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97f3ee34b6
We should guide people more strongly towards device tree to avoid the proliferation of platform data structures. Add documentation to the driver model README, and also the platform data header file. Signed-off-by: Simon Glass <sjg@chromium.org>
43 lines
1.2 KiB
C
43 lines
1.2 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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* Marek Vasut <marex@denx.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _DM_PLATDATA_H
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#define _DM_PLATDATA_H
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#include <linker_lists.h>
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/**
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* struct driver_info - Information required to instantiate a device
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*
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* NOTE: Avoid using this except in extreme circumstances, where device tree
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* is not feasible (e.g. serial driver in SPL where <8KB of SRAM is
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* available). U-Boot's driver model uses device tree for configuration.
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*
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* @name: Driver name
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* @platdata: Driver-specific platform data
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*/
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struct driver_info {
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const char *name;
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const void *platdata;
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};
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/**
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* NOTE: Avoid using these except in extreme circumstances, where device tree
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* is not feasible (e.g. serial driver in SPL where <8KB of SRAM is
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* available). U-Boot's driver model uses device tree for configuration.
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*/
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#define U_BOOT_DEVICE(__name) \
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ll_entry_declare(struct driver_info, __name, driver_info)
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/* Declare a list of devices. The argument is a driver_info[] array */
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#define U_BOOT_DEVICES(__name) \
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ll_entry_declare_list(struct driver_info, __name, driver_info)
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#endif
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