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

[arnd@arndb.de (Arnd Bergmann)]

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

	Arnd