linux-kernel - Re: [PATCH v2 0/5] exynos-acpm: add DVFS protocol and clock driver

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: <73674a4e-2397-4470-8743-763e0fb7435d@linaro.org>
Date: Mon, 1 Sep 2025 08:06:11 +0100
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Krzysztof Kozlowski <krzk@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Peter Griffin <peter.griffin@...aro.org>,
 André Draszik <andre.draszik@...aro.org>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>,
 Sylwester Nawrocki <s.nawrocki@...sung.com>,
 Chanwoo Choi <cw00.choi@...sung.com>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-clk@...r.kernel.org, willmcvicker@...gle.com, kernel-team@...roid.com
Subject: Re: [PATCH v2 0/5] exynos-acpm: add DVFS protocol and clock driver



On 8/31/25 11:42 AM, Krzysztof Kozlowski wrote:
> On 27/08/2025 14:42, Tudor Ambarus wrote:
>> The Alive CLock and Power Manager (ACPM) firmware exposes clocks that
>> are variable and index based. These clocks don't provide an entire range
>> of values between the limits but only discrete points within the range.
>> The firmware also manages the voltage scaling appropriately with the
>> clock scaling. Make the ACPM node a clock provider.
>>
>> Add support for the ACPM DVFS protocol. It translates clock frequency
>> requests to messages that can be interpreted by the ACPM firmware.
>> Add an ACPM clock driver to model the clocks exposed by the ACPM firmware.
>>
>> All patches can go through the samsung tree.
> 
> You really should have explained the dependencies instead of me trying
> to decipher how to handle this patch. It's really not trivial.

My apologies, I forgot. If I tested individual patches, I would have
remind about the dependency. Something to automate for the next time ...
> 
> You do understand that clock is completely different subsystem (Stephen
> Boyd)?
> 

Yes, I do, sorry.

Cheers,
ta