From 2dfc0247f0ff755296ab72ab3ddb8309fb35c660 Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <linux@rempel-privat.de>
Date: Sun, 22 Mar 2015 19:30:01 +0100
Subject: [PATCH] ath9k: use REG_RMW and rmw buffer in ath9k_hw_4k_set_gain

it is possible to reduce time needed for this function
by rplacing REG_WRITE with REG_RMW (plus dummy 0) and putt all commands
in same buffer.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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