mirror of https://gitee.com/openkylin/linux.git
59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
|
/*
|
||
|
|
* Simple Power-Managed Bus Driver
|
||
|
|
*
|
||
|
|
* Copyright (C) 2014-2015 Glider bvba
|
||
|
|
*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/of_platform.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <linux/pm_runtime.h>
|
||
|
|
|
||
|
|
|
||
|
|
static int simple_pm_bus_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct device_node *np = pdev->dev.of_node;
|
||
|
|
|
||
|
|
dev_dbg(&pdev->dev, "%s\n", __func__);
|
||
|
|
|
||
|
|
pm_runtime_enable(&pdev->dev);
|
||
|
|
|
||
|
|
if (np)
|
||
|
|
of_platform_populate(np, NULL, NULL, &pdev->dev);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int simple_pm_bus_remove(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
dev_dbg(&pdev->dev, "%s\n", __func__);
|
||
|
|
|
||
|
|
pm_runtime_disable(&pdev->dev);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct of_device_id simple_pm_bus_of_match[] = {
|
||
|
|
{ .compatible = "simple-pm-bus", },
|
||
|
|
{ /* sentinel */ }
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);
|
||
|
|
|
||
|
|
static struct platform_driver simple_pm_bus_driver = {
|
||
|
|
.probe = simple_pm_bus_probe,
|
||
|
|
.remove = simple_pm_bus_remove,
|
||
|
|
.driver = {
|
||
|
|
.name = "simple-pm-bus",
|
||
|
|
.of_match_table = simple_pm_bus_of_match,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
module_platform_driver(simple_pm_bus_driver);
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("Simple Power-Managed Bus Driver");
|
||
|
|
MODULE_AUTHOR("Geert Uytterhoeven <geert+renesas@glider.be>");
|
||
|
|
MODULE_LICENSE("GPL v2");
|