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Date: Thu, 2 Apr 2026 10:33:07 +0200
From: Krzysztof Kozlowski <krzk@kernel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>, 
	Jessica Zhang <jesszhan0024@gmail.com>, David Airlie <airlied@gmail.com>, 
	Simona Vetter <simona@ffwll.ch>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, 
	Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, 
	Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, 
	Conor Dooley <conor+dt@kernel.org>, Cong Yang <yangcong5@huaqin.corp-partner.google.com>, 
	Ondrej Jirman <megi@xff.cz>, Javier Martinez Canillas <javierm@redhat.com>, 
	Jagan Teki <jagan@edgeble.ai>, Liam Girdwood <lgirdwood@gmail.com>, 
	Mark Brown <broonie@kernel.org>, Linus Walleij <linusw@kernel.org>, 
	Bartosz Golaszewski <brgl@kernel.org>, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, 
	linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org
Subject: Re: [PATCH 04/19] dt-bindings: display/panel: ilitek,ili9881c:
 describe Waveshare panel
Message-ID: <20260402-divergent-active-mantis-95bd18@quoll>
References: <20260401-waveshare-dsi-touch-v1-0-5e9119b5a014@oss.qualcomm.com>
 <20260401-waveshare-dsi-touch-v1-4-5e9119b5a014@oss.qualcomm.com>
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In-Reply-To: <20260401-waveshare-dsi-touch-v1-4-5e9119b5a014@oss.qualcomm.com>

On Wed, Apr 01, 2026 at 10:26:23AM +0300, Dmitry Baryshkov wrote:
> Describe Waveshare 7" DSI panel which uses ILI9881 as a panel
> controller. This panel requires two voltags supplies, so add separate

typo, voltage supplies

> iovcc supply.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---
>  Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
> index d979701a00a8..42e35986fbf6 100644
> --- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
> @@ -24,6 +24,7 @@ properties:
>            - raspberrypi,dsi-7inch
>            - startek,kd050hdfia020
>            - tdo,tl050hdv35
> +          - waveshare,7.0-dsi-touch-a
>            - wanchanglong,w552946aaa
>            - wanchanglong,w552946aba
>        - const: ilitek,ili9881c
> @@ -34,6 +35,7 @@ properties:
>    backlight: true
>    port: true
>    power-supply: true
> +  iovcc-supply: true
>    reset-gpios: true
>    rotation: true

Move the allOf to place before additional/unevaluatedProps and disallow
it for other variants.

Unless you assume that all other devices also could have iovcc, but then
please mention it in the commit msg.

Best regards,
Krzysztof