linux-kernel - Re: [PATCH v3 6/6] arm64: dts: imx8mp-var-som: Add support for ADS7846 touchscreen

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Message-ID: <CAOMZO5AzuZVkD3rTLEDGFpCx0ovtKfzjZtNgGG0uLDXbPkiqRg@mail.gmail.com>
Date: Sun, 14 Dec 2025 09:04:38 -0300
From: Fabio Estevam <festevam@...il.com>
To: Stefano Radaelli <stefano.radaelli21@...il.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Stefano Radaelli <stefano.r@...iscite.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
	Pengutronix Kernel Team <kernel@...gutronix.de>, imx@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 6/6] arm64: dts: imx8mp-var-som: Add support for
 ADS7846 touchscreen

Hi Stefano,

On Sun, Dec 14, 2025 at 8:05 AM Stefano Radaelli
<stefano.radaelli21@...il.com> wrote:

> +       /* Resistive touch controller */
> +       ads7846: touchscreen@0 {
> +               compatible = "ti,ads7846";

The public datasheet states that the touchscreen is a TSC2046:

https://variscite.com/wp-content/uploads/2024/05/VAR-SOM-MX8M-PLUS_V2_Datasheet.pdf

I understand they are both from the same family of touchscreen
controllers, but shouldn't you use the ti,tsc2046 compatible string
instead?