linux-kernel - Re: [PATCH] ARM: dts: imx7ulp: Add cpu clock-frequency property

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Message-ID: <20191202134748.GB21897@dragon>
Date:   Mon, 2 Dec 2019 21:47:49 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Anson Huang <Anson.Huang@....com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Linux-imx@....com
Subject: Re: [PATCH] ARM: dts: imx7ulp: Add cpu clock-frequency property

On Tue, Nov 05, 2019 at 09:49:38AM +0800, Anson Huang wrote:
> Add "clock-frequency" property to avoid below warning on i.MX7ULP:
> 
> [    0.011762] /cpus/cpu@0 missing clock-frequency property
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
>  arch/arm/boot/dts/imx7ulp.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi
> index d37a192..87b2237 100644
> --- a/arch/arm/boot/dts/imx7ulp.dtsi
> +++ b/arch/arm/boot/dts/imx7ulp.dtsi
> @@ -41,6 +41,7 @@
>  			compatible = "arm,cortex-a7";
>  			device_type = "cpu";
>  			reg = <0>;
> +			clock-frequency = <500210526>;

I cannot find the binding doc for this property.  What is the
definition of it, the maximum frequency that the cpu could possibly run
at?

Shawn

>  		};
>  	};
>  
> -- 
> 2.7.4
>