On Thu, Mar 11, 2021 at 11:11:15PM +0100, Michael Walle wrote:
> Am 2021-03-11 17:15, schrieb Mark Brown:

> > The trick is figuring out if it's best to vary the input clock
> > or to use the FLL to adapt a fixed input clock,

> For simple-audio-card you can set the "clock" property if you want
> that clock to be changed/enabled/disabled. But that doesn't seem to
> be the way to go, at least it was NAKed by Rob for the audio-graph-card.
> I don't see a way to figure out if MCLK should be controlled by
> simple-*-card without adding further properties to the device tree.

If the card has a clock API clock as sysclk then set_sysclk(() should
be configuring that clock.