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Mon, 01 Sep 2025 00:06:14 -0700 (PDT) Received: from [192.168.0.251] ([79.115.63.1]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3d85f80d8casm541692f8f.54.2025.09.01.00.06.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 01 Sep 2025 00:06:13 -0700 (PDT) Message-ID: <73674a4e-2397-4470-8743-763e0fb7435d@linaro.org> Date: Mon, 1 Sep 2025 08:06:11 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/5] exynos-acpm: add DVFS protocol and clock driver To: Krzysztof Kozlowski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Peter Griffin , =?UTF-8?Q?Andr=C3=A9_Draszik?= , Michael Turquette , Stephen Boyd , Alim Akhtar , Sylwester Nawrocki , Chanwoo Choi , Catalin Marinas , Will Deacon Cc: linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, willmcvicker@google.com, kernel-team@android.com References: <20250827-acpm-clk-v2-0-de5c86b49b64@linaro.org> <28b5b033-76de-4fed-af6b-6d8342362c47@kernel.org> Content-Language: en-US From: Tudor Ambarus In-Reply-To: <28b5b033-76de-4fed-af6b-6d8342362c47@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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