Re: [PATCH v2 3/3] drivers core: allow id match override when manually binding driver
From: Mark Brown
Date: Mon Jun 27 2016 - 16:32:46 EST
On Mon, Jun 27, 2016 at 09:40:38PM +0200, Michal Suchanek wrote:
> No. It's for buses that have some inherent identification. It's not for
> 1) generate random compatible and stick it in device tree
Don't generate a random compatible, generate one that accurately
describes your hardware.
> also AFAIK new_id is not automagic and not all buses have it.
Yes, this is the bit I've been trying to prompt you to implement rather
than going off doing something broken.
> So it would have to be implemented on SPI. How? On PCI new_id is a PCI
> id. What is it on SPI? ACPI PnP id? DT compatible? How do you tell?
Those sound like sensible ideas.
> And why when the bus does not even have IDs?
Identifiers are just a useful way of describing what the hardware is,
the fact that some of them can be read back from hardware isn't terribly
important here.
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