Re: [PATCH V6 09/11] ACPI: introduce flag .is_master_device

[Rafael J. Wysocki]

On Wednesday, May 21, 2014 11:52:07 AM Mika Westerberg wrote:
> On Thu, May 15, 2014 at 02:44:14PM +0800, Zhang Rui wrote:
> > For some ACPI device objects, they represent master devices,
> > and their children devices are enumerated by bus controller drivers
> > for the buses they are on.
> > 
> > In this case, we do not want to enumerate their children devices to
> > platform bus explicitly in acpi scan code.
> > 
> > Thus a new flag .is_master_device is introduced in this patch.
> > 
> > For devices with this flag set, we will not do default enumeration
> > for their children.
> 
> Is there any particular reason we would like to enumerate everything
> below the first device by default?

Yes, there is.  Device objects without _ADR under the PCI host bridge.

Or we can skip the children under every *platform* device created by this by
default and mark the ones where we want the children to be enumerated as
platform devices too in a special way if needed.

I guess we could try that (that was the Rui's original idea IIRC).

Rafael

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