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Commit 913a32ed authored by jessicatseng's avatar jessicatseng Committed by jessicatseng(45616)
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Setting jeita fv re-charge voltage for warm temp 

Root cause:
Jeita fv stop charging when battery temp is warm, but without
use HW re-charge.

How to fix:
Add a dynamic re-charge function for warm temp's HW re-charge

Change-Id: I9343ab687113f03d93cecb8baa5e8ac794cf7f7b
parent 40d21c37

drivers/power/supply/qcom/smb5-lib.c

100644 → 100755
+42 −0
Original line number Diff line number Diff line
@@ -1236,6 +1236,38 @@ static int smblib_usb_irq_enable_vote_callback(struct votable *votable, 
	return 0;

}



//<2020/04/28-JessicaTseng, Setting jeita fv re-charge voltage for warm temp

static int smblib_jeita_rechg_voltage_vote_callback(struct votable *votable, void *data,

			int voltage, const char *client)

{

	struct smb_charger *chg = data;

	int rc = 0;

	u32 temp = VBAT_TO_VRAW_ADC((voltage/1000));



	temp = ((temp & 0xFF00) >> 8) | ((temp & 0xFF) << 8);

	rc = smblib_batch_write(chg,

		CHGR_ADC_RECHARGE_THRESHOLD_MSB_REG, (u8 *)&temp, 2);

	if (rc < 0) {

		dev_err(chg->dev, "Couldn't configure ADC_RECHARGE_THRESHOLD REG rc=%d\n",

			rc);

		return rc;

	}

	/* Program the sample count for VBAT based recharge to 3 */

	rc = smblib_masked_write(chg, CHGR_NO_SAMPLE_TERM_RCHG_CFG_REG,

				NO_OF_SAMPLE_FOR_RCHG,

				2 << NO_OF_SAMPLE_FOR_RCHG_SHIFT);

	if (rc < 0) {

		dev_err(chg->dev, "Couldn't configure CHGR_NO_SAMPLE_FOR_TERM_RCHG_CFG rc=%d\n",

			rc);

		return rc;

	}



	dev_err(chg->dev, "jeita_rechg_voltage =%d\n", voltage);



	return rc;

}

//>2020/04/28-JessicaTseng



/*******************

 * VCONN REGULATOR *

 * *****************/
@@ -4428,6 +4460,16 @@ static int smblib_create_votables(struct smb_charger *chg) 
		return rc;

	}



//<2020/04/28-JessicaTseng, Setting jeita fv re-charge voltage for warm temp

	chg->rechg_vol_votable = create_votable("RECHG_VOL", VOTE_MIN,

					smblib_jeita_rechg_voltage_vote_callback,

					chg);

	if (IS_ERR(chg->rechg_vol_votable)) {

		rc = PTR_ERR(chg->rechg_vol_votable);

		return rc;

	}

//>2020/04/28-JessicaTseng



	return rc;

}

drivers/power/supply/qcom/smb5-lib.h

100644 → 100755
+3 −0
Original line number Diff line number Diff line
@@ -341,6 +341,9 @@ struct smb_charger { 
	struct votable		*chg_disable_votable;

	struct votable		*pl_enable_votable_indirect;

	struct votable		*usb_irq_enable_votable;

//<2020/04/28-JessicaTseng, Setting jeita fv re-charge voltage for warm temp

	struct votable		*rechg_vol_votable;

//>2020/04/28-JessicaTseng



	/* work */

	struct work_struct	bms_update_work;

drivers/power/supply/qcom/step-chg-jeita.c

100644 → 100755
+16 −0
Original line number Diff line number Diff line
@@ -80,6 +80,9 @@ struct step_chg_info { 
	struct votable		*fcc_votable;

	struct votable		*fv_votable;

	struct votable		*usb_icl_votable;

//<2020/04/28-JessicaTseng, Setting jeita fv re-charge voltage for warm temp

	struct votable		*rechg_vol_votable;

//>2020/04/28-JessicaTseng

	struct wakeup_source	*step_chg_ws;

	struct power_supply	*batt_psy;

	struct power_supply	*bms_psy;
@@ -500,6 +503,10 @@ static int handle_step_chg_config(struct step_chg_info *chip) 
}



#define JEITA_SUSPEND_HYST_UV		50000

//<2020/04/28-JessicaTseng, Setting jeita fv re-charge voltage for warm temp

#define JEITA_RECHG_HYST_UV		200000//100000

//>2020/04/28-JessicaTseng



static int handle_jeita(struct step_chg_info *chip)

{

	union power_supply_propval pval = {0, };
@@ -561,6 +568,11 @@ static int handle_jeita(struct step_chg_info *chip) 
	if (rc < 0)

		fv_uv = 0;



//<2020/04/28-JessicaTseng, Setting jeita fv re-charge voltage for warm temp

	if (!chip->rechg_vol_votable)

		chip->rechg_vol_votable = find_votable("RECHG_VOL");

//>2020/04/28-JessicaTseng



	chip->fv_votable = find_votable("FV");

	if (!chip->fv_votable)

		goto update_time;
@@ -597,6 +609,10 @@ static int handle_jeita(struct step_chg_info *chip) 


set_jeita_fv:

	vote(chip->fv_votable, JEITA_VOTER, fv_uv ? true : false, fv_uv);

//<2020/04/28-JessicaTseng, Setting jeita fv re-charge voltage for warm temp

	vote(chip->rechg_vol_votable,

			JEITA_VOTER, true, (fv_uv -JEITA_RECHG_HYST_UV));

//>2020/04/28-JessicaTseng



update_time:

	chip->jeita_last_update_time = ktime_get();