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Commit 846ab831 authored by Xiaozhe Shi's avatar Xiaozhe Shi
Browse files

power: qpnp-smbcharger: support flash icl loop disable workaround 



Support setting the FLASH_TRIGGER power supply property in order to
disable the input current limit regulation loop when flash is strobing
without OTG connected.

Change-Id: I8d8dba8050a3fe066bbea108e4aaafda6045123b
Signed-off-by: default avatarXiaozhe Shi <xiaozhes@codeaurora.org>
parent 1ca0c01f

drivers/power/qpnp-smbcharger.c

+37 −1
Original line number Diff line number Diff line
@@ -186,6 +186,9 @@ struct smbchg_chip { 
	const char			*battery_type;

	bool				very_weak_charger;

	bool				parallel_charger_detected;

	bool				chg_otg_enabled;

	bool				flash_triggered;

	bool				icl_disabled;

	u32				wa_flags;



	/* jeita and temperature */
@@ -284,6 +287,7 @@ enum smbchg_wa { 
	SMBCHG_USB100_WA = BIT(2),

	SMBCHG_BATT_OV_WA = BIT(3),

	SMBCHG_CC_ESR_WA = BIT(4),

	SMBCHG_FLASH_ICL_DISABLE_WA = BIT(5),

};



enum print_reason {
@@ -3200,6 +3204,25 @@ static void smbchg_aicl_deglitch_wa_check(struct smbchg_chip *chip) 
	smbchg_aicl_deglitch_wa_en(chip, chip->vbat_above_headroom);

}



#define MISC_TEST_REG		0xE2

#define BB_LOOP_DISABLE_ICL	BIT(2)

static int smbchg_icl_loop_disable_check(struct smbchg_chip *chip)

{

	bool icl_disabled = !chip->chg_otg_enabled && chip->flash_triggered;

	int rc = 0;



	if ((chip->wa_flags & SMBCHG_FLASH_ICL_DISABLE_WA)

			&& icl_disabled != chip->icl_disabled) {

		rc = smbchg_sec_masked_write(chip,

				chip->misc_base + MISC_TEST_REG,

				BB_LOOP_DISABLE_ICL,

				icl_disabled ? BB_LOOP_DISABLE_ICL : 0);

		chip->icl_disabled = icl_disabled;

	}



	return rc;

}



#define UNKNOWN_BATT_TYPE	"Unknown Battery"

#define LOADING_BATT_TYPE	"Loading Battery Data"

static int smbchg_config_chg_battery_type(struct smbchg_chip *chip)
@@ -3402,6 +3425,8 @@ static int smbchg_otg_regulator_enable(struct regulator_dev *rdev) 
	struct smbchg_chip *chip = rdev_get_drvdata(rdev);



	chip->otg_retries = 0;

	chip->chg_otg_enabled = true;

	smbchg_icl_loop_disable_check(chip);

	smbchg_otg_pulse_skip_disable(chip, REASON_OTG_ENABLED, true);

	/* sleep to make sure the pulse skip is actually disabled */

	msleep(20);
@@ -3424,7 +3449,9 @@ static int smbchg_otg_regulator_disable(struct regulator_dev *rdev) 
			OTG_EN_BIT, 0);

	if (rc < 0)

		dev_err(chip->dev, "Couldn't disable OTG mode rc=%d\n", rc);

	chip->chg_otg_enabled = false;

	smbchg_otg_pulse_skip_disable(chip, REASON_OTG_ENABLED, false);

	smbchg_icl_loop_disable_check(chip);

	pr_smb(PR_STATUS, "Disabling OTG Boost\n");

	return rc;

}
@@ -5178,6 +5205,7 @@ static enum power_supply_property smbchg_battery_properties[] = { 
	POWER_SUPPLY_PROP_INPUT_CURRENT_MAX,

	POWER_SUPPLY_PROP_INPUT_CURRENT_SETTLED,

	POWER_SUPPLY_PROP_FLASH_ACTIVE,

	POWER_SUPPLY_PROP_FLASH_TRIGGER,

	POWER_SUPPLY_PROP_DP_DM,

	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMITED,

	POWER_SUPPLY_PROP_RERUN_AICL,
@@ -5223,6 +5251,10 @@ static int smbchg_battery_set_property(struct power_supply *psy, 
		rc = smbchg_otg_pulse_skip_disable(chip,

				REASON_FLASH_ENABLED, val->intval);

		break;

	case POWER_SUPPLY_PROP_FLASH_TRIGGER:

		chip->flash_triggered = !!val->intval;

		smbchg_icl_loop_disable_check(chip);

		break;

	case POWER_SUPPLY_PROP_FORCE_TLIM:

		rc = smbchg_force_tlim_en(chip, val->intval);

		break;
@@ -5332,6 +5364,9 @@ static int smbchg_battery_get_property(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_FLASH_ACTIVE:

		val->intval = chip->otg_pulse_skip_dis;

		break;

	case POWER_SUPPLY_PROP_FLASH_TRIGGER:

		val->intval = chip->flash_triggered;

		break;

	case POWER_SUPPLY_PROP_DP_DM:

		val->intval = chip->pulse_cnt;

		break;
@@ -7196,7 +7231,8 @@ static int smbchg_check_chg_version(struct smbchg_chip *chip) 
		chip->schg_version = QPNP_SCHG_LITE;

		break;

	case PMI8996:

		chip->wa_flags |= SMBCHG_CC_ESR_WA;

		chip->wa_flags |= SMBCHG_CC_ESR_WA

				| SMBCHG_FLASH_ICL_DISABLE_WA;

		use_pmi8996_tables(chip);

		chip->schg_version = QPNP_SCHG;

		break;