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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>
hifive-unleashed-5.1
Andreas Herrmann 2014-01-17 12:08:30 +01:00 committed by Grant Likely
parent 02ed594e71
commit b66548e2a9
1 changed files with 1 additions and 1 deletions
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2
include/linux/of.h
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@ -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;