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Commit 072e8c0b authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy
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power: qpnp-qnovo5: Support configuring external FET control 



As per the hardware recommendation, external FET should be
controlled through a GPIO upon charger removal. Add support for
this by allowing GPIO to be configured upon charger removal.

Change-Id: Ib171cfb5dfae10a8aa5d67067b9a77740d77eb83
Signed-off-by: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
parent 13d5b920

drivers/power/supply/qcom/qpnp-qnovo5.c

+40 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2019 The Linux Foundation. All rights reserved.

 */



#include <linux/device.h>
@@ -13,6 +13,7 @@ 
#include <linux/of_irq.h>

#include <linux/pmic-voter.h>

#include <linux/delay.h>

#include <linux/pinctrl/consumer.h>



#define QNOVO_PE_CTRL			0x45

#define QNOVO_PTRAIN_EN_BIT		BIT(7)
@@ -108,6 +109,9 @@ struct qnovo { 
	struct class		qnovo_class;

	struct power_supply	*batt_psy;

	struct power_supply	*usb_psy;

	struct pinctrl		*pinctrl;

	struct pinctrl_state	*pinctrl_state1;

	struct pinctrl_state	*pinctrl_state2;

	struct notifier_block	nb;

	struct votable		*disable_votable;

	struct votable		*pt_dis_votable;
@@ -297,6 +301,30 @@ static int qnovo5_parse_dt(struct qnovo *chip) 
		return rc;

	}



	chip->pinctrl = devm_pinctrl_get(chip->dev);

	if (IS_ERR(chip->pinctrl)) {

		pr_err("Couldn't get pinctrl rc=%d\n", PTR_ERR(chip->pinctrl));

		chip->pinctrl = NULL;

	}



	if (chip->pinctrl) {

		chip->pinctrl_state1 = pinctrl_lookup_state(chip->pinctrl,

						"q_state1");

		if (IS_ERR(chip->pinctrl_state1)) {

			rc = PTR_ERR(chip->pinctrl_state1);

			pr_err("Couldn't get pinctrl state1 rc=%d\n", rc);

			return rc;

		}



		chip->pinctrl_state2 = pinctrl_lookup_state(chip->pinctrl,

						"q_state2");

		if (IS_ERR(chip->pinctrl_state2)) {

			rc = PTR_ERR(chip->pinctrl_state2);

			pr_err("Couldn't get pinctrl state2 rc=%d\n", rc);

			return rc;

		}

	}



	return 0;

}
@@ -1113,6 +1141,17 @@ static void status_change_work(struct work_struct *work) 
		cancel_delayed_work_sync(&chip->usb_debounce_work);

		vote(chip->awake_votable, USB_READY_VOTER, false, 0);

		vote(chip->chg_ready_votable, USB_READY_VOTER, false, 0);

		if (chip->pinctrl) {

			rc = pinctrl_select_state(chip->pinctrl,

					chip->pinctrl_state1);

			if (rc < 0)

				pr_err("Couldn't select state 1 rc=%d\n", rc);



			rc = pinctrl_select_state(chip->pinctrl,

					chip->pinctrl_state2);

			if (rc < 0)

				pr_err("Couldn't select state 2 rc=%d\n", rc);

		}

	} else if (!chip->usb_present && usb_present) {

		/* insertion */

		chip->usb_present = 1;