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avr32: Add system device for the internal interrupt controller (intc)

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This makes the intc show up in sysfs (probably not very useful), and
allows us to easily add suspend/resume support later.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
This commit is contained in:
Haavard Skinnemoen 2008-02-24 14:26:03 +01:00 committed by Haavard Skinnemoen
parent b83d6ee175
commit aa8e87ca61
1 changed files with 25 additions and 3 deletions
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28
arch/avr32/mach-at32ap/intc.c
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2006 Atmel Corporation
* Copyright (C) 2006, 2008 Atmel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -12,14 +12,16 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <asm/io.h>
#include "intc.h"
struct intc {
void __iomem *regs;
struct irq_chip chip;
void __iomem *regs;
struct irq_chip chip;
struct sys_device sysdev;
};
extern struct platform_device at32_intc0_device;
@ -136,6 +138,26 @@ void __init init_IRQ(void)
panic("Interrupt controller initialization failed!\n");
}
static struct sysdev_class intc_class = {
.name = "intc",
};
static int __init intc_init_sysdev(void)
{
int ret;
ret = sysdev_class_register(&intc_class);
if (ret)
return ret;
intc0.sysdev.id = 0;
intc0.sysdev.cls = &intc_class;
ret = sysdev_register(&intc0.sysdev);
return ret;
}
device_initcall(intc_init_sysdev);
unsigned long intc_get_pending(unsigned int group)
{
return intc_readl(&intc0, INTREQ0 + 4 * group);