linux-kernel - Re: [PATCH 01/10] power: charger-manager: Use thermal subsystem interface only to get temperature.

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Message-id: <5452F32F.8010103@samsung.com>
Date:	Fri, 31 Oct 2014 11:25:51 +0900
From:	jonghwa3.lee@...sung.com
To:	Krzysztof Kozłowski <k.kozlowski@...sung.com>
Cc:	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	sre@...nel.org, dbaryshkov@...il.com, dwmw2@...radead.org,
	anton@...msg.org, pavel@....cz, myungjoo.ham@...sung.com,
	cw00.choi@...sung.com
Subject: Re: [PATCH 01/10] power: charger-manager: Use thermal subsystem
 interface only to get temperature.

Hi,
On 2014년 10월 30일 22:11, Krzysztof Kozłowski wrote:

> On 30.10.2014 13:43, Jonghwa Lee wrote:
>> It drops the way of using power_supply interface to reference battery's
>> temperature. Then it tries to use thermal subsystem's only. This makes driver
>> more simple and also can remove ifdeferies.
>>
>> Signed-off-by: Jonghwa Lee <jonghwa3.lee@...sung.com>
>> ---
>>  drivers/power/Kconfig                 |    1 +
>>  drivers/power/charger-manager.c       |  113 ++++++++-------------------------
>>  include/linux/power/charger-manager.h |    3 +-
>>  3 files changed, 28 insertions(+), 89 deletions(-)
>>
>> diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
>> index 8ff2511..115d153 100644
>> --- a/drivers/power/Kconfig
>> +++ b/drivers/power/Kconfig
>> @@ -317,6 +317,7 @@ config CHARGER_MANAGER
>>  	bool "Battery charger manager for multiple chargers"
>>  	depends on REGULATOR
>>  	select EXTCON
>> +	select THERMAL
> 
> I think both of "select" here could be dangerous. Select should rather
> be used for non-visible errors. Just use "depends on".
> 
>>  }
>> @@ -623,7 +594,7 @@ static int cm_check_thermal_status(struct charger_manager *cm)
>>  		 * occur hazadous result. We have to handle it
>>  		 * depending on battery type.
>>  		 */
>> -		dev_err(cm->dev, "Failed to get battery temperature\n");
>> +		dev_dbg(cm->dev, "Failed to get battery temperature\n");
> 
> A valuable change but not strictly related to the commit. Additionally
> that is a user-visible change. Could you split it to separate patch?
> 
> Best regards,
> Krzysztof
> 
> 


All your comments are acceptable. I'll fix them all.
Thanks for your comments.

Thanks,
Jonghwa
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