On Tue, Apr 09, 2019 at 01:45:58PM -0500, [email protected] wrote: > From: Richard Gong <[email protected]> > > Add a device tree binding for the Intel Stratix10 remote system > update (RSU) driver > > Signed-off-by: Richard Gong <[email protected]> > Reviewed-by: Alan Tull <[email protected]> > --- > .../bindings/firmware/intel,stratix10-rsu.txt | 31 > ++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/firmware/intel,stratix10-rsu.txt > > diff --git > a/Documentation/devicetree/bindings/firmware/intel,stratix10-rsu.txt > b/Documentation/devicetree/bindings/firmware/intel,stratix10-rsu.txt > new file mode 100644 > index 0000000..b6250eb > --- /dev/null > +++ b/Documentation/devicetree/bindings/firmware/intel,stratix10-rsu.txt > @@ -0,0 +1,31 @@ > +Intel Remote System Update Driver for Stratix10 SoC > +============================================ > +The Intel Remote System Update (RSU) driver exposes interfaces > +accessed through the Intel Service Layer to user space via sysfs > +interface. The RSU interfaces report and control some of the optional > +RSU features on Intel Stratix 10 SoC. > + > +The RSU feature provides a way for customers to update the boot > +configuration of a Intel Stratix 10 SoC device with significantly reduced > +risk of corrupting the bitstream storage and bricking the system. > + > +Required properties: > +------------------- > +The rsu node has the following mandatory properties, must be located under > +the firmware/svc node. > + > +- compatible: "intel,stratix10-rsu" > + > +Example: > +------- > + firmware { > + svc { > + compatible = "intel,stratix10-svc"; > + method = "smc"; > + memory-region = <&service_reserved>; > + > + rsu: rsu { > + compatible = "intel,stratix10-rsu";
There's no DT resources, so why does this need to be in DT. Just make the driver for the parent instantiate the driver for this. Rob
