package/kernel/mac80211/patches/332-ath9k-ath9k_hw_analog_shift_rmw-use-REG_RMW.patch

   1 From: Oleksij Rempel <linux@rempel-privat.de>
   2 Date: Sun, 22 Mar 2015 19:29:59 +0100
   3 Subject: [PATCH] ath9k: ath9k_hw_analog_shift_rmw: use REG_RMW
   4
   5 use REG_RMW in ath9k_hw_analog_shift_rmw.
   6 It will double execution speed on usb bus.
   7
   8 Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
   9 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  10 ---
  11
  12 --- a/drivers/net/wireless/ath/ath9k/eeprom.c
  13 +++ b/drivers/net/wireless/ath/ath9k/eeprom.c
  14 @@ -27,12 +27,7 @@ void ath9k_hw_analog_shift_regwrite(stru
  15  void ath9k_hw_analog_shift_rmw(struct ath_hw *ah, u32 reg, u32 mask,
  16                                u32 shift, u32 val)
  17  {
  18 -       u32 regVal;
  19 -
  20 -       regVal = REG_READ(ah, reg) & ~mask;
  21 -       regVal |= (val << shift) & mask;
  22 -
  23 -       REG_WRITE(ah, reg, regVal);
  24 +       REG_RMW(ah, reg, ((val << shift) & mask), mask);
  25
  26         if (ah->config.analog_shiftreg)
  27                 udelay(100);