drivers/base/property.c

3  * property.c - Unified device property interface.
17 #include <linux/property.h>
35  * device_property_present - check if a property of a device is present
36  * @dev: Device whose property is being checked
37  * @propname: Name of the property
39  * Check if property @propname is present in the device firmware description.
41  * Return: true if property @propname is present. Otherwise, returns false.
50  * fwnode_property_present - check if a property of a firmware node is present
51  * @fwnode: Firmware node whose property to check
52  * @propname: Name of the property
54  * Return: true if property @propname is present. Otherwise, returns false.
73  * device_property_read_u8_array - return a u8 array property of a device
74  * @dev: Device to get the property of
75  * @propname: Name of the property
86  *         %0 if the property was found (success),
88  *	   %-ENODATA if the property does not have a value,
89  *	   %-EPROTO if the property is not an array of numbers,
90  *	   %-EOVERFLOW if the size of the property is not as expected.
101  * device_property_read_u16_array - return a u16 array property of a device
102  * @dev: Device to get the property of
103  * @propname: Name of the property
114  *         %0 if the property was found (success),
116  *	   %-ENODATA if the property does not have a value,
117  *	   %-EPROTO if the property is not an array of numbers,
118  *	   %-EOVERFLOW if the size of the property is not as expected.
129  * device_property_read_u32_array - return a u32 array property of a device
130  * @dev: Device to get the property of
131  * @propname: Name of the property
142  *         %0 if the property was found (success),
144  *	   %-ENODATA if the property does not have a value,
145  *	   %-EPROTO if the property is not an array of numbers,
146  *	   %-EOVERFLOW if the size of the property is not as expected.
157  * device_property_read_u64_array - return a u64 array property of a device
158  * @dev: Device to get the property of
159  * @propname: Name of the property
170  *         %0 if the property was found (success),
172  *	   %-ENODATA if the property does not have a value,
173  *	   %-EPROTO if the property is not an array of numbers,
174  *	   %-EOVERFLOW if the size of the property is not as expected.
185  * device_property_read_string_array - return a string array property of device
186  * @dev: Device to get the property of
187  * @propname: Name of the property
200  *	   %-ENODATA if the property does not have a value,
201  *	   %-EPROTO or %-EILSEQ if the property is not an array of strings,
202  *	   %-EOVERFLOW if the size of the property is not as expected.
213  * device_property_read_string - return a string property of a device
214  * @dev: Device to get the property of
215  * @propname: Name of the property
218  * Function reads property @propname from the device firmware description and
221  * Return: %0 if the property was found (success),
223  *	   %-ENODATA if the property does not have a value,
224  *	   %-EPROTO or %-EILSEQ if the property type is not a string.
236  * @dev: Device to get the property of
237  * @propname: Name of the property holding the array
243  * Return: index, starting from %0, if the property was found (success),
245  *	   %-ENODATA if the property does not have a value,
246  *	   %-EPROTO if the property is not an array of strings,
276  * fwnode_property_read_u8_array - return a u8 array property of firmware node
277  * @fwnode: Firmware node to get the property of
278  * @propname: Name of the property
289  *         %0 if the property was found (success),
291  *	   %-ENODATA if the property does not have a value,
292  *	   %-EPROTO if the property is not an array of numbers,
293  *	   %-EOVERFLOW if the size of the property is not as expected,
305  * fwnode_property_read_u16_array - return a u16 array property of firmware node
306  * @fwnode: Firmware node to get the property of
307  * @propname: Name of the property
318  *         %0 if the property was found (success),
320  *	   %-ENODATA if the property does not have a value,
321  *	   %-EPROTO if the property is not an array of numbers,
322  *	   %-EOVERFLOW if the size of the property is not as expected,
334  * fwnode_property_read_u32_array - return a u32 array property of firmware node
335  * @fwnode: Firmware node to get the property of
336  * @propname: Name of the property
347  *         %0 if the property was found (success),
349  *	   %-ENODATA if the property does not have a value,
350  *	   %-EPROTO if the property is not an array of numbers,
351  *	   %-EOVERFLOW if the size of the property is not as expected,
363  * fwnode_property_read_u64_array - return a u64 array property firmware node
364  * @fwnode: Firmware node to get the property of
365  * @propname: Name of the property
376  *         %0 if the property was found (success),
378  *	   %-ENODATA if the property does not have a value,
379  *	   %-EPROTO if the property is not an array of numbers,
380  *	   %-EOVERFLOW if the size of the property is not as expected,
392  * fwnode_property_read_string_array - return string array property of a node
393  * @fwnode: Firmware node to get the property of
394  * @propname: Name of the property
398  * Read an string list property @propname from the given firmware node and store
407  *	   %-ENODATA if the property does not have a value,
408  *	   %-EPROTO or %-EILSEQ if the property is not an array of strings,
409  *	   %-EOVERFLOW if the size of the property is not as expected,
432  * fwnode_property_read_string - return a string property of a firmware node
433  * @fwnode: Firmware node to get the property of
434  * @propname: Name of the property
437  * Read property @propname from the given firmware node and store the value into
440  * Return: %0 if the property was found (success),
442  *	   %-ENODATA if the property does not have a value,
443  *	   %-EPROTO or %-EILSEQ if the property is not a string,
457  * @fwnode: Firmware node to get the property of
458  * @propname: Name of the property holding the array
464  * Return: index, starting from %0, if the property was found (success),
466  *	   %-ENODATA if the property does not have a value,
467  *	   %-EPROTO if the property is not an array of strings,
502  * fwnode_property_match_property_string - find a property string value in an array and return index
503  * @fwnode: Firmware node to get the property of
504  * @propname: Name of the property holding the string value
508  * Find a property string value in a given @array and if it is found return
514  *	   %-ENODATA if the property does not have a value,
515  *	   %-EPROTO or %-EILSEQ if the property is not a string,
539  * @prop:	The name of the property
540  * @nargs_prop:	The name of the property telling the number of
548  * Obtain a reference based on a named property in an fwnode, with
556  *		     reference or the property was not found
998  * The function gets phy interface string from property 'phy-mode' or
1026  * The function gets phy interface string from property 'phy-mode' or