linux-kernel - Re: [PATCH v3 3/4] arm64: dts: meson: Add DDR PMU node

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Message-ID: <9ef21f8e-163e-fc31-636d-c0d6d004f27f@linaro.org>
Date:   Tue, 2 Aug 2022 10:05:18 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jiucheng Xu <jiucheng.xu@...ogic.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, devicetree@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Chris Healy <cphealy@...il.com>
Subject: Re: [PATCH v3 3/4] arm64: dts: meson: Add DDR PMU node

On 01/08/2022 08:00, Jiucheng Xu wrote:
> Add DDR PMU device node for G12 series SoC
> 
> Signed-off-by: Jiucheng Xu <jiucheng.xu@...ogic.com>
> ---
> Changes v2 -> v3:
>   - No change
> 
> Changes v1 -> v2:
>   - Remove model, dmc_nr, chann_nr properties
>   - Add g12a-ddr-pmu, g12b-ddr-pmu, sm1-ddr-pmu compatibles as
>     identifier
> ---
>  arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 7 +++++++
>  arch/arm64/boot/dts/amlogic/meson-g12a.dtsi       | 4 ++++
>  arch/arm64/boot/dts/amlogic/meson-g12b.dtsi       | 4 ++++
>  arch/arm64/boot/dts/amlogic/meson-sm1.dtsi        | 4 ++++
>  4 files changed, 19 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> index 45947c1031c4..7e556fe575be 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> @@ -2146,6 +2146,13 @@ hdmi_tx_out: endpoint {
>  			};
>  		};
>  
> +		ddr_pmu: ddr_pmu@...38000 {
> +			compatible = "amlogic,g12-ddr-pmu";

No. Test your DTS against bindings first.

Best regards,
Krzysztof