xref: /openbmc/u-boot/include/dm/lists.h (revision da4cfa6b)
1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright (c) 2013 Google, Inc
4  *
5  * (C) Copyright 2012
6  * Pavel Herrmann <morpheus.ibis@gmail.com>
7  */
8 
9 #ifndef _DM_LISTS_H_
10 #define _DM_LISTS_H_
11 
12 #include <dm/ofnode.h>
13 #include <dm/uclass-id.h>
14 
15 /**
16  * lists_driver_lookup_name() - Return u_boot_driver corresponding to name
17  *
18  * This function returns a pointer to a driver given its name. This is used
19  * for binding a driver given its name and platdata.
20  *
21  * @name: Name of driver to look up
22  * @return pointer to driver, or NULL if not found
23  */
24 struct driver *lists_driver_lookup_name(const char *name);
25 
26 /**
27  * lists_uclass_lookup() - Return uclass_driver based on ID of the class
28  * id:		ID of the class
29  *
30  * This function returns the pointer to uclass_driver, which is the class's
31  * base structure based on the ID of the class. Returns NULL on error.
32  */
33 struct uclass_driver *lists_uclass_lookup(enum uclass_id id);
34 
35 /**
36  * lists_bind_drivers() - search for and bind all drivers to parent
37  *
38  * This searches the U_BOOT_DEVICE() structures and creates new devices for
39  * each one. The devices will have @parent as their parent.
40  *
41  * @parent: parent device (root)
42  * @pre_reloc_only: If true, bind only drivers with the DM_FLAG_PRE_RELOC flag.
43  * If false bind all drivers.
44  */
45 int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only);
46 
47 /**
48  * lists_bind_fdt() - bind a device tree node
49  *
50  * This creates a new device bound to the given device tree node, with
51  * @parent as its parent.
52  *
53  * @parent: parent device (root)
54  * @node: device tree node to bind
55  * @devp: if non-NULL, returns a pointer to the bound device
56  * @pre_reloc_only: If true, bind only nodes with special devicetree properties,
57  * or drivers with the DM_FLAG_PRE_RELOC flag. If false bind all drivers.
58  * @return 0 if device was bound, -EINVAL if the device tree is invalid,
59  * other -ve value on error
60  */
61 int lists_bind_fdt(struct udevice *parent, ofnode node, struct udevice **devp,
62 		   bool pre_reloc_only);
63 
64 /**
65  * device_bind_driver() - bind a device to a driver
66  *
67  * This binds a new device to a driver.
68  *
69  * @parent:	Parent device
70  * @drv_name:	Name of driver to attach to this parent
71  * @dev_name:	Name of the new device thus created
72  * @devp:	If non-NULL, returns the newly bound device
73  */
74 int device_bind_driver(struct udevice *parent, const char *drv_name,
75 		       const char *dev_name, struct udevice **devp);
76 
77 /**
78  * device_bind_driver_to_node() - bind a device to a driver for a node
79  *
80  * This binds a new device to a driver for a given device tree node. This
81  * should only be needed if the node lacks a compatible strings.
82  *
83  * @parent:	Parent device
84  * @drv_name:	Name of driver to attach to this parent
85  * @dev_name:	Name of the new device thus created
86  * @node:	Device tree node
87  * @devp:	If non-NULL, returns the newly bound device
88  */
89 int device_bind_driver_to_node(struct udevice *parent, const char *drv_name,
90 			       const char *dev_name, ofnode node,
91 			       struct udevice **devp);
92 
93 #endif
94