include/system/device_tree.h

22  * /proc/device-tree directory and return the corresponding binary blob
30  * name and compat string
33  * @compat: compatibility string
36  * returns a newly allocated NULL-terminated array of node paths.
38  * array contains the path of each node and the last element equals to
40  * returned array contains a single element equal to NULL. If an error
51  * node-name, ie. node-name and node-name@unit-address
56  * returns a newly allocated NULL-terminated array of node paths.
58  * array contains the path of each node and the last element equals to
60  * returned array contains a single element equal to NULL. If an error
66                      const char *property, const void *val, int size);
68                           const char *property, uint32_t val);
70                          const char *property, uint64_t val);
72                             const char *property, const char *string);
75  * qemu_fdt_setprop_string_array: set a string array property
79  * @prop: property array
80  * @array: pointer to an array of string pointers
81  * @len: length of array
83  * assigns a string array to a property. This function converts and
84  * array of strings to a sequential string with \0 separators before
85  * setting the property.
88                                   const char *prop, char **array, int len);
91                              const char *property,
94  * qemu_fdt_getprop: retrieve the value of a given property
97  * @property: name of the property to find
98  * @lenp: fdt error if any or length of the property on success
101  * returns a pointer to the property on success and NULL on failure
104                              const char *property, int *lenp,
107  * qemu_fdt_getprop_cell: retrieve the value of a given 4 byte property
110  * @property: name of the property to find
111  * @lenp: fdt error if any or -EINVAL if the property size is different from
112  *        4 bytes, or 4 (expected length of the property) upon success.
115  * returns the property value on success
118                                const char *property, int *lenp,
126 #define qemu_fdt_setprop_cells(fdt, node_path, property, ...)                 \  argument
132         qemu_fdt_setprop(fdt, node_path, property, qdt_tmp,                   \
139  * @node_path: node to set property on
140  * @property: property to set
142  * @values: array of number-of-cells, value pairs
144  * Set the specified property on the specified node in the device tree
145  * to be an array of cells. The values of the cells are specified via
148  * number-of-cells must be either 1 or 2 (other values will result in
155  * #address-cells and #size-cells properties of their parent node.
158  * array programmatically, qemu_fdt_setprop_sized_cells may be more
165                                             const char *property,
172  * @node_path: node to set property on
173  * @property: property to set
174  * @...: list of number-of-cells, value pairs
176  * Set the specified property on the specified node in the device tree
177  * to be an array of cells. The values of the cells are specified via
186 #define qemu_fdt_setprop_sized_cells(fdt, node_path, property, ...)       \  argument
190                                                 property,                 \
200  * Re-randomize all "rng-seed" properties with new seeds.