M7350/kernel/arch/arm/mach-msm/restart-fsm9xxx.c
2024-09-09 08:52:07 +00:00

43 lines
1.3 KiB
C

/* Copyright (c) 2011, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/reboot.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#define FEMTO_GPIO_PS_HOLD 161
void fsm_restart(char mode, const char *cmd)
{
pr_notice("Going down for restart now\n");
msleep(3000);
/* Configure FEMTO_GPIO_PS_HOLD as a general purpose output */
if (gpio_tlmm_config(GPIO_CFG(FEMTO_GPIO_PS_HOLD, 0,
GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL,
GPIO_CFG_2MA), GPIO_CFG_ENABLE))
pr_err("%s: gpio_tlmm_config (gpio=%d) failed\n",
__func__, FEMTO_GPIO_PS_HOLD);
/* Now set it low to power cycle the entire board */
gpio_set_value(FEMTO_GPIO_PS_HOLD, 0);
msleep(10000);
pr_err("Restarting has failed\n");
}