linux-kernel - Re: Question about fixed-clock

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Message-ID: <20130219033931.GA2479@afzal-ThinkPad-R50e>
Date:	Tue, 19 Feb 2013 09:09:31 +0530
From:	Afzal Mohammed <afzal.mohd.ma@...il.com>
To:	Daniel Mack <zonque@...il.com>
Cc:	Mike Turquette <mturquette@...aro.org>,
	Russell King <linux@....linux.org.uk>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: Question about fixed-clock

Hi Daniel,

On Tue, Feb 19, 2013 at 12:55:52AM +0100, Daniel Mack wrote:

> 	ref25: ref25M {
> 		compatible = "fixed-clock";
> 		#clock-cells = <0>;
> 		clock-frequency = <25000000>;
> 	};
> 
> 	clock-generator@0 {
> 				/* ... */
> 				#clock-cells = <1>;
> 				clocks = <&ref25>;
> 	}
> 
> The device driver for clock-generator uses something like the following
> call to get its clock:
> 
> 	clk = of_clk_get(np, 0);
> 
> but the return value is ERR_PTR(-ENOENT) and I also can't find this
> clock in the clk debugfs tree.

Hope invoking of_clk_init before clock generator driver helps

Regards
Afzal
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