linux-kernel - Re: [PATCH v2 3/7] arm64: dts: freescale: imx95: update a55 thermal trip points

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Message-ID: <3587078.iIbC2pHGDl@steina-w>
Date: Thu, 05 Sep 2024 14:24:13 +0200
From: Alexander Stein <alexander.stein@...tq-group.com>
To: 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>, Fabio Estevam <festevam@...il.com>, linux-arm-kernel@...ts.infradead.org
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>, "Peng Fan (OSS)" <peng.fan@....nxp.com>
Subject: Re: [PATCH v2 3/7] arm64: dts: freescale: imx95: update a55 thermal trip points

Am Dienstag, 3. September 2024, 09:17:48 CEST schrieb Peng Fan (OSS):
> From: Peng Fan <peng.fan@....com>
> 
> Update the thermal trip points for automotive and extended industrial
> temperature qualification processors.
> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx95.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
> index 314a45e82c38..2cba7a889030 100644
> --- a/arch/arm64/boot/dts/freescale/imx95.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
> @@ -347,13 +347,13 @@ a55-thermal {
>  
>  			trips {
>  				cpu_alert0: trip0 {
> -					temperature = <85000>;
> +					temperature = <105000>;
>  					hysteresis = <2000>;
>  					type = "passive";
>  				};
>  
>  				cpu_crit0: trip1 {
> -					temperature = <95000>;
> +					temperature = <125000>;

What about commercial and industrial temperature ranges? Can you detected
this at runtime? Is the bootloader supposed to correct these settings?

Best regards,
Alexander

>  					hysteresis = <2000>;
>  					type = "critical";
>  				};
> 
> 


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