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Many drivers abuse the platform driver/bus system as it provides a simple way to create and bind a device to a driver-specific set of probe/release functions. Instead of doing that, and wasting all of the memory associated with a platform device, here is a "faux" bus that can be used instead. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Danilo Krummrich <dakr@kernel.org> Reviewed-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/2025021026-atlantic-gibberish-3f0c@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
43 lines
893 B
C
43 lines
893 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2002-3 Patrick Mochel
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* Copyright (c) 2002-3 Open Source Development Labs
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*/
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/memory.h>
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#include <linux/of.h>
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#include <linux/backing-dev.h>
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#include "base.h"
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/**
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* driver_init - initialize driver model.
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*
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* Call the driver model init functions to initialize their
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* subsystems. Called early from init/main.c.
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*/
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void __init driver_init(void)
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{
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/* These are the core pieces */
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bdi_init(&noop_backing_dev_info);
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devtmpfs_init();
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devices_init();
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buses_init();
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classes_init();
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firmware_init();
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hypervisor_init();
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/* These are also core pieces, but must come after the
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* core core pieces.
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*/
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faux_bus_init();
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of_core_init();
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platform_bus_init();
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auxiliary_bus_init();
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memory_dev_init();
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node_dev_init();
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cpu_dev_init();
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container_dev_init();
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}
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