omap-pm.h

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/*
 * omap-pm.h - OMAP power management interface
 *
 * Copyright (C) 2008-2010 Texas Instruments, Inc.
 * Copyright (C) 2008-2010 Nokia Corporation
 * Paul Walmsley
 *
 * Interface developed by (in alphabetical order): Karthik Dasu, Jouni
 * Högander, Tony Lindgren, Rajendra Nayak, Sakari Poussa,
 * Veeramanikandan Raju, Anand Sawant, Igor Stoppa, Paul Walmsley,
 * Richard Woodruff
 */

#ifndef ASM_ARM_ARCH_OMAP_OMAP_PM_H
#define ASM_ARM_ARCH_OMAP_OMAP_PM_H

#include <linux/device.h>
#include <linux/cpufreq.h>
#include <linux/clk.h>
#include <linux/opp.h>

/*
 * agent_id values for use with omap_pm_set_min_bus_tput():
 *
 * OCP_INITIATOR_AGENT is only valid for devices that can act as
 * initiators -- it represents the device's L3 interconnect
 * connection.  OCP_TARGET_AGENT represents the device's L4
 * interconnect connection.
 */
#define OCP_TARGET_AGENT        1
#define OCP_INITIATOR_AGENT     2

int __init omap_pm_if_early_init(void);

int __init omap_pm_if_init(void);

void omap_pm_if_exit(void);

/*
 * Device-driver-originated constraints (via board-*.c files, platform_data)
 */


int omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t);


int omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r);


int omap_pm_set_max_dev_wakeup_lat(struct device *req_dev, struct device *dev,
                   long t);


int omap_pm_set_max_sdma_lat(struct device *dev, long t);


int omap_pm_set_min_clk_rate(struct device *dev, struct clk *c, long r);

/*
 * DSP Bridge-specific constraints
 */

const struct omap_opp *omap_pm_dsp_get_opp_table(void);

void omap_pm_dsp_set_min_opp(u8 opp_id);

u8 omap_pm_dsp_get_opp(void);


/*
 * CPUFreq-originated constraint
 *
 * In the future, this should be handled by custom OPP clocktype
 * functions.
 */

struct cpufreq_frequency_table **omap_pm_cpu_get_freq_table(void);

void omap_pm_cpu_set_freq(unsigned long f);

unsigned long omap_pm_cpu_get_freq(void);


/*
 * Device context loss tracking
 */

int omap_pm_get_dev_context_loss_count(struct device *dev);

void omap_pm_enable_off_mode(void);
void omap_pm_disable_off_mode(void);

#endif