linux-kernel - Re: [PATCH 3/4] rtc: s3c: use unified functions for enable/disable of clk

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Date:	Wed, 12 Aug 2015 19:26:52 +0900
From:	Joonyoung Shim <jy0922.shim@...sung.com>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	rtc-linux@...glegroups.com
Cc:	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	a.zummo@...ertech.it, alexandre.belloni@...e-electrons.com,
	cw00.choi@...sung.com
Subject: Re: [PATCH 3/4] rtc: s3c: use unified functions for enable/disable of
 clk

On 08/12/2015 09:10 AM, Krzysztof Kozlowski wrote:
> On 11.08.2015 20:28, Joonyoung Shim wrote:
>> The driver uses clk_prepare_enable()/clk_disable_unprepare() only in
>> probe only, elsewhere, use the unified functions for enable/disable of
>> clk, e.g. s3c_rtc_enable_clk() / s3c_rtc_disable_clk(), so it's better
>> to use them for consistency of code.
>>
>> Signed-off-by: Joonyoung Shim <jy0922.shim@...sung.com>
>> ---
>>  drivers/rtc/rtc-s3c.c | 14 +++++++++-----
>>  1 file changed, 9 insertions(+), 5 deletions(-)
> 
> First of all - the code is larger (9 insertions, 5 deletion) so I have
> doubts if this is better.
> 
> Second - this is not equivalent change. The s3c_rtc_enable_clk/disable
> calls grab spin lock which is not necessary in probe.
> 

I made this patch because of patch 4/4, but patch 4/4 should be removed
dependency from previous patches, so i will drop this patch.

Thanks.

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