linux-kernel - Re: [PATCH] arm64: dts: imx8mp-verdin: add cpu-supply

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Date:   Mon, 22 Aug 2022 09:33:56 +0000
From:   Marcel Ziswiler <marcel.ziswiler@...adex.com>
To:     "max.oss.09@...il.com" <max.oss.09@...il.com>,
        Max Krummenacher <max.krummenacher@...adex.com>
CC:     "laurent.pinchart@...asonboard.com" 
        <laurent.pinchart@...asonboard.com>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "linux-imx@....com" <linux-imx@....com>,
        "festevam@...il.com" <festevam@...il.com>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>
Subject: Re: [PATCH] arm64: dts: imx8mp-verdin: add cpu-supply

On Mon, 2022-08-22 at 09:53 +0200, Max Krummenacher wrote:
> From: Max Krummenacher <max.krummenacher@...adex.com>
> 
> Add the cpu-supply property to all CPU nodes to enable the cpufreq
> driver.
> 
> Signed-off-by: Max Krummenacher <max.krummenacher@...adex.com>

Acked-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>

> ---
> 
>  .../boot/dts/freescale/imx8mp-verdin.dtsi      | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-
> verdin.dtsi
> index f062fdbb2719..dbc22b672fb3 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
> @@ -146,6 +146,22 @@ reserved-memory {
>         };
>  };
>  
> +&A53_0 {
> +       cpu-supply = <&reg_vdd_arm>;
> +};
> +
> +&A53_1 {
> +       cpu-supply = <&reg_vdd_arm>;
> +};
> +
> +&A53_2 {
> +       cpu-supply = <&reg_vdd_arm>;
> +};
> +
> +&A53_3 {
> +       cpu-supply = <&reg_vdd_arm>;
> +};
> +
>  &cpu_alert0 {
>         temperature = <95000>;
>  };
> @@ -453,7 +469,7 @@ BUCK1 {
>                                 regulator-ramp-delay = <3125>;
>                         };
>  
> -                       BUCK2 {
> +                       reg_vdd_arm: BUCK2 {
>                                 nxp,dvs-run-voltage = <950000>;
>                                 nxp,dvs-standby-voltage = <850000>;
>                                 regulator-always-on;