dt: add 'const' for of_property_read_string parameter **out_string (f09bc831) · Commits · 戴 / test

The existing dt codes usually call of_get_property to get a string property and save it as a 'const char *'. The patch adds'const' for of_property_read_string parameter **out_string to make the converting of existing code a little easier. Signed-off-by:

Shawn Guo <shawn.guo@linaro.org> Signed-off-by:

Grant Likely <grant.likely@secretlab.ca>

drivers/of/base.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -639,7 +639,7 @@ EXPORT_SYMBOL_GPL(of_property_read_u32);
		* The out_string pointer is modified only if a valid string can be decoded.
		*/
		int of_property_read_string(struct device_node np, char propname,
		char **out_string)
		const char **out_string)
		{
		struct property *prop = of_find_property(np, propname, NULL);
		if (!prop)

include/linux/of.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -198,7 +198,7 @@ extern struct property of_find_property(const struct device_node np,
		extern int of_property_read_u32(struct device_node np, char propname,
		u32 *out_value);
		extern int of_property_read_string(struct device_node np, char propname,
		char **out_string);
		const char **out_string);
		extern int of_device_is_compatible(const struct device_node *device,
		const char *);
		extern int of_device_is_available(const struct device_node *device);

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