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Commit d3e8a907 authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy Committed by Ashay Jaiswal
Browse files

power: qpnp-fg-gen3: add support for configuring cutoff current 



Add support to configure cutoff current that will be used for
cutoff SOC estimate.

CRs-Fixed: 2160773
Change-Id: I26730f35659a227717a33682683746f13f1175eb
Signed-off-by: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
parent 72475844

Documentation/devicetree/bindings/power/qpnp-fg-gen3.txt

+7 −0
Original line number Diff line number Diff line
@@ -104,6 +104,13 @@ First Level Node - FG Gen3 device 
		    this property is not specified, then the default value used

		    will be 75mA.



- qcom,fg-cutoff-current

	Usage:      optional

	Value type: <u32>

	Definition: Minimum Battery current (in mA) used for cutoff SOC

		    estimate. If this property is not specified, then a default

		    value of 500 mA will be applied.



- qcom,fg-delta-soc-thr

	Usage:      optional

	Value type: <u32>

drivers/power/fg-core.h

+2 −0
Original line number Diff line number Diff line
@@ -173,6 +173,7 @@ enum fg_sram_param_id { 
	FG_SRAM_SYS_TERM_CURR,

	FG_SRAM_CHG_TERM_CURR,

	FG_SRAM_CHG_TERM_BASE_CURR,

	FG_SRAM_CUTOFF_CURR,

	FG_SRAM_DELTA_MSOC_THR,

	FG_SRAM_DELTA_BSOC_THR,

	FG_SRAM_RECHARGE_SOC_THR,
@@ -248,6 +249,7 @@ struct fg_dt_props { 
	int	chg_term_curr_ma;

	int	chg_term_base_curr_ma;

	int	sys_term_curr_ma;

	int	cutoff_curr_ma;

	int	delta_soc_thr;

	int	recharge_soc_thr;

	int	recharge_volt_thr_mv;

drivers/power/qpnp-fg-gen3.c

+23 −0
Original line number Diff line number Diff line
@@ -36,6 +36,8 @@ 
#define ESR_PULSE_THRESH_OFFSET		3

#define SLOPE_LIMIT_WORD		3

#define SLOPE_LIMIT_OFFSET		0

#define CUTOFF_CURR_WORD		4

#define CUTOFF_CURR_OFFSET		0

#define CUTOFF_VOLT_WORD		5

#define CUTOFF_VOLT_OFFSET		0

#define SYS_TERM_CURR_WORD		6
@@ -209,6 +211,8 @@ static struct fg_sram_param pmi8998_v1_sram_params[] = { 
		1000000, 122070, 0, fg_encode_current, NULL),

	PARAM(CHG_TERM_CURR, CHG_TERM_CURR_WORD, CHG_TERM_CURR_OFFSET, 1,

		100000, 390625, 0, fg_encode_current, NULL),

	PARAM(CUTOFF_CURR, CUTOFF_CURR_WORD, CUTOFF_CURR_OFFSET, 3,

		1000000, 122070, 0, fg_encode_current, NULL),

	PARAM(DELTA_MSOC_THR, DELTA_MSOC_THR_WORD, DELTA_MSOC_THR_OFFSET, 1,

		2048, 100, 0, fg_encode_default, NULL),

	PARAM(DELTA_BSOC_THR, DELTA_BSOC_THR_WORD, DELTA_BSOC_THR_OFFSET, 1,
@@ -285,6 +289,8 @@ static struct fg_sram_param pmi8998_v2_sram_params[] = { 
	PARAM(CHG_TERM_BASE_CURR, CHG_TERM_CURR_v2_WORD,

		CHG_TERM_BASE_CURR_v2_OFFSET, 1, 1024, 1000, 0,

		fg_encode_current, NULL),

	PARAM(CUTOFF_CURR, CUTOFF_CURR_WORD, CUTOFF_CURR_OFFSET, 3,

		1000000, 122070, 0, fg_encode_current, NULL),

	PARAM(DELTA_MSOC_THR, DELTA_MSOC_THR_v2_WORD, DELTA_MSOC_THR_v2_OFFSET,

		1, 2048, 100, 0, fg_encode_default, NULL),

	PARAM(DELTA_BSOC_THR, DELTA_BSOC_THR_v2_WORD, DELTA_BSOC_THR_v2_OFFSET,
@@ -3494,6 +3500,16 @@ static int fg_hw_init(struct fg_chip *chip) 
		return rc;

	}



	fg_encode(chip->sp, FG_SRAM_CUTOFF_CURR, chip->dt.cutoff_curr_ma,

		buf);

	rc = fg_sram_write(chip, chip->sp[FG_SRAM_CUTOFF_CURR].addr_word,

			chip->sp[FG_SRAM_CUTOFF_CURR].addr_byte, buf,

			chip->sp[FG_SRAM_CUTOFF_CURR].len, FG_IMA_DEFAULT);

	if (rc < 0) {

		pr_err("Error in writing cutoff_curr, rc=%d\n", rc);

		return rc;

	}



	if (!(chip->wa_flags & PMI8998_V1_REV_WA)) {

		fg_encode(chip->sp, FG_SRAM_CHG_TERM_BASE_CURR,

			chip->dt.chg_term_base_curr_ma, buf);
@@ -4237,6 +4253,7 @@ static int fg_parse_ki_coefficients(struct fg_chip *chip) 
#define DEFAULT_CHG_TERM_CURR_MA	100

#define DEFAULT_CHG_TERM_BASE_CURR_MA	75

#define DEFAULT_SYS_TERM_CURR_MA	-125

#define DEFAULT_CUTOFF_CURR_MA		500

#define DEFAULT_DELTA_SOC_THR		1

#define DEFAULT_RECHARGE_SOC_THR	95

#define DEFAULT_BATT_TEMP_COLD		0
@@ -4398,6 +4415,12 @@ static int fg_parse_dt(struct fg_chip *chip) 
	else

		chip->dt.chg_term_base_curr_ma = temp;



	rc = of_property_read_u32(node, "qcom,fg-cutoff-current", &temp);

	if (rc < 0)

		chip->dt.cutoff_curr_ma = DEFAULT_CUTOFF_CURR_MA;

	else

		chip->dt.cutoff_curr_ma = temp;



	rc = of_property_read_u32(node, "qcom,fg-delta-soc-thr", &temp);

	if (rc < 0)

		chip->dt.delta_soc_thr = DEFAULT_DELTA_SOC_THR;