+
+#ifdef CONFIG_PM
+static unsigned long saved_icmr[2];
+
+static int pxa_irq_suspend(struct sys_device *dev, pm_message_t state)
+{
+ switch (dev->id) {
+ case 0:
+ saved_icmr[0] = ICMR;
+ ICMR = 0;
+ break;
+#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
+ case 1:
+ saved_icmr[1] = ICMR2;
+ ICMR2 = 0;
+ break;
+#endif
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int pxa_irq_resume(struct sys_device *dev)
+{
+ switch (dev->id) {
+ case 0:
+ ICMR = saved_icmr[0];
+ ICLR = 0;
+ ICCR = 1;
+ break;
+#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
+ case 1:
+ ICMR2 = saved_icmr[1];
+ ICLR2 = 0;
+ break;
+#endif
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+#else
+#define pxa_irq_suspend NULL
+#define pxa_irq_resume NULL
+#endif
+
+struct sysdev_class pxa_irq_sysclass = {
+ .name = "irq",
+ .suspend = pxa_irq_suspend,
+ .resume = pxa_irq_resume,
+};
+
+static int __init pxa_irq_init(void)
+{
+ return sysdev_class_register(&pxa_irq_sysclass);
+}
+
+core_initcall(pxa_irq_init);