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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2008-02-24 14:26:03 +0100
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-07-02 11:05:01 +0200
commitaa8e87ca619a3d1944874e85d74fda90607c73b9 (patch)
tree9c80fc66f16e665a4247db402210e043b09b7bee /arch
parentb83d6ee17588f1a4fbfc8ef0451b0900a5ef5950 (diff)
avr32: Add system device for the internal interrupt controller (intc)
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/avr32/mach-at32ap/intc.c28
1 files changed, 25 insertions, 3 deletions
diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c
index 097cf4e8405..644a3fb8c16 100644
--- a/arch/avr32/mach-at32ap/intc.c
+++ b/arch/avr32/mach-at32ap/intc.c
@@ -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 @@ fail:
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);