On Thu, Jan 03, 2019 at 03:30:14PM -0800, Brian Norris wrote: > On Fri, Dec 28, 2018 at 10:18:18AM +0530, Sibi Sankar wrote: > > +- firmware-name: > > + Usage: optional > > + Value type: <string> > > + Definition: must list the relative firmware image path for the > > + Hexagon Core. > > Relative to what? I still think it's a terrible idea that your driver > looks for files at the top-level /lib/firmware/ directory, but now > you're leaking this into the device tree. This should at a bare minimum > be namespaced to something like the qcom/ sub-directory. But ideally, > the driver would automatically be deriving a further sub-directory of > qcom/ based on the chipset or something, and then the only thing you'd > describe here is some kind of variant string -- something akin to > ath10k's qcom,ath10k-calibration-variant (see > Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt), which > doesn't require a full path-name or any hierarchy. Oh, I see Rob actually recommended this binding in v1, and it's (sort of) in use by a few other drivers. Is it really expected that we put arbitrary pathnames in device tree? None of the binding documentation seems very specific to me, and their implementations *do* allow arbitrary text. As it stands today, this is a great recipe for name collision -- e.g., how the driver today suggests "modem.XYZ" names; is Qualcomm really the only one out there making modems? :D So my natural instinct is to avoid this. But if that's what everybody wants... Brian
