From: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Date: Mon, 11 Jun 2012 06:49:32 +0000 (+0530)
Subject: ath9k_hw: check GPM HW write pointer before chip reset
X-Git-Tag: v3.6-rc1~125^2~57^2~307
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3863495b86d8ee8e7e70a328de5b88d555d7305a;p=pandora-kernel.git

ath9k_hw: check GPM HW write pointer before chip reset

Both "MAC Warm Reset" and "MCI Reset Rx" will reset GPM HW write_ptr.
We should check software cached write_ptr against HW write_ptr before
reset. Otherwise the pending DMA data will be lost.

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