linux-kernel - [PATCH v2] ARM: SAMSUNG: S5P: If detected device tree skip irq init

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Message-id: <1380038363-487-1-git-send-email-m.krawczuk@partner.samsung.com>
Date:	Tue, 24 Sep 2013 17:59:23 +0200
From:	Mateusz Krawczuk <m.krawczuk@...tner.samsung.com>
To:	kgene.kim@...sung.com
Cc:	ben-linux@...ff.org, linux@....linux.org.uk,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	t.figa@...sung.com, s.nawrocki@...sung.com,
	m.szyprowski@...sung.com, b.zolnierkie@...sung.com,
	t.stanislaws@...sung.com,
	Mateusz Krawczuk <m.krawczuk@...tner.samsung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: [PATCH v2] ARM: SAMSUNG: S5P: If detected device tree skip irq init

It prevents from executing things already handled by pinctrl-exynos driver,
when device tree is available.

Signed-off-by: Mateusz Krawczuk <m.krawczuk@...tner.samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
---
 arch/arm/plat-samsung/s5p-irq-eint.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/plat-samsung/s5p-irq-eint.c b/arch/arm/plat-samsung/s5p-irq-eint.c
index faa6516..ebee4dc 100644
--- a/arch/arm/plat-samsung/s5p-irq-eint.c
+++ b/arch/arm/plat-samsung/s5p-irq-eint.c
@@ -16,6 +16,7 @@
 #include <linux/device.h>
 #include <linux/gpio.h>
 #include <linux/irqchip/arm-vic.h>
+#include <linux/of.h>
 
 #include <plat/regs-irqtype.h>
 
@@ -202,6 +203,9 @@ static int __init s5p_init_irq_eint(void)
 {
 	int irq;
 
+	if (of_have_populated_dt())
+		return -ENODEV;
+
 	for (irq = IRQ_EINT(0); irq <= IRQ_EINT(15); irq++)
 		irq_set_chip(irq, &s5p_irq_vic_eint);
 
-- 
1.8.1.2

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