On Fri, Feb 11, 2022 at 07:01:42AM -0600, Rob Herring wrote: > On Thu, Jan 27, 2022 at 07:21:04PM +0200, Vladimir Oltean wrote: > > The LS1028A-QDS QIXIS FPGA has no problem working with the > > simple-mfd-i2c.c driver, so extend the list of compatible strings to > > include that part. > > > > Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx> > > --- > > Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml > > index eb3b43547cb6..8c1216eb36ee 100644 > > --- a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml > > +++ b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml > > @@ -16,7 +16,9 @@ description: | > > > > properties: > > compatible: > > - const: kontron,sl28cpld > > + enum: > > + - fsl,ls1028a-qds-qixis-i2c > > + - kontron,sl28cpld > > Is there some relationship between these besides happening to use the > same driver? Sharing a generic driver is not a reason to have the same > binding doc. > > Your DT has a mux-controller which is undocuemnted in this binding. > > Rob I'd guess they are both programmable FPGA's/CPLD's that are used for board control. What I don't know is whether the sources for the Kontron bit stream are derived in any way from the QIXIS. I can look into adding a separate binding doc for the QIXIS anyway.