irqchip: atmel-aic5: Add sama5d4 support

Add sama5d4 support to irq-atmel-aic5.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Link: https://lkml.kernel.org/r/1410536587-24607-2-git-send-email-alexandre.belloni@free-electrons.comSigned-off-by: Jason Cooper <jason@lakedaemon.net>

Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt

@@ -2,7 +2,7 @@
 
 Required properties:
 - compatible: Should be "atmel,<chip>-aic"
-  <chip> can be "at91rm9200" or "sama5d3"
+  <chip> can be "at91rm9200", "sama5d3" or "sama5d4"
 - interrupt-controller: Identifies the node as an interrupt controller.
 - interrupt-parent: For single AIC system, it is an empty property.
 - #interrupt-cells: The number of cells to define the interrupts. It should be 3.

drivers/irqchip/irq-atmel-aic5.c

@@ -297,6 +297,7 @@ static void __init sama5d3_aic_irq_fixup(struct device_node *root)
 
 static const struct of_device_id __initdata aic5_irq_fixups[] = {
 	{ .compatible = "atmel,sama5d3", .data = sama5d3_aic_irq_fixup },
+	{ .compatible = "atmel,sama5d4", .data = sama5d3_aic_irq_fixup },
 	{ /* sentinel */ },
 };
 
@@ -351,3 +352,12 @@ static int __init sama5d3_aic5_of_init(struct device_node *node,
 	return aic5_of_init(node, parent, NR_SAMA5D3_IRQS);
 }
 IRQCHIP_DECLARE(sama5d3_aic5, "atmel,sama5d3-aic", sama5d3_aic5_of_init);
+
+#define NR_SAMA5D4_IRQS		68
+
+static int __init sama5d4_aic5_of_init(struct device_node *node,
+				       struct device_node *parent)
+{
+	return aic5_of_init(node, parent, NR_SAMA5D4_IRQS);
+}
+IRQCHIP_DECLARE(sama5d4_aic5, "atmel,sama5d4-aic", sama5d4_aic5_of_init);