Commit e91fd6dd authored by Martin Blumenstingl's avatar Martin Blumenstingl Committed by Thomas Bogendoerfer
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MIPS: lantiq: irq: register the interrupt controllers with irqchip_init 



Add support for more interrupt controllers by switching from
of_irq_init() to irqchip_init() in Lantiq's arch_init_irq(). This
requires switching the ICU interrupt controller to use
IRQCHIP_DECLARE(), like a real irqchip driver would do.

This is needed for future changes when new irqchip drivers are
implemented:
- a dedicated driver for the EIU interrupt controller
- a driver for the MSI PIC (Programmable Interrupt Controller) found on
  VRX200 and newer SoCs
- ..or any other driver which uses IRQCHIP_DECLARE

Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
parent 6b5ea5b7

arch/mips/lantiq/irq.c

+3 −5
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/interrupt.h>

#include <linux/ioport.h>

#include <linux/sched.h>

#include <linux/irqchip.h>

#include <linux/irqdomain.h>

#include <linux/of_platform.h>

#include <linux/of_address.h>
@@ -422,12 +423,9 @@ unsigned int get_c0_compare_int(void) 
	return CP0_LEGACY_COMPARE_IRQ;

}



static const struct of_device_id of_irq_ids[] __initconst = {

	{ .compatible = "lantiq,icu", .data = icu_of_init },

	{},

};

IRQCHIP_DECLARE(lantiq_icu, "lantiq,icu", icu_of_init);



void __init arch_init_irq(void)

{

	of_irq_init(of_irq_ids);

	irqchip_init();

}