61 строка
1.7 KiB
C
61 строка
1.7 KiB
C
/*
|
|
* OMAP hardware spinlock device initialization
|
|
*
|
|
* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com
|
|
*
|
|
* Contact: Simon Que <sque@ti.com>
|
|
* Hari Kanigeri <h-kanigeri2@ti.com>
|
|
*
|
|
* 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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/err.h>
|
|
#include <linux/hwspinlock.h>
|
|
|
|
#include <plat/omap_hwmod.h>
|
|
#include <plat/omap_device.h>
|
|
|
|
static struct hwspinlock_pdata omap_hwspinlock_pdata __initdata = {
|
|
.base_id = 0,
|
|
};
|
|
|
|
int __init hwspinlocks_init(void)
|
|
{
|
|
int retval = 0;
|
|
struct omap_hwmod *oh;
|
|
struct platform_device *pdev;
|
|
const char *oh_name = "spinlock";
|
|
const char *dev_name = "omap_hwspinlock";
|
|
|
|
/*
|
|
* Hwmod lookup will fail in case our platform doesn't support the
|
|
* hardware spinlock module, so it is safe to run this initcall
|
|
* on all omaps
|
|
*/
|
|
oh = omap_hwmod_lookup(oh_name);
|
|
if (oh == NULL)
|
|
return -EINVAL;
|
|
|
|
pdev = omap_device_build(dev_name, 0, oh, &omap_hwspinlock_pdata,
|
|
sizeof(struct hwspinlock_pdata),
|
|
NULL, 0, false);
|
|
if (IS_ERR(pdev)) {
|
|
pr_err("Can't build omap_device for %s:%s\n", dev_name,
|
|
oh_name);
|
|
retval = PTR_ERR(pdev);
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
/* early board code might need to reserve specific hwspinlock instances */
|
|
postcore_initcall(hwspinlocks_init);
|