kernel-ark/arch/arm/plat-mxc/irq-common.c
Hui Wang 3439a397a8 ARM i.MX avic: convert to use generic irq chip
Convert i.MX avic irq handler to use generic irq chip. This not only
provides a cleanup implementation of irq chip handler, but also
implements suspend/resume interface with the help of generic irq chip
interface.

Change mxc_irq_chip to a new structure mxc_extra_irq to handle fiq
and priority functions.

Signed-off-by: Hui Wang <jason77.wang@gmail.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-09-23 08:32:14 +02:00

61 lines
1.5 KiB
C

/*
* Copyright (C) BitBox Ltd 2010
*
* 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/module.h>
#include <linux/irq.h>
#include "irq-common.h"
int imx_irq_set_priority(unsigned char irq, unsigned char prio)
{
struct irq_chip_generic *gc;
struct mxc_extra_irq *exirq;
int ret;
ret = -ENOSYS;
gc = irq_get_chip_data(irq);
if (gc && gc->private) {
exirq = gc->private;
if (exirq->set_priority)
ret = exirq->set_priority(irq, prio);
}
return ret;
}
EXPORT_SYMBOL(imx_irq_set_priority);
int mxc_set_irq_fiq(unsigned int irq, unsigned int type)
{
struct irq_chip_generic *gc;
struct mxc_extra_irq *exirq;
int ret;
ret = -ENOSYS;
gc = irq_get_chip_data(irq);
if (gc && gc->private) {
exirq = gc->private;
if (exirq->set_irq_fiq)
ret = exirq->set_irq_fiq(irq, type);
}
return ret;
}
EXPORT_SYMBOL(mxc_set_irq_fiq);