From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 12 Jun 2010 04:33:54 +0000 (-0400)
Subject: ath9k: fix extending the rx timestamp with the hardware TSF
X-Git-Tag: v2.6.36-rc1~571^2~540^2~60
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a6d2055b02dde1067075795274672720baadd3ca;p=pandora-kernel.git

ath9k: fix extending the rx timestamp with the hardware TSF

AR5416 and all newer chipsets use a 32 bit rx timestamp, so there
is no need to keep the 15 bit timestamp extending logic around.

This patch removes ath9k_hw_extend_tsf (replaced by a call to
ath9k_hw_gettsf64), and reduces the frequency of TSF reads, which
can improve performance in some cases.

This change also has the side effect of making rx timestamps
more accurate.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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