Commit b66548e2 authored Jan 17, 2014 by Andreas Herrmann Committed by Grant Likely Feb 05, 2014

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>

parent 02ed594e

include/linux/of.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

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