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Date: Fri, 22 May 2026 16:02:57 +0200
From: Francesco Dolcini <francesco@dolcini.it>
To: Laurentiu Mihalcea <laurentiumihalcea111@gmail.com>
Cc: Bjorn Andersson <andersson@kernel.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Frank Li <Frank.Li@nxp.com>,
	Sascha Hauer <s.hauer@pengutronix.de>, Peng Fan <peng.fan@nxp.com>,
	Fabio Estevam <festevam@gmail.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org,
	imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5] arm64: dts: freescale: imx95-toradex-smarc: move CM7
 node to SoC DTSI
Message-ID: <20260522140257.GA93826@francesco-nb>
References: <20260522111849.783-1-laurentiumihalcea111@gmail.com>
 <20260522111849.783-4-laurentiumihalcea111@gmail.com>
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In-Reply-To: <20260522111849.783-4-laurentiumihalcea111@gmail.com>

On Fri, May 22, 2026 at 04:18:47AM -0700, Laurentiu Mihalcea wrote:
> From: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
> 
> The CM7 remoteproc configuration is common to multiple MX95-based
> platforms (e.g. MX95-19x19-EVK, MX95-15x15-FRDM, SMARC-IMX95, etc.).
> Therefore, move the node to the MX95 SoC DTSI. While at it, split the mbox
> channels using <>.
> 
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>

...

> diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
> index 3e35c956a4d7..f8760ac067fa 100644
> --- a/arch/arm64/boot/dts/freescale/imx95.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
> @@ -272,6 +272,13 @@ opp-1000000000 {
>  		};
>  	};
>  
> +	cm7: remoteproc-cm7 {
> +		compatible = "fsl,imx95-cm7";
> +		mboxes = <&mu7 0 1>, <&mu7 1 1>, <&mu7 3 1>;
> +		mbox-names = "tx", "rx", "rxdb";
> +		status = "disabled";
> +	};
> +

As sashiko noticed, this is introducing a regression. No-one is enabling
this node anymore.

Francesco