From 7952ca5b20e1d54a3bfdfd976086c6f9df5873a2 Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan Date: Tue, 21 Jun 2011 14:51:46 +0530 Subject: [PATCH] ath9k_hw: Fix calculation of PAPRD training power at 5Ghz higher the chainmask, lesser the power_delta to be added to the paprd_training_power Signed-off-by: Mohammed Shafi Shajakhan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_paprd.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index fc9c08f513cf..8f6d11dfa371 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -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; } -- 2.20.1