ARM: SAMSUNG: Do not register legacy timer interrupts on Exynos

This patch removes legacy PWM timer interrupt initialization from
exynos{4,5}_init_irq() functions, since it conflicts with internal
interrupt handling of the new PWM clocksource driver.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-exynos/common.c

@@ -456,13 +456,6 @@ void __init exynos4_init_irq(void)
 
 	if (!of_have_populated_dt())
 		combiner_init(S5P_VA_COMBINER_BASE, NULL);
-
-	/*
-	 * The parameters of s5p_init_irq() are for VIC init.
-	 * Theses parameters should be NULL and 0 because EXYNOS4
-	 * uses GIC instead of VIC.
-	 */
-	s5p_init_irq(NULL, 0);
 }
 
 void __init exynos5_init_irq(void)
@@ -470,14 +463,6 @@ void __init exynos5_init_irq(void)
 #ifdef CONFIG_OF
 	irqchip_init();
 #endif
-	/*
-	 * The parameters of s5p_init_irq() are for VIC init.
-	 * Theses parameters should be NULL and 0 because EXYNOS4
-	 * uses GIC instead of VIC.
-	 */
-	if (!of_machine_is_compatible("samsung,exynos5440"))
-		s5p_init_irq(NULL, 0);
-
 	gic_arch_extn.irq_set_wake = s3c_irq_wake;
 }
 

arch/arm/plat-samsung/Kconfig

@@ -101,9 +101,9 @@ config SAMSUNG_IRQ_VIC_TIMER
          Internal configuration to build the VIC timer interrupt code.
 
 config S5P_IRQ
-	def_bool (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS)
+	def_bool (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210)
 	help
-	  Support common interrup part for ARCH_S5P and ARCH_EXYNOS SoCs
+	  Support common interrupt part for ARCH_S5P SoCs
 
 config S5P_EXT_INT
 	bool