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[v2,1/3] device: property: add helpers to count items in string arrays

Message ID 20200909085426.19862-2-brgl@bgdev.pl
State New
Headers show
Series gpiolib: generalize GPIO line names property | expand

Commit Message

Bartosz Golaszewski Sept. 9, 2020, 8:54 a.m. UTC
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

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>
---
 include/linux/property.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)
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Patch

diff --git a/include/linux/property.h b/include/linux/property.h
index 9f805c442819..75c178055bc9 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -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;
 
 /**