linux-kernel - Re: [PATCH v2 2/3] dt-bindings: iio: adc: mcp3911: add reset-gpios

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Message-ID: <20250428-alfalfa-caring-ee2eb658b8da@spud>
Date: Mon, 28 Apr 2025 17:40:38 +0100
From: Conor Dooley <conor@...nel.org>
To: Marcus Folkesson <marcus.folkesson@...il.com>
Cc: Kent Gustavsson <kent@...oris.se>, Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kent Gustavsson <nedo80@...il.com>, devicetree@...r.kernel.org,
	Lukas Rauber <lukas.rauber@...itza.de>
Subject: Re: [PATCH v2 2/3] dt-bindings: iio: adc: mcp3911: add reset-gpios

On Mon, Apr 28, 2025 at 08:54:12AM +0200, Marcus Folkesson wrote:
> The MCP391X family provides an active low reset signal that is still not
> described in the bindings.
> 
> Add reset-gpios to the bindings and the example.
> 
> Co-developed-by: Lukas Rauber <lukas.rauber@...itza.de>
> Signed-off-by: Lukas Rauber <lukas.rauber@...itza.de>
> Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com>

Acked-by: Conor Dooley <conor.dooley@...rochip.com>

> ---
>  Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
> index 06951ec5f5da381a9bb942d0ac7416128eebd3bc..3a69ec60edb915ae16312b94fddd32f5c87f37a7 100644
> --- a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
> @@ -32,6 +32,9 @@ properties:
>    spi-max-frequency:
>      maximum: 20000000
>  
> +  reset-gpios:
> +    maxItems: 1
> +
>    clocks:
>      description: |
>        Phandle and clock identifier for external sampling clock.
> @@ -71,6 +74,7 @@ unevaluatedProperties: false
>  
>  examples:
>    - |
> +    #include <dt-bindings/gpio/gpio.h>
>      spi {
>        #address-cells = <1>;
>        #size-cells = <0>;
> @@ -80,6 +84,7 @@ examples:
>          reg = <0>;
>          interrupt-parent = <&gpio5>;
>          interrupts = <15 2>;
> +        reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
>          spi-max-frequency = <20000000>;
>          microchip,device-addr = <0>;
>          vref-supply = <&vref_reg>;
> 
> -- 
> 2.49.0
> 

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