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SmartReflex driver interface is natively divided to two parts: - external SmartReflex interface - interface between SmartReflex driver and SmartReflex Class Functions which belong to AVS class interface can use struct omap_sr* instead of struct voltatedomain*, to provide a direct connection between SR driver and SR class. This allows us to optimize and not do additional lookups where none is required. sr_enable() and sr_disable() are interface functions between SR driver and SR class. They are typically used by Class driver to enable/disable SmartReflex hardware module. Now they take struct omap_sr* as input parameter. Signed-off-by: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
63 lines
1.4 KiB
C
63 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 <linux/power/smartreflex.h>
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#include "soc.h"
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#include "voltage.h"
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static int sr_class3_enable(struct omap_sr *sr)
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{
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unsigned long volt = voltdm_get_voltage(sr->voltdm);
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if (!volt) {
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pr_warning("%s: Curr voltage unknown. Cannot enable %s\n",
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__func__, sr->name);
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return -ENODATA;
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}
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omap_vp_enable(sr->voltdm);
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return sr_enable(sr, volt);
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}
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static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
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{
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sr_disable_errgen(sr);
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omap_vp_disable(sr->voltdm);
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sr_disable(sr);
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if (is_volt_reset)
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voltdm_reset(sr->voltdm);
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return 0;
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}
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static int sr_class3_configure(struct omap_sr *sr)
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{
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return sr_configure_errgen(sr);
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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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omap_late_initcall(sr_class3_init);
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