// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2019 MediaTek Inc.
 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <mtk_lp_plat_apmcu.h>

#include "mt6779.h"
#include "mt6779_ipi_sspm.h"

#include <idles/mt6779_mcusys.h>
#include <suspend/mt6779_suspend.h>

static unsigned int mt6779_lp_pwr_state;

/*
 * Please make sure the race condition protection upfront
 * when calling mtk_lp_plat_do_mcusys_prepare_pdn()
 */
int mt6779_do_mcusys_prepare_pdn(unsigned int status,
					   unsigned int *resource_req)
{
	mt6779_sspm_notify_enter(status);
	mt6779_lp_pwr_state |= (status | PLAT_GIC_MASKED
				| PLAT_MCUSYSOFF_PREPARED);
	return 0;
}

/*
 * Please make sure the race condition protection upfront
 * when calling mtk_lp_plat_do_mcusys_prepare_on()
 */
static int __mt6779_do_mcusys_prepare_on(unsigned int clr_status)
{
	mt6779_sspm_notify_leave(clr_status);
	mt6779_lp_pwr_state &= ~(clr_status | PLAT_GIC_MASKED
				  | PLAT_MCUSYSOFF_PREPARED);

	return 0;
}

int mt6779_do_mcusys_prepare_on(void)
{
	unsigned int status = mt6779_lp_pwr_state;

	return __mt6779_do_mcusys_prepare_on(status);
}

int mt6779_do_mcusys_prepare_on_ex(unsigned int clr_status)
{
	return __mt6779_do_mcusys_prepare_on(clr_status);
}

static int  mt6779_init(void)
{
	mtk_lp_plat_apmcu_init();
	mt6779_model_mcusys_init();
	mt6779_model_suspend_init();
	return 0;
}

static int  mt6779_early_init(void)
{
	mtk_lp_plat_apmcu_early_init();
	return 0;
}


static int __init mtk_lpm_mt6779_init(void)
{
	mt6779_early_init();
	mt6779_init();
	return 0;
}
static void __exit mtk_lpm_mt6779_exit(void)
{
}
module_init(mtk_lpm_mt6779_init);
module_exit(mtk_lpm_mt6779_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Mediatek LPM mt6779");
MODULE_AUTHOR("MediaTek Inc.");