From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 16 Sep 2013 05:06:59 +0000 (+0530)
Subject: ath9k: Fix NF calibration for single stream cards
X-Git-Tag: v3.13-rc1~105^2~225^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a5b7ab36b46615874da3764b99c9d26c1e6750d;p=pandora-kernel.git

ath9k: Fix NF calibration for single stream cards

Rather than using the chip ID to read only chain-0 CCA
registers and avoid reading chain-1, use the RX chainmask
instead. There are some 1-stream PCI devices based on AR9287
such as TL-WN751ND. Improper NF calibration might result in
DMA errors/timeouts.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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