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device: property: add helpers to count items in string arrays

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Instead of doing the following:

    count = device_property_read_string_array(dev, propname, NULL, 0);

Let's provide inline helpers with hardcoded arguments for counting
strings in property arrays.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Bartosz Golaszewski 2020-09-09 10:54:24 +02:00
parent 8d4a85b6ab
commit 6b6ff4acb3
1 changed files with 13 additions and 0 deletions
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13
include/linux/property.h
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@ -170,6 +170,12 @@ static inline int device_property_count_u64(struct device *dev, const char *prop
return device_property_read_u64_array(dev, propname, NULL, 0);
}
static inline int device_property_string_array_count(struct device *dev,
const char *propname)
{
return device_property_read_string_array(dev, propname, NULL, 0);
}
static inline bool fwnode_property_read_bool(const struct fwnode_handle *fwnode,
const char *propname)
{
@ -224,6 +230,13 @@ static inline int fwnode_property_count_u64(const struct fwnode_handle *fwnode,
return fwnode_property_read_u64_array(fwnode, propname, NULL, 0);
}
static inline int
fwnode_property_string_array_count(const struct fwnode_handle *fwnode,
const char *propname)
{
return fwnode_property_read_string_array(fwnode, propname, NULL, 0);
}
struct software_node;
/**