1 /* 2 * Copyright (C) 2001 Dave Engebretsen IBM Corporation 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 17 */ 18 19 #include <asm/prom.h> 20 21 #include "pseries.h" 22 23 void request_event_sources_irqs(struct device_node *np, 24 irq_handler_t handler, 25 const char *name) 26 { 27 int i, index, count = 0; 28 struct of_phandle_args oirq; 29 unsigned int virqs[16]; 30 31 /* First try to do a proper OF tree parsing */ 32 for (index = 0; of_irq_parse_one(np, index, &oirq) == 0; 33 index++) { 34 if (count > 15) 35 break; 36 virqs[count] = irq_create_of_mapping(&oirq); 37 if (!virqs[count]) { 38 pr_err("event-sources: Unable to allocate " 39 "interrupt number for %pOF\n", 40 np); 41 WARN_ON(1); 42 } else { 43 count++; 44 } 45 } 46 47 /* Now request them */ 48 for (i = 0; i < count; i++) { 49 if (request_irq(virqs[i], handler, 0, name, NULL)) { 50 pr_err("event-sources: Unable to request interrupt " 51 "%d for %pOF\n", virqs[i], np); 52 WARN_ON(1); 53 return; 54 } 55 } 56 } 57 58