2 * Copyright (c) 2013 Google, Inc
5 * Marek Vasut <marex@denx.de>
7 * SPDX-License-Identifier: GPL-2.0+
12 #include <dm/device.h>
13 #include <dm/device-internal.h>
15 #include <dm/platdata.h>
16 #include <dm/uclass.h>
19 #include <linux/compiler.h>
21 struct driver *lists_driver_lookup_name(const char *name)
24 ll_entry_start(struct driver, driver);
25 const int n_ents = ll_entry_count(struct driver, driver);
34 for (entry = drv; entry != drv + n_ents; entry++) {
35 if (strncmp(name, entry->name, len))
39 if (len == strlen(entry->name))
47 struct uclass_driver *lists_uclass_lookup(enum uclass_id id)
49 struct uclass_driver *uclass =
50 ll_entry_start(struct uclass_driver, uclass);
51 const int n_ents = ll_entry_count(struct uclass_driver, uclass);
52 struct uclass_driver *entry;
54 if ((id == UCLASS_INVALID) || !uclass)
57 for (entry = uclass; entry != uclass + n_ents; entry++) {
65 int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only)
67 struct driver_info *info =
68 ll_entry_start(struct driver_info, driver_info);
69 const int n_ents = ll_entry_count(struct driver_info, driver_info);
70 struct driver_info *entry;
75 for (entry = info; entry != info + n_ents; entry++) {
76 ret = device_bind_by_name(parent, pre_reloc_only, entry, &dev);
77 if (ret && ret != -EPERM) {
78 dm_warn("No match for driver '%s'\n", entry->name);
79 if (!result || ret != -ENOENT)
87 #ifdef CONFIG_OF_CONTROL
89 * driver_check_compatible() - Check if a driver is compatible with this node
91 * @param blob: Device tree pointer
92 * @param offset: Offset of node in device tree
93 * @param of_matchL List of compatible strings to match
94 * @return 0 if there is a match, -ENOENT if no match, -ENODEV if the node
95 * does not have a compatible string, other error <0 if there is a device
98 static int driver_check_compatible(const void *blob, int offset,
99 const struct udevice_id *of_match)
106 while (of_match->compatible) {
107 ret = fdt_node_check_compatible(blob, offset,
108 of_match->compatible);
111 else if (ret == -FDT_ERR_NOTFOUND)
121 int lists_bind_fdt(struct udevice *parent, const void *blob, int offset)
123 struct driver *driver = ll_entry_start(struct driver, driver);
124 const int n_ents = ll_entry_count(struct driver, driver);
125 struct driver *entry;
132 dm_dbg("bind node %s\n", fdt_get_name(blob, offset, NULL));
133 for (entry = driver; entry != driver + n_ents; entry++) {
134 ret = driver_check_compatible(blob, offset, entry->of_match);
135 name = fdt_get_name(blob, offset, NULL);
136 if (ret == -ENOENT) {
138 } else if (ret == -ENODEV) {
139 dm_dbg("Device '%s' has no compatible string\n", name);
142 dm_warn("Device tree error at offset %d\n", offset);
143 if (!result || ret != -ENOENT)
148 dm_dbg(" - found match at '%s'\n", entry->name);
149 ret = device_bind(parent, entry, name, NULL, offset, &dev);
151 dm_warn("Error binding driver '%s'\n", entry->name);
152 if (!result || ret != -ENOENT)
160 if (!found && !result && ret != -ENODEV) {
161 dm_dbg("No match for node '%s'\n",
162 fdt_get_name(blob, offset, NULL));