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Commit 7472d046 authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy
Browse files

power: qpnp-fg-gen4: Reset ESR_{DIS}CHG_DELTA during SOH profile loading 



When the profile is loaded as a result of SOH change, reset
ESR_CHG_DELTA and ESR_DISCHG_DELTA values configured during ESR
fast calibration. This is needed to improve SOH calculations.

Change-Id: I405607db04da595f60d10e15d8bb5a8736ea5d80
Signed-off-by: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
parent 745d6792

drivers/power/supply/qcom/qpnp-fg-gen4.c

+30 −1
Original line number Diff line number Diff line
@@ -281,6 +281,7 @@ struct fg_gen4_chip { 
	struct work_struct	pl_current_en_work;

	struct completion	mem_attn;

	struct mutex		soc_scale_lock;

	struct mutex		esr_calib_lock;

	ktime_t			last_restart_time;

	char			batt_profile[PROFILE_LEN];

	enum slope_limit_status	slope_limit_sts;
@@ -2360,7 +2361,31 @@ static void fg_gen4_post_profile_load(struct fg_gen4_chip *chip) 
{

	struct fg_dev *fg = &chip->fg;

	int rc, act_cap_mah;

	u8 buf[16];

	u8 buf[16] = {0};



	if (chip->dt.multi_profile_load &&

		chip->batt_age_level != chip->last_batt_age_level) {



		/* Keep ESR fast calib config disabled */

		fg_gen4_esr_fast_calib_config(chip, false);

		chip->esr_fast_calib = false;



		mutex_lock(&chip->esr_calib_lock);



		rc = fg_sram_write(fg, ESR_DELTA_DISCHG_WORD,

				ESR_DELTA_DISCHG_OFFSET, buf, 2,

				FG_IMA_DEFAULT);

		if (rc < 0)

			pr_err("Error in writing ESR_DELTA_DISCHG, rc=%d\n",

				rc);



		rc = fg_sram_write(fg, ESR_DELTA_CHG_WORD, ESR_DELTA_CHG_OFFSET,

				buf, 2, FG_IMA_DEFAULT);

		if (rc < 0)

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



		mutex_unlock(&chip->esr_calib_lock);

	}



	/* If SDAM cookie is not set, read back from SRAM and load it in SDAM */

	if (chip->fg_nvmem && !is_sdam_cookie_set(chip)) {
@@ -3858,6 +3883,8 @@ static void esr_calib_work(struct work_struct *work) 
	s16 esr_raw, esr_char_raw, esr_delta, esr_meas_diff, esr_filtered;

	u8 buf[2];



	mutex_lock(&chip->esr_calib_lock);



	if (chip->delta_esr_count > chip->dt.delta_esr_disable_count ||

		chip->esr_fast_calib_done) {

		fg_dbg(fg, FG_STATUS, "delta_esr_count: %d esr_fast_calib_done:%d\n",
@@ -3954,6 +3981,7 @@ static void esr_calib_work(struct work_struct *work) 
	chip->delta_esr_count++;

	fg_dbg(fg, FG_STATUS, "Wrote ESR delta [0x%x 0x%x]\n", buf[0], buf[1]);

out:

	mutex_unlock(&chip->esr_calib_lock);

	vote(fg->awake_votable, ESR_CALIB, false, 0);

}
@@ -6101,6 +6129,7 @@ static int fg_gen4_probe(struct platform_device *pdev) 
	mutex_init(&fg->sram_rw_lock);

	mutex_init(&fg->charge_full_lock);

	mutex_init(&chip->soc_scale_lock);

	mutex_init(&chip->esr_calib_lock);

	init_completion(&fg->soc_update);

	init_completion(&fg->soc_ready);

	init_completion(&chip->mem_attn);