[PATCH] ata: ahci_platform: Add ACPI support for APM X-Gene AHCI controller v3 hardware.

Arnd Bergmann
2016-06-22T10:18:33Z

On Tuesday, June 21, 2016 4:31:38 PM CEST Suman Tripathi wrote:
> On Tue, Jun 21, 2016 at 11:08 AM, Suman Tripathi <stripathi@apm.com> wrote:
> > On Wed, Jun 15, 2016 at 11:54 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> >>
> >> On Wednesday, June 15, 2016 5:44:00 PM CEST suman-tripathi wrote:
> >> > This patch adds ACPI support for APM X-Gene AHCI controller in
> >> > ahci_platform driver for v3 hardware. APM X-Gene AHCI controller
> >> > v3 hardware is fully compliant with ahci_platform driver and requires
> >> > no workaround quirk.
> >> >
> >> > Signed-off-by: Suman Tripathi <stripathi@apm.com>
> >> > ---
> >> > drivers/ata/ahci_platform.c | 1 +
> >> > 1 files changed, 1 insertions(+), 0 deletions(-)
> >> >
> >> > diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
> >> > index 62a04c8..3395baf 100644
> >> > --- a/drivers/ata/ahci_platform.c
> >> > +++ b/drivers/ata/ahci_platform.c
> >> > @@ -86,6 +86,7 @@ MODULE_DEVICE_TABLE(of, ahci_of_match);
> >> >
> >> > static const struct acpi_device_id ahci_acpi_match[] = {
> >> > { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
> >> > + { "APMC0D33", 0},
> >> > {},
> >> > };
> >> > MODULE_DEVICE_TABLE(acpi, ahci_acpi_match);
> >> >
> >>
> >> Doesn't the ACPI_DEVICE_CLASS entry take care of this? I thought it had been
> >
> >
> > yeah it also works. Just thought that we need something different as
> > our's is a non-PCI SATA.
>
> Are you suggesting to introduce a new class ACPI_DEVICE_CLASS for
> non-pci ahci ? or to reuse the existing PCI_CLASS_STORAGE_SATA_AHCI ?

This was specifically introduced for non-PCI devices, so it should
just work.

Arnd