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smartreflex-class3.c

/*
 * Smart reflex Class 3 specific implementations
 *
 * Author: Thara Gopinath       <thara@ti.com>
 *
 * Copyright (C) 2010 Texas Instruments, Inc.
 * Thara Gopinath <thara@ti.com>
 *
 * 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 <plat/smartreflex.h>

static int sr_class3_enable(struct voltagedomain *voltdm)
{
      unsigned long volt = omap_voltage_get_nom_volt(voltdm);

      if (!volt) {
            pr_warning("%s: Curr voltage unknown. Cannot enable sr_%s\n",
                        __func__, voltdm->name);
            return -ENODATA;
      }

      omap_vp_enable(voltdm);
      return sr_enable(voltdm, volt);
}

static int sr_class3_disable(struct voltagedomain *voltdm, int is_volt_reset)
{
      omap_vp_disable(voltdm);
      sr_disable(voltdm);
      if (is_volt_reset)
            omap_voltage_reset(voltdm);

      return 0;
}

static int sr_class3_configure(struct voltagedomain *voltdm)
{
      return sr_configure_errgen(voltdm);
}

/* SR class3 structure */
static struct omap_sr_class_data class3_data = {
      .enable = sr_class3_enable,
      .disable = sr_class3_disable,
      .configure = sr_class3_configure,
      .class_type = SR_CLASS3,
};

/* Smartreflex Class3 init API to be called from board file */
static int __init sr_class3_init(void)
{
      pr_info("SmartReflex Class3 initialized\n");
      return sr_register_class(&class3_data);
}
late_initcall(sr_class3_init);

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