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From: Michael Buesch <mb@bu3sch.de>
To: Larry Finger <Larry.Finger@lwfinger.net>
Subject: Re: [RFC V2] b43/legacy: port to cfg80211 rfkill
Date: Sat, 6 Jun 2009 20:00:31 +0200
Cc: Johannes Berg <johannes@sipsolutions.net>,
	linux-wireless@vger.kernel.org
References: <4a2961a7.RxVbjEA4JdOf01BF%Larry.Finger@lwfinger.net> <200906052101.47168.mb@bu3sch.de> <4A298C37.9030503@lwfinger.net>
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Larry, wouldn't it work to do

mutex_lock();
...
if (!initialized) {
	ssb_bus_powerup();
	ssb_device_enable();
	poll_the_bit;
	ssb_device_disable();
	ssb_bus_may_powerdown();
}
...
mutex_unlock();

That would be a _lot_ less heavyweight (at the order of 300 milliseconds less).
And from a power point of view, the PHY and Radio would stay turned off.

-- 
Greetings, Michael.