From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C45EAF4382B for ; Wed, 15 Apr 2026 14:32:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:References:To: From:Subject:Cc:Message-Id:Date:Content-Type:Content-Transfer-Encoding: Mime-Version:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=3HepdRyQzPaOaFk8Iiiaa5QdNKTntj32oiu0bvvizxc=; b=DyVxW3WO8def0GfnKk7oa3iH3d kCblgbqs61C5lyMQESCV/VwXO7vLJ4ykY1X/nXoG8mDX3+cYVeqTba8kcwRqKFXfvfEyhGu8fEA2E QR86Wfw1giyCily7P7SveWSlyOUPgQVhFlwXZg7WTH9od7nZJjQP100lzn1sTTU4pIt7dq04URTvC RHM1fdkXmoBnulqJfd8kpsKQozw2LeQMMdArVZ6ZMapUWTd4Zei7ENACpMc1dToW/2S5B33MELJXt Gpp1j7wuRT2m1ofMH8uhoZe+t4GLwAokKlRSWi88LVaJVI+Rrke2SK9vata9bi154eCW7RPT/AjUN 1LrAu3kA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wD1IU-00000001F84-1Oiz; Wed, 15 Apr 2026 14:32:54 +0000 Received: from mail-wm1-x32a.google.com ([2a00:1450:4864:20::32a]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wD1IR-00000001F7g-45lY for linux-arm-kernel@lists.infradead.org; Wed, 15 Apr 2026 14:32:53 +0000 Received: by mail-wm1-x32a.google.com with SMTP id 5b1f17b1804b1-488a8ca4aadso81282525e9.3 for ; Wed, 15 Apr 2026 07:32:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1776263570; x=1776868370; darn=lists.infradead.org; h=in-reply-to:references:to:from:subject:cc:message-id:date :content-transfer-encoding:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=3HepdRyQzPaOaFk8Iiiaa5QdNKTntj32oiu0bvvizxc=; b=ey4BtRd6v30cWK/EFENIxfJxTIuDd0HNaUcmGpx3LoCD3LyM5YTVRRhju1VzBbB6Bs J/HFInfHpLZTn5ah5o++7PMu8kj75BEGKB76zQxfVaTxCEPdGUtmAkuKrA0OWTu3xmLV zRHQ2/RrYkVh67nz53goVzkDvpnHd+oSUelcmy2XVQ40HcM1MHBLRWADLccmbQkh2S+H nKZ1aFKGZJLaoXBWhIEIcL041FxlPYJ9MOMmQihT1u2ktqR/x1N1pcGK3fNai2tH3Eki yE05VEgzu0HO2iBFUgvHYeawTyExKX3zsXt13U1QCt8OMowp0vVJLtNgd3d2e2GarV3A dXdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776263570; x=1776868370; h=in-reply-to:references:to:from:subject:cc:message-id:date :content-transfer-encoding:mime-version:x-gm-gg:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=3HepdRyQzPaOaFk8Iiiaa5QdNKTntj32oiu0bvvizxc=; b=PgKMB51a37FGr6pHBwrEqohwC+BBRUkl60sfqHwAUbWenIoxZZGnPbnX2f1rb4W97V W6LXSkq+DXA0cilKoUp02axnd83jms5IXyFd+NeVaM9T3K7a1KkD6MdP0YLQ/aQuGUyD 1GbO+gy7GJdvvfv5R1X5GsYWgkNOb64hekwXcgIf2pfqJiWaHnxxrnW7ZlfBoOYwNmKp 808xwMqPdN0ewq9B8rWWlj4QtJzt+weX/X90B7+jeey9ivG8nUBK9CgcMm4FduRs19G+ 7hvpeGtB56MnJWUVJGwLkF38A2rwEjjjVlg7n1NDmj+/11WE+nSgzkDsZLvFXE6Ld2ve u+nQ== X-Forwarded-Encrypted: i=1; AFNElJ9lqWqXq9afNAIug8f4HPJ3SGLNQ6FuYPc6/Lx7sIDbP6nyfjdKexCPbP13OWRYG419prH1L3UPakuXwDqo0THo@lists.infradead.org X-Gm-Message-State: AOJu0YzJgPGOFoVLFszMV0/Rmqwpdw9vNpIb3ITqSPhmsqiXv/pHNS+O B81aGAAH7z0ycvjwjO9oT/k2KOgLhHC8gUFTckCIe7Aps4a1poWp7d1wRzV7o3jW1Sg= X-Gm-Gg: AeBDievFbleuejqbJH573nWBjvyWCbeiSXJXZW1lQGBuT34f4nAoKCMNmWm4k6bG8Ll BOxx9Qjii4xXdmYICZZYaoFREpxMGv4cyHxW0v320XZu5F6Ir8OX0CCOj72d4CSk2b/Vz3aAa/a L4MgRd+OfqX5ss1dAFvUntnUyfJh5UBLs7Y96pVF2l8YQ7mFIOpnpY2FTm3DnBjPe+wkbaMKI71 IKdWrVIPi/hO3+5dGKtgVIxtdnZyiMcnbilmLHH6D3QTO+xZ5+GbKG/OjjJQDE11khqKJ/llTI3 xSVPxw19NX9xgPteekceFUjfKM6UZuHtvNJ3x6iplUhYS/caw3/Z7dxtsnCstz/8gPYR2Vc0lG3 t6LizuaaJshgT6sfFC+xZz6pdTJXCsNSPxzePFcW0rROKX0owyR//LyUFc9u7PWRV7oCWNtJo8X 4DM7D+gY9DAfQokBbvzJl9r1wC5ciZEiToPbom0ZgM/3i4hiPYRDR5YHtsjA5+iBAYPwOa/Eza/ 0X4kLLkZNA5Q044NQ== X-Received: by 2002:a05:600c:3149:b0:488:ab26:8fe0 with SMTP id 5b1f17b1804b1-488d68432f2mr298691635e9.15.1776263570072; Wed, 15 Apr 2026 07:32:50 -0700 (PDT) Received: from localhost ([212.187.182.164]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488f4352900sm2651745e9.1.2026.04.15.07.32.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 15 Apr 2026 07:32:49 -0700 (PDT) Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Wed, 15 Apr 2026 15:32:48 +0100 Message-Id: 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" , , , , , Subject: Re: [PATCH 0/5] Exynos850 APM-to-AP mailbox support From: "Alexey Klimov" To: "Krzysztof Kozlowski" X-Mailer: aerc 0.21.0 References: <20260320-exynos850-ap2apm-mailbox-v1-0-983eb3f296fc@linaro.org> <20260321-beautiful-garnet-magpie-de4fbd@quoll> <5d645bb0-22cd-4e96-b8b6-15c4bb83d87d@kernel.org> In-Reply-To: <5d645bb0-22cd-4e96-b8b6-15c4bb83d87d@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260415_073252_035551_7C0CFEDD X-CRM114-Status: GOOD ( 16.69 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu Apr 2, 2026 at 7:43 AM BST, Krzysztof Kozlowski wrote: > 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= =20 >>>> Exynos850 SoC. This mailbox is required for communicating with the APM= =20 >>>> co-processor using ACPM. >>>> >>>> The Exynos850 mailbox operates similarly to the existing gs101=20 >>>> implementation, but the register offsets and IRQ mask bits differ.=20 >>>> This series abstracts these differences into platform-specific data=20 >>>> 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? >>=20 >> Do you suggest to send 3 single patches with proper dependencies >> description? DT bindings change first, then mailbox change that specific= ally >> depends on dt-bindings change and then dts update (which will depend on = both)? >>=20 >> 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. Sorry. You're right on the first part. Couldn't say anything about last par= t. So I saw series where DTS enablement changes are included in the series after changes in drivers were introduced. I guess it is more preferred to split out DTS changes (also considering that kernel without these changes should be able to boot with new DTS and vice versa). I can split out DTS change(s), yes. There should/must be no dependency. Thanks. Best regards, Alexey