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