linux-kernel - Re: [PATCH] arm64: dts: qcom: sc7280.dtsi: Fix PMU nodes for Cortex A55 and A78

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Message-ID: <c399748e-05ca-45df-9e40-2d38b132f97a@linaro.org>
Date: Fri, 30 Aug 2024 10:59:27 +0100
From: Caleb Connolly <caleb.connolly@...aro.org>
To: Danila Tikhonov <danila@...xyga.com>, andersson@...nel.org,
 konradybcio@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org
Cc: cros-qcom-dts-watchers@...omium.org, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux@...nlining.org
Subject: Re: [PATCH] arm64: dts: qcom: sc7280.dtsi: Fix PMU nodes for Cortex
 A55 and A78



On 18/08/2024 20:29, Danila Tikhonov wrote:
> The SC7280, SM7325, and QCM6490 platforms feature an 8-core setup
> consisting of:
> - 1x Kryo 670 Prime (Cortex-A78) / Kryo 670 Gold Plus (Cortex-A78)
> - 3x Kryo 670 Gold (Cortex-A78)
> - 4x Kryo 670 Silver (Cortex-A55)
> (The CPU cores in the SC7280 are simply called Kryo, but are
> nevertheless based on the same Cortex A78 and A55).
> 
> Use the correct compatibility.
> 
> Signed-off-by: Danila Tikhonov <danila@...xyga.com>

Reviewed-by: Caleb Connolly <caleb.connolly@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/sc7280.dtsi | 9 +++++++--
>   1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index 91cc5e74d8f5..ab024a3c3653 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -845,8 +845,13 @@ wlan_smp2p_in: wlan-wpss-to-ap {
>   		};
>   	};
>   
> -	pmu {
> -		compatible = "arm,armv8-pmuv3";
> +	pmu-a55 {
> +		compatible = "arm,cortex-a55-pmu";
> +		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
> +	};
> +
> +	pmu-a78 {
> +		compatible = "arm,cortex-a78-pmu";
>   		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
>   	};
>   

-- 
// Caleb (they/them)