On Tue, Mar 23, 2021 at 10:03:18AM +0100, Thierry Reding wrote: > I agree. My understanding is the the TSC is basically an SoC-wide clock > that can be (and is) used by several hardware blocks. There's an > interface for software to read out the value, but it's part of a block > called TKE (time-keeping engine, if I recall correctly) that implements > various clock sources and watchdog functionality. ... > Anyway, I think given that the GTE doesn't provide that clock itself but > rather just a means of taking a snapshot of that clock and stamping > certain events with that, it makes more sense to provide that clock from > the TKE driver. It sounds like TKE + GTE together act like a PHC, and GTE doesn't need/want its own SW interface. Thanks, Richard
