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);
31 for (entry = drv; entry != drv + n_ents; entry++) {
32 if (!strcmp(name, entry->name))
40 struct uclass_driver *lists_uclass_lookup(enum uclass_id id)
42 struct uclass_driver *uclass =
43 ll_entry_start(struct uclass_driver, uclass);
44 const int n_ents = ll_entry_count(struct uclass_driver, uclass);
45 struct uclass_driver *entry;
47 if ((id == UCLASS_INVALID) || !uclass)
50 for (entry = uclass; entry != uclass + n_ents; entry++) {
58 int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only)
60 struct driver_info *info =
61 ll_entry_start(struct driver_info, driver_info);
62 const int n_ents = ll_entry_count(struct driver_info, driver_info);
63 struct driver_info *entry;
68 for (entry = info; entry != info + n_ents; entry++) {
69 ret = device_bind_by_name(parent, pre_reloc_only, entry, &dev);
70 if (ret && ret != -EPERM) {
71 dm_warn("No match for driver '%s'\n", entry->name);
72 if (!result || ret != -ENOENT)
80 int device_bind_driver(struct udevice *parent, const char *drv_name,
81 const char *dev_name, struct udevice **devp)
86 drv = lists_driver_lookup_name(drv_name);
88 printf("Cannot find driver '%s'\n", drv_name);
91 ret = device_bind(parent, drv, dev_name, NULL, -1, devp);
93 printf("Cannot create device named '%s' (err=%d)\n",
101 #ifdef CONFIG_OF_CONTROL
103 * driver_check_compatible() - Check if a driver is compatible with this node
105 * @param blob: Device tree pointer
106 * @param offset: Offset of node in device tree
107 * @param of_match: List of compatible strings to match
108 * @param of_idp: Returns the match that was found
109 * @return 0 if there is a match, -ENOENT if no match, -ENODEV if the node
110 * does not have a compatible string, other error <0 if there is a device
113 static int driver_check_compatible(const void *blob, int offset,
114 const struct udevice_id *of_match,
115 const struct udevice_id **of_idp)
123 while (of_match->compatible) {
124 ret = fdt_node_check_compatible(blob, offset,
125 of_match->compatible);
129 } else if (ret == -FDT_ERR_NOTFOUND) {
131 } else if (ret < 0) {
140 int lists_bind_fdt(struct udevice *parent, const void *blob, int offset,
141 struct udevice **devp)
143 struct driver *driver = ll_entry_start(struct driver, driver);
144 const int n_ents = ll_entry_count(struct driver, driver);
145 const struct udevice_id *id;
146 struct driver *entry;
153 dm_dbg("bind node %s\n", fdt_get_name(blob, offset, NULL));
156 for (entry = driver; entry != driver + n_ents; entry++) {
157 ret = driver_check_compatible(blob, offset, entry->of_match,
159 name = fdt_get_name(blob, offset, NULL);
160 if (ret == -ENOENT) {
162 } else if (ret == -ENODEV) {
163 dm_dbg("Device '%s' has no compatible string\n", name);
166 dm_warn("Device tree error at offset %d\n", offset);
167 if (!result || ret != -ENOENT)
172 dm_dbg(" - found match at '%s'\n", entry->name);
173 ret = device_bind(parent, entry, name, NULL, offset, &dev);
175 dm_warn("Error binding driver '%s'\n", entry->name);
186 if (!found && !result && ret != -ENODEV) {
187 dm_dbg("No match for node '%s'\n",
188 fdt_get_name(blob, offset, NULL));