From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suravee Suthikulpanit Subject: [V8 PATCH 0/3] Introduce ACPI support for ahci_platform driver Date: Mon, 30 Mar 2015 16:56:16 -0500 Message-ID: <1427752579-19234-1-git-send-email-Suravee.Suthikulpanit@amd.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail-bn1bon0140.outbound.protection.outlook.com ([157.56.111.140]:48480 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753442AbbC3V4b (ORCPT ); Mon, 30 Mar 2015 17:56:31 -0400 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: rjw@rjwysocki.net, mika.westerberg@linux.intel.com, robert.moore@intel.com, lv.zheng@intel.com, hanjun.guo@linaro.org Cc: lenb@kernel.org, hdegoede@redhat.com, tj@kernel.org, mjg59@srcf.ucam.org, gregkh@linuxfoundation.org, al.stone@linaro.org, graeme.gregory@linaro.org, leo.duran@amd.com, linux-ide@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linaro-acpi@lists.linaro.org, Suravee Suthikulpanit This patch series introduce ACPI support for AHCI platform driver. Existing ACPI support for AHCI assumes the device controller is a PCI device. Since there is no ACPI _CID for generic AHCI controller, the driver could not use it for matching devices. Therefore, this patch introduces a mechanism for drivers to match devices using ACPI _CLS method. _CLS contains PCI-defined class-code. This patch series also modifies ACPI modalias to add class-code to the exisiting format, which currently only uses _HID and _CIDs. This is required to support loadable modules w/ _CLS. This is rebased from and tested with: http://git.linaro.org/leg/acpi/acpi.git acpi-5.1-v11 This topic was discussed earlier here (as part of introducing support for AMD Seattle SATA controller): http://marc.info/?l=linux-arm-kernel&m=141083492521584&w=2 Changes from V7 (https://lkml.org/lkml/2015/3/26/592) * [1/3] Return AE_AML_OPERAND_TYPE when _CLS package containing invalid type (per Robert Moore suggestion). * [2/3] Fixed build error due missing ACPI_DEVICE_CLASS definition when disabling ACPI. Changes from V6 (https://lkml.org/lkml/2015/3/25/797) * Adding Acked-by Mika, and Reviewed-by Hanjun * Minor clen up to use lower case 0xffffff for cls_msk (per Mika suggestions). * Modify the ACPI_DEVICE_CLASS macro to use designated initializer (per Mika suggestions). Changes from V5 (https://lkml.org/lkml/2015/3/6/24) * Rebased and tested with acpi-5.1-v11 * Splitting up the ACPICA changes into a separate patch [1/3]. (per Mika suggestion) * Adding class-code mask support (per Mika suggestion) * Use macro to define struct acpi_device_id entry (per Mika suggestion) * Note: Mika also recommend reordering the member of struct acpi_device_id and define a macro to be used for declaring each table entry. This is a large amount of changes, and will be done separtely from this patch series. Changes from V4 (https://lkml.org/lkml/2015/3/2/56) * [1/2] Bug fixed: Reorder the declaration of struct acpi_pnp_device_id cls in the struct acpi_device_info (include/acpi/actypes.h) since compatible_id_list must be last one. * [2/2] Added Acked-by: Tejun Heo Changes from V3 (https://lkml.org/lkml/2015/2/8/106) * Instead of introducing new structure acpi_device_cls, add cls into the acpi_device_id, and modify the __acpi_match_device to also match for cls. (per Mika suggestion.) * Add loadable module support, which requires changes in ACPI modalias. (per Mika suggestion.) * Rebased and tested with acpi-5.1-v9 Changes from V2 (https://lkml.org/lkml/2015/1/5/662) * Update with review comment from Rafael in patch 1/2 * Rebased and tested with acpi-5.1-v8 Changes from V1 (https://lkml.org/lkml/2014/12/19/345) * Rebased to 3.19.0-rc2 * Change from acpi_cls in device_driver to acpi_match_cls (Hanjun comment) * Change the matching logic in acpi_driver_match_device() due to the new special PRP0001 _HID. * Simplify the return type of acpi_match_device_cls() to boolean. Changes from RFC (https://lkml.org/lkml/2014/12/17/446) * Remove #ifdef and make non-ACPI version of the acpi_match_device_cls as inline. (per Arnd) * Simplify logic to retrieve and evaluate _CLS handle. (per Hanjun) Suravee Suthikulpanit (3): ACPICA: Add ACPI _CLS processing ACPI / scan: Add support for ACPI _CLS device matching ata: ahci_platform: Add ACPI _CLS matching drivers/acpi/acpica/acutils.h | 3 ++ drivers/acpi/acpica/nsxfname.c | 21 +++++++++-- drivers/acpi/acpica/utids.c | 73 +++++++++++++++++++++++++++++++++++++++ drivers/acpi/scan.c | 36 ++++++++++++++++--- drivers/ata/Kconfig | 2 +- drivers/ata/ahci_platform.c | 9 +++++ include/acpi/acnames.h | 1 + include/acpi/actypes.h | 4 ++- include/linux/acpi.h | 14 ++++++++ include/linux/mod_devicetable.h | 2 ++ scripts/mod/devicetable-offsets.c | 2 ++ scripts/mod/file2alias.c | 32 +++++++++++++++-- 12 files changed, 189 insertions(+), 10 deletions(-) -- 2.1.0