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soc: spcom: unvote for sp regulators

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

Change-Id: I6d9f24c3937188b316d5912751c48207f3b8ab85
Signed-off-by: Amir Samuelov <amirs@codeaurora.org>
This commit is contained in:
Amir Samuelov 2021-03-11 14:29:21 +02:00
commit f2508e2eee
1 changed files with 55 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

58
drivers/soc/qcom/spcom.c
View file

@ -1,6 +1,6 @@
// 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;
}
/**