Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Alexander Shiyan |
188 |
97.92% |
1 |
33.33% |
| Thomas Gleixner |
2 |
1.04% |
1 |
33.33% |
| Paul Gortmaker |
2 |
1.04% |
1 |
33.33% |
| Total |
192 |
|
3 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* CLPS711X CPU idle driver
*
* Copyright (C) 2014 Alexander Shiyan <shc_work@mail.ru>
*/
#include <linux/cpuidle.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#define CLPS711X_CPUIDLE_NAME "clps711x-cpuidle"
static void __iomem *clps711x_halt;
static int clps711x_cpuidle_halt(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
writel(0xaa, clps711x_halt);
return index;
}
static struct cpuidle_driver clps711x_idle_driver = {
.name = CLPS711X_CPUIDLE_NAME,
.owner = THIS_MODULE,
.states[0] = {
.name = "HALT",
.desc = "CLPS711X HALT",
.enter = clps711x_cpuidle_halt,
.exit_latency = 1,
},
.state_count = 1,
};
static int __init clps711x_cpuidle_probe(struct platform_device *pdev)
{
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
clps711x_halt = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(clps711x_halt))
return PTR_ERR(clps711x_halt);
return cpuidle_register(&clps711x_idle_driver, NULL);
}
static struct platform_driver clps711x_cpuidle_driver = {
.driver = {
.name = CLPS711X_CPUIDLE_NAME,
},
};
builtin_platform_driver_probe(clps711x_cpuidle_driver, clps711x_cpuidle_probe);