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);
28 for (entry = drv; entry != drv + n_ents; entry++) {
29 if (!strcmp(name, entry->name))
37 struct uclass_driver *lists_uclass_lookup(enum uclass_id id)
39 struct uclass_driver *uclass =
40 ll_entry_start(struct uclass_driver, uclass);
41 const int n_ents = ll_entry_count(struct uclass_driver, uclass);
42 struct uclass_driver *entry;
44 for (entry = uclass; entry != uclass + n_ents; entry++) {
52 int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only)
54 struct driver_info *info =
55 ll_entry_start(struct driver_info, driver_info);
56 const int n_ents = ll_entry_count(struct driver_info, driver_info);
57 struct driver_info *entry;
62 for (entry = info; entry != info + n_ents; entry++) {
63 ret = device_bind_by_name(parent, pre_reloc_only, entry, &dev);
64 if (ret && ret != -EPERM) {
65 dm_warn("No match for driver '%s'\n", entry->name);
66 if (!result || ret != -ENOENT)
74 int device_bind_driver(struct udevice *parent, const char *drv_name,
75 const char *dev_name, struct udevice **devp)
80 drv = lists_driver_lookup_name(drv_name);
82 printf("Cannot find driver '%s'\n", drv_name);
85 ret = device_bind(parent, drv, dev_name, NULL, -1, devp);
87 printf("Cannot create device named '%s' (err=%d)\n",
95 #ifdef CONFIG_OF_CONTROL
97 * driver_check_compatible() - Check if a driver is compatible with this node
99 * @param blob: Device tree pointer
100 * @param offset: Offset of node in device tree
101 * @param of_match: List of compatible strings to match
102 * @param of_idp: Returns the match that was found
103 * @return 0 if there is a match, -ENOENT if no match, -ENODEV if the node
104 * does not have a compatible string, other error <0 if there is a device
107 static int driver_check_compatible(const void *blob, int offset,
108 const struct udevice_id *of_match,
109 const struct udevice_id **of_idp)
117 while (of_match->compatible) {
118 ret = fdt_node_check_compatible(blob, offset,
119 of_match->compatible);
123 } else if (ret == -FDT_ERR_NOTFOUND) {
125 } else if (ret < 0) {
134 int lists_bind_fdt(struct udevice *parent, const void *blob, int offset,
135 struct udevice **devp)
137 struct driver *driver = ll_entry_start(struct driver, driver);
138 const int n_ents = ll_entry_count(struct driver, driver);
139 const struct udevice_id *id;
140 struct driver *entry;
147 dm_dbg("bind node %s\n", fdt_get_name(blob, offset, NULL));
150 for (entry = driver; entry != driver + n_ents; entry++) {
151 ret = driver_check_compatible(blob, offset, entry->of_match,
153 name = fdt_get_name(blob, offset, NULL);
154 if (ret == -ENOENT) {
156 } else if (ret == -ENODEV) {
157 dm_dbg("Device '%s' has no compatible string\n", name);
160 dm_warn("Device tree error at offset %d\n", offset);
165 dm_dbg(" - found match at '%s'\n", entry->name);
166 ret = device_bind(parent, entry, name, NULL, offset, &dev);
168 dm_warn("Error binding driver '%s'\n", entry->name);
179 if (!found && !result && ret != -ENODEV) {
180 dm_dbg("No match for node '%s'\n",
181 fdt_get_name(blob, offset, NULL));