[ath9k-devel] [PATCH v3 18/18] ath9k: use REG_RMW and rmw buffer in ath9k_hw_def_set_gain

[Oleksij Rempel]

Signed-off-by: Oleksij Rempel <li...@rempel-privat.de>
---
 drivers/net/wireless/ath/ath9k/eeprom_def.c | 34 ++++++++++++-----------------
 1 file changed, 14 insertions(+), 20 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c 
b/drivers/net/wireless/ath/ath9k/eeprom_def.c
index 0980590..056f516 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_def.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c
@@ -466,6 +466,7 @@ static void ath9k_hw_def_set_gain(struct ath_hw *ah,
                                  struct ar5416_eeprom_def *eep,
                                  u8 txRxAttenLocal, int regChainOffset, int i)
 {
+       ENABLE_REG_RMW_BUFFER(ah);
        if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_3) {
                txRxAttenLocal = pModal->txRxAttenCh[i];
 
@@ -483,16 +484,12 @@ static void ath9k_hw_def_set_gain(struct ath_hw *ah,
                              AR_PHY_GAIN_2GHZ_XATTEN2_DB,
                              pModal->xatten2Db[i]);
                } else {
-                       REG_WRITE(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
-                         (REG_READ(ah, AR_PHY_GAIN_2GHZ + regChainOffset) &
-                          ~AR_PHY_GAIN_2GHZ_BSW_MARGIN)
-                         | SM(pModal-> bswMargin[i],
-                              AR_PHY_GAIN_2GHZ_BSW_MARGIN));
-                       REG_WRITE(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
-                         (REG_READ(ah, AR_PHY_GAIN_2GHZ + regChainOffset) &
-                          ~AR_PHY_GAIN_2GHZ_BSW_ATTEN)
-                         | SM(pModal->bswAtten[i],
-                              AR_PHY_GAIN_2GHZ_BSW_ATTEN));
+                       REG_RMW(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
+                               SM(pModal-> bswMargin[i], 
AR_PHY_GAIN_2GHZ_BSW_MARGIN),
+                               AR_PHY_GAIN_2GHZ_BSW_MARGIN);
+                       REG_RMW(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
+                               SM(pModal->bswAtten[i], 
AR_PHY_GAIN_2GHZ_BSW_ATTEN),
+                               AR_PHY_GAIN_2GHZ_BSW_ATTEN);
                }
        }
 
@@ -504,17 +501,14 @@ static void ath9k_hw_def_set_gain(struct ath_hw *ah,
                      AR_PHY_RXGAIN + regChainOffset,
                      AR9280_PHY_RXGAIN_TXRX_MARGIN, pModal->rxTxMarginCh[i]);
        } else {
-               REG_WRITE(ah,
-                         AR_PHY_RXGAIN + regChainOffset,
-                         (REG_READ(ah, AR_PHY_RXGAIN + regChainOffset) &
-                          ~AR_PHY_RXGAIN_TXRX_ATTEN)
-                         | SM(txRxAttenLocal, AR_PHY_RXGAIN_TXRX_ATTEN));
-               REG_WRITE(ah,
-                         AR_PHY_GAIN_2GHZ + regChainOffset,
-                         (REG_READ(ah, AR_PHY_GAIN_2GHZ + regChainOffset) &
-                          ~AR_PHY_GAIN_2GHZ_RXTX_MARGIN) |
-                         SM(pModal->rxTxMarginCh[i], 
AR_PHY_GAIN_2GHZ_RXTX_MARGIN));
+               REG_RMW(ah, AR_PHY_RXGAIN + regChainOffset,
+                       SM(txRxAttenLocal, AR_PHY_RXGAIN_TXRX_ATTEN),
+                       AR_PHY_RXGAIN_TXRX_ATTEN);
+               REG_RMW(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
+                       SM(pModal->rxTxMarginCh[i], 
AR_PHY_GAIN_2GHZ_RXTX_MARGIN),
+                       AR_PHY_GAIN_2GHZ_RXTX_MARGIN);
        }
+       REG_RMW_BUFFER_FLUSH(ah);
 }
 
 static void ath9k_hw_def_set_board_values(struct ath_hw *ah,
-- 
1.9.1

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