Re: [PATCH v2] i2c: Add generic support passing secondary devices addresses

From: Mika Westerberg
Date: Tue Apr 19 2016 - 08:40:43 EST


On Mon, Apr 18, 2016 at 05:26:54PM +0200, Lars-Peter Clausen wrote:
> A generic API by indexes wont work. The order between DT and ACPI will most
> likely be different. I'd even assume that the order will be different with
> ACPI for the same device on different platforms.

Yes, unfortunately that might be possible.

> If we want to support ACPI over the same interface drivers need to provide a
> lookup table that maps a name to the index.

Indeed something like we already have with GPIOs. The lookup table could
be filled from names in _DSD where it is available.