Messages in this thread | | | Date | Wed, 21 May 2014 13:59:13 +0200 | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH V6 09/11] ACPI: introduce flag .is_master_device |
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On 5/21/2014 1:04 PM, Mika Westerberg wrote: > On Wed, May 21, 2014 at 01:10:33PM +0200, Rafael J. Wysocki wrote: >> 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. > OK. > >> 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). > That sounds better to me. > > I wonder if we can do this analogous to of_platform_bus_probe() and > friends?
Yes, we should actually.
Rafael
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