linux-kernel - Re: [PATCH 2/3] power: core: Add variables related temperature to power_supply

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Date:	Tue, 11 Nov 2014 09:30:24 +0900
From:	jonghwa3.lee@...sung.com
To:	"Tc, Jenny" <jenny.tc@...el.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"sre@...nel.org" <sre@...nel.org>,
	"dbaryshkov@...il.com" <dbaryshkov@...il.com>,
	"dwmw2@...radead.org" <dwmw2@...radead.org>,
	"anton@...msg.org" <anton@...msg.org>,
	"pavel@....cz" <pavel@....cz>
Subject: Re: [PATCH 2/3] power: core: Add variables related temperature to
 power_supply_info.

On 2014년 11월 10일 20:16, Tc, Jenny wrote:

>> @@ -241,6 +241,8 @@ struct power_supply_info {
>>  	int charge_empty_design;
>>  	int energy_full_design;
>>  	int energy_empty_design;
>> +	int temperature_max;
>> +	int temperature_min;
>>  	int use_for_apm;
>>  };
> 
> 
> The CC,CV and restart threshold would vary based on the battery temperature
> So I would suggest to have temperature zone table as part  of battery info
> along with other attributes.
> 
> int iterm; //charge termination current (used to stop charging)
> int temp_zone_count; // number of temperature zone tables present
> struct batt_temp_mon_table temp_mon_tbl[MAX_TEMP_MON_TABLE]; //temperature zone table array
> 
> struct  batt_temp_mon_table {
> 	 short int temp_max;
> 	 short int cc;
> 	 short int cv;
> 	 short int vbat_vchk_drop_uv;
> 	 short int temp_min;
> };
> 


IMO, throttling cc/cv according the temperature can be done via thermal fw
interface. However voltage drop and charging termination current can be added here.


Jonghwa

> -Jenny
> 
> 


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