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 B627A4D8CE; Thu, 2 Apr 2026 06:43:36 +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=1775112216; cv=none; b=pIccImkg7NqRbiCsmx66tG4e0Y6oHwkE7XkAK6wN4ywVbkoHFmiD73qWOvo1mo+CNzRCU+mYCWa2eTRD1KhGAQxyso+5jNI6VEezqvZj/r05Lu229v+NF/WDoFqM3tzEYDlni9/ofZJyOybhD3wB8UrSJ5jbz0eJsmd0i+LCez8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775112216; c=relaxed/simple; bh=5pJvsUEGXVB/eFmV7VyV1t/gS5WHF4vfE98KTHWbssU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=rbh4ugNn25tTh4FGrPTg63Zw0OCmGKXRDWtQ2m7W/a8W+y2pOcCB/LrP+FTh2Z2J9vmY8y30ijRAqtML4oIAevW9lRtQ5kPsvhmm37KDTdDCvJHR2nAmj+ZFu+M9I4tbuWP9kvKpqBUmkN4OynJFdudu3kqUNwpHITcCXJG5Ic0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=F+NXctNS; 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="F+NXctNS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94D27C19423; Thu, 2 Apr 2026 06:43:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775112216; bh=5pJvsUEGXVB/eFmV7VyV1t/gS5WHF4vfE98KTHWbssU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=F+NXctNSIZ3dexgIyYgK3nTjZk2WUqV3LFGl+7Vhvdg2IlOgU3TK+Yc4fCrY+wVO6 Rz7tKqXQT/zOJiE6Hlcwf0/MVOORW202DfV8/zNGzxmy57DJbXyJAgqKRpDLoSGTik FYprEwPySdRvnebamot9Ur6jkJw+vhmDccrql7wTSSfSengejWwBJukB8G/6EyNU6f scHvcmHshEuCqdFXakL7JcabtixPQkobn49NPJNTSkT20GcVxdzevVlp0i5qU90pEo C9xKSL12Y8CQb53qOI0LC6fSSztTtDR7ixOimWd1Wzl7YgjhIaw0sSqDNZVaJU13ib UZ5RdCoeoYs5Q== Message-ID: <5d645bb0-22cd-4e96-b8b6-15c4bb83d87d@kernel.org> Date: Thu, 2 Apr 2026 08:43:30 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/5] Exynos850 APM-to-AP mailbox support To: Alexey Klimov Cc: Sylwester Nawrocki , Chanwoo Choi , Alim Akhtar , Sam Protsenko , Michael Turquette , Stephen Boyd , Rob Herring , Conor Dooley , Tudor Ambarus , Jassi Brar , Krzysztof Kozlowski , Peter Griffin , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260320-exynos850-ap2apm-mailbox-v1-0-983eb3f296fc@linaro.org> <20260321-beautiful-garnet-magpie-de4fbd@quoll> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 02/04/2026 04:19, Alexey Klimov wrote: > On Sat Mar 21, 2026 at 10:44 AM GMT, Krzysztof Kozlowski wrote: >> On Fri, Mar 20, 2026 at 09:15:12PM +0000, Alexey Klimov wrote: >>> Hi all, >>> >>> This patch series introduces support for the APM-to-AP mailbox on the >>> Exynos850 SoC. This mailbox is required for communicating with the APM >>> co-processor using ACPM. >>> >>> The Exynos850 mailbox operates similarly to the existing gs101 >>> implementation, but the register offsets and IRQ mask bits differ. >>> This series abstracts these differences into platform-specific data >>> structures matched via the device tree. >>> >>> Also, it requires APM-to-AP mailbox clock in CMU_APM block. >>> >>> In theory this can be split into two series with correct dependecies: >>> device tree node requires clock changes to be merged. The suggestion >>> is to let this go through Samsung SoC tree with corresponding acks >>> if it is okay. >> >> I don't understand why this cannot be split into two seris >> *practically*. What is exactly the dependency between mailbox and DTS, >> that it had to be combined here? > > Do you suggest to send 3 single patches with proper dependencies > description? DT bindings change first, then mailbox change that specifically > depends on dt-bindings change and then dts update (which will depend on both)? > > I thought that mbox driver change depends implicitly on bindings update? Please don't answer to a question with a question. Actually three questions. If you cannot give argument why there is a dependency, feels to me like you send something you do not understand. Best regards, Krzysztof