[POWERPC] Add an optional device_node pointer to the irq_host

The majority of irq_host implementations (3 out of 4) are associated
with a device_node, and need to stash it somewhere. Rather than having
it somewhere different for each host, add an optional device_node pointer
to the irq_host structure.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 5 deletions

diff --git a/arch/powerpc/sysdev/mv64x60_pic.c b/arch/powerpc/sysdev/mv64x60_pic.c
index 01d316287772..a145bfd003c7 100644
--- a/arch/powerpc/sysdev/mv64x60_pic.c
+++ b/arch/powerpc/sysdev/mv64x60_pic.c
@@ -204,7 +204,7 @@ static struct irq_chip mv64x60_chip_gpp = {
 
 static int mv64x60_host_match(struct irq_host *h, struct device_node *np)
 {
-        return mv64x60_irq_host->host_data == np;
+        return h->of_node == np;
 }
 
 static struct irq_chip *mv64x60_chips[] = {
@@ -253,14 +253,12 @@ void __init mv64x60_init_irq(void)
         np = of_find_compatible_node(NULL, NULL, "marvell,mv64x60-pic");
         reg = of_get_property(np, "reg", &size);
         paddr = of_translate_address(np, reg);
-        of_node_put(np);
         mv64x60_irq_reg_base = ioremap(paddr, reg[1]);
 
-        mv64x60_irq_host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, MV64x60_NUM_IRQS,
+        mv64x60_irq_host = irq_alloc_host(np, IRQ_HOST_MAP_LINEAR,
+                                          MV64x60_NUM_IRQS,
                                           &mv64x60_host_ops, MV64x60_NUM_IRQS);
 
-        mv64x60_irq_host->host_data = np;
-
         spin_lock_irqsave(&mv64x60_lock, flags);
         out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_MASK,
                  mv64x60_cached_gpp_mask);