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Commit 2dfc0247 authored by Oleksij Rempel's avatar Oleksij Rempel Committed by Kalle Valo
Browse files

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: default avatarOleksij Rempel <linux@rempel-privat.de>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent ad10e0d6

drivers/net/wireless/ath/ath9k/eeprom_4k.c

+8 −8
Original line number Diff line number Diff line
@@ -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);

}



/*