irqchip/gicv2/3: add gic_retrigger

[firefly-linux-kernel-4.4.55.git] / drivers / irqchip / irq-gic.c

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 7851e786af99b7f35bf8f4a9cf91cf4e6f18ff7a..d422377f574300192c8277eeec05672b0871d15c 100644 (file)
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -205,6 +205,15 @@ static void gic_unmask_irq(struct irq_data *d)
        gic_poke_irq(d, GIC_DIST_ENABLE_SET);
 }
 
+#ifdef CONFIG_ARCH_ROCKCHIP
+static int gic_retrigger(struct irq_data *d)
+{
+       gic_poke_irq(d, GIC_DIST_PENDING_SET);
+       /* the genirq layer expects 0 if we can't retrigger in hardware */
+       return 0;
+}
+#endif
+
 static void gic_eoi_irq(struct irq_data *d)
 {
        writel_relaxed(gic_irq(d), gic_cpu_base(d) + GIC_CPU_EOI);
@@ -396,6 +405,9 @@ static struct irq_chip gic_chip = {
        .irq_unmask             = gic_unmask_irq,
        .irq_eoi                = gic_eoi_irq,
        .irq_set_type           = gic_set_type,
+#ifdef CONFIG_ARCH_ROCKCHIP
+       .irq_retrigger          = gic_retrigger,
+#endif
 #ifdef CONFIG_SMP
        .irq_set_affinity       = gic_set_affinity,
 #endif
@@ -412,6 +424,9 @@ static struct irq_chip gic_eoimode1_chip = {
        .irq_unmask             = gic_unmask_irq,
        .irq_eoi                = gic_eoimode1_eoi_irq,
        .irq_set_type           = gic_set_type,
+#ifdef CONFIG_ARCH_ROCKCHIP
+       .irq_retrigger          = gic_retrigger,
+#endif
 #ifdef CONFIG_SMP
        .irq_set_affinity       = gic_set_affinity,
 #endif