1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Simple Power-Managed Bus Driver
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (C) 2014-2015 Glider bvba
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public
7*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive
8*4882a593Smuzhiyun * for more details.
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/module.h>
12*4882a593Smuzhiyun #include <linux/of_platform.h>
13*4882a593Smuzhiyun #include <linux/platform_device.h>
14*4882a593Smuzhiyun #include <linux/pm_runtime.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun
simple_pm_bus_probe(struct platform_device * pdev)17*4882a593Smuzhiyun static int simple_pm_bus_probe(struct platform_device *pdev)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun struct device_node *np = pdev->dev.of_node;
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun dev_dbg(&pdev->dev, "%s\n", __func__);
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun pm_runtime_enable(&pdev->dev);
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun if (np)
26*4882a593Smuzhiyun of_platform_populate(np, NULL, NULL, &pdev->dev);
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun return 0;
29*4882a593Smuzhiyun }
30*4882a593Smuzhiyun
simple_pm_bus_remove(struct platform_device * pdev)31*4882a593Smuzhiyun static int simple_pm_bus_remove(struct platform_device *pdev)
32*4882a593Smuzhiyun {
33*4882a593Smuzhiyun dev_dbg(&pdev->dev, "%s\n", __func__);
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun pm_runtime_disable(&pdev->dev);
36*4882a593Smuzhiyun return 0;
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun static const struct of_device_id simple_pm_bus_of_match[] = {
40*4882a593Smuzhiyun { .compatible = "simple-pm-bus", },
41*4882a593Smuzhiyun { /* sentinel */ }
42*4882a593Smuzhiyun };
43*4882a593Smuzhiyun MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun static struct platform_driver simple_pm_bus_driver = {
46*4882a593Smuzhiyun .probe = simple_pm_bus_probe,
47*4882a593Smuzhiyun .remove = simple_pm_bus_remove,
48*4882a593Smuzhiyun .driver = {
49*4882a593Smuzhiyun .name = "simple-pm-bus",
50*4882a593Smuzhiyun .of_match_table = simple_pm_bus_of_match,
51*4882a593Smuzhiyun },
52*4882a593Smuzhiyun };
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun module_platform_driver(simple_pm_bus_driver);
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun MODULE_DESCRIPTION("Simple Power-Managed Bus Driver");
57*4882a593Smuzhiyun MODULE_AUTHOR("Geert Uytterhoeven <geert+renesas@glider.be>");
58*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
59