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

Suman Tripathi
2016-06-21T18:08:28Z

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.
>
> added specifically for this purpose. It doesn't seem right to add vendor
> specific entries for generic hardware in each generic driver.
>
> Arnd