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 04C82CF044A for ; Wed, 9 Oct 2024 10:19:54 +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:MIME-Version: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Date:Cc:To:From :Subject:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=yRYz0Zsqxya1VheS4IuNYc94S2kSLleMvc7LIeAdnm4=; b=AlgW2VtJFNiSBIjEvVqus0vfKg fXAlh57SCRfYXKq7TUSQdTNYSgldsmXOkmz9IGEaSpUBm6Dx96RHNyW3lnAkLahpnpeF0790BRftD seAHF3VMsXbamO2Clq5UkjyzRL+FtmZtCKOdodDbzQiAy4GL5Ni3w3caNMsdnwkQuuPCwZnGR7DLu AVooSb0ctVJtZ1+6wZfGP1eISPn8F8FCtFDiQMNA5Y2X17V2BJFKyxntxD5afwyXIMpr86PyGW2j0 EYb8Gd2ZsRZ3g55DQzekAf0HQirwhttyXYqCnIpER2ATU9pY8MrexLyppKXtPQmTBlZOIijlsS+fg /zkjaCgA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1syTnD-00000008qsO-0p6t; Wed, 09 Oct 2024 10:19:43 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1syTjY-00000008qBJ-3o3H for linux-arm-kernel@lists.infradead.org; Wed, 09 Oct 2024 10:15:58 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1syTj3-0007zK-PU; Wed, 09 Oct 2024 12:15:25 +0200 Received: from [2a0a:edc0:0:900:1d::4e] (helo=lupine) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1syTj1-000a0s-NJ; Wed, 09 Oct 2024 12:15:23 +0200 Received: from pza by lupine with local (Exim 4.96) (envelope-from ) id 1syTiw-0006sP-1q; Wed, 09 Oct 2024 12:15:18 +0200 Message-ID: <7c9f8ccc145bc9f62d3e5baaab24d1e4f6378436.camel@pengutronix.de> Subject: Re: [PATCH v7 3/6] reset: mchp: sparx5: Map cpu-syscon locally in case of LAN966x From: Philipp Zabel To: Herve Codina , Geert Uytterhoeven , Andy Shevchenko , Simon Horman , Lee Jones , Arnd Bergmann , Derek Kiernan , Dragan Cvetic , Greg Kroah-Hartman , Bjorn Helgaas , Lars Povlsen , Steen Hegelund , Daniel Machon , UNGLinuxDriver@microchip.com, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Saravana Kannan Cc: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Horatiu Vultur , Andrew Lunn , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Allan Nielsen , Luca Ceresoli , Thomas Petazzoni Date: Wed, 09 Oct 2024 12:15:18 +0200 In-Reply-To: <20241003081647.642468-4-herve.codina@bootlin.com> References: <20241003081647.642468-1-herve.codina@bootlin.com> <20241003081647.642468-4-herve.codina@bootlin.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.46.4-2 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241009_031556_971069_7BACC7E3 X-CRM114-Status: GOOD ( 12.80 ) 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 Do, 2024-10-03 at 10:16 +0200, Herve Codina wrote: > In the LAN966x PCI device use case, the syscon API cannot be used as > it does not support device removal [1]. A syscon device is a core > "system" device and not a device available in some addon boards and so, > it is not supposed to be removed. The syscon API follows this assumption > but this assumption is no longer valid in the LAN966x use case. >=20 > In order to avoid the use of the syscon API and so, support for removal, > use a local mapping of the syscon device. >=20 > Link: https://lore.kernel.org/all/20240923100741.11277439@bootlin.com/ [1= ] > Signed-off-by: Herve Codina Reviewed-by: Philipp Zabel regards Philipp