From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthias Brugger Subject: Re: [PATCH] dt-bindings: MediaTek: Add binding document for the AUXADC Date: Thu, 17 Mar 2016 16:39:44 +0100 Message-ID: <56EACFC0.5000300@gmail.com> References: <1455866326-15095-1-git-send-email-s.hauer@pengutronix.de> <20160223203254.GA14660@rob-hp-laptop> <56CDBFFE.9050406@gmail.com> <20160224151204.GP3939@pengutronix.de> <56CDF7AB.7050201@gmail.com> <20160307065233.GA21851@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160307065233.GA21851-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sascha Hauer Cc: Rob Herring , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Daniel Kurtz , linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: linux-mediatek@lists.infradead.org Hi Sascha, On 07/03/16 07:52, Sascha Hauer wrote: > On Wed, Feb 24, 2016 at 07:34:19PM +0100, Matthias Brugger wrote: >> >> >> On 24/02/16 16:12, Sascha Hauer wrote: >>> Hi Matthias, >>> >>> On Wed, Feb 24, 2016 at 03:36:46PM +0100, Matthias Brugger wrote: >>>> >>>> >>>> On 23/02/16 21:32, Rob Herring wrote: >>>>> On Fri, Feb 19, 2016 at 08:18:46AM +0100, Sascha Hauer wrote: >>>>>> Signed-off-by: Sascha Hauer >>>>>> --- >>>>>> >>>>>> This is a supplement to the MTK Thermal series which was lacking the >>>>>> description for the AUXADC. >>>>> >>>>> So it will be applied with that I presume. >>>>> >>>>> Acked-by: Rob Herring >>>>> >>>> >>>> Well the basic problem that I see is, that the auxadc has some more >>>> registers (at least in mt6589) for the touch screen registers. >>>> So this makes it a candidate for syscon and regmap. >>>> But this needs a patch in the thermal driver first... >>> >>> When we want to have a driver for the auxadc we are free to write one. >>> No need to use syscon and/or regmap for it. >>> >>> Note that the auxadc is not used by the thermal *driver*, it's used by >>> the thermal *hardware*. It's the hardware that directly reads/writes >>> auxadc registers. If MTK did it right then a real auxadc driver should >>> not be disturbed by the thermal controller accesses. At least from >> >> Right, didn't realize this. >> >>> checking the datasheet the registers the thermal controller accesses >>> are completely orthogonal to the ones a auxadc driver would use. >>> >> >> As you already explained, syscon/regmap is not needed here. Just for >> completion: we already had completely orthogonal registers for the reset >> controller, and we decided to use regmap there as well. >> We should stay consistent on this. > > Matthias, is this some kind of action topic for me? We can use regmap > for the AUXADC driver if we want to, I have no problem with that. > No, no need for that, I will take the patch as is. I will let you know when it got queued. Sorry for the delay. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html