linux-kernel - Re: [PATCH] clk: at91: add generated clock driver

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Message-ID: <20150618093344.7d486e97@bbrezillon>
Date:	Thu, 18 Jun 2015 09:33:44 +0200
From:	Boris Brezillon <boris.brezillon@...e-electrons.com>
To:	Paul Bolle <pebolle@...cali.nl>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	linux-arm-kernel@...ts.infradead.org,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Ludovic Desroches <ludovic.desroches@...el.com>,
	Josh Wu <josh.wu@...el.com>, linux-kernel@...r.kernel.org,
	mturquette@...libre.com
Subject: Re: [PATCH] clk: at91: add generated clock driver

Hi Paul,

On Thu, 18 Jun 2015 09:12:36 +0200
Paul Bolle <pebolle@...cali.nl> wrote:

> On Wed, 2015-06-17 at 15:23 +0200, Nicolas Ferre wrote:
> 
> > --- a/arch/arm/mach-at91/Kconfig
> > +++ b/arch/arm/mach-at91/Kconfig
>  
> > +config HAVE_AT91_GENERATED
> > +	bool
> 
> This will always be 'n'.  
> 
> > --- a/drivers/clk/at91/Makefile
> > +++ b/drivers/clk/at91/Makefile
> 
> > +obj-$(CONFIG_HAVE_AT91_GENERATED)	+= clk-generated.o
> 
> And clk-generated.o will never be built.
> 
> I think your options are to use
> 	config HAVE_AT91_GENERATED
> 		def_bool y
> 
> or
> 	config HAVE_AT91_GENERATED
> 		bool "Yadda yadda yadda"
> 
> or add
> 	select HAVE_AT91_GENERATED
> 
> somewhere (possibly even in a second patch). But as it stands the patch
> looks like an elaborate NOP.

I guess it will be selected by platforms embedding such clks. We just
have to wait for those platform to reach mainline ;-). 

Best Regards,

Boris
-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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