Am 2021-04-15 23:59, schrieb Rob Herring:
On Wed, Apr 14, 2021 at 05:43:49PM +0200, Andrew Lunn wrote:
On Wed, Apr 14, 2021 at 05:26:55PM +0200, Michael Walle wrote:
> It is already possible to read the MAC address via a NVMEM provider. But
> there are boards, esp. with many ports, which only have a base MAC
> address stored. Thus we need to have a way to provide an offset per
> network device.
We need to see what Rob thinks of this. There was recently a patchset
to support swapping the byte order of the MAC address in a NVMEM. Rob
said the NVMEM provider should have the property, not the MAC driver.
This does seems more ethernet specific, so maybe it should be an
Ethernet property?
There was also this one[1]. I'm not totally opposed, but don't want to
see a never ending addition of properties to try to describe any
possible transformation.
Agreed, that stuff like ASCII MAC address parsing should be done
elsewhere. But IMHO adding an offset is a pretty common one (as also
pointed out in [1]). And it also need to be a per ethernet device
property.
-michael
[1]
https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20200920095724.8251-4-ansuelsmth@xxxxxxxxx/
