linux-kernel - Re: [PATCH v4 1/3] dt-bindings: display: Add Sitronix ST7571 LCD Controller

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Message-ID: <c82085a7-c725-4a26-82c1-817dac508916@kernel.org>
Date: Tue, 15 Apr 2025 09:22:30 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Marcus Folkesson <marcus.folkesson@...il.com>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/3] dt-bindings: display: Add Sitronix ST7571 LCD
 Controller

On 15/04/2025 07:58, Marcus Folkesson wrote:
> +title: Sitronix ST7571 Display Controller
> +
> +maintainers:
> +  - Marcus Folkesson <marcus.folkesson@...il.com>
> +
> +description:
> +  Sitronix ST7571 is a driver and controller for 4-level gray
> +  scale and monochrome dot matrix LCD panels.
> +
> +allOf:
> +  - $ref: panel/panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: sitronix,st7571
> +
> +  reg:
> +    maxItems: 1
> +
> +  sitronix,grayscale:
> +    type: boolean
> +    description:
> +      Display supports 4-level grayscale.

That's fully deducible from compatible, no? Or does it depend on actual
panel, but then what else depends on the panel?

Best regards,
Krzysztof