linux-kernel - Re: [PATCH 03/33] clk: at91: main: warn when the main crystal frequency is not set

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Date:	Wed, 02 Jul 2014 09:38:42 -0700
From:	Mike Turquette <mturquette@...aro.org>
To:	Boris BREZILLON <boris.brezillon@...e-electrons.com>,
	"Alexandre Belloni" <alexandre.belloni@...e-electrons.com>
Cc:	"Nicolas Ferre" <nicolas.ferre@...el.com>,
	"Jean-Christophe Plagniol-Villard" <plagnioj@...osoft.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/33] clk: at91: main: warn when the main crystal frequency is
 not set

Quoting Boris BREZILLON (2014-07-02 01:18:11)
> On Tue,  1 Jul 2014 16:12:12 +0200
> Alexandre Belloni <alexandre.belloni@...e-electrons.com> wrote:
> 
> > When the main crystal frequency is not set, the main clock is
> > approximated using the MAINF value in the CKGR_MCFR register. Warn
> > the user in that case.
> > 
> > Signed-off-by: Alexandre Belloni
> > <alexandre.belloni@...e-electrons.com> ---
> 
> Acked-by: Boris BREZILLON <boris.brezillon@...rkiz.com>
> 
> Mike, do you want me to take this patch and send you a pull request, or
> should I let you take this one directly ?

I've picked it up since it is just the one patch.

Regards,
Mike

> 
> Best Regards,
> 
> Boris
> 
> >  drivers/clk/at91/clk-main.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c
> > index 733306131b99..59fa3cc96c9e 100644
> > --- a/drivers/clk/at91/clk-main.c
> > +++ b/drivers/clk/at91/clk-main.c
> > @@ -388,6 +388,7 @@ static unsigned long clk_main_recalc_rate(struct
> > at91_pmc *pmc, if (parent_rate)
> >               return parent_rate;
> >  
> > +     pr_warn("Main crystal frequency not set, using approximate
> > value\n"); tmp = pmc_read(pmc, AT91_CKGR_MCFR);
> >       if (!(tmp & AT91_PMC_MAINRDY))
> >               return 0;
> 
> 
> 
> -- 
> Boris Brezillon, Free Electrons
> Embedded Linux and Kernel engineering
> http://free-electrons.com
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