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5b9000dd25
Some device tree nodes do not have compatible strings but do require drivers. This is pretty rare, and somewhat unfortunate. Add a function to permit creation of a driver for any device tree node. Signed-off-by: Simon Glass <sjg@chromium.org>
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/*
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* Copyright (c) 2013 Google, Inc
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*
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* (C) Copyright 2012
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* Pavel Herrmann <morpheus.ibis@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _DM_LISTS_H_
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#define _DM_LISTS_H_
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#include <dm/uclass-id.h>
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/**
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* lists_driver_lookup_name() - Return u_boot_driver corresponding to name
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*
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* This function returns a pointer to a driver given its name. This is used
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* for binding a driver given its name and platdata.
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*
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* @name: Name of driver to look up
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* @return pointer to driver, or NULL if not found
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*/
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struct driver *lists_driver_lookup_name(const char *name);
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/**
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* lists_uclass_lookup() - Return uclass_driver based on ID of the class
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* id: ID of the class
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*
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* This function returns the pointer to uclass_driver, which is the class's
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* base structure based on the ID of the class. Returns NULL on error.
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*/
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struct uclass_driver *lists_uclass_lookup(enum uclass_id id);
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/**
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* lists_bind_drivers() - search for and bind all drivers to parent
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*
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* This searches the U_BOOT_DEVICE() structures and creates new devices for
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* each one. The devices will have @parent as their parent.
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*
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* @parent: parent device (root)
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* @early_only: If true, bind only drivers with the DM_INIT_F flag. If false
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* bind all drivers.
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*/
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int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only);
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/**
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* lists_bind_fdt() - bind a device tree node
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*
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* This creates a new device bound to the given device tree node, with
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* @parent as its parent.
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*
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* @parent: parent device (root)
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* @blob: device tree blob
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* @offset: offset of this device tree node
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* @devp: if non-NULL, returns a pointer to the bound device
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* @return 0 if device was bound, -EINVAL if the device tree is invalid,
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* other -ve value on error
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*/
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int lists_bind_fdt(struct udevice *parent, const void *blob, int offset,
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struct udevice **devp);
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/**
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* device_bind_driver() - bind a device to a driver
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*
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* This binds a new device to a driver.
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*
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* @parent: Parent device
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* @drv_name: Name of driver to attach to this parent
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* @dev_name: Name of the new device thus created
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* @devp: Returns the newly bound device
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*/
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int device_bind_driver(struct udevice *parent, const char *drv_name,
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const char *dev_name, struct udevice **devp);
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/**
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* device_bind_driver_to_node() - bind a device to a driver for a node
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*
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* This binds a new device to a driver for a given device tree node. This
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* should only be needed if the node lacks a compatible strings.
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*
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* @parent: Parent device
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* @drv_name: Name of driver to attach to this parent
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* @dev_name: Name of the new device thus created
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* @node: Device tree node
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* @devp: Returns the newly bound device
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*/
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int device_bind_driver_to_node(struct udevice *parent, const char *drv_name,
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const char *dev_name, int node,
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struct udevice **devp);
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#endif
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