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 DD90AC982D2 for ; Thu, 17 Sep 2026 21:48:11 +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: Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References:List-Owner; bh=Y4Stguvv4qisH0fPq1RIyxcBBS2SKpn9CvuMKDsycto=; b=cL2HfZ7ltus4GaK2rvyuFTqjJC LwLdHRseZufWOzc895GFsSViyCHGiN+fDQr2zrx9DqbfSs+H6qboDreCweOWaD9H9UacPcdrrDcRP ThNV1ylQpsNM6bL7hftIPbvqjaGTJQ0lLgwBaVNWNLPimSL9JjMcZ5PdAoyUzpIebNmBkczL75CWN 0vpoBBxwK4xF95eum1cRPvakhq7mkj4o1HggdQyU4aY2PmDmI177g7vaUYhH/wxbBbQt5Y6ciS+B/ UnjyQ7LCKY+Go+ArdEtElTPMChLLlx2OkQTTV9VNaBTau60h5xYbM+6olQiJ3PIhRZOYyMvEXsffS CS850AYg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x7Jxd-0000000Caid-2cmv; Thu, 17 Sep 2026 21:48:05 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x7Jxb-0000000CaiX-3Rs1 for linux-arm-kernel@lists.infradead.org; Thu, 17 Sep 2026 21:48:03 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 2F17842DC4; Thu, 17 Sep 2026 21:48:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CF9DF1F000FF; Thu, 17 Sep 2026 21:48:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789681683; bh=Y4Stguvv4qisH0fPq1RIyxcBBS2SKpn9CvuMKDsycto=; h=Date:From:To:Cc:Subject:In-Reply-To; b=Oyssc8kfRJtxQUYmZyoym09iRqSHjV6Ctm4UAYxYb0nOQI1xE+zFfWTKM1f+a7SdH dbBENlXzdGniqBn9vVw852O44pLeWh7ykZQV5vmhWbPanI0cadVt0v0Lg8YuD5Uswq 5BsyB4l/59kufDS+AmjLEy0Pp1ohALFqZyWeIxdmUsT+ywigcLyIHiyNTn7qnr4823 JntxQV14bOpwGPC+3k6OCv3ZlXxWnxHTg/DsgPFQVwiBEfmMxplVQ6JEKpNl/5pAzf II0+6iulADewaFJmvPVkDWnkdz8vt3LuaeY33rftG5F3fAR0Ad6/ttcIckckWYQcpD OU9jOO5q4QoPQ== Date: Thu, 17 Sep 2026 16:48:01 -0500 From: Bjorn Helgaas To: Arnd Bergmann Cc: Semih Baskan , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , bhelgaas@google.com, Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, =?utf-8?B?UmFmYcWCIE1pxYJlY2tp?= , =?utf-8?B?UmFmYcWCIE1pxYJlY2tp?= , Florian Fainelli , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Rosen Penev , rani.hod@gmail.com Subject: Re: [PATCH] PCI: iproc: Use pci_alloc_host_bridge() on BCMA Message-ID: <20260917214801.GA1054958@bhelgaas> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <7c2a8582-280e-471a-b4b0-037b2cda6ad8@app.fastmail.com> 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, Sep 17, 2026 at 10:27:54PM +0200, Arnd Bergmann wrote: > On Thu, Sep 17, 2026, at 20:36, Bjorn Helgaas wrote: > > On Thu, Sep 17, 2026 at 09:02:23PM +0300, Semih Baskan wrote: > >> On Thu, Sep 17, 2026 at 10:59:29AM -0500, Bjorn Helgaas wrote: > > > > Then it seems like we should remove the "brcm,iproc-pcie" compatible > > from DTs for platforms where bcma can enumerate it via EROM. Those > > platforms can enable CONFIG_PCIE_IPROC_BCMA. They still need the PCIe > > controller node in DT so they can use the wifi nodes below it, but if > > there's no "brcm,iproc-pcie" compatible, pcie-iproc-platform shouldn't > > do anything. > > > > Arnd, Rafał, jump in if I'm in the weeds here. > > It feels wrong to me to change the devicetee file when that arguably > describes the device correctly, and we still need the node for the > bcma bus probe in the end. I don't think pcie-iproc-bcma.c needs anything from DT at all. Everything it needs is in EROM. Some PCI drivers, e.g., wifi, need DT nodes, and I think those need to be enclosed in a node for the PCI host controller, but pcie-iproc-bcma.c itself doesn't care. Bjorn