RE: [EXT] Re: Issue: regmap: use debugfs even when no device

2019-05-29 Thread Andy Duan
From: Mark Brown Sent: Wednesday, May 29, 2019 7:16 PM > To: Andy Duan > Cc: da...@lechnology.com; raf...@kernel.org; Robby Cai > ; gre...@linuxfoundation.org; linux-kernel > > Subject: Re: [EXT] Re: Issue: regmap: use debugfs even when no device > > On Wed, May 29, 201

Re: [EXT] Re: Issue: regmap: use debugfs even when no device

2019-05-29 Thread Mark Brown
On Wed, May 29, 2019 at 01:33:46AM +, 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 an

RE: [EXT] Re: Issue: regmap: use debugfs even when no device

2019-05-28 Thread Andy Duan
From: Mark Brown Sent: Tuesday, May 28, 2019 9:27 PM > On Tue, May 28, 2019 at 02:20:15AM +, Andy Duan wrote: > > > So on i.MX8MM/8QM/8QXP platforms, we catch the issue that user dump > > regmap registers without power cause system hang. > > Maybe revert the patch is more reasonable ? > >