Re: RT_PREEMPT problem with cascaded irqchip

Thomas Gleixner
2006-05-30T11:22:04Z

On Tue, 2006-05-30 at 12:26 +0200, Yann.LEPROVOST@wavecom.fr wrote:
> Of course, here is the file arch/arm/mach-at91rm9200/gpio.c with my
> modified gpio_irq_handler.

> for (i = 0; i < 32; i++, pin++) {
> set_irq_chip(pin, &gpio_irqchip);
> printk(KERN_ERR "GPIO SET_IRQ_CHIP\n");
> set_irq_handler(pin, do_simple_IRQ);

-----------------------------------------^^^^^^^^^^^^^^^

Care to look into the implementation of this ? As the name says, its
simple. It does no ack/mask whatever. Use the level resp. the edge
handler instead.

tglx