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Commit 05977322 authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy
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power: qpnp-smbcharger: Add support to configure charge inhibit 



Currently we've charge inhibit feature enabled by default. Instead
of enabling it by default, enable it only based on the device tree
configuration.

CRs-Fixed: 756355
Change-Id: Ie8feac36a388897e714ea6bd4f0b2c3644594ad1
Signed-off-by: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
parent 15d5ea13

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

+3 −0
Original line number Diff line number Diff line
@@ -159,6 +159,9 @@ Optional Properties: 
				required in order to initiate a new charging

				cycle. Supported values are: 50, 100, 200 and

				300mV.

- qcom,chg-inhibit-en		Boolean that indicates whether the charge inhibit

				feature needs to be enabled. If this is not set,

				charge inhibit feature is disabled by default.

- qcom,chg-inhibit-fg		Indicates if the recharge threshold source has

				to be Fuel gauge ADC. If this is not set, it

				will be analog sensor by default.

drivers/power/qpnp-smbcharger.c

+8 −3
Original line number Diff line number Diff line
@@ -107,6 +107,7 @@ struct smbchg_chip { 
	bool				low_icl_wa_on;

	bool				battery_unknown;

	bool				charge_unknown_battery;

	bool				chg_inhibit_en;

	bool				chg_inhibit_source_fg;

	u8				original_usbin_allowance;

	struct parallel_usb_cfg		parallel;
@@ -3621,13 +3622,15 @@ static int smbchg_hw_init(struct smbchg_chip *chip) 


	/*

	 * set chg en by cmd register, set chg en by writing bit 1,

	 * enable auto pre to fast, enable current termination, enable

	 * auto recharge, enable chg inhibition

	 * enable auto pre to fast, enable auto recharge by default.

	 * enable current termination and charge inhibition based on

	 * the device tree configuration.

	 */

	rc = smbchg_sec_masked_write(chip, chip->chgr_base + CHGR_CFG2,

			CHG_EN_SRC_BIT | CHG_EN_COMMAND_BIT | P2F_CHG_TRAN

			| I_TERM_BIT | AUTO_RECHG_BIT | CHARGER_INHIBIT_BIT,

			CHARGER_INHIBIT_BIT | CHG_EN_COMMAND_BIT

			CHG_EN_COMMAND_BIT

			| (chip->chg_inhibit_en ? CHARGER_INHIBIT_BIT : 0)

			| (chip->iterm_disabled ? I_TERM_BIT : 0));

	if (rc < 0) {

		dev_err(chip->dev, "Couldn't set chgr_cfg2 rc=%d\n", rc);
@@ -4049,6 +4052,8 @@ static int smb_parse_dt(struct smbchg_chip *chip) 
						"qcom,charging-disabled"));

	chip->charge_unknown_battery = of_property_read_bool(node,

						"qcom,charge-unknown-battery");

	chip->chg_inhibit_en = of_property_read_bool(node,

					"qcom,chg-inhibit-en");

	chip->chg_inhibit_source_fg = of_property_read_bool(node,

						"qcom,chg-inhibit-fg");