forked from Minki/linux
e6d30ab1e7
All the callers of irq_create_of_mapping() pass the contents of a struct of_phandle_args structure to the function. Since all the callers already have an of_phandle_args pointer, why not pass it directly to irq_create_of_mapping()? Signed-off-by: Grant Likely <grant.likely@linaro.org> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Tony Lindgren <tony@atomide.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
|
|
* Copyright (C) 2001 Dave Engebretsen IBM Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <asm/prom.h>
|
|
|
|
#include "pseries.h"
|
|
|
|
void request_event_sources_irqs(struct device_node *np,
|
|
irq_handler_t handler,
|
|
const char *name)
|
|
{
|
|
int i, index, count = 0;
|
|
struct of_phandle_args oirq;
|
|
const u32 *opicprop;
|
|
unsigned int opicplen;
|
|
unsigned int virqs[16];
|
|
|
|
/* Check for obsolete "open-pic-interrupt" property. If present, then
|
|
* map those interrupts using the default interrupt host and default
|
|
* trigger
|
|
*/
|
|
opicprop = of_get_property(np, "open-pic-interrupt", &opicplen);
|
|
if (opicprop) {
|
|
opicplen /= sizeof(u32);
|
|
for (i = 0; i < opicplen; i++) {
|
|
if (count > 15)
|
|
break;
|
|
virqs[count] = irq_create_mapping(NULL, *(opicprop++));
|
|
if (virqs[count] == NO_IRQ) {
|
|
pr_err("event-sources: Unable to allocate "
|
|
"interrupt number for %s\n",
|
|
np->full_name);
|
|
WARN_ON(1);
|
|
}
|
|
else
|
|
count++;
|
|
|
|
}
|
|
}
|
|
/* Else use normal interrupt tree parsing */
|
|
else {
|
|
/* First try to do a proper OF tree parsing */
|
|
for (index = 0; of_irq_parse_one(np, index, &oirq) == 0;
|
|
index++) {
|
|
if (count > 15)
|
|
break;
|
|
virqs[count] = irq_create_of_mapping(&oirq);
|
|
if (virqs[count] == NO_IRQ) {
|
|
pr_err("event-sources: Unable to allocate "
|
|
"interrupt number for %s\n",
|
|
np->full_name);
|
|
WARN_ON(1);
|
|
}
|
|
else
|
|
count++;
|
|
}
|
|
}
|
|
|
|
/* Now request them */
|
|
for (i = 0; i < count; i++) {
|
|
if (request_irq(virqs[i], handler, 0, name, NULL)) {
|
|
pr_err("event-sources: Unable to request interrupt "
|
|
"%d for %s\n", virqs[i], np->full_name);
|
|
WARN_ON(1);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|