1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * TI PWM Subsystem driver |
4 | * |
5 | * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ |
6 | */ |
7 | |
8 | #include <linux/module.h> |
9 | #include <linux/platform_device.h> |
10 | #include <linux/io.h> |
11 | #include <linux/err.h> |
12 | #include <linux/pm_runtime.h> |
13 | #include <linux/of_platform.h> |
14 | |
15 | static const struct of_device_id pwmss_of_match[] = { |
16 | { .compatible = "ti,am33xx-pwmss" }, |
17 | {}, |
18 | }; |
19 | MODULE_DEVICE_TABLE(of, pwmss_of_match); |
20 | |
21 | static int pwmss_probe(struct platform_device *pdev) |
22 | { |
23 | int ret; |
24 | struct device_node *node = pdev->dev.of_node; |
25 | |
26 | pm_runtime_enable(dev: &pdev->dev); |
27 | |
28 | /* Populate all the child nodes here... */ |
29 | ret = of_platform_populate(root: node, NULL, NULL, parent: &pdev->dev); |
30 | if (ret) |
31 | dev_err(&pdev->dev, "no child node found\n" ); |
32 | |
33 | return ret; |
34 | } |
35 | |
36 | static void pwmss_remove(struct platform_device *pdev) |
37 | { |
38 | pm_runtime_disable(dev: &pdev->dev); |
39 | } |
40 | |
41 | static struct platform_driver pwmss_driver = { |
42 | .driver = { |
43 | .name = "pwmss" , |
44 | .of_match_table = pwmss_of_match, |
45 | }, |
46 | .probe = pwmss_probe, |
47 | .remove_new = pwmss_remove, |
48 | }; |
49 | |
50 | module_platform_driver(pwmss_driver); |
51 | |
52 | MODULE_DESCRIPTION("PWM Subsystem driver" ); |
53 | MODULE_AUTHOR("Texas Instruments" ); |
54 | MODULE_LICENSE("GPL" ); |
55 | |