linux-kernel - Re: [PATCH RESEND] arm64: dts: VIM3: Set the rates of the clocks for the NPU

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Message-ID: <569e39a0-b91c-46f1-b55d-c9324d66339b@linaro.org>
Date:   Mon, 6 Nov 2023 10:26:46 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Tomeu Vizoso <tomeu@...euvizoso.net>, linux-kernel@...r.kernel.org
Cc:     Lucas Stach <l.stach@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/Amlogic Meson SoC support" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:ARM/Amlogic Meson SoC support" 
        <linux-amlogic@...ts.infradead.org>
Subject: Re: [PATCH RESEND] arm64: dts: VIM3: Set the rates of the clocks for
 the NPU

On 06/11/2023 10:22, Tomeu Vizoso wrote:
> Otherwise they are left at 24MHz and the NPU runs very slowly.
> 
> Signed-off-by: Tomeu Vizoso <tomeu@...euvizoso.net>
> Suggested-by: Lucas Stach <l.stach@...gutronix.de>
> ---
>   arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> index ff68b911b729..9d5eab6595d0 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> @@ -2502,6 +2502,9 @@ npu: npu@...00000 {
>   		clocks = <&clkc CLKID_NNA_CORE_CLK>,
>   			 <&clkc CLKID_NNA_AXI_CLK>;
>   		clock-names = "core", "bus";
> +		assigned-clocks = <&clkc CLKID_NNA_CORE_CLK>,
> +				  <&clkc CLKID_NNA_AXI_CLK>;
> +		assigned-clock-rates = <800000000>, <800000000>;
>   		resets = <&reset RESET_NNA>;
>   		status = "disabled";
>   	};

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>