projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 35 | static int __devinit omap_ocp2scp_probe(struct platform_device *pdev) | |
| 36 | { | |
| 37 | int ret; | |
| 38 | struct device_node *np = pdev->dev.of_node; | |
| 39 | ||
| 40 | if (np) { | |
| 41 | ret = of_platform_populate(np, NULL, NULL, &pdev->dev); | |
| 42 | if (ret) { | |
| 43 | dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n"); | |
| 44 | goto err0; | |
| 45 | } | |
| 46 | } | |
| 47 | pm_runtime_enable(&pdev->dev); | |
| 48 | ||
| 49 | return 0; | |
| 50 | ||
| 51 | err0: | |
| 52 | device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices); | |
| 53 | ||
| 54 | return ret; | |
| 55 | } | |
| 56 | ||
| 57 | static int __devexit omap_ocp2scp_remove(struct platform_device *pdev) | |
| 58 | { | |
| 59 | pm_runtime_disable(&pdev->dev); | |
| 60 | device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices); | |
| 61 | ||
| 62 | return 0; | |
| 63 | } | |
| 64 | ||
| 65 | #ifdef CONFIG_OF | |
| 66 | static const struct of_device_id omap_ocp2scp_id_table[] = { | |
| 67 | { .compatible = "ti,omap-ocp2scp" }, | |
| 68 | {} | |
| 69 | }; | |
| 70 | MODULE_DEVICE_TABLE(of, omap_usb2_id_table); | |
| 71 | #endif | |
| 72 | ||
| 73 | static struct platform_driver omap_ocp2scp_driver = { | |
| 74 | .probe = omap_ocp2scp_probe, | |
| 75 | .remove = __devexit_p(omap_ocp2scp_remove), | |
| 76 | .driver = { | |
| 77 | .name = "omap-ocp2scp", | |
| 78 | .owner = THIS_MODULE, | |
| 79 | .of_match_table = of_match_ptr(omap_ocp2scp_id_table), | |
| 80 | }, | |
| 81 | }; | |
| 82 | ||
| 83 | module_platform_driver(omap_ocp2scp_driver); | |
| 84 | ||
| 85 | MODULE_ALIAS("platform: omap-ocp2scp"); | |
| 86 | MODULE_AUTHOR("Texas Instruments Inc."); | |
| 87 | MODULE_DESCRIPTION("OMAP OCP2SCP driver"); | |
| 88 | MODULE_LICENSE("GPL v2"); |