linux-kernel - Re: [PATCHv4 3/4] dt-bindings: mfd: da9052: support TSI as ADC

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Message-ID: <20170717112711.eskydrt4pu32v74g@earth>
Date:   Mon, 17 Jul 2017 13:27:11 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Support Opensource <support.opensource@...semi.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        devicetree@...r.kernel.org, linux-hwmon@...r.kernel.org,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv4 3/4] dt-bindings: mfd: da9052: support TSI as ADC

Hi Lee,

On Mon, Jul 17, 2017 at 11:49:45AM +0100, Lee Jones wrote:
> On Fri, 30 Jun 2017, Sebastian Reichel wrote:
> 
> > DA9052 allows using the touchscreen input pins as general purpose
> > analogue input pin by wiring analogue inputs to X+, X-, Y+ and Y-
> > and providing a reference voltage at TSIREF pin.
> > 
> > Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.co.uk>
> > ---
> >  Documentation/devicetree/bindings/mfd/da9052-i2c.txt | 8 ++++++++
> >  1 file changed, 8 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
> > index 9554292dc6cb..57fa74e65664 100644
> > --- a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
> > +++ b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
> > @@ -4,6 +4,14 @@ Required properties:
> >  - compatible : Should be "dlg,da9052", "dlg,da9053-aa",
> >  			 "dlg,da9053-ab", or "dlg,da9053-bb"
> >  
> > +Optional properties:
> > +- dlg,tsi-as-adc : Boolean, if set the X+, X-, Y+, Y- touchscreen
> > +                    input lines are used as general purpose analogue
> > +					input.
> > +- tsiref-supply: Phandle to the regulator, which provides the reference
> > +                 voltage for the TSIREF pin. Must be provided when the
> > +			     touchscreen pins are used for ADC purposes.
> > +
> 
> DT Ack please.

There is a v5 of this series, which has Acked-by from Rob already
and got positive feedback from Guenter Roeck for the hwmon parts:

http://lkml.iu.edu/hypermail/linux/kernel/1707.0/00518.html

(if you received v4, v5 should also be in your INBOX)

-- Sebastian

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