xtensa: add IRQ domains support
IRQ domains provide a mechanism for conversion of linux IRQ numbers to
hardware IRQ numbers and vice versus. It is used by OpenFirmware for
linking device tree objects to their respective interrupt controllers.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index 19b32a0..ffb4741 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -22,6 +22,7 @@
#include <linux/irq.h>
#include <linux/profile.h>
#include <linux/delay.h>
+#include <linux/irqdomain.h>
#include <asm/timex.h>
#include <asm/platform.h>
@@ -52,6 +53,7 @@
void __init time_init(void)
{
+ unsigned int irq;
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
printk("Calibrating CPU frequency ");
platform_calibrate_ccount();
@@ -62,7 +64,8 @@
/* Initialize the linux timer interrupt. */
- setup_irq(LINUX_TIMER_INT, &timer_irqaction);
+ irq = irq_create_mapping(NULL, LINUX_TIMER_INT);
+ setup_irq(irq, &timer_irqaction);
set_linux_timer(get_ccount() + CCOUNT_PER_JIFFY);
}