MIPS: JZ4740: probe interrupt controller via DT
Declare the JZ4740 interrupt controller for probe via DT using the
standard irqchip_init function, and make use of that function to probe
the controller by adding the appropriate node to the JZ4740 dtsi.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: devicetree@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Brian Norris <computersforpeace@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/10135/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/jz4740/irq.c b/arch/mips/jz4740/irq.c
index bac1f52..43e000a 100644
--- a/arch/mips/jz4740/irq.c
+++ b/arch/mips/jz4740/irq.c
@@ -18,6 +18,7 @@
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
+#include <linux/of_irq.h>
#include <linux/timex.h>
#include <linux/slab.h>
#include <linux/delay.h>
@@ -32,6 +33,8 @@
#include "irq.h"
+#include "../../drivers/irqchip/irqchip.h"
+
static void __iomem *jz_intc_base;
#define JZ_REG_INTC_STATUS 0x00
@@ -77,7 +80,8 @@
.name = "JZ4740 cascade interrupt",
};
-void __init jz4740_intc_init(void)
+static int __init jz4740_intc_of_init(struct device_node *node,
+ struct device_node *parent)
{
struct irq_chip_generic *gc;
struct irq_chip_type *ct;
@@ -105,7 +109,9 @@
irq_setup_generic_chip(gc, IRQ_MSK(32), 0, 0, IRQ_NOPROBE | IRQ_LEVEL);
setup_irq(2, &jz4740_cascade_action);
+ return 0;
}
+IRQCHIP_DECLARE(jz4740_intc, "ingenic,jz4740-intc", jz4740_intc_of_init);
#ifdef CONFIG_DEBUG_FS