drivers/base/property.c

3  * property.c - Unified device property interface.
17 #include <linux/property.h>
29  * device_property_present - check if a property of a device is present
30  * @dev: Device whose property is being checked
31  * @propname: Name of the property
33  * Check if property @propname is present in the device firmware description.
42  * fwnode_property_present - check if a property of a firmware node is present
43  * @fwnode: Firmware node whose property to check
44  * @propname: Name of the property
61  * device_property_read_u8_array - return a u8 array property of a device
62  * @dev: Device to get the property of
63  * @propname: Name of the property
71  *         %0 if the property was found (success),
73  *	   %-ENODATA if the property does not have a value,
74  *	   %-EPROTO if the property is not an array of numbers,
75  *	   %-EOVERFLOW if the size of the property is not as expected.
86  * device_property_read_u16_array - return a u16 array property of a device
87  * @dev: Device to get the property of
88  * @propname: Name of the property
96  *         %0 if the property was found (success),
98  *	   %-ENODATA if the property does not have a value,
99  *	   %-EPROTO if the property is not an array of numbers,
100  *	   %-EOVERFLOW if the size of the property is not as expected.
111  * device_property_read_u32_array - return a u32 array property of a device
112  * @dev: Device to get the property of
113  * @propname: Name of the property
121  *         %0 if the property was found (success),
123  *	   %-ENODATA if the property does not have a value,
124  *	   %-EPROTO if the property is not an array of numbers,
125  *	   %-EOVERFLOW if the size of the property is not as expected.
136  * device_property_read_u64_array - return a u64 array property of a device
137  * @dev: Device to get the property of
138  * @propname: Name of the property
146  *         %0 if the property was found (success),
148  *	   %-ENODATA if the property does not have a value,
149  *	   %-EPROTO if the property is not an array of numbers,
150  *	   %-EOVERFLOW if the size of the property is not as expected.
161  * device_property_read_string_array - return a string array property of device
162  * @dev: Device to get the property of
163  * @propname: Name of the property
173  *	   %-ENODATA if the property does not have a value,
174  *	   %-EPROTO or %-EILSEQ if the property is not an array of strings,
175  *	   %-EOVERFLOW if the size of the property is not as expected.
186  * device_property_read_string - return a string property of a device
187  * @dev: Device to get the property of
188  * @propname: Name of the property
191  * Function reads property @propname from the device firmware description and
194  * Return: %0 if the property was found (success),
196  *	   %-ENODATA if the property does not have a value,
197  *	   %-EPROTO or %-EILSEQ if the property type is not a string.
209  * @dev: Device to get the property of
210  * @propname: Name of the property holding the array
216  * Return: %0 if the property was found (success),
218  *	   %-ENODATA if the property does not have a value,
219  *	   %-EPROTO if the property is not an array of strings,
248  * fwnode_property_read_u8_array - return a u8 array property of firmware node
249  * @fwnode: Firmware node to get the property of
250  * @propname: Name of the property
258  *         %0 if the property was found (success),
260  *	   %-ENODATA if the property does not have a value,
261  *	   %-EPROTO if the property is not an array of numbers,
262  *	   %-EOVERFLOW if the size of the property is not as expected,
274  * fwnode_property_read_u16_array - return a u16 array property of firmware node
275  * @fwnode: Firmware node to get the property of
276  * @propname: Name of the property
284  *         %0 if the property was found (success),
286  *	   %-ENODATA if the property does not have a value,
287  *	   %-EPROTO if the property is not an array of numbers,
288  *	   %-EOVERFLOW if the size of the property is not as expected,
300  * fwnode_property_read_u32_array - return a u32 array property of firmware node
301  * @fwnode: Firmware node to get the property of
302  * @propname: Name of the property
310  *         %0 if the property was found (success),
312  *	   %-ENODATA if the property does not have a value,
313  *	   %-EPROTO if the property is not an array of numbers,
314  *	   %-EOVERFLOW if the size of the property is not as expected,
326  * fwnode_property_read_u64_array - return a u64 array property firmware node
327  * @fwnode: Firmware node to get the property of
328  * @propname: Name of the property
336  *         %0 if the property was found (success),
338  *	   %-ENODATA if the property does not have a value,
339  *	   %-EPROTO if the property is not an array of numbers,
340  *	   %-EOVERFLOW if the size of the property is not as expected,
352  * fwnode_property_read_string_array - return string array property of a node
353  * @fwnode: Firmware node to get the property of
354  * @propname: Name of the property
358  * Read an string list property @propname from the given firmware node and store
364  *	   %-ENODATA if the property does not have a value,
365  *	   %-EPROTO or %-EILSEQ if the property is not an array of strings,
366  *	   %-EOVERFLOW if the size of the property is not as expected,
387  * fwnode_property_read_string - return a string property of a firmware node
388  * @fwnode: Firmware node to get the property of
389  * @propname: Name of the property
392  * Read property @propname from the given firmware node and store the value into
395  * Return: %0 if the property was found (success),
397  *	   %-ENODATA if the property does not have a value,
398  *	   %-EPROTO or %-EILSEQ if the property is not a string,
412  * @fwnode: Firmware node to get the property of
413  * @propname: Name of the property holding the array
419  * Return: %0 if the property was found (success),
421  *	   %-ENODATA if the property does not have a value,
422  *	   %-EPROTO if the property is not an array of strings,
458  * @prop:	The name of the property
459  * @nargs_prop:	The name of the property telling the number of
466  * Obtain a reference based on a named property in an fwnode, with
474  *		     reference or the property was not found
844  * The function gets phy interface string from property 'phy-mode' or
872  * The function gets phy interface string from property 'phy-mode' or
905  * Note that the 'address' property is supposed to contain a virtual address of
906  * the register set, but some DTS files have redefined that property to be the