[PATCH v1 1/2] of: irq: Ignore disabled intc's when searching map

[Peter Crosthwaite]

When searching the interrupt map, if a matched parent is disabled, just
ignore it and move on with the search.

This allows for specifying connection of a single device IRQ to
multiple interrupt controllers via the interrupt map schema. This change
allows for selection of the active interrupt controller via the already
existing status = "disabled" mechanism.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xxxxxxxxxx>
Acked-by: Michal Simek <michal.simek@xxxxxxxxxx>
---
 drivers/of/irq.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 786b0b4..22e414b 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -217,6 +217,9 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 				goto fail;
 			}
 
+			if (!of_device_is_available(newpar))
+				match = 0;
+
 			/* Get #interrupt-cells and #address-cells of new
 			 * parent
 			 */
-- 
1.8.4.4

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