From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752462AbaLSU2m (ORCPT ); Fri, 19 Dec 2014 15:28:42 -0500 Received: from mail-bn1bon0117.outbound.protection.outlook.com ([157.56.111.117]:44384 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751281AbaLSU2j (ORCPT ); Fri, 19 Dec 2014 15:28:39 -0500 X-Greylist: delayed 162703 seconds by postgrey-1.27 at vger.kernel.org; Fri, 19 Dec 2014 15:28:39 EST X-WSS-ID: 0NGUIUG-07-ZFI-02 X-M-MSG: From: Suravee Suthikulpanit To: , , , , , CC: , , , , , , , , "Suravee Suthikulpanit" Subject: [PATCH 2/2] ata: ahci_platform: Add ACPI _CLS matching Date: Fri, 19 Dec 2014 14:13:08 -0600 Message-ID: <1419019988-4398-3-git-send-email-Suravee.Suthikulpanit@amd.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1419019988-4398-1-git-send-email-Suravee.Suthikulpanit@amd.com> References: <1419019988-4398-1-git-send-email-Suravee.Suthikulpanit@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 Authentication-Results: spf=none (sender IP is 165.204.84.221) smtp.mailfrom=Suravee.Suthikulpanit@amd.com; X-Forefront-Antispam-Report: CIP:165.204.84.221;CTRY:US;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(10019020)(6009001)(428002)(199003)(189002)(20776003)(76176999)(48376002)(77156002)(229853001)(68736005)(84676001)(50986999)(62966003)(2201001)(92566001)(87936001)(64706001)(50466002)(86362001)(19580405001)(19580395003)(50226001)(53416004)(4396001)(2950100001)(77096005)(21056001)(97736003)(107046002)(46102003)(106466001)(120916001)(105586002)(101416001)(99396003)(36756003)(89996001)(31966008);DIR:OUT;SFP:1102;SCL:1;SRVR:BN1PR02MB198;H:atltwp01.amd.com;FPR:;SPF:None;MLV:sfv;PTR:InfoDomainNonexistent;A:1;MX:1;LANG:en; X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:BN1PR02MB198; X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:(601004);SRVR:BN1PR02MB198; X-Forefront-PRVS: 0430FA5CB7 X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:;SRVR:BN1PR02MB198; X-OriginatorOrg: amd4.onmicrosoft.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Dec 2014 20:13:31.1580 (UTC) X-MS-Exchange-CrossTenant-Id: fde4dada-be84-483f-92cc-e026cbee8e96 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=fde4dada-be84-483f-92cc-e026cbee8e96;Ip=[165.204.84.221] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN1PR02MB198 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds ACPI supports for AHCI platform driver, which uses _CLS method to match the device. The following is an example of ASL structure in DSDT for a SATA controller, which contains _CLS package to be matched by the ahci_platform driver: Device (AHC0) // AHCI Controller { Name(_HID, "AMDI0600") Name (_CCA, 1) Name (_CLS, Package (3) { 0x01, // Base Class: Mass Storage 0x06, // Sub-Class: serial ATA 0x01, // Interface: AHCI }) Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadWrite, 0xE0300000, 0x00010000) Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive,,,) { 387 } }) } Also, since ATA driver should not require PCI support for ATA_ACPI, this patch removes dependency in the driver/ata/Kconfig. Signed-off-by: Suravee Suthikulpanit --- drivers/ata/Kconfig | 2 +- drivers/ata/ahci_platform.c | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index cd4cccb..edb00c6 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -48,7 +48,7 @@ config ATA_VERBOSE_ERROR config ATA_ACPI bool "ATA ACPI Support" - depends on ACPI && PCI + depends on ACPI default y help This option adds support for ATA-related ACPI objects. diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c index 06f1d59..4879f9b 100644 --- a/drivers/ata/ahci_platform.c +++ b/drivers/ata/ahci_platform.c @@ -71,6 +71,8 @@ static const struct of_device_id ahci_of_match[] = { }; MODULE_DEVICE_TABLE(of, ahci_of_match); +static const struct acpi_device_cls ahci_cls = {0x01, 0x06, 0x01}; + static struct platform_driver ahci_driver = { .probe = ahci_probe, .remove = ata_platform_remove_one, @@ -78,6 +80,7 @@ static struct platform_driver ahci_driver = { .name = "ahci", .owner = THIS_MODULE, .of_match_table = ahci_of_match, + .acpi_cls = &ahci_cls, .pm = &ahci_pm_ops, }, }; -- 1.9.3