From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jason <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>
Subject: Re: [PULL REQUEST v2] ARM: kirkwood: fdt: convert kirkwood init
 funcs to fdt
Date: Mon, 5 Mar 2012 15:29:41 -0500
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To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: Nicolas Pitre <nicolas.pitre-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
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On Mon, Mar 05, 2012 at 08:16:26PM +0000, Arnd Bergmann wrote:
> On Monday 05 March 2012, Jason wrote:
> > > 
> > > The clock frequency part being hardcoded to 200000 in the common .dtsi 
> > > file looks wrong.  The clock may differ, and it used to (and should) be 
> > > probed at run time, please see kirkwood_find_tclk().
> > 
> > So, should I EXPORT_SYMBOL_GPL(kirkwood_find_tclk); and have each driver
> > call it?
> 
> If the drivers want to use it, I think it has to be orion_find_tclk for
> drivers that are shared between multiple plat-orion platforms.

That's pretty much all of them  :-)

I'll rename it and move it to plat-orion/common.c.  This'll be fun.

> > One alternate idea I had was to have kirkwood-dreamplug.dts root hold
> > 
> > tclk: clock-frequency = <200000000>;
> > 
> > and then have the drivers ask for it.  afaict, tclk is constant per
> > board.
> > 
> > I'm fine with either way, but I'd rather have it in the dt.
> 
> IMHO it's best to leave any such hacks out of the device tree for
> now, until we have the proper clk bindings in place for kirkwood,
> and then we can just use those.

Ok.

thx,

Jason.