linux_dsm_epyc7002/include/linux/power/bq27xxx_battery.h
Liam Breck ccce440956 power: supply: bq27xxx: Add power_supply_battery_info support
Previously there was no way to configure these chips in the event that the
defaults didn't match the battery in question.

For chips with RAM data memory (and also those with flash/NVM data memory
if CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM is defined and the user has not
set module param dt_monitored_battery_updates_nvm=0) we now call
power_supply_get_battery_info(), check its values, and write battery
properties to chip data memory if there is a dm_regs table for the chip.

Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-06-08 17:57:38 +02:00

86 lines
2.3 KiB
C

#ifndef __LINUX_BQ27X00_BATTERY_H__
#define __LINUX_BQ27X00_BATTERY_H__
enum bq27xxx_chip {
BQ27000 = 1, /* bq27000, bq27200 */
BQ27010, /* bq27010, bq27210 */
BQ2750X, /* bq27500 deprecated alias */
BQ2751X, /* bq27510, bq27520 deprecated alias */
BQ27500, /* bq27500/1 */
BQ27510G1, /* bq27510G1 */
BQ27510G2, /* bq27510G2 */
BQ27510G3, /* bq27510G3 */
BQ27520G1, /* bq27520G1 */
BQ27520G2, /* bq27520G2 */
BQ27520G3, /* bq27520G3 */
BQ27520G4, /* bq27520G4 */
BQ27530, /* bq27530, bq27531 */
BQ27541, /* bq27541, bq27542, bq27546, bq27742 */
BQ27545, /* bq27545 */
BQ27421, /* bq27421, bq27425, bq27441, bq27621 */
};
/**
* struct bq27xxx_plaform_data - Platform data for bq27xxx devices
* @name: Name of the battery.
* @chip: Chip class number of this device.
* @read: HDQ read callback.
* This function should provide access to the HDQ bus the battery is
* connected to.
* The first parameter is a pointer to the battery device, the second the
* register to be read. The return value should either be the content of
* the passed register or an error value.
*/
struct bq27xxx_platform_data {
const char *name;
enum bq27xxx_chip chip;
int (*read)(struct device *dev, unsigned int);
};
struct bq27xxx_device_info;
struct bq27xxx_access_methods {
int (*read)(struct bq27xxx_device_info *di, u8 reg, bool single);
int (*write)(struct bq27xxx_device_info *di, u8 reg, int value, bool single);
int (*read_bulk)(struct bq27xxx_device_info *di, u8 reg, u8 *data, int len);
int (*write_bulk)(struct bq27xxx_device_info *di, u8 reg, u8 *data, int len);
};
struct bq27xxx_reg_cache {
int temperature;
int time_to_empty;
int time_to_empty_avg;
int time_to_full;
int charge_full;
int cycle_count;
int capacity;
int energy;
int flags;
int power_avg;
int health;
};
struct bq27xxx_device_info {
struct device *dev;
int id;
enum bq27xxx_chip chip;
bool ram_chip;
const char *name;
struct bq27xxx_dm_reg *dm_regs;
u32 unseal_key;
struct bq27xxx_access_methods bus;
struct bq27xxx_reg_cache cache;
int charge_design_full;
unsigned long last_update;
struct delayed_work work;
struct power_supply *bat;
struct list_head list;
struct mutex lock;
u8 *regs;
};
void bq27xxx_battery_update(struct bq27xxx_device_info *di);
int bq27xxx_battery_setup(struct bq27xxx_device_info *di);
void bq27xxx_battery_teardown(struct bq27xxx_device_info *di);
#endif