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From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Alim Akhtar <alim.akhtar@samsung.com>,
	rtc-linux@googlegroups.com, linux-kernel@vger.kernel.org
Cc: alexandre.belloni@free-electrons.com, javier@osg.samsung.com,
	pankaj.dubey@samsung.com
Subject: [rtc-linux] Re: [RFC PATCH 1/2] rtc: s3c: Remove unnecessary call to disable already disabled clock
Date: Tue, 05 Jul 2016 09:18:00 +0200	[thread overview]
Message-ID: <577B5F28.1010905@samsung.com> (raw)
In-Reply-To: <1467630195-6929-1-git-send-email-alim.akhtar@samsung.com>

On 07/04/2016 01:03 PM, Alim Akhtar wrote:
> At the end of s3c_rtc_probe(), s3c_rtc_disable_clk() being called with rtc
> clock already disabled, which looks extra and unnecessary call.
> Lets clean it up.

Does not look right. Till that place, the clocks are enabled. Then
s3c_rtc_setaie() is called which expects that clocks are disabled...
otherwise counters get mixed.

So overall this looks like wrong approach unless I am missing something?

Best regards,
Krzysztof

> 
> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
> ---
>  drivers/rtc/rtc-s3c.c |    2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
> index d01ad7e..b083840 100644
> --- a/drivers/rtc/rtc-s3c.c
> +++ b/drivers/rtc/rtc-s3c.c
> @@ -577,8 +577,6 @@ static int s3c_rtc_probe(struct platform_device *pdev)
>  
>  	s3c_rtc_setfreq(info, 1);
>  
> -	s3c_rtc_disable_clk(info);
> -
>  	return 0;
>  
>   err_nortc:

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WARNING: multiple messages have this Message-ID (diff)
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Alim Akhtar <alim.akhtar@samsung.com>,
	rtc-linux@googlegroups.com, linux-kernel@vger.kernel.org
Cc: alexandre.belloni@free-electrons.com, javier@osg.samsung.com,
	pankaj.dubey@samsung.com
Subject: Re: [RFC PATCH 1/2] rtc: s3c: Remove unnecessary call to disable already disabled clock
Date: Tue, 05 Jul 2016 09:18:00 +0200	[thread overview]
Message-ID: <577B5F28.1010905@samsung.com> (raw)
In-Reply-To: <1467630195-6929-1-git-send-email-alim.akhtar@samsung.com>

On 07/04/2016 01:03 PM, Alim Akhtar wrote:
> At the end of s3c_rtc_probe(), s3c_rtc_disable_clk() being called with rtc
> clock already disabled, which looks extra and unnecessary call.
> Lets clean it up.

Does not look right. Till that place, the clocks are enabled. Then
s3c_rtc_setaie() is called which expects that clocks are disabled...
otherwise counters get mixed.

So overall this looks like wrong approach unless I am missing something?

Best regards,
Krzysztof

> 
> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
> ---
>  drivers/rtc/rtc-s3c.c |    2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
> index d01ad7e..b083840 100644
> --- a/drivers/rtc/rtc-s3c.c
> +++ b/drivers/rtc/rtc-s3c.c
> @@ -577,8 +577,6 @@ static int s3c_rtc_probe(struct platform_device *pdev)
>  
>  	s3c_rtc_setfreq(info, 1);
>  
> -	s3c_rtc_disable_clk(info);
> -
>  	return 0;
>  
>   err_nortc:

  parent reply	other threads:[~2016-07-05  7:18 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-04 11:03 [rtc-linux] [RFC PATCH 1/2] rtc: s3c: Remove unnecessary call to disable already disabled clock Alim Akhtar
2016-07-04 11:03 ` Alim Akhtar
2016-07-04 11:03 ` [rtc-linux] [RFC PATCH 2/2] rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq() Alim Akhtar
2016-07-04 11:03   ` Alim Akhtar
2016-07-05  8:16   ` [rtc-linux] " Krzysztof Kozlowski
2016-07-05  8:16     ` Krzysztof Kozlowski
2016-07-05  8:52     ` [rtc-linux] " Alim Akhtar
2016-07-05  8:52       ` Alim Akhtar
2016-07-05  8:56       ` [rtc-linux] " Krzysztof Kozlowski
2016-07-05  8:56         ` Krzysztof Kozlowski
2016-07-05  9:43         ` [rtc-linux] " pankaj.dubey
2016-07-05  9:43           ` pankaj.dubey
2016-07-05  9:44       ` [rtc-linux] " pankaj.dubey
2016-07-05  9:44         ` pankaj.dubey
2016-07-05  7:18 ` Krzysztof Kozlowski [this message]
2016-07-05  7:18   ` [RFC PATCH 1/2] rtc: s3c: Remove unnecessary call to disable already disabled clock Krzysztof Kozlowski
2016-07-05  8:46   ` [rtc-linux] " Alim Akhtar
2016-07-05  8:46     ` Alim Akhtar
2016-07-05  8:50     ` [rtc-linux] " Krzysztof Kozlowski
2016-07-05  8:50       ` Krzysztof Kozlowski

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