static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
{
unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
do {
/* clear our parent irq */
desc->irq_data.chip->irq_ack(&desc->irq_data);
if (likely(pending)) {
irq = LUBBOCK_IRQ(0) + __ffs(pending);
ipipe_handle_demuxed_irq(irq);
}
pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
} while (pending);
}
static void pcm990_irq_handler(unsigned int irq, struct irq_desc *desc)
{
unsigned long pending = (~PCM990_INTSETCLR) & pcm990_irq_enabled;
do {
/* clear our parent IRQ */
desc->irq_data.chip->irq_ack(&desc->irq_data);
if (likely(pending)) {
irq = PCM027_IRQ(0) + __ffs(pending);
ipipe_handle_demuxed_irq(irq);
}
pending = (~PCM990_INTSETCLR) & pcm990_irq_enabled;
} while (pending);
}
static void lpd270_irq_handler(unsigned int irq, struct irq_desc *desc)
{
unsigned long pending;
pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
do {
/* clear useless edge notification */
desc->irq_data.chip->irq_ack(&desc->irq_data);
if (likely(pending)) {
irq = LPD270_IRQ(0) + __ffs(pending);
ipipe_handle_demuxed_irq(irq);
pending = __raw_readw(LPD270_INT_STATUS) &
lpd270_irq_enabled;
}
} while (pending);
}
static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
{
unsigned pin;
struct irq_data *idata = irq_desc_get_irq_data(desc);
struct irq_chip *chip = irq_data_get_irq_chip(idata);
struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(idata);
void __iomem *pio = at91_gpio->regbase;
u32 isr;
/* temporarily mask (level sensitive) parent IRQ */
chip->irq_ack(idata);
for (;;) {
/* Reading ISR acks pending (edge triggered) GPIO interrupts.
* When there none are pending, we're finished unless we need
* to process multiple banks (like ID_PIOCDE on sam9263).
*/
isr = __raw_readl(pio + PIO_ISR) & __raw_readl(pio + PIO_IMR);
if (!isr) {
if (!at91_gpio->next)
break;
at91_gpio = at91_gpio->next;
pio = at91_gpio->regbase;
continue;
}
pin = at91_gpio->chip.base;
while (isr) {
if (isr & 1)
ipipe_handle_demuxed_irq(pin);
pin++;
isr >>= 1;
}
}
chip->irq_unmask(idata);
/* now it may re-trigger */
}
