From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (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 CC98A4192FF; Fri, 10 Jul 2026 11:45:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783683926; cv=none; b=dcJHNI/Vk/Qc9zvfexPDccgA9RE4bXFOr6nrpldaLUHxcGf4eym2QUzd5A/HHztT6AJQnTIOYvTKVDOWffcmnvuSP9OHUuirzY7sypDDnhaZ7ZiFeOnPXTNwTQ41UDaSOaYgOaacVWUQ7eAIv4uKbd7zmve7y9c0abMw4sRAECM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783683926; c=relaxed/simple; bh=u5nphNG168GZ/VoM3JlEPFsfbmOIChAwWaJlqtZYhRU=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=Q0SUhZRuVfAbjDd0AtHz2u7lQK67f3bohd87gAIq/UGu3Sl4UV9YReOUsDn4kxZygSSetFOXszbQQSL7DmZIH8p02GmOii9IF+i/C+DE2YN+wC3A3tlWCI6VnRjgWrNW5aD0ydTHk3W4gtjbZKJVDngLT4Xcyh8LwQo2Auhdb88= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=QYTxTAwl; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="QYTxTAwl" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 761ACC2F4FE; Fri, 10 Jul 2026 11:45:25 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 828E560342; Fri, 10 Jul 2026 11:45:10 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 0B21111BD0281; Fri, 10 Jul 2026 13:44:53 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1783683909; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=lNEfnd2GOwK6OV6o3n233rtSH9H6bRRqMfAyW9Ht5sQ=; b=QYTxTAwl8ZZXjQUPTzcKeqjX0JGuQk0ZxPy1WBaHghwxQ14Zbow3vbxZLkweXwy9an4Rrs iF83k5c+2MPNBs52qoP9HCDa10QpUnqxWF+90v+GHdaaFRIU8sH+BsNMsRcfJIPqNhQoj5 /JyDADaosgmQ3YFMvJa/694nNHppGxSrixD96m1Z9qWZ3LfzvDacOcUJfbQ3NT4Yzvy90v Gj3FoBW+DOqcbX/E2tByHZxsmKxfTeDAezvKuaFuFlmdgV4016fhRh1xRKFcbAIEEL9mdG Nchh02+7vjL7SK9qqTVdwab/4W5DIfcjRyILYca8ShWQjF4smF+DWQoc438ZRg== From: Miquel Raynal To: Stephen Boyd Cc: Brian Masney , Michael Turquette , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thomas Gleixner , Olivia Mackall , Herbert Xu , Jayesh Choudhary , David S. Miller , Christian Marangi , Antoine Tenart , Geert Uytterhoeven , Magnus Damm , Thomas Petazzoni , Pascal EBERHARD , Wolfram Sang , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Herve Codina Subject: Re: [PATCH 10/16] clk: Add support for clock nexus dt bindings In-Reply-To: <177595635458.5403.1619739189587608339@lazor> (Stephen Boyd's message of "Sat, 11 Apr 2026 18:12:34 -0700") References: <20260327-schneider-v7-0-rc1-crypto-v1-0-5e6ff7853994@bootlin.com> <20260327-schneider-v7-0-rc1-crypto-v1-10-5e6ff7853994@bootlin.com> <87y0j76p8o.fsf@bootlin.com> <177595635458.5403.1619739189587608339@lazor> User-Agent: mu4e 1.12.7; emacs 30.2 Date: Fri, 10 Jul 2026 13:44:53 +0200 Message-ID: <87jyr3gjbe.fsf@bootlin.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Last-TLS-Session-Version: TLSv1.3 Hello, >> > Before I left my Reviewed-by, I should have double checked Sashiko. It >> > has several questions about this patch. The first is: >> > >> > Are there other places in the clock framework that need to transit= ion to the >> > new map API to ensure assigned clocks work? >> >=20=20=20=20=20 >> > For instance, assigned-clocks and assigned-clock-parents are parse= d in >> > drivers/clk/clk-conf.c using of_parse_phandle_with_args(). If a de= vice >> > specifies an assigned clock that routes through a nexus node, will= it fail >> > to configure because the map is not traversed? >>=20 >> The goal of the nexus node is to isolate what is behind. Are >> assigned-clocks et al. supposed to traverse a nexus node? I am tempted >> to say "no", but I'm open to discussing this ofc. > > Why would assigned-clocks not traverse the nexus node? If I'm a DT > author I would think any clock specifier should be routed properly > through the nexus node. Ok, giving this another thought, it may indeed be relevant to apply a default frequency which needs to traverse the nexus to be active. I've done the same change in the clk-conf.c file and tested with a dummy example, it just works. Thanks, Miqu=C3=A8l