linux-kernel - Re: [RFC 6/8] of: add clock providers

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Message-ID: <20111201063447.GH711@S2100-06.ap.freescale.net>
Date:	Thu, 1 Dec 2011 14:34:48 +0800
From:	Shawn Guo <shawn.guo@...escale.com>
To:	Grant Likely <grant.likely@...retlab.ca>
CC:	<devicetree-discuss@...ts.ozlabs.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	Rob Herring <rob.herring@...xeda.com>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [RFC 6/8] of: add clock providers

On Wed, Nov 30, 2011 at 12:38:19PM -0700, Grant Likely wrote:
> On Mon, Nov 21, 2011 at 8:37 AM, Shawn Guo <shawn.guo@...escale.com> wrote:
> > On Tue, Nov 08, 2011 at 06:19:41PM -0700, Grant Likely wrote:
> >> +struct clk *of_clk_get_by_name(struct device_node *np, const char *name)
> >> +{
> >> +     int index = 0;
> >> +
> >> +     if (name)
> >> +             index = of_property_match_string(np, "clock-input-names", name);
> >
> > If it fails to match name, we may want to force 'index' back to 0.
> 
> Actually, if it fails to match, the function should fail.

Hmm, that will require the clock-input-name be same as the second
parameter of clk_get() - con_id, which may have been named to some
string not suitable for clock-input-name.  For those case, we will
probably need to change the drivers to rename the con_id?  Or just
force the clock-input-name to be that improper con_id string?

-- 
Regards,
Shawn

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