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ab8500-fg: Add power cut feature for ab8505 and ab8540

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Add support for a power cut feature which allows user to
configure when ab8505 and ab8540 based platforms should shut
down system due to low battery.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Lee Jones
2012-05-31 16:16:36 +02:00
parent 330b7ebfa5
commit 93ff722e88
5 changed files with 543 additions and 0 deletions
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18
include/linux/mfd/abx500/ab8500-bm.h
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@@ -235,6 +235,14 @@
/* Battery type */
#define BATTERY_UNKNOWN 00
/* Registers for pcut feature in ab8505 and ab9540 */
#define AB8505_RTC_PCUT_CTL_STATUS_REG 0x12
#define AB8505_RTC_PCUT_TIME_REG 0x13
#define AB8505_RTC_PCUT_MAX_TIME_REG 0x14
#define AB8505_RTC_PCUT_FLAG_TIME_REG 0x15
#define AB8505_RTC_PCUT_RESTART_REG 0x16
#define AB8505_RTC_PCUT_DEBOUNCE_REG 0x17
/**
* struct res_to_temp - defines one point in a temp to res curve. To
* be used in battery packs that combines the identification resistor with a
@@ -283,6 +291,11 @@ struct ab8500_fg;
* points.
* @maint_thres This is the threshold where we stop reporting
* battery full while in maintenance, in per cent
* @pcut_enable: Enable power cut feature in ab8505
* @pcut_max_time: Max time threshold
* @pcut_flag_time: Flagtime threshold
* @pcut_max_restart: Max number of restarts
* @pcut_debunce_time: Sets battery debounce time
*/
struct ab8500_fg_parameters {
int recovery_sleep_timer;
@@ -299,6 +312,11 @@ struct ab8500_fg_parameters {
int battok_raising_th_sel1;
int user_cap_limit;
int maint_thres;
bool pcut_enable;
u8 pcut_max_time;
u8 pcut_flag_time;
u8 pcut_max_restart;
u8 pcut_debunce_time;
};
/**