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

[Zhang Rui]

On ä, 2014-05-21 at 11:52 +0300, 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?

we do not enumerate everything below the first device by default, we
just enumerate all the devices with _HID.
But if a device has _HID and it is enumerated by its parents to a
separate bus, we need this flag set for its parent.

thanks,
rui

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