Messages in this thread | | | Subject | Re: [PATCH v2 2/3] spi: Add HiSilicon v3xx SPI NOR flash controller driver | From | John Garry <> | Date | Mon, 13 Jan 2020 13:01:06 +0000 |
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On 13/01/2020 11:42, Mark Brown wrote: > On Mon, Jan 13, 2020 at 10:09:27AM +0000, John Garry wrote: >> On 10/01/2020 19:31, Andy Shevchenko wrote: > >>> PRP method is only for vendors to *test* the hardware in ACPI environment. >>> The proper method is to allocate correct ACPI ID. > >> Yes, that would seem the proper thing to do. So the SPI NOR driver is based >> on micron m25p80 and compatible string is "jedec,spi-nor", so I don't know >> who should or would do this registration. >
Hi Mark,
> The idiomatic approach appears to be for individual board vendors > to allocate IDs, you do end up with multiple IDs from multiple > vendors for the same thing.
So we see sort of approach a lot when vendors integrate 3rd party IP into a SoC and then assign some vendor specific ID for that.
But I am not sure how appropriate that same approach would be for some 3rd party memory part which we're simply wiring up on our board. Maybe it is.
> >> BTW, Do any of these sensors you mention have any ACPI standardization? > > In general there's not really much standardizaiton for devices, > the bindings that do exist aren't really centrally documented and > the Windows standard is just to have the basic device > registration in the firmware and do all properties based on > quirking based on DMI information. >
OK, so there is always DMI. I hoped to avoid this sort of thing in the linux driver :)
Cheers, John
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