mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 10:39:23 +07:00
d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Smart reflex Class 3 specific implementations
|
|
*
|
|
* Author: Thara Gopinath <thara@ti.com>
|
|
*
|
|
* Copyright (C) 2010 Texas Instruments, Inc.
|
|
* Thara Gopinath <thara@ti.com>
|
|
*/
|
|
|
|
#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_warn("%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);
|