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26a84b3e KVA |
1 | /* |
2 | * omap-ocp2scp.c - transform ocp interface protocol to scp protocol | |
3 | * | |
4 | * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * Author: Kishon Vijay Abraham I <kishon@ti.com> | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | */ | |
18 | ||
19 | #include <linux/module.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/err.h> | |
22 | #include <linux/pm_runtime.h> | |
23 | #include <linux/of.h> | |
24 | #include <linux/of_platform.h> | |
25 | ||
26 | static int ocp2scp_remove_devices(struct device *dev, void *c) | |
27 | { | |
28 | struct platform_device *pdev = to_platform_device(dev); | |
29 | ||
30 | platform_device_unregister(pdev); | |
31 | ||
32 | return 0; | |
33 | } | |
34 | ||
0fe763c5 | 35 | static int omap_ocp2scp_probe(struct platform_device *pdev) |
26a84b3e | 36 | { |
0133370f | 37 | int ret; |
0133370f | 38 | struct device_node *np = pdev->dev.of_node; |
26a84b3e KVA |
39 | |
40 | if (np) { | |
41 | ret = of_platform_populate(np, NULL, NULL, &pdev->dev); | |
42 | if (ret) { | |
0133370f KVA |
43 | dev_err(&pdev->dev, |
44 | "failed to add resources for ocp2scp child\n"); | |
26a84b3e KVA |
45 | goto err0; |
46 | } | |
47 | } | |
0133370f | 48 | |
26a84b3e KVA |
49 | pm_runtime_enable(&pdev->dev); |
50 | ||
51 | return 0; | |
52 | ||
53 | err0: | |
54 | device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices); | |
55 | ||
56 | return ret; | |
57 | } | |
58 | ||
0fe763c5 | 59 | static int omap_ocp2scp_remove(struct platform_device *pdev) |
26a84b3e KVA |
60 | { |
61 | pm_runtime_disable(&pdev->dev); | |
62 | device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices); | |
63 | ||
64 | return 0; | |
65 | } | |
66 | ||
67 | #ifdef CONFIG_OF | |
68 | static const struct of_device_id omap_ocp2scp_id_table[] = { | |
69 | { .compatible = "ti,omap-ocp2scp" }, | |
70 | {} | |
71 | }; | |
46ca6811 | 72 | MODULE_DEVICE_TABLE(of, omap_ocp2scp_id_table); |
26a84b3e KVA |
73 | #endif |
74 | ||
75 | static struct platform_driver omap_ocp2scp_driver = { | |
76 | .probe = omap_ocp2scp_probe, | |
0fe763c5 | 77 | .remove = omap_ocp2scp_remove, |
26a84b3e KVA |
78 | .driver = { |
79 | .name = "omap-ocp2scp", | |
80 | .owner = THIS_MODULE, | |
81 | .of_match_table = of_match_ptr(omap_ocp2scp_id_table), | |
82 | }, | |
83 | }; | |
84 | ||
85 | module_platform_driver(omap_ocp2scp_driver); | |
86 | ||
87 | MODULE_ALIAS("platform: omap-ocp2scp"); | |
88 | MODULE_AUTHOR("Texas Instruments Inc."); | |
89 | MODULE_DESCRIPTION("OMAP OCP2SCP driver"); | |
90 | MODULE_LICENSE("GPL v2"); |