linux-kernel - Re: [PATCH 3/3] arm64: dts: qcom: qcs8300: Add EPSS l3 interconnect provider node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <d23b8cf0-1ba0-45f6-b06b-f7a862bae457@oss.qualcomm.com>
Date: Tue, 17 Jun 2025 21:23:05 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Raviteja Laggyshetty <raviteja.laggyshetty@....qualcomm.com>,
        Georgi Djakov <djakov@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Mike Tiption <mdtipton@...cinc.com>, Sibi Sankar
 <quic_sibis@...cinc.com>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: qcom: qcs8300: Add EPSS l3 interconnect
 provider node

On 6/17/25 11:06 AM, Raviteja Laggyshetty wrote:
> Add Epoch Subsystem (EPSS) L3 interconnect provider node for QCS8300 SoC.
> 
> Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/qcs8300.dtsi | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> index 7ada029c32c1..e056b3af21d5 100644
> --- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> @@ -12,6 +12,7 @@
>  #include <dt-bindings/dma/qcom-gpi.h>
>  #include <dt-bindings/firmware/qcom,scm.h>
>  #include <dt-bindings/interconnect/qcom,icc.h>
> +#include <dt-bindings/interconnect/qcom,osm-l3.h>
>  #include <dt-bindings/interconnect/qcom,qcs8300-rpmh.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/mailbox/qcom-ipcc.h>
> @@ -5433,6 +5434,14 @@ rpmhpd_opp_turbo_l1: opp-9 {
>  			};
>  		};
>  
> +		epss_l3_cl0: interconnect@...90000 {
> +			compatible = "qcom,qcs8300-epss-l3", "qcom,epss-l3";
> +				reg = <0x0 0x18590000 0x0 0x1000>;
> +				clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_GPLL0>;
> +				clock-names = "xo", "alternate";

Very odd indentation

You should also immediately bind these providers to something,
otherwise sync_state will happily take them to whatever minimum
rate the hardware allows, making things worse

Konrad