On Fri, Mar 29, 2019 at 4:22 AM Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx> wrote: > > On Thu, Mar 28, 2019 at 12:46:15PM -0500, Rob Herring wrote: > > On Thu, Mar 28, 2019 at 01:09:36PM +0000, Charles Keepax wrote: > > > Lochnagar is an evaluation and development board for Cirrus > > > Logic Smart CODEC and Amp devices. It allows the connection of > > > most Cirrus Logic devices on mini-cards, as well as allowing > > > connection of various application processor systems to provide a > > > full evaluation platform. This driver supports the board > > > controller chip on the Lochnagar board. > > > > > > Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx> > > > --- > > > +Required properties: > > > + > > > + - compatible : One of the following strings: > > > + "cirrus,lochnagar2-hwmon" > > > + > > > +Example: > > > + > > > +lochnagar-hwmon { > > > + compatible = "cirrus,lochnagar2-hwmon"; > > > > You don't have any resources in DT, the parent MFD driver can just > > instantiate this child device. > > > > + Lee Jones > > Lee, was very very keen for me to not mix mfd_add_devices and > of_platform_populate in the MFD driver. As such we moved all the > sub-drivers into DT. I agree it is a little odd that this exists > only to bind in this driver but I think it is probably a bit late > to change that. If we were going to have the MFD instantiating > children directly a lot of the rest of the binding would have > been done very differently. Okay. This is why I don't like incomplete examples... Reviewed-by: Rob Herring <robh@xxxxxxxxxx>