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 X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B36CBC83029 for ; Thu, 2 Sep 2021 17:41:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A40D76112F for ; Thu, 2 Sep 2021 17:41:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347036AbhIBRms (ORCPT ); Thu, 2 Sep 2021 13:42:48 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:53780 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346632AbhIBRmT (ORCPT ); Thu, 2 Sep 2021 13:42:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=VtDdRsvYXvPM91L9W6La/FIYqWBh7JU22fy4eU4q8YI=; b=SIxlOcdujqgPVHNPYQx7mBMoYR k8Y5DQyburGjlxK0llEtHbv+mUjHVW5BxcEVjzVUlqjm8B/DO0maHJMtimq7PVLJL75z2fmBrPBjJ DI29J//drW58AM0CWof/L3TDPpOUJzLpxqUaQglBvzFp/i6dMXFXb1Z1WLGb2z+XR5fI=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1mLqi3-0051nR-1E; Thu, 02 Sep 2021 19:41:07 +0200 Date: Thu, 2 Sep 2021 19:41:07 +0200 From: Andrew Lunn To: Vladimir Oltean Cc: Saravana Kannan , Greg Kroah-Hartman , "Rafael J. Wysocki" , Linus Walleij , Vivien Didelot , Florian Fainelli , "David S. Miller" , Jakub Kicinski , Len Brown , Alvin Sipraga , kernel-team@android.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-acpi@vger.kernel.org Subject: Re: [PATCH v1 1/2] driver core: fw_devlink: Add support for FWNODE_FLAG_BROKEN_PARENT Message-ID: References: <20210831231804.zozyenear45ljemd@skbuf> <20210901084625.sqzh3oacwgdbhc7f@skbuf> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210901084625.sqzh3oacwgdbhc7f@skbuf> Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org > How would this be avoided? Or are you thinking of some kind of two-level > component driver system: > - the DSA switch is a component master, with components being its > sub-devices such as internal PHYs etc > - the DSA switch is also a component of the DSA switch tree I think you might be missing a level. Think about the automotive reference design system you posted the DT for a couple of days ago. Don't you have cascaded switches, which are not members of the same DSA tree. You might need a component for that whole group of switches, above what you suggest here. Can you nest components? How deep can you nest them? Andrew