ARM: tegra: irq: Add tegra_eoi

Implement irq_eoi to allow the GIC irq chip flow controller to
be changed to fasteoi.

Signed-off-by: Colin Cross <ccross@android.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index da1749108c7..4956c3cea73 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -95,6 +95,14 @@ static void tegra_ack(struct irq_data *d)
         tegra_irq_write_mask(d->irq, ICTLR_CPU_IEP_FIR_CLR);
 }
 
+static void tegra_eoi(struct irq_data *d)
+{
+        if (d->irq < FIRST_LEGACY_IRQ)
+                return;
+
+        tegra_irq_write_mask(d->irq, ICTLR_CPU_IEP_FIR_CLR);
+}
+
 static int tegra_retrigger(struct irq_data *d)
 {
         if (d->irq < FIRST_LEGACY_IRQ)
@@ -116,6 +124,7 @@ void __init tegra_init_irq(void)
         }
 
         gic_arch_extn.irq_ack = tegra_ack;
+        gic_arch_extn.irq_eoi = tegra_eoi;
         gic_arch_extn.irq_mask = tegra_mask;
         gic_arch_extn.irq_unmask = tegra_unmask;
         gic_arch_extn.irq_retrigger = tegra_retrigger;