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Commit f2508e2e authored by Amir Samuelov's avatar Amir Samuelov
Browse files

soc: spcom: unvote for sp regulators 



Some power regulators are voted by SPSS UEFI driver,
that needs to be unvote by HLOS.

Change-Id: I6d9f24c3937188b316d5912751c48207f3b8ab85
Signed-off-by: default avatarAmir Samuelov <amirs@codeaurora.org>
parent f2a1ad8d

drivers/soc/qcom/spcom.c

+55 −3
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.

 */



/*
@@ -66,6 +66,8 @@ 
#include <linux/ipc_logging.h>

#include <linux/pm.h>



#include <linux/regulator/consumer.h>



#define SPCOM_LOG_PAGE_CNT 10



#define spcom_ipc_log_string(_x...) do {				\
@@ -678,6 +680,12 @@ static int spcom_handle_restart_sp_command(void *cmd_buf, int cmd_size) 
	void *subsystem_get_retval = NULL;

	struct spcom_user_restart_sp_command *cmd = cmd_buf;



	struct regulator *sp_vreg = NULL;

	struct regulator *sp_gpio = NULL;



	int ret = 0;

	int regulator_retval = 0;



	if (!cmd) {

		spcom_pr_err("NULL cmd_buf\n");

		return -EINVAL;
@@ -699,13 +707,57 @@ static int spcom_handle_restart_sp_command(void *cmd_buf, int cmd_size) 
			subsystem_get_retval = subsystem_get("spss");

			if (IS_ERR_OR_NULL(subsystem_get_retval)) {

				spcom_pr_err("spss - restart - Failed start\n");

				return -ENODEV;

				ret = -ENODEV;

				goto disable_pmic_vote;

			}

			spcom_pr_info("restart - spss started.\n");

		}

	}

	spcom_pr_dbg("restart - PIL FW loading process is complete\n");

	return 0;



disable_pmic_vote:



	sp_vreg = regulator_get(&(spcom_dev->pdev->dev), "vreg_sp");

	if (IS_ERR_OR_NULL(sp_vreg)) {

		regulator_retval = PTR_ERR(sp_vreg);

		spcom_pr_err("get vreg_sp regulator failed, regulator_retval = %d",

			regulator_retval);

		goto exit_reset_handler;

	}

	sp_gpio = regulator_get(&(spcom_dev->pdev->dev), "gpio_sp");

	if (IS_ERR_OR_NULL(sp_gpio)) {

		regulator_retval = PTR_ERR(sp_gpio);

		spcom_pr_err("get gpio_sp regulator failed, regulator_retval = %d",

			regulator_retval);

		goto exit_reset_handler;

	}



	regulator_retval = regulator_enable(sp_vreg);

	if (regulator_retval)

		spcom_pr_err("enable vreg_sp regulator failed, regulator_retval = %d",

			regulator_retval);

	regulator_retval = regulator_enable(sp_gpio);

	if (regulator_retval)

		spcom_pr_err("enable gpio_sp regulator failed, regulator_retval = %d",

			regulator_retval);



	regulator_retval = regulator_disable(sp_vreg);

	if (regulator_retval)

		spcom_pr_err("disable vreg_sp regulator failed, regulator_retval = %d",

			regulator_retval);

	regulator_retval = regulator_disable(sp_gpio);

	if (regulator_retval)

		spcom_pr_err("disable gpio_sp regulator failed, regulator_retval = %d",

			regulator_retval);



exit_reset_handler:



	if (!IS_ERR_OR_NULL(sp_vreg))

		regulator_put(sp_vreg);

	if (!IS_ERR_OR_NULL(sp_gpio))

		regulator_put(sp_gpio);



	return ret;

}



/**