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ath9k_hw: Fix calculation of PAPRD training power at 5Ghz

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higher the chainmask, lesser the power_delta to be added
to the paprd_training_power

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Mohammed Shafi Shajakhan 2011-06-21 14:51:46 +05:30 committed by John W. Linville
parent 9720bb3ab0
commit 7952ca5b20
1 changed files with 17 additions and 1 deletions
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18
drivers/net/wireless/ath/ath9k/ar9003_paprd.c
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@ -83,7 +83,23 @@ static int ar9003_get_training_power_5g(struct ath_hw *ah)
if (delta > scale)
return -1;
power += 2 * get_streams(common->tx_chainmask);
switch (get_streams(common->tx_chainmask)) {
case 1:
delta = 6;
break;
case 2:
delta = 4;
break;
case 3:
delta = 2;
break;
default:
delta = 0;
ath_dbg(common, ATH_DBG_CALIBRATE,
"Invalid tx-chainmask: %u\n", common->tx_chainmask);
}
power += delta;
return power;
}