501ca464e2
The check is wrong since it would have to check whether the new iomem region overlaps with an existing region. Checking for the base address only is not enough. Currently this is not possible because every device conflicts with the top iomem region which covers the whole address space. This at least fixes the regression that devices whose memory region begins at 0x0 can no longer be succesfully registered. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/*
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* bus.c - barebox driver model
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*
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* Copyright (c) 2009 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <driver.h>
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#include <errno.h>
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#include <init.h>
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static int platform_match(struct device_d *dev, struct driver_d *drv)
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{
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if (IS_ENABLED(CONFIG_OFDEVICE) && dev->device_node &&
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drv->of_compatible)
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return of_match(dev, drv);
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if (!strcmp(dev->name, drv->name))
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return 0;
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if (drv->id_table) {
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struct platform_device_id *id = drv->id_table;
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while (id->name) {
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if (!strcmp(id->name, dev->name)) {
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dev->id_entry = id;
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return 0;
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}
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id++;
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}
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}
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return -1;
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}
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static int platform_probe(struct device_d *dev)
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{
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return dev->driver->probe(dev);
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}
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static void platform_remove(struct device_d *dev)
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{
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dev->driver->remove(dev);
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}
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int platform_driver_register(struct driver_d *drv)
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{
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drv->bus = &platform_bus;
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return register_driver(drv);
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}
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int platform_device_register(struct device_d *new_device)
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{
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new_device->bus = &platform_bus;
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return register_device(new_device);
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}
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struct bus_type platform_bus = {
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.name = "platform",
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.match = platform_match,
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.probe = platform_probe,
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.remove = platform_remove,
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};
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static int plarform_init(void)
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{
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return bus_register(&platform_bus);
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}
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pure_initcall(plarform_init);
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