From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 2 Jun 2015 08:38:32 +0000 (+0200)
Subject: ath9k: fix DMA stop sequence for AR9003+
X-Git-Tag: v3.2.71~83
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0253429b31c2286d1c4eddc9762fa0d9f64f49b3;p=pandora-kernel.git

ath9k: fix DMA stop sequence for AR9003+

commit 300f77c08ded96d33f492aaa02549103852f0c12 upstream.

AR93xx and newer needs to stop rx before tx to avoid getting the DMA
engine or MAC into a stuck state.
This should reduce/fix the occurence of "Failed to stop Tx DMA" logspam.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
[bwh: Backported to 3.2:
 - Also move initialisation of ret to match upstream
 - ath_drain_all_txq() takes a second parameter]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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