From: Andreas Herrmann <andreas.herrmann@calxeda.com>
Date: Fri, 17 Jan 2014 11:08:30 +0000 (+0100)
Subject: of: Increase MAX_PHANDLE_ARGS
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b66548e2a9baf65ccebeb3750f0ab9ddbef500f6;p=deliverable%2Flinux.git

of: Increase MAX_PHANDLE_ARGS

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 <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: Andreas Herrmann <herrmann.der.user@googlemail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---

diff --git a/include/linux/of.h b/include/linux/of.h
index 3d0593943f47..0ea516ed22c0 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
 struct of_phandle_args {
 	struct device_node *np;
 	int args_count;