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From: Andy Duan <fugang.duan@nxp.com>
To: Mark Brown <broonie@kernel.org>
Cc: "david@lechnology.com" <david@lechnology.com>,
	"rafael@kernel.org" <rafael@kernel.org>,
	Robby Cai <robby.cai@nxp.com>,
	"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: RE: [EXT] Re: Issue: regmap: use debugfs even when no device
Date: Thu, 30 May 2019 04:56:22 +0000	[thread overview]
Message-ID: <VI1PR0402MB36007B2A40344C69BACA13B7FF180@VI1PR0402MB3600.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <20190529111554.GO2456@sirena.org.uk>

From: Mark Brown <broonie@kernel.org> Sent: Wednesday, May 29, 2019 7:16 PM
> To: Andy Duan <fugang.duan@nxp.com>
> Cc: david@lechnology.com; rafael@kernel.org; Robby Cai
> <robby.cai@nxp.com>; gregkh@linuxfoundation.org; linux-kernel
> <linux-kernel@vger.kernel.org>
> 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. 

      reply	other threads:[~2019-05-30  4:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <VI1PR0402MB3600F0FB1A031BE502588C93FF1E0@VI1PR0402MB3600.eurprd04.prod.outlook.com>
2019-05-28 13:26 ` Mark Brown
2019-05-29  1:33   ` [EXT] " Andy Duan
2019-05-29 11:15     ` Mark Brown
2019-05-30  4:56       ` Andy Duan [this message]

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