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ath9k: use REG_RMW and rmw buffer in ath9k_hw_4k_set_gain 

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 <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Oleksij Rempel 2015-03-22 19:30:01 +01:00 committed by Kalle Valo
parent ad10e0d650
commit 2dfc0247f0
1 changed files with 8 additions and 8 deletions
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14
drivers/net/wireless/ath/ath9k/eeprom_4k.c
View File

@ -772,15 +772,14 @@ 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)) |
REG_RMW(ah, AR_PHY_TIMING_CTRL4(0),
SM(pModal->iqCalICh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF) |
SM(pModal->iqCalQCh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF));
SM(pModal->iqCalQCh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF),
AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF | AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF);
if ((eep->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
AR5416_EEP_MINOR_VER_3) {
@ -819,6 +818,7 @@ 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);
}
/*