1/*
2 * Smart reflex Class 3 specific implementations
3 *
4 * Author: Thara Gopinath       <thara@ti.com>
5 *
6 * Copyright (C) 2010 Texas Instruments, Inc.
7 * Thara Gopinath <thara@ti.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/power/smartreflex.h>
15#include "soc.h"
16#include "voltage.h"
17
18static int sr_class3_enable(struct omap_sr *sr)
19{
20	unsigned long volt = voltdm_get_voltage(sr->voltdm);
21
22	if (!volt) {
23		pr_warn("%s: Curr voltage unknown. Cannot enable %s\n",
24			__func__, sr->name);
25		return -ENODATA;
26	}
27
28	omap_vp_enable(sr->voltdm);
29	return sr_enable(sr, volt);
30}
31
32static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
33{
34	sr_disable_errgen(sr);
35	omap_vp_disable(sr->voltdm);
36	sr_disable(sr);
37	if (is_volt_reset)
38		voltdm_reset(sr->voltdm);
39
40	return 0;
41}
42
43static int sr_class3_configure(struct omap_sr *sr)
44{
45	return sr_configure_errgen(sr);
46}
47
48/* SR class3 structure */
49static struct omap_sr_class_data class3_data = {
50	.enable = sr_class3_enable,
51	.disable = sr_class3_disable,
52	.configure = sr_class3_configure,
53	.class_type = SR_CLASS3,
54};
55
56/* Smartreflex Class3 init API to be called from board file */
57static int __init sr_class3_init(void)
58{
59	pr_info("SmartReflex Class3 initialized\n");
60	return sr_register_class(&class3_data);
61}
62omap_late_initcall(sr_class3_init);
63