669bb47938
Commit 2ac29a1 (ARM: PMU: fix runtime PM enable) moved the call to
pm_runtime_enable() from the OMAP2+ PMU code into the ARM PERF core
code. However, header for pm_runtime which should have been removed
from the OMAP2+ PMU code was not. It is no longer necessary to include
this header in the OMAP2+ PMU code and so remove it.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*
|
|
* OMAP2 ARM Performance Monitoring Unit (PMU) Support
|
|
*
|
|
* Copyright (C) 2012 Texas Instruments, Inc.
|
|
*
|
|
* Contacts:
|
|
* Jon Hunter <jon-hunter@ti.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
#include <asm/pmu.h>
|
|
|
|
#include "soc.h"
|
|
#include "omap_hwmod.h"
|
|
#include "omap_device.h"
|
|
|
|
static char *omap2_pmu_oh_names[] = {"mpu"};
|
|
static char *omap3_pmu_oh_names[] = {"mpu", "debugss"};
|
|
static char *omap4430_pmu_oh_names[] = {"l3_main_3", "l3_instr", "debugss"};
|
|
static struct platform_device *omap_pmu_dev;
|
|
|
|
/**
|
|
* omap2_init_pmu - creates and registers PMU platform device
|
|
* @oh_num: Number of OMAP HWMODs required to create PMU device
|
|
* @oh_names: Array of OMAP HWMODS names required to create PMU device
|
|
*
|
|
* Uses OMAP HWMOD framework to create and register an ARM PMU device
|
|
* from a list of HWMOD names passed. Currently supports OMAP2, OMAP3
|
|
* and OMAP4 devices.
|
|
*/
|
|
static int __init omap2_init_pmu(unsigned oh_num, char *oh_names[])
|
|
{
|
|
int i;
|
|
struct omap_hwmod *oh[3];
|
|
char *dev_name = "arm-pmu";
|
|
|
|
if ((!oh_num) || (oh_num > 3))
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < oh_num; i++) {
|
|
oh[i] = omap_hwmod_lookup(oh_names[i]);
|
|
if (!oh[i]) {
|
|
pr_err("Could not look up %s hwmod\n", oh_names[i]);
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
omap_pmu_dev = omap_device_build_ss(dev_name, -1, oh, oh_num, NULL, 0,
|
|
NULL, 0, 0);
|
|
WARN(IS_ERR(omap_pmu_dev), "Can't build omap_device for %s.\n",
|
|
dev_name);
|
|
|
|
if (IS_ERR(omap_pmu_dev))
|
|
return PTR_ERR(omap_pmu_dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init omap_init_pmu(void)
|
|
{
|
|
unsigned oh_num;
|
|
char **oh_names;
|
|
|
|
/*
|
|
* To create an ARM-PMU device the following HWMODs
|
|
* are required for the various OMAP2+ devices.
|
|
*
|
|
* OMAP24xx: mpu
|
|
* OMAP3xxx: mpu, debugss
|
|
* OMAP4430: l3_main_3, l3_instr, debugss
|
|
* OMAP4460/70: mpu, debugss
|
|
*/
|
|
if (cpu_is_omap443x()) {
|
|
oh_num = ARRAY_SIZE(omap4430_pmu_oh_names);
|
|
oh_names = omap4430_pmu_oh_names;
|
|
/* XXX Remove the next two lines when CTI driver available */
|
|
pr_info("ARM PMU: not yet supported on OMAP4430 due to missing CTI driver\n");
|
|
return 0;
|
|
} else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
|
|
oh_num = ARRAY_SIZE(omap3_pmu_oh_names);
|
|
oh_names = omap3_pmu_oh_names;
|
|
} else {
|
|
oh_num = ARRAY_SIZE(omap2_pmu_oh_names);
|
|
oh_names = omap2_pmu_oh_names;
|
|
}
|
|
|
|
return omap2_init_pmu(oh_num, oh_names);
|
|
}
|
|
subsys_initcall(omap_init_pmu);
|