From: Sujith <m.sujith@gmail.com>
To: linville@tuxdriver.com
Cc: linux-wireless@vger.kernel.org, Sujith.Manoharan@atheros.com
Subject: [PATCH 2/5] ath9k_hw: Fix calibration for AR9287 devices
Date: Tue, 4 Jan 2011 13:16:54 +0530 [thread overview]
Message-ID: <19746.53358.813179.593419@gargle.gargle.HOWL> (raw)
From: Sujith Manoharan <Sujith.Manoharan@atheros.com>
AR9287 based devices have issues with ADC gain calibration
which would cause uplink throughput drops in HT40 mode.
Remove ADC gain from the supported calibration algorithms.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
---
drivers/net/wireless/ath/ath9k/ar9002_calib.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_calib.c b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
index 01880aa..ea2e7d7 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
@@ -954,6 +954,9 @@ static void ar9002_hw_init_cal_settings(struct ath_hw *ah)
&adc_dc_cal_multi_sample;
}
ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
+
+ if (AR_SREV_9287(ah))
+ ah->supp_cals &= ~ADC_GAIN_CAL;
}
}
--
1.7.3.4
reply other threads:[~2011-01-04 7:47 UTC|newest]
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