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 "smartreflex.h"
15 
16 static int sr_class3_enable(struct voltagedomain *voltdm)
17 {
18 	unsigned long volt = voltdm_get_voltage(voltdm);
19 
20 	if (!volt) {
21 		pr_warning("%s: Curr voltage unknown. Cannot enable sr_%s\n",
22 				__func__, voltdm->name);
23 		return -ENODATA;
24 	}
25 
26 	omap_vp_enable(voltdm);
27 	return sr_enable(voltdm, volt);
28 }
29 
30 static int sr_class3_disable(struct voltagedomain *voltdm, int is_volt_reset)
31 {
32 	sr_disable_errgen(voltdm);
33 	omap_vp_disable(voltdm);
34 	sr_disable(voltdm);
35 	if (is_volt_reset)
36 		voltdm_reset(voltdm);
37 
38 	return 0;
39 }
40 
41 static int sr_class3_configure(struct voltagedomain *voltdm)
42 {
43 	return sr_configure_errgen(voltdm);
44 }
45 
46 /* SR class3 structure */
47 static struct omap_sr_class_data class3_data = {
48 	.enable = sr_class3_enable,
49 	.disable = sr_class3_disable,
50 	.configure = sr_class3_configure,
51 	.class_type = SR_CLASS3,
52 };
53 
54 /* Smartreflex Class3 init API to be called from board file */
55 static int __init sr_class3_init(void)
56 {
57 	pr_info("SmartReflex Class3 initialized\n");
58 	return sr_register_class(&class3_data);
59 }
60 late_initcall(sr_class3_init);
61