From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 16 Dec 2013 01:34:59 +0000 (+0530)
Subject: ath9k: Fix interrupt handling for the AR9002 family
X-Git-Tag: v3.2.55~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5982c7fe4acf612e50738475c2c7f2eb47ec7ec2;p=pandora-kernel.git

ath9k: Fix interrupt handling for the AR9002 family

commit 73f0b56a1ff64e7fb6c3a62088804bab93bcedc2 upstream.

This patch adds a driver workaround for a HW issue.

A race condition in the HW results in missing interrupts,
which can be avoided by a read/write with the ISR register.
All chips in the AR9002 series are affected by this bug - AR9003
and above do not have this problem.

Cc: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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