From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhang Rui Subject: [PATCH V4 07/11] ACPI: use platform bus as the default bus for _HID enumeration Date: Mon, 17 Mar 2014 15:49:36 +0800 Message-ID: <1395042580-3344-8-git-send-email-rui.zhang@intel.com> References: <1395042580-3344-1-git-send-email-rui.zhang@intel.com> Return-path: Received: from mga02.intel.com ([134.134.136.20]:45253 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932374AbaCQHuS (ORCPT ); Mon, 17 Mar 2014 03:50:18 -0400 In-Reply-To: <1395042580-3344-1-git-send-email-rui.zhang@intel.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: bhelgaas@google.com, matthew.garrett@nebula.com, rafael.j.wysocki@intel.com, dmitry.torokhov@gmail.com, Zhang Rui Because of the growing demand for enumerating ACPI devices to platform bus, this patch changes the code to enumerate ACPI devices with _HID to platform bus by default, unless the device already has a scan handler attached. Signed-off-by: Zhang Rui --- drivers/acpi/acpi_platform.c | 28 ---------------------------- drivers/acpi/scan.c | 12 ++++++------ 2 files changed, 6 insertions(+), 34 deletions(-) diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index dbfe49e..33376a9 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -22,24 +22,6 @@ 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. @@ -125,13 +107,3 @@ int acpi_create_platform_device(struct acpi_device *adev, 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); -} diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index e41b5e6..c0456e7 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2028,14 +2028,15 @@ static int acpi_scan_attach_handler(struct acpi_device *device) handler = acpi_scan_match_handler(hwid->id, &devid); if (handler) { ret = handler->attach(device, devid); - if (ret > 0) { + if (ret > 0) device->handler = handler; - break; - } else if (ret < 0) { - break; - } + if (ret) + goto end; } } +end: + if (device->pnp.type.platform_id && !device->handler) + acpi_create_platform_device(device, NULL); return ret; } @@ -2191,7 +2192,6 @@ int __init acpi_scan_init(void) acpi_pci_root_init(); acpi_pci_link_init(); acpi_processor_init(); - acpi_platform_init(); acpi_lpss_init(); acpi_cmos_rtc_init(); acpi_container_init(); -- 1.7.9.5