From: Mark Brown <[email protected]> Sent: Wednesday, May 29, 2019 7:16 PM > To: Andy Duan <[email protected]> > Cc: [email protected]; [email protected]; Robby Cai > <[email protected]>; [email protected]; linux-kernel > <[email protected]> > Subject: Re: [EXT] Re: Issue: regmap: use debugfs even when no device > > On Wed, May 29, 2019 at 01:33:46AM +0000, Andy Duan wrote: > > > Correct, regmap without device also has issue when power if off, > > because regmap doesn't implement runtime pm for the device, but maybe > > device driver implement the runtime pm for the device. > > > So regmap how to manage the clock and power when access registers by > debugfs ? > > Like I say the basic recommendation is to use a cache.
Got it, thanks.

