65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#include <linux/kernel.h>
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#include <mtk_lp_plat_apmcu.h>
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#include "mt6877.h"
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#include <suspend/mt6877_suspend.h>
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static unsigned int mt6877_lp_pwr_state;
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/*
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* Please make sure the race condition protection upfront
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* when calling mtk_lp_plat_do_mcusys_prepare_pdn()
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*/
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int mt6877_do_mcusys_prepare_pdn(unsigned int status,
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unsigned int *resource_req)
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{
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mt6877_lp_pwr_state |= (status | PLAT_GIC_MASKED
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| PLAT_MCUSYSOFF_PREPARED);
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return 0;
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}
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/*
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* Please make sure the race condition protection upfront
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* when calling mtk_lp_plat_do_mcusys_prepare_on()
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*/
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static int __mt6877_do_mcusys_prepare_on(unsigned int clr_status)
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{
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mt6877_lp_pwr_state &= ~(clr_status | PLAT_GIC_MASKED
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| PLAT_MCUSYSOFF_PREPARED);
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return 0;
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}
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int mt6877_do_mcusys_prepare_on(void)
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{
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unsigned int status = mt6877_lp_pwr_state;
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return __mt6877_do_mcusys_prepare_on(status);
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}
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int mt6877_do_mcusys_prepare_on_ex(unsigned int clr_status)
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{
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return __mt6877_do_mcusys_prepare_on(clr_status);
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}
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static int __init mt6877_init(void)
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{
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mtk_lp_plat_apmcu_init();
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mt6877_model_suspend_init();
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return 0;
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}
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late_initcall_sync(mt6877_init);
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static int __init mt6877_early_init(void)
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{
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mtk_lp_plat_apmcu_early_init();
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return 0;
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}
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subsys_initcall(mt6877_early_init);
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