Re: [V2 PATCH 0/2] Introduce ACPI support for ahci_platform driver

[Suravee Suthikulanit]

On 1/5/2015 5:24 PM, Rafael J. Wysocki wrote:
> On Monday, January 05, 2015 03:11:13 PM Suravee Suthikulpanit wrote:
> > 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 and tested with:
> >
> >      http://git.linaro.org/leg/acpi/acpi.git acpi-5.1-v7
> >
> > 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
> >
> > NOTE:
> > 	* PATCH 2/2 has already been Acked-by Tejun Heo in V1. I only made
> > 	  a minor renaming of the acpi_cls to acpi_match_cls for clarity
> > 	  in V2. It probably should be routed together with the PATCH 1/2
> > 	  (once acked) since it defines the new member in the struct.
> >
> > Changes 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 (2):
> >    ACPI / scan: Add support for ACPI _CLS device matching
> >    ata: ahci_platform: Add ACPI _CLS matching
> >
> >   drivers/acpi/scan.c             | 79 +++++++++++++++++++++++++++++++++++++++--
> >   drivers/ata/Kconfig             |  2 +-
> >   drivers/ata/ahci_platform.c     |  3 ++
> >   include/acpi/acnames.h          |  1 +
> >   include/linux/acpi.h            | 10 ++++++
> >   include/linux/device.h          |  1 +
> >   include/linux/mod_devicetable.h |  6 ++++
> >   7 files changed, 98 insertions(+), 4 deletions(-)
>
> I'll take care of this when I'm back from travels later this month.  Thanks!

Thanks Rafael.

Suravee

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