mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 12:36:41 +07:00
cf30fb4a4f
People often point to the Integrator/Versatile/Realview implementations to justify using the consumer name as the sole selector for clocks. Eliminate this excuse by changing the Realview implementation, so it provides a better example of how it should be done. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
/*
|
|
* linux/arch/arm/mach-realview/clock.c
|
|
*
|
|
* Copyright (C) 2004 ARM Limited.
|
|
* Written by Deep Blue Solutions Limited.
|
|
*
|
|
* 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/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/device.h>
|
|
#include <linux/list.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/err.h>
|
|
#include <linux/string.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/mutex.h>
|
|
|
|
#include <asm/hardware/icst307.h>
|
|
|
|
#include "clock.h"
|
|
|
|
int clk_enable(struct clk *clk)
|
|
{
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(clk_enable);
|
|
|
|
void clk_disable(struct clk *clk)
|
|
{
|
|
}
|
|
EXPORT_SYMBOL(clk_disable);
|
|
|
|
unsigned long clk_get_rate(struct clk *clk)
|
|
{
|
|
return clk->rate;
|
|
}
|
|
EXPORT_SYMBOL(clk_get_rate);
|
|
|
|
long clk_round_rate(struct clk *clk, unsigned long rate)
|
|
{
|
|
struct icst307_vco vco;
|
|
vco = icst307_khz_to_vco(clk->params, rate / 1000);
|
|
return icst307_khz(clk->params, vco) * 1000;
|
|
}
|
|
EXPORT_SYMBOL(clk_round_rate);
|
|
|
|
int clk_set_rate(struct clk *clk, unsigned long rate)
|
|
{
|
|
int ret = -EIO;
|
|
|
|
if (clk->setvco) {
|
|
struct icst307_vco vco;
|
|
|
|
vco = icst307_khz_to_vco(clk->params, rate / 1000);
|
|
clk->rate = icst307_khz(clk->params, vco) * 1000;
|
|
clk->setvco(clk, vco);
|
|
ret = 0;
|
|
}
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(clk_set_rate);
|