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 <plat/smartreflex.h> 15 16 static int sr_class3_enable(struct voltagedomain *voltdm) 17 { 18 unsigned long volt = omap_voltage_get_nom_volt(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 omap_vp_disable(voltdm); 33 sr_disable(voltdm); 34 if (is_volt_reset) 35 omap_voltage_reset(voltdm); 36 37 return 0; 38 } 39 40 static int sr_class3_configure(struct voltagedomain *voltdm) 41 { 42 return sr_configure_errgen(voltdm); 43 } 44 45 /* SR class3 structure */ 46 static struct omap_sr_class_data class3_data = { 47 .enable = sr_class3_enable, 48 .disable = sr_class3_disable, 49 .configure = sr_class3_configure, 50 .class_type = SR_CLASS3, 51 }; 52 53 /* Smartreflex Class3 init API to be called from board file */ 54 static int __init sr_class3_init(void) 55 { 56 pr_info("SmartReflex Class3 initialized\n"); 57 return sr_register_class(&class3_data); 58 } 59 late_initcall(sr_class3_init); 60