linux-yocto/include/linux/platform_data/lp8727.h
Kim, Milo 318cb389d0 lp8727_charger: Fix buggy code of NULL pdata
LP8727 platform data is optional, so the driver should work even the
platform data is NULL.

To check the platform data, charging parameter data should be changed to
the pointer type.

Fix NULL point access problem when getting the battery properties. When
the data is NULL, just return as invalid value.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-09-20 17:56:49 -07:00

67 lines
1.4 KiB
C

/*
* LP8727 Micro/Mini USB IC with integrated charger
*
* Copyright (C) 2011 Texas Instruments
* Copyright (C) 2011 National Semiconductor
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _LP8727_H
#define _LP8727_H
enum lp8727_eoc_level {
EOC_5P,
EOC_10P,
EOC_16P,
EOC_20P,
EOC_25P,
EOC_33P,
EOC_50P,
};
enum lp8727_ichg {
ICHG_90mA,
ICHG_100mA,
ICHG_400mA,
ICHG_450mA,
ICHG_500mA,
ICHG_600mA,
ICHG_700mA,
ICHG_800mA,
ICHG_900mA,
ICHG_1000mA,
};
/**
* struct lp8727_chg_param
* @eoc_level : end of charge level setting
* @ichg : charging current
*/
struct lp8727_chg_param {
enum lp8727_eoc_level eoc_level;
enum lp8727_ichg ichg;
};
/**
* struct lp8727_platform_data
* @get_batt_present : check battery status - exists or not
* @get_batt_level : get battery voltage (mV)
* @get_batt_capacity : get battery capacity (%)
* @get_batt_temp : get battery temperature
* @ac : charging parameters for AC type charger
* @usb : charging parameters for USB type charger
*/
struct lp8727_platform_data {
u8 (*get_batt_present)(void);
u16 (*get_batt_level)(void);
u8 (*get_batt_capacity)(void);
u8 (*get_batt_temp)(void);
struct lp8727_chg_param *ac;
struct lp8727_chg_param *usb;
};
#endif