1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Function to read values from the device tree node attached to a udevice.
5 * Copyright (c) 2017 Google, Inc
6 * Written by Simon Glass <sjg@chromium.org>
12 #include <linux/errno.h>
14 #include <dm/device.h>
15 #include <dm/fdtaddr.h>
16 #include <dm/ofnode.h>
17 #include <dm/uclass.h>
21 #if CONFIG_IS_ENABLED(OF_LIVE)
22 static inline const struct device_node *dev_np(const struct udevice *dev)
24 return ofnode_to_np(dev_ofnode(dev));
27 static inline const struct device_node *dev_np(const struct udevice *dev)
33 #if !defined(CONFIG_DM_DEV_READ_INLINE) || CONFIG_IS_ENABLED(OF_PLATDATA)
35 * dev_read_u32() - read a 32-bit integer from a device's DT property
37 * @dev: device to read DT property from
38 * @propname: name of the property to read from
39 * @outp: place to put value (if found)
40 * @return 0 if OK, -ve on error
42 int dev_read_u32(const struct udevice *dev, const char *propname, u32 *outp);
45 * dev_read_u32_default() - read a 32-bit integer from a device's DT property
47 * @dev: device to read DT property from
48 * @propname: name of the property to read from
49 * @def: default value to return if the property has no value
50 * @return property value, or @def if not found
52 int dev_read_u32_default(const struct udevice *dev, const char *propname,
56 * dev_read_u32_index() - read an indexed 32-bit integer from a device's DT
59 * @dev: device to read DT property from
60 * @propname: name of the property to read from
61 * @index: index of the integer to return
62 * @outp: place to put value (if found)
63 * @return 0 if OK, -ve on error
65 int dev_read_u32_index(struct udevice *dev, const char *propname, int index,
69 * dev_read_u32_index_default() - read an indexed 32-bit integer from a device's
72 * @dev: device to read DT property from
73 * @propname: name of the property to read from
74 * @index: index of the integer to return
75 * @def: default value to return if the property has no value
76 * @return property value, or @def if not found
78 u32 dev_read_u32_index_default(struct udevice *dev, const char *propname,
82 * dev_read_s32() - read a signed 32-bit integer from a device's DT property
84 * @dev: device to read DT property from
85 * @propname: name of the property to read from
86 * @outp: place to put value (if found)
87 * @return 0 if OK, -ve on error
89 int dev_read_s32(const struct udevice *dev, const char *propname, s32 *outp);
92 * dev_read_s32_default() - read a signed 32-bit int from a device's DT property
94 * @dev: device to read DT property from
95 * @propname: name of the property to read from
96 * @def: default value to return if the property has no value
97 * @return property value, or @def if not found
99 int dev_read_s32_default(const struct udevice *dev, const char *propname,
103 * dev_read_u32u() - read a 32-bit integer from a device's DT property
105 * This version uses a standard uint type.
107 * @dev: device to read DT property from
108 * @propname: name of the property to read from
109 * @outp: place to put value (if found)
110 * @return 0 if OK, -ve on error
112 int dev_read_u32u(const struct udevice *dev, const char *propname, uint *outp);
115 * dev_read_u64() - read a 64-bit integer from a device's DT property
117 * @dev: device to read DT property from
118 * @propname: name of the property to read from
119 * @outp: place to put value (if found)
120 * @return 0 if OK, -ve on error
122 int dev_read_u64(const struct udevice *dev, const char *propname, u64 *outp);
125 * dev_read_u64_default() - read a 64-bit integer from a device's DT property
127 * @dev: device to read DT property from
128 * @propname: name of the property to read from
129 * @def: default value to return if the property has no value
130 * @return property value, or @def if not found
132 u64 dev_read_u64_default(const struct udevice *dev, const char *propname,
136 * dev_read_string() - Read a string from a device's DT property
138 * @dev: device to read DT property from
139 * @propname: name of the property to read
140 * @return string from property value, or NULL if there is no such property
142 const char *dev_read_string(const struct udevice *dev, const char *propname);
145 * dev_read_bool() - read a boolean value from a device's DT property
147 * @dev: device to read DT property from
148 * @propname: name of property to read
149 * @return true if property is present (meaning true), false if not present
151 bool dev_read_bool(const struct udevice *dev, const char *propname);
154 * dev_read_subnode() - find a named subnode of a device
156 * @dev: device whose DT node contains the subnode
157 * @subnode_name: name of subnode to find
158 * @return reference to subnode (which can be invalid if there is no such
161 ofnode dev_read_subnode(const struct udevice *dev, const char *subbnode_name);
164 * dev_read_size() - read the size of a property
166 * @dev: device to check
167 * @propname: property to check
168 * @return size of property if present, or -EINVAL if not
170 int dev_read_size(const struct udevice *dev, const char *propname);
173 * dev_read_addr_index() - Get the indexed reg property of a device
175 * @dev: Device to read from
176 * @index: the 'reg' property can hold a list of <addr, size> pairs
177 * and @index is used to select which one is required
179 * @return address or FDT_ADDR_T_NONE if not found
181 fdt_addr_t dev_read_addr_index(const struct udevice *dev, int index);
184 * dev_read_addr_index_ptr() - Get the indexed reg property of a device
187 * @dev: Device to read from
188 * @index: the 'reg' property can hold a list of <addr, size> pairs
189 * and @index is used to select which one is required
191 * @return pointer or NULL if not found
193 void *dev_read_addr_index_ptr(const struct udevice *dev, int index);
196 * dev_read_addr_size_index() - Get the indexed reg property of a device
198 * @dev: Device to read from
199 * @index: the 'reg' property can hold a list of <addr, size> pairs
200 * and @index is used to select which one is required
201 * @size: place to put size value (on success)
203 * @return address or FDT_ADDR_T_NONE if not found
205 fdt_addr_t dev_read_addr_size_index(const struct udevice *dev, int index,
209 * dev_remap_addr_index() - Get the indexed reg property of a device
210 * as a memory-mapped I/O pointer
212 * @dev: Device to read from
213 * @index: the 'reg' property can hold a list of <addr, size> pairs
214 * and @index is used to select which one is required
216 * @return pointer or NULL if not found
218 void *dev_remap_addr_index(const struct udevice *dev, int index);
221 * dev_read_addr_name() - Get the reg property of a device, indexed by name
223 * @dev: Device to read from
224 * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
225 * 'reg-names' property providing named-based identification. @index
226 * indicates the value to search for in 'reg-names'.
228 * @return address or FDT_ADDR_T_NONE if not found
230 fdt_addr_t dev_read_addr_name(const struct udevice *dev, const char *name);
233 * dev_read_addr_size_name() - Get the reg property of a device, indexed by name
235 * @dev: Device to read from
236 * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
237 * 'reg-names' property providing named-based identification. @index
238 * indicates the value to search for in 'reg-names'.
239 * @size: place to put size value (on success)
241 * @return address or FDT_ADDR_T_NONE if not found
243 fdt_addr_t dev_read_addr_size_name(const struct udevice *dev, const char *name,
247 * dev_remap_addr_name() - Get the reg property of a device, indexed by name,
248 * as a memory-mapped I/O pointer
250 * @dev: Device to read from
251 * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
252 * 'reg-names' property providing named-based identification. @index
253 * indicates the value to search for in 'reg-names'.
255 * @return pointer or NULL if not found
257 void *dev_remap_addr_name(const struct udevice *dev, const char *name);
260 * dev_read_addr() - Get the reg property of a device
262 * @dev: Device to read from
264 * @return address or FDT_ADDR_T_NONE if not found
266 fdt_addr_t dev_read_addr(const struct udevice *dev);
269 * dev_read_addr_ptr() - Get the reg property of a device
272 * @dev: Device to read from
274 * @return pointer or NULL if not found
276 void *dev_read_addr_ptr(const struct udevice *dev);
279 * dev_read_addr_pci() - Read an address and handle PCI address translation
281 * At present U-Boot does not have address translation logic for PCI in the
282 * livetree implementation (of_addr.c). This special function supports this for
283 * the flat tree implementation.
285 * This function should be removed (and code should use dev_read() instead)
288 * 1. PCI address translation is added; and either
289 * 2. everything uses livetree where PCI translation is used (which is feasible
290 * in SPL and U-Boot proper) or PCI address translation is added to
291 * fdtdec_get_addr() and friends.
293 * @dev: Device to read from
294 * @return address or FDT_ADDR_T_NONE if not found
296 fdt_addr_t dev_read_addr_pci(const struct udevice *dev);
299 * dev_remap_addr() - Get the reg property of a device as a
300 * memory-mapped I/O pointer
302 * @dev: Device to read from
304 * @return pointer or NULL if not found
306 void *dev_remap_addr(const struct udevice *dev);
309 * dev_read_addr_size() - get address and size from a device property
311 * This does no address translation. It simply reads an property that contains
312 * an address and a size value, one after the other.
314 * @dev: Device to read from
315 * @propname: property to read
316 * @sizep: place to put size value (on success)
317 * @return address value, or FDT_ADDR_T_NONE on error
319 fdt_addr_t dev_read_addr_size(const struct udevice *dev, const char *propname,
323 * dev_read_name() - get the name of a device's node
325 * @dev: Device to read from
326 * @return name of node
328 const char *dev_read_name(const struct udevice *dev);
331 * dev_read_stringlist_search() - find string in a string list and return index
333 * Note that it is possible for this function to succeed on property values
334 * that are not NUL-terminated. That's because the function will stop after
335 * finding the first occurrence of @string. This can for example happen with
336 * small-valued cell properties, such as #address-cells, when searching for
339 * @dev: device to check
340 * @propname: name of the property containing the string list
341 * @string: string to look up in the string list
344 * the index of the string in the list of strings
345 * -ENODATA if the property is not found
346 * -EINVAL on some other error
348 int dev_read_stringlist_search(const struct udevice *dev, const char *property,
352 * dev_read_string_index() - obtain an indexed string from a string list
354 * @dev: device to examine
355 * @propname: name of the property containing the string list
356 * @index: index of the string to return
357 * @out: return location for the string
360 * length of string, if found or -ve error value if not found
362 int dev_read_string_index(const struct udevice *dev, const char *propname,
363 int index, const char **outp);
366 * dev_read_string_count() - find the number of strings in a string list
368 * @dev: device to examine
369 * @propname: name of the property containing the string list
371 * number of strings in the list, or -ve error value if not found
373 int dev_read_string_count(const struct udevice *dev, const char *propname);
376 * dev_read_string_list() - read a list of strings
378 * This produces a list of string pointers with each one pointing to a string
379 * in the string list. If the property does not exist, it returns {NULL}.
381 * The data is allocated and the caller is reponsible for freeing the return
382 * value (the list of string pointers). The strings themselves may not be
383 * changed as they point directly into the devicetree property.
385 * @dev: device to examine
386 * @propname: name of the property containing the string list
387 * @listp: returns an allocated, NULL-terminated list of strings if the return
388 * value is > 0, else is set to NULL
389 * @return number of strings in list, 0 if none, -ENOMEM if out of memory,
390 * -ENOENT if no such property
392 int dev_read_string_list(const struct udevice *dev, const char *propname,
393 const char ***listp);
396 * dev_read_phandle_with_args() - Find a node pointed by phandle in a list
398 * This function is useful to parse lists of phandles and their arguments.
399 * Returns 0 on success and fills out_args, on error returns appropriate
402 * Caller is responsible to call of_node_put() on the returned out_args->np
416 * list = <&phandle1 1 2 &phandle2 3>;
419 * To get a device_node of the `node2' node you may call this:
420 * dev_read_phandle_with_args(dev, "list", "#list-cells", 0, 1, &args);
422 * @dev: device whose node containing a list
423 * @list_name: property name that contains a list
424 * @cells_name: property name that specifies phandles' arguments count
425 * @cells_count: Cell count to use if @cells_name is NULL
426 * @index: index of a phandle to parse out
427 * @out_args: optional pointer to output arguments structure (will be filled)
428 * @return 0 on success (with @out_args filled out if not NULL), -ENOENT if
429 * @list_name does not exist, -EINVAL if a phandle was not found,
430 * @cells_name could not be found, the arguments were truncated or there
431 * were too many arguments.
433 int dev_read_phandle_with_args(const struct udevice *dev, const char *list_name,
434 const char *cells_name, int cell_count,
435 int index, struct ofnode_phandle_args *out_args);
438 * dev_count_phandle_with_args() - Return phandle number in a list
440 * This function is usefull to get phandle number contained in a property list.
441 * For example, this allows to allocate the right amount of memory to keep
442 * clock's reference contained into the "clocks" property.
445 * @dev: device whose node containing a list
446 * @list_name: property name that contains a list
447 * @cells_name: property name that specifies phandles' arguments count
448 * @cells_count: Cell count to use if @cells_name is NULL
449 * @Returns number of phandle found on success, on error returns appropriate
453 int dev_count_phandle_with_args(const struct udevice *dev,
454 const char *list_name, const char *cells_name,
458 * dev_read_addr_cells() - Get the number of address cells for a device's node
460 * This walks back up the tree to find the closest #address-cells property
461 * which controls the given node.
463 * @dev: device to check
464 * @return number of address cells this node uses
466 int dev_read_addr_cells(const struct udevice *dev);
469 * dev_read_size_cells() - Get the number of size cells for a device's node
471 * This walks back up the tree to find the closest #size-cells property
472 * which controls the given node.
474 * @dev: device to check
475 * @return number of size cells this node uses
477 int dev_read_size_cells(const struct udevice *dev);
480 * dev_read_addr_cells() - Get the address cells property in a node
482 * This function matches fdt_address_cells().
484 * @dev: device to check
485 * @return number of address cells this node uses
487 int dev_read_simple_addr_cells(const struct udevice *dev);
490 * dev_read_size_cells() - Get the size cells property in a node
492 * This function matches fdt_size_cells().
494 * @dev: device to check
495 * @return number of size cells this node uses
497 int dev_read_simple_size_cells(const struct udevice *dev);
500 * dev_read_phandle() - Get the phandle from a device
502 * @dev: device to check
503 * @return phandle (1 or greater), or 0 if no phandle or other error
505 int dev_read_phandle(const struct udevice *dev);
508 * dev_read_prop()- - read a property from a device's node
510 * @dev: device to check
511 * @propname: property to read
512 * @lenp: place to put length on success
513 * @return pointer to property, or NULL if not found
515 const void *dev_read_prop(const struct udevice *dev, const char *propname,
519 * dev_read_first_prop()- get the reference of the first property
521 * Get reference to the first property of the node, it is used to iterate
522 * and read all the property with dev_read_prop_by_prop().
524 * @dev: device to check
525 * @prop: place to put argument reference
526 * @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
528 int dev_read_first_prop(const struct udevice *dev, struct ofprop *prop);
531 * ofnode_get_next_property() - get the reference of the next property
533 * Get reference to the next property of the node, it is used to iterate
534 * and read all the property with dev_read_prop_by_prop().
536 * @prop: reference of current argument and place to put reference of next one
537 * @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
539 int dev_read_next_prop(struct ofprop *prop);
542 * dev_read_prop_by_prop() - get a pointer to the value of a property
544 * Get value for the property identified by the provided reference.
546 * @prop: reference on property
547 * @propname: If non-NULL, place to property name on success,
548 * @lenp: If non-NULL, place to put length on success
549 * @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
551 const void *dev_read_prop_by_prop(struct ofprop *prop,
552 const char **propname, int *lenp);
555 * dev_read_alias_seq() - Get the alias sequence number of a node
557 * This works out whether a node is pointed to by an alias, and if so, the
558 * sequence number of that alias. Aliases are of the form <base><num> where
559 * <num> is the sequence number. For example spi2 would be sequence number 2.
561 * @dev: device to look up
562 * @devnump: set to the sequence number if one is found
563 * @return 0 if a sequence was found, -ve if not
565 int dev_read_alias_seq(const struct udevice *dev, int *devnump);
568 * dev_read_u32_array() - Find and read an array of 32 bit integers
570 * Search for a property in a device node and read 32-bit value(s) from
573 * The out_values is modified only if a valid u32 value can be decoded.
575 * @dev: device to look up
576 * @propname: name of the property to read
577 * @out_values: pointer to return value, modified only if return value is 0
578 * @sz: number of array elements to read
579 * @return 0 on success, -EINVAL if the property does not exist, -ENODATA if
580 * property does not have a value, and -EOVERFLOW if the property data isn't
583 int dev_read_u32_array(const struct udevice *dev, const char *propname,
584 u32 *out_values, size_t sz);
587 * dev_read_first_subnode() - find the first subnode of a device's node
589 * @dev: device to look up
590 * @return reference to the first subnode (which can be invalid if the device's
591 * node has no subnodes)
593 ofnode dev_read_first_subnode(const struct udevice *dev);
596 * ofnode_next_subnode() - find the next sibling of a subnode
598 * @node: valid reference to previous node (sibling)
599 * @return reference to the next subnode (which can be invalid if the node
600 * has no more siblings)
602 ofnode dev_read_next_subnode(ofnode node);
605 * dev_read_u8_array_ptr() - find an 8-bit array
607 * Look up a device's node property and return a pointer to its contents as a
608 * byte array of given length. The property must have at least enough data
609 * for the array (count bytes). It may have more, but this will be ignored.
610 * The data is not copied.
612 * @dev: device to look up
613 * @propname: name of property to find
614 * @sz: number of array elements
615 * @return pointer to byte array if found, or NULL if the property is not
616 * found or there is not enough data
618 const uint8_t *dev_read_u8_array_ptr(const struct udevice *dev,
619 const char *propname, size_t sz);
622 * dev_read_enabled() - check whether a node is enabled
624 * This looks for a 'status' property. If this exists, then returns 1 if
625 * the status is 'ok' and 0 otherwise. If there is no status property,
626 * it returns 1 on the assumption that anything mentioned should be enabled
629 * @dev: device to examine
630 * @return integer value 0 (not enabled) or 1 (enabled)
632 int dev_read_enabled(const struct udevice *dev);
635 * dev_read_resource() - obtain an indexed resource from a device.
637 * @dev: device to examine
638 * @index index of the resource to retrieve (0 = first)
639 * @res returns the resource
640 * @return 0 if ok, negative on error
642 int dev_read_resource(const struct udevice *dev, uint index,
643 struct resource *res);
646 * dev_read_resource_byname() - obtain a named resource from a device.
648 * @dev: device to examine
649 * @name: name of the resource to retrieve
650 * @res: returns the resource
651 * @return 0 if ok, negative on error
653 int dev_read_resource_byname(const struct udevice *dev, const char *name,
654 struct resource *res);
657 * dev_translate_address() - Translate a device-tree address
659 * Translate an address from the device-tree into a CPU physical address. This
660 * function walks up the tree and applies the various bus mappings along the
663 * @dev: device giving the context in which to translate the address
664 * @in_addr: pointer to the address to translate
665 * @return the translated address; OF_BAD_ADDR on error
667 u64 dev_translate_address(const struct udevice *dev, const fdt32_t *in_addr);
670 * dev_translate_dma_address() - Translate a device-tree DMA address
672 * Translate a DMA address from the device-tree into a CPU physical address.
673 * This function walks up the tree and applies the various bus mappings along
676 * @dev: device giving the context in which to translate the DMA address
677 * @in_addr: pointer to the DMA address to translate
678 * @return the translated DMA address; OF_BAD_ADDR on error
680 u64 dev_translate_dma_address(const struct udevice *dev,
681 const fdt32_t *in_addr);
684 * dev_get_dma_range() - Get a device's DMA constraints
686 * Provide the address bases and size of the linear mapping between the CPU and
687 * a device's BUS address space.
689 * @dev: device giving the context in which to translate the DMA address
690 * @cpu: base address for CPU's view of memory
691 * @bus: base address for BUS's view of memory
692 * @size: size of the address space
693 * @return 0 if ok, negative on error
695 int dev_get_dma_range(const struct udevice *dev, phys_addr_t *cpu,
696 dma_addr_t *bus, u64 *size);
699 * dev_read_alias_highest_id - Get highest alias id for the given stem
700 * @stem: Alias stem to be examined
702 * The function travels the lookup table to get the highest alias id for the
704 * @return alias ID, if found, else -1
706 int dev_read_alias_highest_id(const char *stem);
709 * dev_get_child_count() - get the child count of a device
711 * @dev: device to use for interation (struct udevice *)
712 * @return the count of child subnode
714 int dev_get_child_count(const struct udevice *dev);
717 * dev_read_pci_bus_range - Read PCI bus-range resource
719 * Look at the bus range property of a device node and return the pci bus
720 * range for this node.
722 * @dev: device to examine
723 * @res returns the resource
724 * @return 0 if ok, negative on error
726 int dev_read_pci_bus_range(const struct udevice *dev, struct resource *res);
729 * dev_decode_display_timing() - decode display timings
731 * Decode display timings from the supplied 'display-timings' node.
732 * See doc/device-tree-bindings/video/display-timing.txt for binding
735 * @dev: device to read DT display timings from. The node linked to the device
736 * contains a child node called 'display-timings' which in turn contains
737 * one or more display timing nodes.
738 * @index: index number to read (0=first timing subnode)
739 * @config: place to put timings
740 * @return 0 if OK, -FDT_ERR_NOTFOUND if not found
742 int dev_decode_display_timing(const struct udevice *dev, int index,
743 struct display_timing *config);
745 #else /* CONFIG_DM_DEV_READ_INLINE is enabled */
746 #include <asm/global_data.h>
748 static inline int dev_read_u32(const struct udevice *dev,
749 const char *propname, u32 *outp)
751 return ofnode_read_u32(dev_ofnode(dev), propname, outp);
754 static inline int dev_read_u32_default(const struct udevice *dev,
755 const char *propname, int def)
757 return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
760 static inline int dev_read_u32_index(struct udevice *dev,
761 const char *propname, int index, u32 *outp)
763 return ofnode_read_u32_index(dev_ofnode(dev), propname, index, outp);
766 static inline u32 dev_read_u32_index_default(struct udevice *dev,
767 const char *propname, int index,
770 return ofnode_read_u32_index_default(dev_ofnode(dev), propname, index,
774 static inline int dev_read_s32(const struct udevice *dev,
775 const char *propname, s32 *outp)
777 return ofnode_read_s32(dev_ofnode(dev), propname, outp);
780 static inline int dev_read_s32_default(const struct udevice *dev,
781 const char *propname, int def)
783 return ofnode_read_s32_default(dev_ofnode(dev), propname, def);
786 static inline int dev_read_u32u(const struct udevice *dev,
787 const char *propname, uint *outp)
792 ret = ofnode_read_u32(dev_ofnode(dev), propname, &val);
800 static inline int dev_read_u64(const struct udevice *dev,
801 const char *propname, u64 *outp)
803 return ofnode_read_u64(dev_ofnode(dev), propname, outp);
806 static inline u64 dev_read_u64_default(const struct udevice *dev,
807 const char *propname, u64 def)
809 return ofnode_read_u64_default(dev_ofnode(dev), propname, def);
812 static inline const char *dev_read_string(const struct udevice *dev,
813 const char *propname)
815 return ofnode_read_string(dev_ofnode(dev), propname);
818 static inline bool dev_read_bool(const struct udevice *dev,
819 const char *propname)
821 return ofnode_read_bool(dev_ofnode(dev), propname);
824 static inline ofnode dev_read_subnode(const struct udevice *dev,
825 const char *subbnode_name)
827 return ofnode_find_subnode(dev_ofnode(dev), subbnode_name);
830 static inline int dev_read_size(const struct udevice *dev, const char *propname)
832 return ofnode_read_size(dev_ofnode(dev), propname);
835 static inline fdt_addr_t dev_read_addr_index(const struct udevice *dev,
838 return devfdt_get_addr_index(dev, index);
841 static inline void *dev_read_addr_index_ptr(const struct udevice *dev,
844 return devfdt_get_addr_index_ptr(dev, index);
847 static inline fdt_addr_t dev_read_addr_size_index(const struct udevice *dev,
851 return devfdt_get_addr_size_index(dev, index, size);
854 static inline fdt_addr_t dev_read_addr_name(const struct udevice *dev,
857 return devfdt_get_addr_name(dev, name);
860 static inline fdt_addr_t dev_read_addr_size_name(const struct udevice *dev,
864 return devfdt_get_addr_size_name(dev, name, size);
867 static inline fdt_addr_t dev_read_addr(const struct udevice *dev)
869 return devfdt_get_addr(dev);
872 static inline void *dev_read_addr_ptr(const struct udevice *dev)
874 return devfdt_get_addr_ptr(dev);
877 static inline fdt_addr_t dev_read_addr_pci(const struct udevice *dev)
879 return devfdt_get_addr_pci(dev);
882 static inline void *dev_remap_addr(const struct udevice *dev)
884 return devfdt_remap_addr(dev);
887 static inline void *dev_remap_addr_index(const struct udevice *dev, int index)
889 return devfdt_remap_addr_index(dev, index);
892 static inline void *dev_remap_addr_name(const struct udevice *dev,
895 return devfdt_remap_addr_name(dev, name);
898 static inline fdt_addr_t dev_read_addr_size(const struct udevice *dev,
899 const char *propname,
902 return ofnode_get_addr_size(dev_ofnode(dev), propname, sizep);
905 static inline const char *dev_read_name(const struct udevice *dev)
907 return ofnode_get_name(dev_ofnode(dev));
910 static inline int dev_read_stringlist_search(const struct udevice *dev,
911 const char *propname,
914 return ofnode_stringlist_search(dev_ofnode(dev), propname, string);
917 static inline int dev_read_string_index(const struct udevice *dev,
918 const char *propname, int index,
921 return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp);
924 static inline int dev_read_string_count(const struct udevice *dev,
925 const char *propname)
927 return ofnode_read_string_count(dev_ofnode(dev), propname);
930 static inline int dev_read_string_list(const struct udevice *dev,
931 const char *propname,
934 return ofnode_read_string_list(dev_ofnode(dev), propname, listp);
937 static inline int dev_read_phandle_with_args(const struct udevice *dev,
938 const char *list_name, const char *cells_name, int cell_count,
939 int index, struct ofnode_phandle_args *out_args)
941 return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name,
942 cells_name, cell_count, index,
946 static inline int dev_count_phandle_with_args(const struct udevice *dev,
947 const char *list_name, const char *cells_name, int cell_count)
949 return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name,
950 cells_name, cell_count);
953 static inline int dev_read_addr_cells(const struct udevice *dev)
955 int parent = fdt_parent_offset(gd->fdt_blob, dev_of_offset(dev));
957 return fdt_address_cells(gd->fdt_blob, parent);
960 static inline int dev_read_size_cells(const struct udevice *dev)
962 int parent = fdt_parent_offset(gd->fdt_blob, dev_of_offset(dev));
964 return fdt_size_cells(gd->fdt_blob, parent);
967 static inline int dev_read_simple_addr_cells(const struct udevice *dev)
969 return fdt_address_cells(gd->fdt_blob, dev_of_offset(dev));
972 static inline int dev_read_simple_size_cells(const struct udevice *dev)
974 return fdt_size_cells(gd->fdt_blob, dev_of_offset(dev));
977 static inline int dev_read_phandle(const struct udevice *dev)
979 return fdt_get_phandle(gd->fdt_blob, dev_of_offset(dev));
982 static inline const void *dev_read_prop(const struct udevice *dev,
983 const char *propname, int *lenp)
985 return ofnode_get_property(dev_ofnode(dev), propname, lenp);
988 static inline int dev_read_first_prop(const struct udevice *dev, struct ofprop *prop)
990 return ofnode_get_first_property(dev_ofnode(dev), prop);
993 static inline int dev_read_next_prop(struct ofprop *prop)
995 return ofnode_get_next_property(prop);
998 static inline const void *dev_read_prop_by_prop(struct ofprop *prop,
999 const char **propname,
1002 return ofnode_get_property_by_prop(prop, propname, lenp);
1005 static inline int dev_read_alias_seq(const struct udevice *dev, int *devnump)
1007 #if CONFIG_IS_ENABLED(OF_CONTROL)
1008 return fdtdec_get_alias_seq(gd->fdt_blob, dev->uclass->uc_drv->name,
1009 dev_of_offset(dev), devnump);
1015 static inline int dev_read_u32_array(const struct udevice *dev,
1016 const char *propname, u32 *out_values,
1019 return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz);
1022 static inline ofnode dev_read_first_subnode(const struct udevice *dev)
1024 return ofnode_first_subnode(dev_ofnode(dev));
1027 static inline ofnode dev_read_next_subnode(ofnode node)
1029 return ofnode_next_subnode(node);
1032 static inline const uint8_t *dev_read_u8_array_ptr(const struct udevice *dev,
1033 const char *propname,
1036 return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz);
1039 static inline int dev_read_enabled(const struct udevice *dev)
1041 return fdtdec_get_is_enabled(gd->fdt_blob, dev_of_offset(dev));
1044 static inline int dev_read_resource(const struct udevice *dev, uint index,
1045 struct resource *res)
1047 return ofnode_read_resource(dev_ofnode(dev), index, res);
1050 static inline int dev_read_resource_byname(const struct udevice *dev,
1052 struct resource *res)
1054 return ofnode_read_resource_byname(dev_ofnode(dev), name, res);
1057 static inline u64 dev_translate_address(const struct udevice *dev,
1058 const fdt32_t *in_addr)
1060 return ofnode_translate_address(dev_ofnode(dev), in_addr);
1063 static inline u64 dev_translate_dma_address(const struct udevice *dev,
1064 const fdt32_t *in_addr)
1066 return ofnode_translate_dma_address(dev_ofnode(dev), in_addr);
1069 static inline int dev_get_dma_range(const struct udevice *dev, phys_addr_t *cpu,
1070 dma_addr_t *bus, u64 *size)
1072 return ofnode_get_dma_range(dev_ofnode(dev), cpu, bus, size);
1075 static inline int dev_read_alias_highest_id(const char *stem)
1077 if (!CONFIG_IS_ENABLED(OF_LIBFDT) || !gd->fdt_blob)
1079 return fdtdec_get_alias_highest_id(gd->fdt_blob, stem);
1082 static inline int dev_get_child_count(const struct udevice *dev)
1084 return ofnode_get_child_count(dev_ofnode(dev));
1087 static inline int dev_decode_display_timing(const struct udevice *dev,
1089 struct display_timing *config)
1091 return ofnode_decode_display_timing(dev_ofnode(dev), index, config);
1094 #endif /* CONFIG_DM_DEV_READ_INLINE */
1097 * dev_for_each_subnode() - Helper function to iterate through subnodes
1099 * This creates a for() loop which works through the subnodes in a device's
1102 * @subnode: ofnode holding the current subnode
1103 * @dev: device to use for interation (struct udevice *)
1105 #define dev_for_each_subnode(subnode, dev) \
1106 for (subnode = dev_read_first_subnode(dev); \
1107 ofnode_valid(subnode); \
1108 subnode = ofnode_next_subnode(subnode))
1111 * dev_for_each_property() - Helper function to iterate through property
1113 * This creates a for() loop which works through the property in a device's
1116 * @prop: struct ofprop holding the current property
1117 * @dev: device to use for interation (struct udevice *)
1119 #define dev_for_each_property(prop, dev) \
1120 for (int ret_prop = dev_read_first_prop(dev, &prop); \
1122 ret_prop = dev_read_next_prop(&prop))