mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
299066bb37
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
/*
|
|
* 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 <linux/power/smartreflex.h>
|
|
#include "soc.h"
|
|
#include "voltage.h"
|
|
|
|
static int sr_class3_enable(struct omap_sr *sr)
|
|
{
|
|
unsigned long volt = voltdm_get_voltage(sr->voltdm);
|
|
|
|
if (!volt) {
|
|
pr_warning("%s: Curr voltage unknown. Cannot enable %s\n",
|
|
__func__, sr->name);
|
|
return -ENODATA;
|
|
}
|
|
|
|
omap_vp_enable(sr->voltdm);
|
|
return sr_enable(sr, volt);
|
|
}
|
|
|
|
static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
|
|
{
|
|
sr_disable_errgen(sr);
|
|
omap_vp_disable(sr->voltdm);
|
|
sr_disable(sr);
|
|
if (is_volt_reset)
|
|
voltdm_reset(sr->voltdm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sr_class3_configure(struct omap_sr *sr)
|
|
{
|
|
return sr_configure_errgen(sr);
|
|
}
|
|
|
|
/* 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);
|
|
}
|
|
omap_late_initcall(sr_class3_init);
|