linux-kernel - Re: [PATCH 05/14] dt-bindings: trivial-devices: add GOcontroll Moduline IO modules

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Message-ID: <20250224204428.GA4050751-robh@kernel.org>
Date: Mon, 24 Feb 2025 14:44:28 -0600
From: Rob Herring <robh@...nel.org>
To: Maud Spierings <maudspierings@...ontroll.com>
Cc: Neil Armstrong <neil.armstrong@...aro.org>,
	Jessica Zhang <quic_jesszhan@...cinc.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Sam Ravnborg <sam@...nborg.org>, Liu Ying <victor.liu@....com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 05/14] dt-bindings: trivial-devices: add GOcontroll
 Moduline IO modules

On Mon, Feb 24, 2025 at 02:50:55PM +0100, Maud Spierings wrote:
> The main point of the Moduline series of embedded controllers is its
> ecosystem of IO modules, these currently are operated through the spidev
> interface. Ideally there will be a full dedicated driver in the future.
> 
> Add the gocontroll moduline-module-slot device to enable the required
> spidev interface.
> 
> Signed-off-by: Maud Spierings <maudspierings@...ontroll.com>
> ---
>  Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
> index 8255bb590c0cc619d15b27dcbfd3aa85389c0a54..24ba810f91b73efdc615c7fb46f771a300926f05 100644
> --- a/Documentation/devicetree/bindings/trivial-devices.yaml
> +++ b/Documentation/devicetree/bindings/trivial-devices.yaml
> @@ -107,6 +107,8 @@ properties:
>            - fsl,mpl3115
>              # MPR121: Proximity Capacitive Touch Sensor Controller
>            - fsl,mpr121
> +            # GOcontroll Moduline module slot for spi based IO modules

I couldn't find anything about SPI for GOcontroll Moduline. Can you 
point me to what this hardware looks like. Based on what I did find, 
this seems incomplete and not likely a trivial device.

> +          - gocontroll,moduline-module-slot
>              # Honeywell Humidicon HIH-6130 humidity/temperature sensor
>            - honeywell,hi6130
>              # IBM Common Form Factor Power Supply Versions (all versions)
> 
> -- 
> 2.48.1
>