Re: [PATCH 1/2] ACPI / scan: Apply default enumeration to devices with ACPI drivers

From: Mika Westerberg
Date: Tue Apr 18 2017 - 06:21:42 EST


On Mon, Apr 17, 2017 at 01:19:50AM +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> The current code in acpi_bus_attach() is inconsistent with respect
> to device objects with ACPI drivers bound to them, as it allows
> ACPI drivers to bind to device objects with existing "physical"
> device companions, but it doesn't allow "physical" device objects
> to be created for ACPI device objects with ACPI drivers bound to
> them. Thus, in some cases, the outcome depends on the ordering
> of events which is confusing at best.
>
> For this reason, modify acpi_bus_attach() to call
> acpi_default_enumeration() for device objects with the
> pnp.type.platform_id flag set regardless of whether or not
> any ACPI drivers are bound to them.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>