linux-kernel - Re: [PATCH v4 05/14] clk: Add generic driver for Maxim PMIC clocks

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Date:	Thu, 26 Jun 2014 14:31:36 +0200
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Yadwinder Singh Brar <yadi.brar01@...il.com>
CC:	Lee Jones <lee.jones@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Mark Brown <broonie@...nel.org>,
	Mike Turquette <mturquette@...aro.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Doug Anderson <dianders@...omium.org>,
	Olof Johansson <olof@...om.net>,
	Sjoerd Simons <sjoerd.simons@...labora.co.uk>,
	Daniel Stone <daniels@...labora.com>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	devicetree <devicetree@...r.kernel.org>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 05/14] clk: Add generic driver for Maxim PMIC clocks

Hello Yadwinder,

Thanks a lot for your feedback.

On 06/26/2014 01:51 PM, Yadwinder Singh Brar wrote:
> Hi Javier,
> 
> Sorry for jumping in late, but just one concern mentioned inline.
> 
> [ .. ]
> 
>> +
>> +static unsigned long max_gen_recalc_rate(struct clk_hw *hw,
>> +                                        unsigned long parent_rate)
>> +{
>> +       return 32768;
>> +}
> 
> Isn't more safer(correct), if it check and return 0 when clk is
> disabled(unprepared) ?
> 

Makes sense to me. I'll add a if (__clk_is_enabled(hw->clk)) check in the next
version.

> Regards,
> Yadwinder
> 

Best regards,
Javier
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