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/* linux/arch/arm/mach-exynos/asv.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* EXYNOS4 - ASV(Adaptive Support Voltage) driver
*
* 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/init.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <plat/cpu.h>
#include <mach/map.h>
#include <mach/asv.h>
static struct samsung_asv *exynos_asv;
static int __init exynos_asv_init(void)
{
exynos_asv = kzalloc(sizeof(struct samsung_asv), GFP_KERNEL);
if (!exynos_asv)
goto out;
if (soc_is_exynos4210())
exynos4210_asv_init(exynos_asv);
else
goto out;
if (exynos_asv->check_vdd_arm) {
if (exynos_asv->check_vdd_arm())
goto out;
}
/* Get HPM Delay value */
if (exynos_asv->get_hpm) {
if (exynos_asv->get_hpm(exynos_asv))
goto out;
} else
goto out;
/* Get IDS ARM Value */
if (exynos_asv->get_ids) {
if (exynos_asv->get_ids(exynos_asv))
goto out;
} else
goto out;
if (exynos_asv->store_result) {
if (exynos_asv->store_result(exynos_asv))
goto out;
} else
goto out;
return 0;
out:
pr_err("EXYNOS : Fail to initialize ASV\n");
kfree(exynos_asv);
return -EINVAL;
}
device_initcall_sync(exynos_asv_init);
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