of/irq: remove references to NO_IRQ in drivers/of/platform.c

Instead of referencing NO_IRQ in platform.c, define some helper functions
in irq.c to call instead from platform.c.  Keep NO_IRQ usage local to
irq.c, and define NO_IRQ if not defined in headers.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 3 insertions, 7 deletions

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index bb72223c22ae..30726c8b0693 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -584,14 +584,13 @@ struct platform_device *of_device_alloc(struct device_node *np,
                                   struct device *parent)
 {
         struct platform_device *dev;
-        int rc, i, num_reg = 0, num_irq = 0;
+        int rc, i, num_reg = 0, num_irq;
         struct resource *res, temp_res;
 
         /* First count how many resources are needed */
         while (of_address_to_resource(np, num_reg, &temp_res) == 0)
                 num_reg++;
-        while (of_irq_to_resource(np, num_irq, &temp_res) != NO_IRQ)
-                num_irq++;
+        num_irq = of_irq_count(np);
 
         /* Allocate memory for both the struct device and the resource table */
         dev = kzalloc(sizeof(*dev) + (sizeof(*res) * (num_reg + num_irq)),
@@ -608,10 +607,7 @@ struct platform_device *of_device_alloc(struct device_node *np,
                         rc = of_address_to_resource(np, i, res);
                         WARN_ON(rc);
                 }
-                for (i = 0; i < num_irq; i++, res++) {
-                        rc = of_irq_to_resource(np, i, res);
-                        WARN_ON(rc == NO_IRQ);
-                }
+                WARN_ON(of_irq_to_resource_table(np, res, num_irq) != num_irq);
         }
 
         dev->dev.of_node = of_node_get(np);