From: Greg KH <gr...@kr...> - 2004-11-08 23:17:16
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On Mon, Nov 08, 2004 at 12:11:11PM +0800, Li Shaohua wrote: > Hi, > This is the device core change required. Add .platform_bind method for > bus_type, so platform can do addition things when add a new device. A > case is ACPI, we want to utilize some ACPI methods for physical devices. > 1. Why doesn't use 'platform_notify'? > Current device core has a 'platform_notify' mechanism, but it's not > sufficient for this. Only sepcific bus type know how to parse dev.bus_id > and know how to encode specific device's address into ACPI _ADR syntax. I don't see why platform_notify is not sufficient. This is the exact reason it was added to the code. > 2. Why adds new 'handle' in 'struct device'? > 'Platform_data' is the best candidate, but a search shows some drivers > have used it. We can remove 'handle' after the drivers changes their > behavior. No, fix the drivers. Don't add something that you are going to remove later. thanks, greg k-h |