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power: Add twl4030_madc battery driver.

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This driver is used and tested on gta04 phone. It's using twl4030_madc
(similar to rx51 existing driver). Driver also implement charging and
discharging calibration data so user can define ranges and level.

Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Lukas Märdian <lukas@goldelico.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
This commit is contained in:
Marek Belisko 2013-08-29 11:41:52 +02:00 • committed by Anton Vorontsov
parent d24fed391d
commit da0a00ebc2
4 changed files with 292 additions and 0 deletions
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39
include/linux/power/twl4030_madc_battery.h Normal file
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/*
* Dumb driver for LiIon batteries using TWL4030 madc.
*
* Copyright 2013 Golden Delicious Computers
* Nikolaus Schaller <hns@goldelico.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef __TWL4030_MADC_BATTERY_H
#define __TWL4030_MADC_BATTERY_H
/*
* Usually we can assume 100% @ 4.15V and 0% @ 3.3V but curves differ for
* charging and discharging!
*/
struct twl4030_madc_bat_calibration {
short voltage; /* in mV - specify -1 for end of list */
short level; /* in percent (0 .. 100%) */
};
struct twl4030_madc_bat_platform_data {
unsigned int capacity; /* total capacity in uAh */
struct twl4030_madc_bat_calibration *charging;
int charging_size;
struct twl4030_madc_bat_calibration *discharging;
int discharging_size;
};
#endif