On 3/12/2019 8:42 AM, Enrico Weigelt, metux IT consult wrote: > On 12.03.19 12:37, Thierry Reding wrote: > >> The driver currently doesn't request the memory described in the >> resource, so technically you're changing behaviour here and with your >> change the driver could now fail if somebody else has already claimed >> the memory. > > hmm, using w/o requesting/claiming - isn't that a bug ? Not necessarily, before regmap existed, you could have very well delegated a subset of a larger resource to a specific driver while a driver requesting that larger resource would be responsible for doing the request_mem_region(). As long as both drivers don't stomp on each other, this is a perfectly valid way to delegate, yet keep things modular/separate. -- Florian
