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Commit 6b1f6adb authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "power: qpnp-fg: configure irq_volt_empty in the fuel gauge"

parents 3b1a76ba eed97842

Documentation/devicetree/bindings/power/qpnp-fg.txt

+8 −0
Original line number Diff line number Diff line
@@ -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.

drivers/power/qpnp-fg.c

+20 −0
Original line number Diff line number Diff line
@@ -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) {