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/*
* pm.c - Common OMAP2+ power management-related code
*
* Copyright (C) 2010 Texas Instruments, Inc.
* Copyright (C) 2010 Nokia Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/err.h>
#include <plat/omap-pm.h>
#include <plat/omap_device.h>
#include <plat/common.h>
static struct omap_device_pm_latency *pm_lats;
static struct device *mpu_dev;
static struct device *iva_dev;
static struct device *l3_dev;
static struct device *dsp_dev;
struct device *omap2_get_mpuss_device(void)
{
WARN_ON_ONCE(!mpu_dev);
return mpu_dev;
}
struct device *omap2_get_iva_device(void)
{
WARN_ON_ONCE(!iva_dev);
return iva_dev;
}
struct device *omap2_get_l3_device(void)
{
WARN_ON_ONCE(!l3_dev);
return l3_dev;
}
struct device *omap4_get_dsp_device(void)
{
WARN_ON_ONCE(!dsp_dev);
return dsp_dev;
}
EXPORT_SYMBOL(omap4_get_dsp_device);
/* static int _init_omap_device(struct omap_hwmod *oh, void *user) */
static int _init_omap_device(char *name, struct device **new_dev)
{
struct omap_hwmod *oh;
struct omap_device *od;
oh = omap_hwmod_lookup(name);
if (WARN(!oh, "%s: could not find omap_hwmod for %s\n",
__func__, name))
return -ENODEV;
od = omap_device_build(oh->name, 0, oh, NULL, 0, pm_lats, 0, false);
if (WARN(IS_ERR(od), "%s: could not build omap_device for %s\n",
__func__, name))
return -ENODEV;
*new_dev = &od->pdev.dev;
return 0;
}
/*
* Build omap_devices for processors and bus.
*/
static void omap2_init_processor_devices(void)
{
_init_omap_device("mpu", &mpu_dev);
_init_omap_device("iva", &iva_dev);
if (cpu_is_omap44xx())
_init_omap_device("dsp", &dsp_dev);
_init_omap_device("l3_main", &l3_dev);
}
static int __init omap2_common_pm_init(void)
{
omap2_init_processor_devices();
omap_pm_if_init();
return 0;
}
device_initcall(omap2_common_pm_init);
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