1/*
2 * Simple Power-Managed Bus Driver
3 *
4 * Copyright (C) 2014-2015 Glider bvba
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License.  See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/module.h>
12#include <linux/of_platform.h>
13#include <linux/platform_device.h>
14#include <linux/pm_runtime.h>
15
16
17static int simple_pm_bus_probe(struct platform_device *pdev)
18{
19	struct device_node *np = pdev->dev.of_node;
20
21	dev_dbg(&pdev->dev, "%s\n", __func__);
22
23	pm_runtime_enable(&pdev->dev);
24
25	if (np)
26		of_platform_populate(np, NULL, NULL, &pdev->dev);
27
28	return 0;
29}
30
31static int simple_pm_bus_remove(struct platform_device *pdev)
32{
33	dev_dbg(&pdev->dev, "%s\n", __func__);
34
35	pm_runtime_disable(&pdev->dev);
36	return 0;
37}
38
39static const struct of_device_id simple_pm_bus_of_match[] = {
40	{ .compatible = "simple-pm-bus", },
41	{ /* sentinel */ }
42};
43MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);
44
45static struct platform_driver simple_pm_bus_driver = {
46	.probe = simple_pm_bus_probe,
47	.remove = simple_pm_bus_remove,
48	.driver = {
49		.name = "simple-pm-bus",
50		.of_match_table = simple_pm_bus_of_match,
51	},
52};
53
54module_platform_driver(simple_pm_bus_driver);
55
56MODULE_DESCRIPTION("Simple Power-Managed Bus Driver");
57MODULE_AUTHOR("Geert Uytterhoeven <geert+renesas@glider.be>");
58MODULE_LICENSE("GPL v2");
59