linux-kernel - Re: [PATCH v4 2/2] devicetree: hwmon: shtc1: Add sensirion,shtc1.yaml

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Date:   Thu, 9 Jul 2020 10:51:07 -0600
From:   Rob Herring <robh@...nel.org>
To:     Chris Ruehl <chris.ruehl@...ys.com.hk>
Cc:     Jack Lo <jack.lo@...ys.com.hk>, devicetree@...r.kernel.org,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] devicetree: hwmon: shtc1: Add sensirion,shtc1.yaml

On Wed, Jul 08, 2020 at 12:07:47PM +0800, Chris Ruehl wrote:
> Add documentation for the newly added DTS support in the shtc1 driver.
> To align with the drivers logic to have high precision by default
> a boolean sensirion,low_precision is used to switch to low precision.
> 
> Signed-off-by: Chris Ruehl <chris.ruehl@...ys.com.hk>
> ---
>  .../bindings/hwmon/sensirion,shtc1.yaml       | 60 +++++++++++++++++++
>  1 file changed, 60 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml b/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml
> new file mode 100644
> index 000000000000..6725a7b646b7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml
> @@ -0,0 +1,60 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/sensirion,shtc1.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sensirion SHTC1 Humidity and Temperature Sensor IC
> +
> +maintainers:
> +  - chris.ruehl@...ys.com.hk
> +
> +description: |
> +  The SHTC1, SHTW1 and SHTC3 are digital humidity and temperature sensor
> +  designed especially for battery-driven high-volume consumer electronics
> +  applications.
> +  For further information refere to Documentation/hwmon/shtc1.rst
> +
> +  This binding document describes the binding for the hardware monitor
> +  portion of the driver.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - sensirion,shtc1
> +      - sensirion,shtw1
> +      - sensirion,shtc3
> +
> +  reg:
> +    maxItems: 1
> +    description: I2C address 0x70

If 0x70 is the only address, then do:

reg:
  const: 0x70

> +
> +  sensirion,blocking_io:

s/_/-/

> +    $ref: /schemas/types.yaml#definitions/flag
> +    description:
> +      If set the i2c bus hold until measure finished.
> +
> +  sensirion,low_precision:
> +    $ref: /schemas/types.yaml#definitions/flag

s/_/-/

> +    description:
> +      If set aquire data with low precision (not recommended).
> +      The driver aquire data with high precision by default.
> +
> +required:
> +  - compatible
> +  - reg
> +
> +examples:
> +  - |
> +    i2c1 {
> +      status = "okay";

Don't show status in examples.

> +      clock-frequency = <400000>;
> +
> +      shtc3@70 {
> +        compatible = "sensirion,shtc3";
> +        reg = <0x70>
> +        sensirion,blocking_io;
> +        status = "okay";
> +      };
> +    };
> +...
> -- 
> 2.20.1
>