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SmartReflex AVS Errorgen module supplies signals to Voltage Processor. It is suggested that by disabling Errorgen module before we disable VP, we might be able to ensure lesser chances of race condition to occur in the system. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/*
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* Smart reflex Class 3 specific implementations
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*
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* Author: Thara Gopinath <thara@ti.com>
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*
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* Copyright (C) 2010 Texas Instruments, Inc.
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* Thara Gopinath <thara@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "smartreflex.h"
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static int sr_class3_enable(struct voltagedomain *voltdm)
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{
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unsigned long volt = voltdm_get_voltage(voltdm);
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if (!volt) {
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pr_warning("%s: Curr voltage unknown. Cannot enable sr_%s\n",
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__func__, voltdm->name);
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return -ENODATA;
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}
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omap_vp_enable(voltdm);
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return sr_enable(voltdm, volt);
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}
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static int sr_class3_disable(struct voltagedomain *voltdm, int is_volt_reset)
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{
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sr_disable_errgen(voltdm);
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omap_vp_disable(voltdm);
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sr_disable(voltdm);
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if (is_volt_reset)
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voltdm_reset(voltdm);
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return 0;
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}
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static int sr_class3_configure(struct voltagedomain *voltdm)
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{
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return sr_configure_errgen(voltdm);
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}
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/* SR class3 structure */
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static struct omap_sr_class_data class3_data = {
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.enable = sr_class3_enable,
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.disable = sr_class3_disable,
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.configure = sr_class3_configure,
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.class_type = SR_CLASS3,
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};
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/* Smartreflex Class3 init API to be called from board file */
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static int __init sr_class3_init(void)
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{
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pr_info("SmartReflex Class3 initialized\n");
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return sr_register_class(&class3_data);
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}
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late_initcall(sr_class3_init);
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