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From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Harald Geyer <harald@ccbib.org>
Cc: Jonathan Cameron <jic23@kernel.org>, <linux-iio@vger.kernel.org>,
	"Rob Herring" <robh+dt@kernel.org>
Subject: Re: [PATCH 04/29] dt-bindings:iio:humidity:dht11 yaml conversion
Date: Mon, 12 Oct 2020 15:29:21 +0100
Message-ID: <20201012142921.00007a4d@Huawei.com> (raw)
In-Reply-To: <20e7bc0e3f7e55587e431ad97dcca4b5@ccbib.org>

On Sun, 11 Oct 2020 18:52:48 +0100
Harald Geyer <harald@ccbib.org> wrote:

> On 11.10.2020 18:07, Jonathan Cameron wrote:
> > From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> >
> > The conversion is straight forward, but leaves an open question.
> > The compatible for this device has never had a vendor. I suspect
> > this because it is non-obvious who actually makes the module. It is
> > resold by numerous vendors and it may be that there is no single 
> > vendor
> > of the parts they are using.  If anyone has any more info on the
> > vendor, please let me know and we can add a more informative
> > compatible.  
> 
> I think these parts come from Aosong: http://www.aosong.com/en/
> 
> The DHT11 uses a custom protocol, so I don't think other vendors
> would be using this. Even Aosong started using i2c by now.
> 
> On the other hand DHT11 seems to be more of a trade name then a
> part identifier. The latter probably would be something like
> aosong,am2302 (trade name DHT22).
> 
> However the matching between identifiers and trade names is
> confusing for the older products. I'm not sure if it is worth
> digging into this. Probably only the people at aosong could
> clear this up.

Probably worth adding a note to the binding doc so I'll do that
whilst applying or for a v2 if needed.  Thanks for the info!

> 
> Anyway, you have my:
> Acked-By: Harald Geyer <harald@ccbib.org>
> 
> Thanks,
> Harald
> 
> > Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> > Cc: Harald Geyer <harald@ccbib.org>
> > ---
> >  .../bindings/iio/humidity/dht11.txt           | 14 -------
> >  .../bindings/iio/humidity/dht11.yaml          | 41 
> > +++++++++++++++++++
> >  2 files changed, 41 insertions(+), 14 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/iio/humidity/dht11.txt
> > b/Documentation/devicetree/bindings/iio/humidity/dht11.txt
> > deleted file mode 100644
> > index ecc24c199fd6..000000000000
> > --- a/Documentation/devicetree/bindings/iio/humidity/dht11.txt
> > +++ /dev/null
> > @@ -1,14 +0,0 @@
> > -* DHT11 humidity/temperature sensor (and compatibles like DHT22)
> > -
> > -Required properties:
> > -  - compatible: Should be "dht11"
> > -  - gpios: Should specify the GPIO connected to the sensor's data
> > -    line, see "gpios property" in
> > -    Documentation/devicetree/bindings/gpio/gpio.txt.
> > -
> > -Example:
> > -
> > -humidity_sensor {
> > -	compatible = "dht11";
> > -	gpios = <&gpio0 6 0>;
> > -}
> > diff --git
> > a/Documentation/devicetree/bindings/iio/humidity/dht11.yaml
> > b/Documentation/devicetree/bindings/iio/humidity/dht11.yaml
> > new file mode 100644
> > index 000000000000..38ec4c302760
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/humidity/dht11.yaml
> > @@ -0,0 +1,41 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/humidity/dht11.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: DHT11 humidity + temperature sensor
> > +
> > +maintainers:
> > +  - Harald Geyer <harald@ccbib.org>
> > +
> > +description: |
> > +   A simple and low cost module providing a non standard single GPIO 
> > based
> > +   interface.  Whilst commonly available it is not easy to establish
> > if there
> > +   is a single manufacturer for this part.
> > +
> > +properties:
> > +  compatible:
> > +    const: dht11
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  gpios:
> > +    maxItems: 1
> > +    description:
> > +      Single, interrupt capable, GPIO used to communicate with the 
> > device.
> > +
> > +required:
> > +  - compatible
> > +  - gpios
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    humidity_sensor {
> > +        compatible = "dht11";
> > +        gpios = <&gpio0 6 0>;
> > +    };
> > +...  
> 



  reply index

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-11 17:07 [PATCH 00/29] dt-bindings:iio: Another set of yaml conversions Jonathan Cameron
2020-10-11 17:07 ` [PATCH 01/29] dt-bindings:iio:humidity:hdc100x Drop separate doc + add to trivial-devices Jonathan Cameron
2020-10-12 16:29   ` Matt Ranostay
2020-10-11 17:07 ` [PATCH 02/29] dt-bindings:iio:humidity:htu21 " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 03/29] dt-bindings:iio:humidity:st,hts221 yaml conversion Jonathan Cameron
2020-10-11 17:07 ` [PATCH 04/29] dt-bindings:iio:humidity:dht11 " Jonathan Cameron
2020-10-11 17:52   ` Harald Geyer
2020-10-12 14:29     ` Jonathan Cameron [this message]
2020-10-11 17:07 ` [PATCH 05/29] dt-bindings:iio:pressure:ms5637 Drop separate doc + add to trivial-devices Jonathan Cameron
2020-10-11 17:07 ` [PATCH 06/29] dt-bindings:iio:pressure:murata,zpa2326 yaml conversion Jonathan Cameron
2020-10-11 17:07 ` [PATCH 07/29] dt-bindings:iio:pressure:meas,ms5611 " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 08/29] dt-bindings:iio:pressure:hoperf,hp03 " Jonathan Cameron
2020-10-12 13:06   ` Rob Herring
2020-10-12 14:31     ` Jonathan Cameron
2020-10-11 17:07 ` [PATCH 09/29] dt-bindings:iio:proximity:semtech,sx9500 " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 10/29] dt-bindings:iio:proximity:st,vl53l0x " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 11/29] dt-bindings:iio:proximity:ams,as3935 " Jonathan Cameron
2020-10-12 16:37   ` Matt Ranostay
2020-10-11 17:07 ` [PATCH 12/29] dt-bindings:iio:dac:ti,dac5571 " Jonathan Cameron
2020-10-11 17:47   ` Sean Nyekjaer
2020-10-18  9:58     ` Jonathan Cameron
2020-10-18 15:06       ` Sean Nyekjaer
2020-10-11 17:07 ` [PATCH 13/29] dt-bindings:iio:dac:ti,dac7311 " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 14/29] dt-bindings:iio:dac:ti,dac7512 " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 15/29] dt-bindings:iio:dac:ti,dac7612 " Jonathan Cameron
2020-10-15  8:49   ` Ricardo Ribalda Delgado
2020-10-18 17:41     ` Jonathan Cameron
2020-10-11 17:07 ` [PATCH 16/29] dt-bindings:iio:dac:ti,dac082s085 " Jonathan Cameron
2020-10-28 20:31   ` Lukas Wunner
2020-10-29 15:50     ` Jonathan Cameron
2020-10-29 19:10       ` Lukas Wunner
2020-10-31 11:02         ` Jonathan Cameron
2020-10-31 13:07       ` Jonathan Cameron
2020-10-11 17:07 ` [PATCH 17/29] dt-bindings:iio:dac:adi,ad7303 " Jonathan Cameron
2020-10-11 17:13   ` Lars-Peter Clausen
2020-10-18 17:43     ` Jonathan Cameron
2020-10-11 17:07 ` [PATCH 18/29] dt-bindings:iio:dac:maxim,ds4424 " Jonathan Cameron
2020-10-18 17:47   ` Jonathan Cameron
2020-10-11 17:07 ` [PATCH 19/29] dt-bindings:iio:dac:fsl,vf610-dac " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 20/29] dt-bindings:iio:dac:microchip,mcp4725 " Jonathan Cameron
2020-10-12 14:02   ` Tomas Novotny
2020-10-12 14:39     ` Jonathan Cameron
2020-10-14  8:57       ` Tomas Novotny
2020-10-11 17:07 ` [PATCH 21/29] dt-bindings:iio:dac:maxim,max5821 " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 22/29] dt-bindings:iio:dac:nxp,lpc1850-dac " Jonathan Cameron
2020-10-18 17:52   ` Jonathan Cameron
2020-10-18 18:44   ` Vladimir Zapolskiy
2020-10-11 17:07 ` [PATCH 23/29] dt-bindings:iio:dac:adi,ad5758 " Jonathan Cameron
2020-10-11 17:07 ` [PATCH 24/29] dt-bindings:iio:temperature:melexis,mlx90614 " Jonathan Cameron
2020-10-11 21:00   ` Crt Mori
2020-10-12  8:00     ` Crt Mori
2020-10-12 14:25       ` Jonathan Cameron
2020-10-11 17:07 ` [PATCH 25/29] dt-bindings:iio:temperature:melexis,mlx90632 conversion to yaml Jonathan Cameron
2020-10-11 21:01   ` Crt Mori
2020-10-11 17:07 ` [PATCH 26/29] dt-bindings:iio:temperature:meas,tsys01 move to trivial-devices.yaml Jonathan Cameron
2020-10-11 17:07 ` [PATCH 27/29] dt-bindings:iio:temperature:maxim,max31856 yaml conversion Jonathan Cameron
2020-10-11 17:07 ` [PATCH 28/29] dt-bindings:iio:temperature:maxim_thermocouple.txt to maxim,max31855k.yaml Jonathan Cameron
2020-10-12 16:40   ` Matt Ranostay
2020-10-11 17:07 ` [PATCH 29/29] dt-bindings:iio:temperature:ti,tmp07 yaml conversion Jonathan Cameron
2020-10-13  8:22   ` Manivannan Sadhasivam
2020-10-12 13:20 ` [PATCH 00/29] dt-bindings:iio: Another set of yaml conversions Rob Herring
2020-10-12 14:33   ` Jonathan Cameron

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