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Message-ID: <20240817123034.30cc300e@jic23-huawei>
Date: Sat, 17 Aug 2024 12:30:34 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: wangshuaijie@...nic.com
Cc: lars@...afoo.de, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, kees@...nel.org, gustavoars@...nel.org,
 linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org,
 liweilei@...nic.com, kangjiajun@...nic.com, Krzysztof Kozlowski
 <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH V7 1/2] dt-bindings: iio: aw96103: Add bindings for
 aw96103/aw96105 sensor

On Wed, 14 Aug 2024 03:18:07 +0000
wangshuaijie@...nic.com wrote:

> From: shuaijie wang <wangshuaijie@...nic.com>
> 
> Add device tree bindings for aw96103/aw96105 proximity sensor.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Signed-off-by: shuaijie wang <wangshuaijie@...nic.com>
> ---
>  .../iio/proximity/awinic,aw96103.yaml         | 63 +++++++++++++++++++
>  1 file changed, 63 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/proximity/awinic,aw96103.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/proximity/awinic,aw96103.yaml b/Documentation/devicetree/bindings/iio/proximity/awinic,aw96103.yaml
> new file mode 100644
> index 000000000000..54b5bc176d5c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/proximity/awinic,aw96103.yaml
> @@ -0,0 +1,63 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/proximity/awinic,aw96103.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Awinic's AW96103 capacitive proximity sensor and similar
> +
> +maintainers:
> +  - Wang Shuaijie <wangshuaijie@...nic.com>
> +
> +description: |
> +  Awinic's AW96103/AW96105 proximity sensor.
> +  The specific absorption rate (SAR) is a metric that measures
> +  the degree of absorption of electromagnetic radiation emitted by
> +  wireless devices, such as mobile phones and tablets, by human tissue.
> +  In mobile phone applications, the proximity sensor is primarily
> +  used to detect the proximity of the human body to the phone. When the
> +  phone approaches the human body, it will actively reduce the transmit
> +  power of the antenna to keep the SAR within a safe range. Therefore,
> +  we also refer to the proximity sensor as a SAR sensor.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - awinic,aw96103
> +      - awinic,aw96105
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    description:
> +      Generated by the device to announce that a close/far
> +      proximity event has happened.
> +    maxItems: 1
> +
> +  vcc-supply:
> +    description:
> +      Optional regulator for chip, 1.7V-3.6V.
See comment on v6 which I sent before noticing there was a v7.
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - vcc-supply
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        proximity@12 {
> +            compatible = "awinic,aw96103";
> +            reg = <0x12>;
> +            interrupt-parent = <&gpio>;
> +            interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
> +            vcc-supply = <&pp1800_prox>;
> +        };
> +    };


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