irqchip/gic: Remove redundant gic_set_irqchip_flags

Now that the GIC chip implementation enables IRQCHIP_SKIP_SET_WAKE and
IRQCHIP_MASK_ON_SUSPEND by default, the platforms requiring them need
not override the irqchip flags as before.

This patch removes all the users of gic_set_irqchip_flags and the
function itself.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1436971109-20189-2-git-send-email-sudeep.holla@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/arm/mach-shmobile/intc-sh73a0.c

@@ -313,7 +313,6 @@ void __init sh73a0_init_irq(void)
 	void __iomem *gic_cpu_base = IOMEM(0xf0000100);
 	void __iomem *intevtsa = ioremap_nocache(0xffd20100, PAGE_SIZE);
 
-	gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE);
 	gic_init(0, 29, gic_dist_base, gic_cpu_base);
 
 	register_intc_controller(&intcs_desc);

arch/arm/mach-shmobile/setup-r8a7779.c

@@ -719,7 +719,6 @@ void __init r8a7779_init_irq_dt(void)
 	void __iomem *gic_dist_base = ioremap_nocache(0xf0001000, 0x1000);
 	void __iomem *gic_cpu_base = ioremap_nocache(0xf0000100, 0x1000);
 #endif
-	gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE);
 
 #ifdef CONFIG_ARCH_SHMOBILE_LEGACY
 	gic_init(0, 29, gic_dist_base, gic_cpu_base);

arch/arm/mach-ux500/cpu.c

@@ -56,7 +56,6 @@ void __init ux500_init_irq(void)
 	struct device_node *np;
 	struct resource r;
 
-	gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND);
 	irqchip_init();
 	np = of_find_compatible_node(NULL, NULL, "stericsson,db8500-prcmu");
 	of_address_to_resource(np, 0, &r);

arch/arm/mach-zynq/common.c

@@ -186,7 +186,6 @@ static void __init zynq_map_io(void)
 
 static void __init zynq_irq_init(void)
 {
-	gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND);
 	irqchip_init();
 }
 

drivers/irqchip/irq-gic.c

@@ -881,11 +881,6 @@ static const struct irq_domain_ops gic_irq_domain_ops = {
 	.xlate = gic_irq_domain_xlate,
 };
 
-void gic_set_irqchip_flags(unsigned long flags)
-{
-	gic_chip.flags |= flags;
-}
-
 void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 			   void __iomem *dist_base, void __iomem *cpu_base,
 			   u32 percpu_offset, struct device_node *node)

include/linux/irqchip/arm-gic.h

@@ -95,7 +95,6 @@
 
 struct device_node;
 
-void gic_set_irqchip_flags(unsigned long flags);
 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
 		    u32 offset, struct device_node *);
 void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);