6f88e9bc21
Create simple omap_devices for the main processors and busses. This is required to support the forth-coming device-based OPP approach, where OPPs are managed and tracked at the device level. Also, move these common PM init functions into a common_pm_init call that is called as a device_initcall(). The PM init is done at this level to ensure that the driver core is initialized before initialized. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> [paul@pwsan.com: sparse warnings cleaned up; newly-created functions moved from mach-omap2/io.c to mach-omap2/pm.c; newly-created functions renamed to start with "omap2" rather than "omap"] Signed-off-by: Paul Walmsley <paul@pwsan.com>
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
/*
|
|
* 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 *dsp_dev;
|
|
static struct device *l3_dev;
|
|
|
|
struct device *omap2_get_mpuss_device(void)
|
|
{
|
|
WARN_ON_ONCE(!mpu_dev);
|
|
return mpu_dev;
|
|
}
|
|
|
|
struct device *omap2_get_dsp_device(void)
|
|
{
|
|
WARN_ON_ONCE(!dsp_dev);
|
|
return dsp_dev;
|
|
}
|
|
|
|
struct device *omap2_get_l3_device(void)
|
|
{
|
|
WARN_ON_ONCE(!l3_dev);
|
|
return l3_dev;
|
|
}
|
|
|
|
/* 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", &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);
|
|
|