linux-kernel - Re: [PATCH v2 0/2] Enable CTCU device for QCS8300

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

Message-ID: <3551dba1-0c5f-4000-8b95-6a04cd81a027@kernel.org>
Date: Fri, 4 Jul 2025 09:54:27 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Jie Gan <quic_jiegan@...cinc.com>, Jie Gan <jie.gan@....qualcomm.com>,
 Suzuki K Poulose <suzuki.poulose@....com>, Mike Leach
 <mike.leach@...aro.org>, James Clark <james.clark@...aro.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: coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/2] Enable CTCU device for QCS8300

On 25/06/2025 02:59, Jie Gan wrote:
> 
> 
> On 6/24/2025 5:59 PM, Jie Gan wrote:
>> Enable CTCU device for QCS8300 platform. Add a fallback mechnasim in binding to utilize
>> the compitable of the SA8775p platform becuase the CTCU for QCS8300 shares same
>> configurations as SA8775p platform.
> 
> Hi dear maintainers,
> 
> I just realized it would be more efficient to introduce a common 
> compatible string for SoCs that include two TMC ETR devices.
> 
> Most of these SoCs share the same CTCU data configuration, such as the 

"Most" basically disqualifies your idea.

> offsets for the ATID and IRQ registers, because they integrate the same 
> version of the CTCU hardware.
> 
> So I propose introducing a common compatible string, 
> "coresight-ctcu-v2", to simplify the device tree configuration for these 
> platforms.

This is explained in writing bindings.

Best regards,
Krzysztof