107 lines
2.6 KiB
C
107 lines
2.6 KiB
C
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/*
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* Exynos PM domain support.
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*
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* Copyright (c) 2016 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Implementation of Exynos specific power domain control which is used in
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* conjunction with runtime-pm. Support for both device-tree and non-device-tree
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* based power domain support is included.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __EXYNOS_PD_H
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#define __EXYNOS_PD_H __FILE__
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#include <linux/io.h>
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#include <linux/err.h>
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#include <linux/delay.h>
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#include <linux/of_address.h>
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#include <linux/of_platform.h>
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#include <linux/platform_device.h>
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#include <linux/pm_domain.h>
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#include <linux/pm_runtime.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/mutex.h>
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#include <linux/debugfs.h>
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#include <linux/mfd/samsung/core.h>
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#if defined(CONFIG_EXYNOS_BCM_DBG)
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#include <soc/samsung/exynos-bcm_dbg.h>
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#endif
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#include <soc/samsung/exynos-cpupm.h>
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#include <soc/samsung/exynos-devfreq.h>
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#include <dt-bindings/power/exynos-power.h>
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#define EXYNOS_PD_PREFIX "EXYNOS-PD: "
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#define EXYNOS_PD_DBG_PREFIX "EXYNOS-PD-DBG: "
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#ifndef pr_fmt
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#define pr_fmt(fmt) fmt
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#endif
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#ifdef CONFIG_EXYNOS_PM_DOMAIN_DEBUG
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#define DEBUG_PRINT_INFO(fmt, ...) printk(PM_DOMAIN_PREFIX pr_fmt(fmt), ##__VA_ARGS__)
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#else
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#define DEBUG_PRINT_INFO(fmt, ...)
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#endif
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/* In Exynos, the number of MAX_POWER_DOMAIN is less than 15 */
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#define MAX_PARENT_POWER_DOMAIN 15
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struct exynos_pm_domain;
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struct exynos_pm_domain {
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struct generic_pm_domain genpd;
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char *name;
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unsigned int cal_pdid;
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struct device_node *of_node;
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int (*pd_control)(unsigned int cal_id, int on);
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int (*check_status)(struct exynos_pm_domain *pd);
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bool (*power_down_ok)(void);
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unsigned int bts;
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int devfreq_index;
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struct mutex access_lock;
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int idle_ip_index;
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#if defined(CONFIG_EXYNOS_BCM_DBG)
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struct exynos_bcm_pd_info *bcm;
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#endif
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bool power_down_skipped;
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unsigned int need_smc;
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};
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struct exynos_pd_dbg_info {
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struct device *dev;
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#ifdef CONFIG_DEBUG_FS
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struct dentry *d;
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struct file_operations fops;
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#endif
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};
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#ifdef CONFIG_EXYNOS_PD
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struct exynos_pm_domain *exynos_pd_lookup_name(const char *domain_name);
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int exynos_pd_status(struct exynos_pm_domain *pd);
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#else
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static inline struct exynos_pm_domain *exynos_pd_lookup_name(const char *domain_name)
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{
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return NULL;
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}
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static inline int exynos_pd_status(struct exynos_pm_domain *pd)
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{
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return NULL;
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}
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#endif
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#ifdef CONFIG_SND_SOC_SAMSUNG_VTS
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extern bool vts_is_on(void);
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#endif
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#ifdef CONFIG_SND_SOC_SAMSUNG_ABOX
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extern bool abox_is_on(void);
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#endif
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#endif /* __EXYNOS_PD_H */
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