Hi Rob,
> > + reg:
> > + items:
> > + - description: |
> > + 1st cell
> > + ========
> > +
> > + I2C address. 10 bit addressing is not supported. Devices with
> > + 10-bit address can't be properly passed through DEFSLVS command.
> > +
> > + 2nd cell
> > + ========
> > +
> > + Should be 0.
> > +
> > + 3rd cell
> > + ========
> > +
> > + Shall encode the I3C LVR (Legacy Virtual Register):
> > + bit[31:8]: unused/ignored
> > + bit[7:5]: I2C device index. Possible values:
> > + * 0: I2C device has a 50 ns spike filter
> > + * 1: I2C device does not have a 50 ns spike filter but supports
> > + high frequency on SCL
> > + * 2: I2C device does not have a 50 ns spike filter and is not
> > + tolerant to high frequencies
> > + * 3-7: reserved
> > + bit[4]: tell whether the device operates in FM (Fast Mode) or
> > + FM+ mode:
> > + * 0: FM+ mode
> > + * 1: FM mode
> > + bit[3:0]: device type
> > + * 0-15: reserved
>
> We can do a bit better:
>
> reg:
> items:
> - items: # Note: drop the '-' if we support more than 1 entry
> - description: I2C address...
> maximum: 0x7f # Not sure this works, do we support the high
> # flag bits here?
> - const: 0
> - description: I3C LVR (Legacy Virtual Register)...
I definitely think that it is a good move to properly define the fact
that we can accept only a single reg entry with three cells -and their
content, overall-, but this syntax does not work and I really don't find
the right way to describe it.
The error I get is:
---8<---
reg:
items:
- items:
- description: first item
- description: second item
--->8---
schemas/i3c/i3c.yaml: ignoring, error in schema: patternProperties: @[0-9a-f]+$: properties: reg
<path>/i3c.yaml: patternProperties:@[0-9a-f]+$:properties:reg: 'anyOf' conditional failed, one must be fixed:
'maxItems' is a required property
'items' is not one of ['maxItems', 'description', 'deprecated']
'items' is not one of ['description', 'deprecated', 'const', 'enum', 'minimum', 'maximum', 'default', '$ref']
<path>/i3c.yaml: patternProperties:@[0-9a-f]+$:properties:reg:items: 'oneOf' conditional failed, one must be fixed:
[{'items': [{'description': 'first item'}, {'description': 'second item'}]}] is not of type 'object'
'items' is not one of ['description', 'deprecated', 'const', 'enum', 'minimum', 'maximum', 'default', '$ref']
I tried defining a phandle array, playing with the dashes, using allOf,
adding maxItems, none of it worked so far so any advice will be highly
appreciated!
Thanks,
Miquèl
