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Date: Tue, 30 Apr 2024 17:50:33 +0100
From: Conor Dooley <conor@kernel.org>
To: Petar Stoykov <pd.pstoykov@gmail.com>
Cc: linux-iio@vger.kernel.org, Jonathan Cameron <jic23@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Rob Herring <robh+dt@kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Angel Iglesias <ang.iglesiasg@gmail.com>,
	Conor Dooley <conor+dt@kernel.org>, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: Re: [PATCH v2 1/3] dt-bindings: iio: pressure: Add Sensirion SDP500
Message-ID: <20240430-unnamable-wrench-16c9ad780df1@spud>
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On Tue, Apr 30, 2024 at 05:27:20PM +0200, Petar Stoykov wrote:
> From 60f5cc7f65b07124f19428a713c3bc33b9e4a7a7 Mon Sep 17 00:00:00 2001
> From: Petar Stoykov <pd.pstoykov@gmail.com>
> Date: Mon, 15 Jan 2024 14:29:25 +0100
> Subject: [PATCH 1/3] dt-bindings: iio: pressure: Add Sensirion SDP500
>=20
> Sensirion SDP500 is a digital differential pressure sensor. It provides
> a digital I2C output. Add devicetree bindings requiring the compatible
> string and I2C slave address (reg).
>=20
> Signed-off-by: Petar Stoykov <pd.pstoykov@gmail.com>
> ---
>  .../iio/pressure/sensirion,sdp500.yaml        | 39 +++++++++++++++++++
>  1 file changed, 39 insertions(+)
>  create mode 100644
> Documentation/devicetree/bindings/iio/pressure/sensirion,sdp500.yaml
>=20
> diff --git a/Documentation/devicetree/bindings/iio/pressure/sensirion,sdp=
500.yaml
> b/Documentation/devicetree/bindings/iio/pressure/sensirion,sdp500.yaml
> new file mode 100644
> index 000000000000..3cdf17df7d52
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/pressure/sensirion,sdp500.yaml
> @@ -0,0 +1,39 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/pressure/sdp500.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: sdp500/sdp510 pressure sensor with I2C bus interface
> +
> +maintainers:
> +  - Petar Stoykov <pd.pstoykov@gmail.com>
> +
> +description: |
> +  Pressure sensor from Sensirion with I2C bus interface.
> +  There is no software difference between sdp500 and sdp510.

I see no mention of the sdp510 elsewhere in this patch though..
If you're trying to add support for both, then add a compatible for the
sdp510 that falls back to the sdp500.

> +
> +properties:
> +  compatible:
> +    const: sensirion,sdp500
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false

Other than the fact that a fallback compatible might be required here,
this looks like a candidate for trivial-devices.yaml.

Cheers,
Conor.

> +
> +examples:
> +  - |
> +    i2c {
> +      #address-cells =3D <1>;
> +      #size-cells =3D <0>;
> +      pressure@40 {
> +        compatible =3D "sensirion,sdp500";
> +        reg =3D <0x40>;
> +        vdd-supply =3D <&foo>;
> +      };
> +    };
> --=20
> 2.30.2

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