
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u8 txRxAttenLocal)
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{
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- REG_WRITE(ah, AR_PHY_SWITCH_CHAIN_0,
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- pModal->antCtrlChain[0]);
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-
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- REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0),
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- (REG_READ(ah, AR_PHY_TIMING_CTRL4(0)) &
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- ~(AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF |
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- AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF)) |
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- SM(pModal->iqCalICh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF) |
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- SM(pModal->iqCalQCh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF));
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+ ENABLE_REG_RMW_BUFFER(ah);
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+ REG_RMW(ah, AR_PHY_SWITCH_CHAIN_0,
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+ pModal->antCtrlChain[0], 0);
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+
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+ REG_RMW(ah, AR_PHY_TIMING_CTRL4(0),
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+ SM(pModal->iqCalICh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF) |
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+ SM(pModal->iqCalQCh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF),
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+ AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF | AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF);
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if ((eep->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
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AR5416_EEP_MINOR_VER_3) {
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@@ -819,6 +818,7 @@ static void ath9k_hw_4k_set_gain(struct
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AR9280_PHY_RXGAIN_TXRX_ATTEN, txRxAttenLocal);
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REG_RMW_FIELD(ah, AR_PHY_RXGAIN + 0x1000,
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AR9280_PHY_RXGAIN_TXRX_MARGIN, pModal->rxTxMarginCh[0]);
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+ REG_RMW_BUFFER_FLUSH(ah);
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}
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/*
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