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of: Add device_type access helper functions 

In preparation to remove direct access to device_node.type, add
of_node_is_type() and of_node_get_device_type() helpers to check and
retrieve the device type.

Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Rob Herring 2018-08-28 15:10:48 -05:00
parent f42b0e18f2
commit 0413bedabc
1 changed files with 12 additions and 0 deletions
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12
include/linux/of.h
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@ -988,6 +988,18 @@ static inline struct device_node *of_find_matching_node(
return of_find_matching_node_and_match(from, matches, NULL);
}
static inline const char *of_node_get_device_type(const struct device_node *np)
{
return of_get_property(np, "type", NULL);
}
static inline bool of_node_is_type(const struct device_node *np, const char *type)
{
const char *match = of_node_get_device_type(np);
return np && match && type && !strcmp(match, type);
}
/**
* of_property_count_u8_elems - Count the number of u8 elements in a property
*