From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Drake <dsd@laptop.org>
Subject: Re: [PATCH] mmc: sdio: reset card during power_restore
Date: Wed, 29 Jun 2011 09:56:50 +0100
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To: zhangfei gao <zhangfei.gao@gmail.com>
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On 28 June 2011 10:13, zhangfei gao <zhangfei.gao@gmail.com> wrote:
> Hi, Ohad
>
> One question :(
>
> Under pm_runtime mechanism, how to dynamically open/close wlan.
>
> If the wlan chip really power off, the firmware should be reloaded,
> since the firmware is download to ram and disappear after power off.
> So wlan probe function should be called for re-downloading, is it be
> achieved by calling pm_runtime_get_sync and mmc_power_restore_host?

Here is how I'm doing it for libertas:
http://dev.laptop.org/~dsd/20110610/

See patches 6 and 7.

This is somewhat based off the wl1xxx example that Ohad gave.

Daniel