linux - Contrib clone of linux

Age	Commit message (Expand)	Author
2013-11-09	switch elf_core_write_extra_phdrs() to dump_emit()	Al Viro
2010-03-06	elf coredump: add extended numbering support	Daisuke HATAYAMA
2010-03-06	elf coredump: replace ELF_CORE_EXTRA_* macros by functions	Daisuke HATAYAMA

/* * ACPI support for platform bus type. * * Copyright (C) 2012, Intel Corporation * Authors: Mika Westerberg <mika.westerberg@linux.intel.com> * Mathias Nyman <mathias.nyman@linux.intel.com> * Rafael J. Wysocki <rafael.j.wysocki@intel.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/acpi.h> #include <linux/device.h> #include <linux/err.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_device.h> #include "internal.h" ACPI_MODULE_NAME("platform"); /* * The following ACPI IDs are known to be suitable for representing as * platform devices. */ static const struct acpi_device_id acpi_platform_device_ids[] = { { "PNP0D40" }, { "ACPI0003" }, { "VPC2004" }, { "BCM4752" }, /* Intel Smart Sound Technology */ { "INT33C8" }, { "80860F28" }, { } }; /** * acpi_create_platform_device - Create platform device for ACPI device node * @adev: ACPI device node to create a platform device for. * @id: ACPI device ID used to match @adev. * * Check if the given @adev can be represented as a platform device and, if * that's the case, create and register a platform device, populate its common * resources and returns a pointer to it. Otherwise, return %NULL. * * Name of the platform device will be the same as @adev's. */ int acpi_create_platform_device(struct acpi_device *adev, const struct acpi_device_id *id) { struct platform_device *pdev = NULL; struct acpi_device *acpi_parent; struct platform_device_info pdevinfo; struct resource_list_entry *rentry; struct list_head resource_list; struct resource *resources = NULL; int count; /* If the ACPI node already has a physical device attached, skip it. */ if (adev->physical_node_count) return 0; INIT_LIST_HEAD(&resource_list); count = acpi_dev_get_resources(adev, &resource_list, NULL, NULL); if (count < 0) { return 0; } else if (count > 0) { resources = kmalloc(count * sizeof(struct resource), GFP_KERNEL); if (!resources) { dev_err(&adev->dev, "No memory for resources\n"); acpi_dev_free_resource_list(&resource_list); return -ENOMEM; } count = 0; list_for_each_entry(rentry, &resource_list, node) resources[count++] = rentry->res; acpi_dev_free_resource_list(&resource_list); } memset(&pdevinfo, 0, sizeof(pdevinfo)); /* * If the ACPI node has a parent and that parent has a physical device * attached to it, that physical device should be the parent of the * platform device we are about to create. */ pdevinfo.parent = NULL; acpi_parent = adev->parent; if (acpi_parent) { struct acpi_device_physical_node *entry; struct list_head *list; mutex_lock(&acpi_parent->physical_node_lock); list = &acpi_parent->physical_node_list; if (!list_empty(list)) { entry = list_first_entry(list, struct acpi_device_physical_node, node); pdevinfo.parent = entry->dev; } mutex_unlock(&acpi_parent->physical_node_lock); } pdevinfo.name = dev_name(&adev->dev); pdevinfo.id = -1; pdevinfo.res = resources; pdevinfo.num_res = count; pdevinfo.acpi_node.companion = adev; pdev = platform_device_register_full(&pdevinfo); if (IS_ERR(pdev)) { dev_err(&adev->dev, "platform device creation failed: %ld\n", PTR_ERR(pdev)); pdev = NULL; } else { dev_dbg(&adev->dev, "created platform device %s\n", dev_name(&pdev->dev)); } kfree(resources); return 1; } static struct acpi_scan_handler platform_handler = { .ids = acpi_platform_device_ids, .attach = acpi_create_platform_device, }; void __init acpi_platform_init(void) { acpi_scan_add_handler(&platform_handler); }