From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1F08832E699; Mon, 22 Dec 2025 11:51:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766404272; cv=none; b=QYei2gt7Ajd0qbeNf1u1XmKQP4N0wkGdB+HGuFB0uqv00ENYAYK4u2phL9USYPf5BRN1hKdTjt6mXOwRGEw3Gnc2zCjxVpcOCV9zTdnNmyMvvGVdFX5oZAlqV+OQlcMUAX251zVJh5TEb8LOKk1wi6SiU/F5BT/huzKgJUIK0ig= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766404272; c=relaxed/simple; bh=H2o3vLv+Q+p2/y4Iwbp2lJ1X4PJHIx0frgjSJzVN7aU=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=KMG+7E21/c/zEGbum5STUxbZAyDWO6S8fhuaUqTdGwAN6+Bn0U5zzixrFR6LfvutgKZFsD05lXXxDtws//wNnB7RnyMzMHLXdKu2vBaNEg3Ftr2JYtYtAFc8nrgpzywOO2YXPVsrjN8xf7KAFrRzfzyLWMC8wpGvNaDz9sLBRno= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ilx75FOm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ilx75FOm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D0AD6C4CEF1; Mon, 22 Dec 2025 11:51:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766404271; bh=H2o3vLv+Q+p2/y4Iwbp2lJ1X4PJHIx0frgjSJzVN7aU=; h=Date:Subject:From:To:Cc:References:In-Reply-To:From; b=ilx75FOm5LSByZUVhlKwDOJMIax3K+FAdPYhPdTKurd0Uj8cV7FRrmRSncKE6o71u ZAcDvOv+i4bKihsehaesGfAC6wP7LIywqaKidCuMVKCR/edoaxrjR5EMiCeG9nA89X 4E5SnYibhLor7dPPxvMzMShf//o8vYM+sQfiK1gKiadW0Y2bv2BP+7yf56FAKRCmGR iQalIgpXx87eWklSc55NIKUmaEIy8JuV7K5AQ7VFupat06K/DSCIQcsnyvEKzLVcma xUeVzStaAequeB50GrfZDuud1JrqcszI149vI/SyxmAx1tKRZ8yG2fcgbXx1+u6Ynt aTdjK9RgNjMyA== Message-ID: <4fff2e56-600e-49a8-b993-aa7fa50f7fdf@kernel.org> Date: Mon, 22 Dec 2025 12:51:03 +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: (subset) [PATCH v7 0/4] Implement hardware automatic clock gating (HWACG) for gs101 From: Krzysztof Kozlowski To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , =?UTF-8?Q?Andr=C3=A9_Draszik?= , Tudor Ambarus , Michael Turquette , Stephen Boyd , Sam Protsenko , Sylwester Nawrocki , Chanwoo Choi , Peter Griffin Cc: Will McVicker , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, kernel-team@android.com References: <20251222-automatic-clocks-v7-0-fec86fa89874@linaro.org> <176640423317.47079.9046133168071940495.b4-ty@kernel.org> Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 22/12/2025 12:50, Krzysztof Kozlowski wrote: > > On Mon, 22 Dec 2025 10:22:11 +0000, Peter Griffin wrote: >> This series addresses an issue with Samsung Exynos based upstream clock driver >> whereby the upstream clock driver sets all the clock gates into "manual mode" >> (which uses a bit that is documented as reserved in the gate registers). >> >> Another issue with the current "manual clock gating" approach upstream is >> there are many bus/interconnect clocks whose relationships to the IPs >> are not well documented or defined in the specs. When adding a new CMU until >> now we have tried to label these clocks appropriately with CLK_IS_CRITICAL and >> CLK_IGNORE_UNUSED but doing so is both error prone and time consuming. If >> your lucky disabling a critical bus clock causes an immediate hang. Other >> clocks however aren't so obvious and show up through random instability >> some period of time later. >> >> [...] > > Applied, thanks! > > [2/4] arm64: dts: exynos: gs101: add samsung,sysreg property to CMU nodes > https://git.kernel.org/krzk/linux/c/01272f05aae5f6aca4337eb52e6b9290ce12e9f7 > Above is incomplete, all applied. Best regards, Krzysztof