linux-kernel - Re: [PATCH v2 1/2] dt-bindings: iio: humidity: Add si7020 bindings

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Message-ID: <20220513174700.00005ef4@Huawei.com>
Date:   Fri, 13 May 2022 17:47:00 +0100
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     Eddie James <eajames@...ux.ibm.com>
CC:     <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <robh+dt@...nel.org>,
        <lars@...afoo.de>, <jic23@...nel.org>, <miltonm@...ibm.com>,
        David Barksdale <dbarksdale@...ogix.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: iio: humidity: Add si7020 bindings

On Thu, 12 May 2022 12:08:57 -0500
Eddie James <eajames@...ux.ibm.com> wrote:

> On 5/12/22 11:51, Jonathan Cameron wrote:
> > On Thu, 12 May 2022 11:20:19 -0500
> > Eddie James <eajames@...ux.ibm.com> wrote:
> >  
> >> Document the si7020 bindings with a new "silabs,skip-reset" property.
> >>
> >> Signed-off-by: Eddie James <eajames@...ux.ibm.com>
> >> ---
> >>   .../bindings/iio/humidity/silabs,si7020.yaml  | 47 +++++++++++++++++++
> >>   .../devicetree/bindings/trivial-devices.yaml  |  2 -
> >>   2 files changed, 47 insertions(+), 2 deletions(-)
> >>   create mode 100644 Documentation/devicetree/bindings/iio/humidity/silabs,si7020.yaml
> >>
> >> diff --git a/Documentation/devicetree/bindings/iio/humidity/silabs,si7020.yaml b/Documentation/devicetree/bindings/iio/humidity/silabs,si7020.yaml
> >> new file mode 100644
> >> index 000000000000..9bee010f8d56
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/iio/humidity/silabs,si7020.yaml
> >> @@ -0,0 +1,47 @@
> >> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> >> +%YAML 1.2
> >> +---
> >> +$id: http://devicetree.org/schemas/iio/humidity/silabs,si7020.yaml#
> >> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> >> +
> >> +title: SI7020 humidity + temperature sensor
> >> +
> >> +maintainers:
> >> +  - David Barksdale <dbarksdale@...ogix.com>  
> > At least cc David if you are going to commit him to maintaining this binding :)
> > +CC David at that address.  
> 
> 
> Yes, my mail to him for v1 was undeliverable... I guess I should put 
> myself instead.
> 

That's the best answer :)
(backup is to rely on the fallback which is me but I'd definitely rather bindings
had attentive maintainers where possible!).

> 
> >  
> >> +
> >> +description: |
> >> +   The Silicon Labs Si7013/20/21 Relative Humidity and Temperature Sensors
> >> +   are i2c devices which have an identical programming interface for
> >> +   measuring relative humidity and temperature.
> >> +
> >> +properties:
> >> +  compatible:
> >> +    const: silabs,si7020
> >> +
> >> +  reg:
> >> +    maxItems: 1
> >> +
> >> +  siliabs,skip-reset:
> >> +    $ref: /schemas/types.yaml#/definitions/flag
> >> +    description:
> >> +      Disables resetting of the device during probe
> >> +
> >> +required:
> >> +  - compatible
> >> +  - reg
> >> +
> >> +additionalProperties: false
> >> +
> >> +examples:
> >> +  - |
> >> +    i2c0 {
> >> +      #address-cells = <1>;
> >> +      #size-cells = <0>;
> >> +
> >> +      si7021-a20@40 {
> >> +        silabs,skip-reset;
> >> +        compatible = "silabs,si7020";
> >> +        reg = <0x40>;
> >> +      };
> >> +    };
> >> +...
> >> diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
> >> index e5295faef52f..47a00b478867 100644
> >> --- a/Documentation/devicetree/bindings/trivial-devices.yaml
> >> +++ b/Documentation/devicetree/bindings/trivial-devices.yaml
> >> @@ -317,8 +317,6 @@ properties:
> >>             - sensortek,stk8ba50
> >>               # SGX Sensortech VZ89X Sensors
> >>             - sgx,vz89x
> >> -            # Relative Humidity and Temperature Sensors
> >> -          - silabs,si7020
> >>               # Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply
> >>             - skyworks,sky81452
> >>               # Socionext SynQuacer TPM MMIO module