arm-smmu driver uses of_parse_phandle_with_args when parsing DT
information to determine stream IDs for a master device.
Thus the number of stream IDs per master device is bound by
MAX_PHANDLE_ARGS.

To support Calxeda ECX-2000 hardware arm-smmu driver requires a
slightly higher value for MAX_PHANDLE_ARGS as this hardware has 10
stream IDs for one master device.

Increasing it to 16 seems a reasonable choice.

Cc: Grant Likely <redacted>
Cc: Rob Herring <redacted>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Andreas Herrmann <herrmann.der.user-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
Acked-by: Rob Herring <redacted>
Signed-off-by: Andreas Herrmann <andreas.herrmann-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
---
  include/linux/of.h |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/of.h b/include/linux/of.h
index 276c546..24e1b28 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h

@@ -67,7 +67,7 @@ struct device_node {
  #endif
  };

-#define MAX_PHANDLE_ARGS 8
+#define MAX_PHANDLE_ARGS 16