projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| fa765823 TG |
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 | ||
| b86aeafc | 14 | #include <linux/power/smartreflex.h> |
| dad2d9e6 | 15 | #include "soc.h" |
| b86aeafc | 16 | #include "voltage.h" |
| fa765823 | 17 | |
| 80821c9c | 18 | static int sr_class3_enable(struct omap_sr *sr) |
| fa765823 | 19 | { |
| 80821c9c | 20 | unsigned long volt = voltdm_get_voltage(sr->voltdm); |
| fa765823 TG |
21 | |
| 22 | if (!volt) { | |
| 8b765d72 JP |
23 | pr_warning("%s: Curr voltage unknown. Cannot enable %s\n", |
| 24 | __func__, sr->name); | |
| fa765823 TG |
25 | return -ENODATA; |
| 26 | } | |
| 27 | ||
| 80821c9c | 28 | omap_vp_enable(sr->voltdm); |
| 299066bb | 29 | return sr_enable(sr, volt); |
| fa765823 TG |
30 | } |
| 31 | ||
| 80821c9c | 32 | static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset) |
| fa765823 | 33 | { |
| 3dfc35ff | 34 | sr_disable_errgen(sr); |
| 80821c9c | 35 | omap_vp_disable(sr->voltdm); |
| 299066bb | 36 | sr_disable(sr); |
| fa765823 | 37 | if (is_volt_reset) |
| 80821c9c | 38 | voltdm_reset(sr->voltdm); |
| fa765823 TG |
39 | |
| 40 | return 0; | |
| 41 | } | |
| 42 | ||
| 80821c9c | 43 | static int sr_class3_configure(struct omap_sr *sr) |
| fa765823 | 44 | { |
| 3dfc35ff | 45 | return sr_configure_errgen(sr); |
| fa765823 TG |
46 | } |
| 47 | ||
| 48 | /* SR class3 structure */ | |
| 49 | static 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 */ | |
| 57 | static int __init sr_class3_init(void) | |
| 58 | { | |
| 59 | pr_info("SmartReflex Class3 initialized\n"); | |
| 60 | return sr_register_class(&class3_data); | |
| 61 | } | |
| b76c8b19 | 62 | omap_late_initcall(sr_class3_init); |