1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * linux/drivers/misc/xillybus_of.c 4 * 5 * Copyright 2011 Xillybus Ltd, http://xillybus.com 6 * 7 * Driver for the Xillybus FPGA/host framework using Open Firmware. 8 */ 9 10 #include <linux/module.h> 11 #include <linux/device.h> 12 #include <linux/slab.h> 13 #include <linux/platform_device.h> 14 #include <linux/of.h> 15 #include <linux/err.h> 16 #include "xillybus.h" 17 18 MODULE_DESCRIPTION("Xillybus driver for Open Firmware"); 19 MODULE_AUTHOR("Eli Billauer, Xillybus Ltd."); 20 MODULE_ALIAS("xillybus_of"); 21 MODULE_LICENSE("GPL v2"); 22 23 static const char xillyname[] = "xillybus_of"; 24 25 /* Match table for of_platform binding */ 26 static const struct of_device_id xillybus_of_match[] = { 27 { .compatible = "xillybus,xillybus-1.00.a", }, 28 { .compatible = "xlnx,xillybus-1.00.a", }, /* Deprecated */ 29 {} 30 }; 31 32 MODULE_DEVICE_TABLE(of, xillybus_of_match); 33 34 static int xilly_drv_probe(struct platform_device *op) 35 { 36 struct device *dev = &op->dev; 37 struct xilly_endpoint *endpoint; 38 int rc; 39 int irq; 40 41 endpoint = xillybus_init_endpoint(dev); 42 43 if (!endpoint) 44 return -ENOMEM; 45 46 dev_set_drvdata(dev, endpoint); 47 48 endpoint->owner = THIS_MODULE; 49 50 endpoint->registers = devm_platform_ioremap_resource(op, 0); 51 if (IS_ERR(endpoint->registers)) 52 return PTR_ERR(endpoint->registers); 53 54 irq = platform_get_irq(op, 0); 55 56 rc = devm_request_irq(dev, irq, xillybus_isr, 0, xillyname, endpoint); 57 58 if (rc) { 59 dev_err(endpoint->dev, 60 "Failed to register IRQ handler. Aborting.\n"); 61 return -ENODEV; 62 } 63 64 return xillybus_endpoint_discovery(endpoint); 65 } 66 67 static void xilly_drv_remove(struct platform_device *op) 68 { 69 struct device *dev = &op->dev; 70 struct xilly_endpoint *endpoint = dev_get_drvdata(dev); 71 72 xillybus_endpoint_remove(endpoint); 73 } 74 75 static struct platform_driver xillybus_platform_driver = { 76 .probe = xilly_drv_probe, 77 .remove_new = xilly_drv_remove, 78 .driver = { 79 .name = xillyname, 80 .of_match_table = xillybus_of_match, 81 }, 82 }; 83 84 module_platform_driver(xillybus_platform_driver); 85