drivers/base/property.c

3  * property.c - Unified device property interface.
15 #include <linux/property.h>
36  * device_property_present - check if a property of a device is present
37  * @dev: Device whose property is being checked
38  * @propname: Name of the property
40  * Check if property @propname is present in the device firmware description.
42  * Return: true if property @propname is present. Otherwise, returns false.
51  * fwnode_property_present - check if a property of a firmware node is present
52  * @fwnode: Firmware node whose property to check
53  * @propname: Name of the property
55  * Return: true if property @propname is present. Otherwise, returns false.
74  * device_property_read_u8_array - return a u8 array property of a device
75  * @dev: Device to get the property of
76  * @propname: Name of the property
87  *         %0 if the property was found (success),
89  *	   %-ENODATA if the property does not have a value,
90  *	   %-EPROTO if the property is not an array of numbers,
91  *	   %-EOVERFLOW if the size of the property is not as expected.
102  * device_property_read_u16_array - return a u16 array property of a device
103  * @dev: Device to get the property of
104  * @propname: Name of the property
115  *         %0 if the property was found (success),
117  *	   %-ENODATA if the property does not have a value,
118  *	   %-EPROTO if the property is not an array of numbers,
119  *	   %-EOVERFLOW if the size of the property is not as expected.
130  * device_property_read_u32_array - return a u32 array property of a device
131  * @dev: Device to get the property of
132  * @propname: Name of the property
143  *         %0 if the property was found (success),
145  *	   %-ENODATA if the property does not have a value,
146  *	   %-EPROTO if the property is not an array of numbers,
147  *	   %-EOVERFLOW if the size of the property is not as expected.
158  * device_property_read_u64_array - return a u64 array property of a device
159  * @dev: Device to get the property of
160  * @propname: Name of the property
171  *         %0 if the property was found (success),
173  *	   %-ENODATA if the property does not have a value,
174  *	   %-EPROTO if the property is not an array of numbers,
175  *	   %-EOVERFLOW if the size of the property is not as expected.
186  * device_property_read_string_array - return a string array property of device
187  * @dev: Device to get the property of
188  * @propname: Name of the property
201  *	   %-ENODATA if the property does not have a value,
202  *	   %-EPROTO or %-EILSEQ if the property is not an array of strings,
203  *	   %-EOVERFLOW if the size of the property is not as expected.
214  * device_property_read_string - return a string property of a device
215  * @dev: Device to get the property of
216  * @propname: Name of the property
219  * Function reads property @propname from the device firmware description and
222  * Return: %0 if the property was found (success),
224  *	   %-ENODATA if the property does not have a value,
225  *	   %-EPROTO or %-EILSEQ if the property type is not a string.
237  * @dev: Device to get the property of
238  * @propname: Name of the property holding the array
244  * Return: index, starting from %0, if the property was found (success),
246  *	   %-ENODATA if the property does not have a value,
247  *	   %-EPROTO if the property is not an array of strings,
277  * fwnode_property_read_u8_array - return a u8 array property of firmware node
278  * @fwnode: Firmware node to get the property of
279  * @propname: Name of the property
290  *         %0 if the property was found (success),
292  *	   %-ENODATA if the property does not have a value,
293  *	   %-EPROTO if the property is not an array of numbers,
294  *	   %-EOVERFLOW if the size of the property is not as expected,
306  * fwnode_property_read_u16_array - return a u16 array property of firmware node
307  * @fwnode: Firmware node to get the property of
308  * @propname: Name of the property
319  *         %0 if the property was found (success),
321  *	   %-ENODATA if the property does not have a value,
322  *	   %-EPROTO if the property is not an array of numbers,
323  *	   %-EOVERFLOW if the size of the property is not as expected,
335  * fwnode_property_read_u32_array - return a u32 array property of firmware node
336  * @fwnode: Firmware node to get the property of
337  * @propname: Name of the property
348  *         %0 if the property was found (success),
350  *	   %-ENODATA if the property does not have a value,
351  *	   %-EPROTO if the property is not an array of numbers,
352  *	   %-EOVERFLOW if the size of the property is not as expected,
364  * fwnode_property_read_u64_array - return a u64 array property firmware node
365  * @fwnode: Firmware node to get the property of
366  * @propname: Name of the property
377  *         %0 if the property was found (success),
379  *	   %-ENODATA if the property does not have a value,
380  *	   %-EPROTO if the property is not an array of numbers,
381  *	   %-EOVERFLOW if the size of the property is not as expected,
393  * fwnode_property_read_string_array - return string array property of a node
394  * @fwnode: Firmware node to get the property of
395  * @propname: Name of the property
399  * Read an string list property @propname from the given firmware node and store
408  *	   %-ENODATA if the property does not have a value,
409  *	   %-EPROTO or %-EILSEQ if the property is not an array of strings,
410  *	   %-EOVERFLOW if the size of the property is not as expected,
433  * fwnode_property_read_string - return a string property of a firmware node
434  * @fwnode: Firmware node to get the property of
435  * @propname: Name of the property
438  * Read property @propname from the given firmware node and store the value into
441  * Return: %0 if the property was found (success),
443  *	   %-ENODATA if the property does not have a value,
444  *	   %-EPROTO or %-EILSEQ if the property is not a string,
458  * @fwnode: Firmware node to get the property of
459  * @propname: Name of the property holding the array
465  * Return: index, starting from %0, if the property was found (success),
467  *	   %-ENODATA if the property does not have a value,
468  *	   %-EPROTO if the property is not an array of strings,
503  * fwnode_property_match_property_string - find a property string value in an array and return index
504  * @fwnode: Firmware node to get the property of
505  * @propname: Name of the property holding the string value
509  * Find a property string value in a given @array and if it is found return
515  *	   %-ENODATA if the property does not have a value,
516  *	   %-EPROTO or %-EILSEQ if the property is not a string,
540  * @prop:	The name of the property
541  * @nargs_prop:	The name of the property telling the number of
549  * Obtain a reference based on a named property in an fwnode, with
557  *		     reference or the property was not found
929  * The function gets phy interface string from property 'phy-mode' or
957  * The function gets phy interface string from property 'phy-mode' or