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"); 89