irqchip: irq-armada-370-xp: Do the set_smp_cross_call() in the driver

Instead of having the SoC code in arch/arm/mach-mvebu/platsmp.c do the
set_smp_cross_call() to register the IPI-triggering function, it makes
more sense to do exactly what the GIC driver is doing: let the irqchip
driver do it. This way, it avoids having to expose the
armada_mpic_send_doorbell() function between the irqchip driver and
the SoC code.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397483648-26611-5-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 41be897df8d5..727566216e24 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -315,7 +315,8 @@ static int armada_370_xp_mpic_irq_map(struct irq_domain *h,
 }
 
 #ifdef CONFIG_SMP
-void armada_mpic_send_doorbell(const struct cpumask *mask, unsigned int irq)
+static void armada_mpic_send_doorbell(const struct cpumask *mask,
+                                      unsigned int irq)
 {
         int cpu;
         unsigned long map = 0;
@@ -511,6 +512,9 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
         if (parent_irq <= 0) {
                 irq_set_default_host(armada_370_xp_mpic_domain);
                 set_handle_irq(armada_370_xp_handle_irq);
+#ifdef CONFIG_SMP
+                set_smp_cross_call(armada_mpic_send_doorbell);
+#endif
         } else {
                 irq_set_chained_handler(parent_irq,
                                         armada_370_xp_mpic_handle_cascade_irq);