irqchip: exynos: pass irq_base from platform

The platform code knows the IRQ base, while the irqchip driver
should really not. This is a littly hacky because we still
hardwire the IRQ base to 160 for the combiner in the DT case,
when we should really use -1. Removing that line will cause
a linear IRQ domain to be use, as we should.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 368fa4b..9208079 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -447,7 +447,8 @@
 #endif
 
 	if (!of_have_populated_dt())
-		combiner_init(S5P_VA_COMBINER_BASE, NULL, max_combiner_nr());
+		combiner_init(S5P_VA_COMBINER_BASE, NULL,
+			      max_combiner_nr(), COMBINER_IRQ(0, 0));
 
 	/*
 	 * The parameters of s5p_init_irq() are for VIC init.