Re: [PATCH v3 02/18] of: base: add of_parse_phandle_with_optional_args()

Am 2022-11-18 19:51, schrieb Michael Walle:

Add a new variant of the of_parse_phandle_with_args() which treats the
cells name as optional. If it's missing, it is assumed that the phandle
has no arguments.

Up until now, a nvmem node didn't have any arguments, so all the device
trees haven't any '#*-cells' property. But there is a need for an
additional argument for the phandle, for which we need a '#*-cells'
property. Therefore, we need to support nvmem nodes with and without
this property.

I've just noticed that this isn't enough. We also need to fix the 
parsing
in drivers/of/property.c, otherwise spurious device links will be 
created
because the phandle argument is treated as a phandle itself.

-michael