91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
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/* 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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#ifndef __MTK_LP_MODULE_H__
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#define __MTK_LP_MODULE_H__
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#include <linux/soc/mediatek/mtk-lpm.h>
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#include <linux/cpumask.h>
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#include <linux/notifier.h>
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#include <mtk_lpm_type.h>
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#define MTK_LPM_DTS_COMPATIBLE "mediatek,mtk-lpm"
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#define MTK_LP_REQ_NONE 0
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#define MTK_LP_REQ_NOLOCK (1<<0L)
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#define MTK_LP_REQ_NOBROADCAST (1<<1L)
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#define MTK_LP_REQ_NOSUSPEND (1<<2L)
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#define MTK_LP_REQ_NOSYSCORE_CB (1<<3L)
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enum MT_LPM_ISSUER_TYPE {
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MT_LPM_ISSUER_SUSPEND,
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MT_LPM_ISSUER_CPUIDLE
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};
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struct mtk_lpm_issuer {
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int (*log)(int type, const char *prefix, void *data);
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};
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struct mtk_lpm_model_op {
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int (*prompt)(int cpu,
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const struct mtk_lpm_issuer *issuer);
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int (*prepare_enter)(int promtp, int cpu,
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const struct mtk_lpm_issuer *issuer);
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void (*prepare_resume)(int cpu,
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const struct mtk_lpm_issuer *issuer);
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void (*reflect)(int cpu,
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const struct mtk_lpm_issuer *issuer);
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};
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struct mtk_lpm_model {
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unsigned int flag;
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struct mtk_lpm_model_op op;
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};
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struct mtk_lpm_nb_data {
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int cpu;
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int index;
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struct mtk_lpm_model *model;
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struct mtk_lpm_issuer *issuer;
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};
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int mtk_lp_model_register(const char *name, struct mtk_lpm_model *lpm);
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int mtk_lp_model_unregister(const char *name);
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int mtk_lp_issuer_register(struct mtk_lpm_issuer *issuer);
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int mtk_lp_issuer_unregister(struct mtk_lpm_issuer *issuer);
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#define MTK_LPM_NB_ACT_BIT 24
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#define MTK_LPM_NB_ATOMIC_ACT_BIT 28
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#define MTK_LPM_NB_ACT_BITS \
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(MTK_LPM_NB_ATOMIC_ACT_BIT - MTK_LPM_NB_ACT_BIT)
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#define MTK_LPM_NB_ACT_MASK \
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((1<<MTK_LPM_NB_ACT_BITS) - 1)
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#define MTK_LPM_NB_ACT(x) \
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((x & MTK_LPM_NB_ACT_MASK)<<MTK_LPM_NB_ACT_BIT)
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#define MTK_LPM_NB_ATOMIC_ACT(x) \
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(x<<MTK_LPM_NB_ATOMIC_ACT_BIT)
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/* atomic notification id */
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#define MTK_LPM_NB_AFTER_PROMPT MTK_LPM_NB_ATOMIC_ACT(0x01)
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#define MTK_LPM_NB_BEFORE_REFLECT MTK_LPM_NB_ATOMIC_ACT(0x02)
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/* normal notification id */
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#define MTK_LPM_NB_PREPARE MTK_LPM_NB_ACT(0x01)
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#define MTK_LPM_NB_RESUME MTK_LPM_NB_ACT(0x02)
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#define MTK_LPM_NB_MASK ((1<<MTK_LPM_NB_ACT_BIT) - 1)
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int mtk_lpm_notifier_register(struct notifier_block *n);
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int mtk_lpm_notifier_unregister(struct notifier_block *n);
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int mtk_lpm_suspend_registry(const char *name, struct mtk_lpm_model *suspend);
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extern int mtk_lpm_drv_cpuidle_ops_set(struct mtk_cpuidle_op *op);
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#endif /* __MTK_LP_MODULE_H__ */
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