Re: [PATCH 1/2] iio: adc128s052: allow driver to be matched using ACPI

From: Jonathan Cameron
Date: Tue Apr 24 2018 - 13:24:04 EST

On Sat, 21 Apr 2018 21:41:57 +0100
Javier Arteaga <javier@xxxxxxxxxx> wrote:

> Hi Jonathan,
> On Sat, Apr 21, 2018 at 04:54:41PM +0100, Jonathan Cameron wrote:
> > I don't really see the connection between the change in here
> > and what the description says...
> I think you're right, we didn't make our intent clear here.
> > If you are probing from ACPI then there is no need to ensure
> > a valid of table is supplied (even if we aren't building with OF)
> > which is what I think this patch is trying to do...
> The patch enables ACPI _DSD to reuse existing DT "compatible" strings,
> as described in Documentation/acpi/enumeration.txt, even without OF.
> This kind of patch has some precedent, like for example:
> 01427fe7c4b9 ("Input: adxl34x - make it enumerable in ACPI environment")
> To clarify, for the UP2 board we don't actually need this patch as we
> have an ACPI _HID - just thought it would might be an improvement for
> others.
> I'll improve the description and perhaps reorder this patch last for v2.
> Or I can send separately if you prefer.
> Thanks for your review!
Unless we know of ACPI firmwares out there that are doing this, drop the
patch for now. I don't want to see a flood of these based on a 'you can
do it that' way argument.


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