Piteball/android_kernel_samsung_msm8976
1
1
Fork 0
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git synced 2024-09-21 03:43:03 +00:00
Code Issues Projects Releases Wiki Activity

Merge "power: qpnp-fg: configure irq_volt_empty in the fuel gauge"

Browse source
This commit is contained in:
Linux Build Service Account 2014-12-02 17:40:16 -08:00 committed by Gerrit - the friendly Code Review server
parent 3b1a76ba61 eed97842d9
commit 6b1f6adb45
2 changed files with 28 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
Documentation/devicetree/bindings/power/qpnp-fg.txt
View file

@ -57,6 +57,14 @@ Parent node optional properties:
property is in milliamps and should be
positive (e.g. 100mA to terminate at
-100mA).
- qcom,irq-volt-empty-mv: The voltage threshold that the empty
soc interrupt will be triggered. When
the empty soc interrupt fires, battery
soc will be pulled to 0 and the
userspace will be notified via the
power supply framework. The userspace
will read 0% soc and immediately
shutdown.
qcom,fg-soc node required properties:
- reg : offset and length of the PMIC peripheral register map.

20
drivers/power/qpnp-fg.c
View file

@ -119,6 +119,7 @@ enum fg_mem_setting_index {
FG_MEM_BCL_LM_THRESHOLD,
FG_MEM_BCL_MH_THRESHOLD,
FG_MEM_TERM_CURRENT,
FG_MEM_IRQ_VOLT_EMPTY,
FG_MEM_SETTING_MAX,
};
@ -151,6 +152,7 @@ static struct fg_mem_setting settings[FG_MEM_SETTING_MAX] = {
SETTING(BCL_LM_THRESHOLD, 0x47C, 2, 50),
SETTING(BCL_MH_THRESHOLD, 0x47C, 3, 752),
SETTING(TERM_CURRENT, 0x40C, 2, 250),
SETTING(IRQ_VOLT_EMPTY, 0x458, 3, 3350),
};
#define DATA(_idx, _address, _offset, _length, _value) \
@ -1950,6 +1952,22 @@ static void update_bcl_thresholds(struct fg_chip *chip)
data[lm_offset], data[mh_offset]);
}
#define VOLT_UV_TO_VOLTCMP8(volt_uv) \
((volt_uv - 2500000) / 9766)
static int update_irq_volt_empty(struct fg_chip *chip)
{
u8 data;
int volt_mv = settings[FG_MEM_IRQ_VOLT_EMPTY].value;
data = (u8)VOLT_UV_TO_VOLTCMP8(volt_mv * 1000);
if (fg_debug_mask & FG_STATUS)
pr_info("voltage = %d, converted_raw = %04x\n", volt_mv, data);
return fg_mem_write(chip, &data,
settings[FG_MEM_IRQ_VOLT_EMPTY].address, 1,
settings[FG_MEM_IRQ_VOLT_EMPTY].offset, 0);
}
#define CURRENT_UA_TO_ADC_RAW(cur_ua) \
(cur_ua * LSB_16B_DENMTR / LSB_16B_NUMRTR)
static int update_iterm(struct fg_chip *chip)
@ -1990,6 +2008,7 @@ static int fg_of_init(struct fg_chip *chip)
chip->use_thermal_coefficients = true;
}
OF_READ_SETTING(FG_MEM_RESUME_SOC, "resume-soc", rc, 1);
OF_READ_SETTING(FG_MEM_IRQ_VOLT_EMPTY, "irq-volt-empty-mv", rc, 1);
/* Get the use-otp-profile property */
chip->use_otp_profile = of_property_read_bool(
@ -2611,6 +2630,7 @@ static int fg_hw_init(struct fg_chip *chip)
int rc = 0;
update_iterm(chip);
update_irq_volt_empty(chip);
update_bcl_thresholds(chip);
rc = fg_set_auto_recharge(chip);
if (rc) {