1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/*
* 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");
|
