This patch series introduce ACPI support for non-PCI AHCI platform driver. Existing ACPI support for AHCI assumes the device controller is a PCI device.
Also, since there is no ACPI _HID/_CID for generic AHCI controller, the driver could not use them for matching devices. Therefore, this patch introduces a mechanism for drivers to match devices using ACPI _CLS method.
This patch series is rebased from:
http://git.linaro.org/leg/acpi/acpi.git acpi-5.1-v6
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 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 (2): ACPI / scan: Add support for ACPI _CLS device matching ata: ahci_platform: Add ACPI _CLS matching
drivers/acpi/scan.c | 63 +++++++++++++++++++++++++++++++++++++++++ drivers/ata/Kconfig | 2 +- drivers/ata/ahci_platform.c | 3 ++ include/acpi/acnames.h | 1 + include/linux/acpi.h | 12 +++++++- include/linux/device.h | 1 + include/linux/mod_devicetable.h | 6 ++++ 7 files changed, 86 insertions(+), 2 deletions(-)