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Date: Thu, 6 Jun 2019 11:13:52 +0000
From: "Ardelean, Alexandru" <alexandru.Ardelean@...log.com>
To: "renatogeh@...il.com" <renatogeh@...il.com>,
"jic23@...nel.org" <jic23@...nel.org>
CC: "Popa, Stefan Serban" <StefanSerban.Popa@...log.com>,
"kernel-usp@...glegroups.com" <kernel-usp@...glegroups.com>,
"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
"mark.rutland@....com" <mark.rutland@....com>,
"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
"lars@...afoo.de" <lars@...afoo.de>,
"knaack.h@....de" <knaack.h@....de>,
"Hennerich, Michael" <Michael.Hennerich@...log.com>,
"pmeerw@...erw.net" <pmeerw@...erw.net>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] dt-bindings: iio: adc: add adi,ad7780.yaml
binding
On Wed, 2019-06-05 at 17:35 -0300, Renato Lui Geh wrote:
> [External]
>
>
> On 05/26, Jonathan Cameron wrote:
> > On Fri, 24 May 2019 22:26:30 -0300
> > Renato Lui Geh <renatogeh@...il.com> wrote:
> >
> > > This patch adds a YAML binding for the Analog Devices AD7780/1 and
> > > AD7170/1 analog-to-digital converters.
> > >
> > > Signed-off-by: Renato Lui Geh <renatogeh@...il.com>
> > Looks good to me, but I'm still finding my feet with these so will
> > leave it for a few days for others to have time to comment.
> >
> > Michael, looking for a quick reply from you to say if you are happy
> > being explicitly listed as maintainer for this one, or if you'd
> > rather land it on someone else. Same applies for patch 2.
> >
> > Renato, if I seem to have forgotten this in a week or so, feel
> > free to give me a poke. I've been known to loose patches entirely!
>
> Hi Jonathan,
>
> Just here to give you a poke. :)
>
> By the way, in these cases, which would be easier for you? To send you
> an email like I'm doing right now on last week's thread; or to resend
> the entire patch(set)?
>
I think in this case, maybe let's wait a bit longer.
Jonathan has not been active recently.
I think a [RESEND] would be a good idea when he gets back/active and misses your patchset.
Thanks
Alex
> Thanks,
> Renato
> > Thanks,
> >
> > Jonathan
> > > ---
> > > Changes in v2:
> > > - vref-supply to avdd-supply
> > > - remove avdd-supply from required list
> > > - include adc block in an spi block
> > >
> > > .../bindings/iio/adc/adi,ad7780.txt | 48 ----------
> > > .../bindings/iio/adc/adi,ad7780.yaml | 87 +++++++++++++++++++
> > > 2 files changed, 87 insertions(+), 48 deletions(-)
> > > delete mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt
> > > create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
> > >
> > > diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt
> > > b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt
> > > deleted file mode 100644
> > > index 440e52555349..000000000000
> > > --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt
> > > +++ /dev/null
> > > @@ -1,48 +0,0 @@
> > > -* Analog Devices AD7170/AD7171/AD7780/AD7781
> > > -
> > > -Data sheets:
> > > -
> > > -- AD7170:
> > > - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7170.pdf
> > > -- AD7171:
> > > - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7171.pdf
> > > -- AD7780:
> > > - * https://www.analog.com/media/en/technical-documentation/data-sheets/ad7780.pdf
> > > -- AD7781:
> > > - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7781.pdf
> > > -
> > > -Required properties:
> > > -
> > > -- compatible: should be one of
> > > - * "adi,ad7170"
> > > - * "adi,ad7171"
> > > - * "adi,ad7780"
> > > - * "adi,ad7781"
> > > -- reg: spi chip select number for the device
> > > -- vref-supply: the regulator supply for the ADC reference voltage
> > > -
> > > -Optional properties:
> > > -
> > > -- powerdown-gpios: must be the device tree identifier of the PDRST pin. If
> > > - specified, it will be asserted during driver probe. As the
> > > - line is active high, it should be marked GPIO_ACTIVE_HIGH.
> > > -- adi,gain-gpios: must be the device tree identifier of the GAIN pin. Only for
> > > - the ad778x chips. If specified, it will be asserted during
> > > - driver probe. As the line is active low, it should be marked
> > > - GPIO_ACTIVE_LOW.
> > > -- adi,filter-gpios: must be the device tree identifier of the FILTER pin. Only
> > > - for the ad778x chips. If specified, it will be asserted
> > > - during driver probe. As the line is active low, it should be
> > > - marked GPIO_ACTIVE_LOW.
> > > -
> > > -Example:
> > > -
> > > -adc@0 {
> > > - compatible = "adi,ad7780";
> > > - reg = <0>;
> > > - vref-supply = <&vdd_supply>
> > > -
> > > - powerdown-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
> > > - adi,gain-gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
> > > - adi,filter-gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
> > > -};
> > > diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
> > > b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
> > > new file mode 100644
> > > index 000000000000..d1109416963c
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
> > > @@ -0,0 +1,87 @@
> > > +# SPDX-License-Identifier: GPL-2.0
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/iio/adc/adi,ad7780.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Analog Devices AD7170/AD7171/AD7780/AD7781 analog to digital converters
> > > +
> > > +maintainers:
> > > + - Michael Hennerich <michael.hennerich@...log.com>
> > > +
> > > +description: |
> > > + The ad7780 is a sigma-delta analog to digital converter. This driver provides
> > > + reading voltage values and status bits from both the ad778x and ad717x series.
> > > + Its interface also allows writing on the FILTER and GAIN GPIO pins on the
> > > + ad778x.
> > > +
> > > + Specifications on the converters can be found at:
> > > + AD7170:
> > > + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7170.pdf
> > > + AD7171:
> > > + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7171.pdf
> > > + AD7780:
> > > + https://www.analog.com/media/en/technical-documentation/data-sheets/ad7780.pdf
> > > + AD7781:
> > > + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7781.pdf
> > > +
> > > +properties:
> > > + compatible:
> > > + enum:
> > > + - adi,ad7170
> > > + - adi,ad7171
> > > + - adi,ad7780
> > > + - adi,ad7781
> > > +
> > > + reg:
> > > + maxItems: 1
> > > +
> > > + avdd-supply:
> > > + description:
> > > + The regulator supply for the ADC reference voltage.
> > > + maxItems: 1
> > > +
> > > + powerdown-gpios:
> > > + description:
> > > + Must be the device tree identifier of the PDRST pin. If
> > > + specified, it will be asserted during driver probe. As the
> > > + line is active high, it should be marked GPIO_ACTIVE_HIGH.
> > > + maxItems: 1
> > > +
> > > + adi,gain-gpios:
> > > + description:
> > > + Must be the device tree identifier of the GAIN pin. Only for
> > > + the ad778x chips. If specified, it will be asserted during
> > > + driver probe. As the line is active low, it should be marked
> > > + GPIO_ACTIVE_LOW.
> > > + maxItems: 1
> > > +
> > > + adi,filter-gpios:
> > > + description:
> > > + Must be the device tree identifier of the FILTER pin. Only
> > > + for the ad778x chips. If specified, it will be asserted
> > > + during driver probe. As the line is active low, it should be
> > > + marked GPIO_ACTIVE_LOW.
> > > + maxItems: 1
> > > +
> > > +required:
> > > + - compatible
> > > + - reg
> > > +
> > > +examples:
> > > + - |
> > > + #include <dt-bindings/gpio/gpio.h>
> > > + spi0 {
> > > + #address-cells = <1>;
> > > + #size-cells = <0>;
> > > +
> > > + adc@0 {
> > > + compatible = "adi,ad7780";
> > > + reg = <0>;
> > > +
> > > + avdd-supply = <&vdd_supply>;
> > > + powerdown-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
> > > + adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
> > > + adi,filter-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>;
> > > + };
> > > + };
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