[PATCH v2 07/11] irqchip/atmel-aic: Simplify with of_machine_get_match_data()

[Krzysztof Kozlowski]

Replace open-coded getting root OF node, matching against it and getting
the match data with new of_machine_get_match_data() helper.

Acked-by: Nicolas Ferre <nicolas.ferre at microchip.com>
Acked-by: Thomas Gleixner <tglx at linutronix.de>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
---

Depends on the first OF patch.
---
 drivers/irqchip/irq-atmel-aic-common.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/irqchip/irq-atmel-aic-common.c b/drivers/irqchip/irq-atmel-aic-common.c
index 3cad30a40c19..e68853815c7a 100644
--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -187,20 +187,11 @@ void __init aic_common_rtt_irq_fixup(void)
 
 static void __init aic_common_irq_fixup(const struct of_device_id *matches)
 {
-	struct device_node *root = of_find_node_by_path("/");
-	const struct of_device_id *match;
+	void (*fixup)(void);
 
-	if (!root)
-		return;
-
-	match = of_match_node(matches, root);
-
-	if (match) {
-		void (*fixup)(void) = match->data;
+	fixup = of_machine_get_match_data(matches);
+	if (fixup)
 		fixup();
-	}
-
-	of_node_put(root);
 }
 
 struct irq_domain *__init aic_common_of_init(struct device_node *node,

-- 
2.48.1