Sorry for the late reply, Gmail considered your email spam, and I just found it there :-( On 28 August 2018 at 20:48, Mark Brown <broonie@xxxxxxxxxx> wrote: > On Tue, Aug 28, 2018 at 01:44:11PM +0200, Jonas Gorski wrote: >> If the pll clock needs to be enabled to get its rate, it will also need >> to be enabled to provide it. So ensure it is kept enabled through the >> lifetime of the device. > > Why not only when the device is in use, saving some power? It isn't a gated clock, there is no power to save. So far it's a (more or less) virtual fixed clock to pass the platform spezific Hz value to the driver without having to rely on platform data. The actual gated clock ("hsspi") is already disabled while not in use. Regards Jonas