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 DF1F6C352A1 for ; Wed, 7 Dec 2022 11:27:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: MIME-Version:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=9lI7kXkzdD5asOh/LzTTONzOgdjPJXTGrpDMRXNxuGI=; b=HjN 7zrqPBTlz/k1ijVQQuqG3dTJmqY291KOrWYUOFfF5Him1vZIU7J/r7Rfi2yrHdMOI2nKKxiAYbzIE GdBV0vBxGkNs4bgsOKmHIH2dMefe2Lyc8iNnIM5nNPlYH9MgHWRl450Y0RGQfMBo7SfVJHvMjrGxt uQz9cVtzN3lLJPwoh7wZIU0le0VCX0VHhqWs2V5R50YU7AG3RJwc1g4rytgQ52xVZdYDgbw5fbiv2 DewNrJeJiwvtt35gT8nN6mMhP+thkRz4j5KoM/NiRU6VE/7abJsRJmsBQ+68JnAXwKkfUX104vZo6 wEKK9P+tYD1mZLiuBuUTCP0kXpFMV0w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p2sZ1-000kbP-9m; Wed, 07 Dec 2022 11:26:11 +0000 Received: from mout.gmx.net ([212.227.15.15]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p2sYv-000kCn-VM for linux-arm-kernel@lists.infradead.org; Wed, 07 Dec 2022 11:26:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=s31663417; t=1670412357; bh=iWB0Flg1LIj12Mdqtv46GMMJS/VLgndICaJ5qf0GKk0=; h=X-UI-Sender-Class:Date:From:To:Cc:Subject; b=atjsyF5BO9kbRtR6SUckvXF1GJn35ImBXVsdRRs0dIatPjMSQKSNYKEbF6DYavguZ +9E7lQs65obWFdCLZMc0YVhlgBNnZZIUPf7BJQMfGgp2emkZ6HBnYYrHMBwYLGgf89 zxbnWmIP8DZiIFWwjKQAQmQz94JUXAlvdcd3jqPHGlXKtTXN75CKcaeqQ+PLr33hNK LbZ6pSDtnKyaLGVdZ32f3ak3V/2R53623ilVvcds5xx3VKcHGqHhaBgow84zS4kkFN m/sjOxRfiNAOd9esuzuUdQVqf9XM7cTTnkFEJofSQvJ5HXQjox0czMlRQ126PXDqLt mISnvfiPEiLRQ== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from probook ([95.223.44.31]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MI5UD-1p99xy2ihj-00FEMl; Wed, 07 Dec 2022 12:25:57 +0100 Date: Wed, 7 Dec 2022 12:25:53 +0100 From: Jonathan =?utf-8?Q?Neusch=C3=A4fer?= To: linux-arm-kernel@lists.infradead.org Cc: Robert Jarzmik , Haojian Zhuang , Daniel Mack , linux-kernel@vger.kernel.org Subject: PXA25x: GPIO driver fails probe due to resource conflict with pinctrl driver Message-ID: MIME-Version: 1.0 X-Provags-ID: V03:K1:+aSGHhafDU13v3wYdeFD2QndWowCdMZNHk5e57ooPW2O+uSrwTJ yOKNiAJkIgSsSLnJp4RKNKkef3Bi222r4gPBpi/VJx2jeCVbsehbgxp2Nj5LvmwuMoSvQge x27Ogy/r1z+gjLfqR710l7Zbbb5sUREFvZ1zTOI57BW8ySo9epU9ujyOvJh7tq6FffNInLS A9CI0hAcfWK9NwoU6gSZg== UI-OutboundReport: notjunk:1;M01:P0:Xa+/ZDnCzcQ=;N1IbOZv6TGPGxQBIsdgWy1CBuIe a2DWMq4kLghhl+c/uNGcFOAzAe7nv4wEV60LK49bSHiBUGDNsZeIbsAYzNrY5+PRTXNXjL1hp 8uN6qiVmgUMquH6w2oPpgPeSMIP+1RLcvwYnm83PRDdcomJgohpSxZRR3aEqMngc1zEI+U2DB NbvMh31dlQywvUMXC720h8zpx097Pp++T4DxoDfCMx4b3SWw/BGJgzIEOippR1bkpUmesIFtt oKMqMHA+nMMGZRtw7z/El2kz7wwXA2UW8m9DZ5tyR9VpMGp96TWnZXuSGUTepXMqri0Fd712S SPTyMunRUYSlPoEQJfz7tra6Exg1nHrw/SOKg3B1P2+jCqk+2ynKXCVNt7ykYZya30HNhzg4U OVEuP1v6OvsGbrey2BrX6pYy7uktJzZFX2DVKP0eiz5xMqkU260M/BjWkGJ8/2OI3pW8sE3/E shzyC+qp1KFyEUQisweqcPTOLp0OsTjswM+6XDaYLn6lT08NUuEmeLwYRzThNdJy6ijV4yxL+ BgljRS9FoZ4sS2esia9sW+4i8SBikbRcOnipz2dWWiZ/0iec7DY44DHMmdAiy1J6O1K9awCxu wfqhVgmkhpVZi1oh+GfR1qCv/xCKeyvJPWRNT1RSbs3BBNCqdovr/1kdwZwfupNG/Apjb5Nio eHMMI0xd6yGZs/Ai978KOeLul7lRHT7XDZoaeCShVfpYtb7NaSdMlgcLAx06HoXYm8MNWyuS/ AxXWmiVJ+FcnBmWOLTCNgb0zNwScoEyjIzS4GdfBD/FKOVqQ154GgDMfrOLvcoSBMJMFkBJVm s4pD0IUwDPj33Fw8LywOLOnXovtqzyiNVYjPnkqe2Aj8lkQceNZDTOhKVhuEAw5/OWP9JScsX DBH+29pnZJIDgpr9Ta/JvIr+OIHr+SsKQSspqn8cAHQiNZEa8PnFlFuPgkDOPrcJyFarReIOy LM3CYmvfvKQlp+Au4Gg7HoQ6rZM= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221207_032606_522249_8EA7DAD5 X-CRM114-Status: GOOD ( 11.26 ) 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: , Content-Type: multipart/mixed; boundary="===============6447310695113288149==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============6447310695113288149== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="aQ0C+mz0p8jyb4CT" Content-Disposition: inline --aQ0C+mz0p8jyb4CT Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hello, I am currently trying to bring up Linux 6.1-rcX on a PXA255 board, using a devicetree. One problem I encountered is that the PXA GPIO driver fails to probe because it uses the same MMIO register range as the pinctrl driver: [ 0.666169] pxa25x-pinctrl 40e00054.pinctrl: initialized pxa2xx pinctrl driver [ 0.694407] pxa-gpio 40e00000.gpio: can't request region for resource [mem 0x40e00000-0x40e0ffff] [ 0.695050] pxa-gpio: probe of 40e00000.gpio failed with error -16 Before I try to fix this myself: Is GPIO on PXA25x currently expected to work and when has it last been seen working? What would be a good way to fix this? I've considered calling into pinctrl-pxa25x directly from pxa-gpio and passing in the GPIO driver's register mapping, rather than mapping the registers again in pinctrl-pxa25x. This seems like it should address the kernel's requirement that resources shouldn't overlap, but some additional locking between GPIO driver and pinctrl driver might be neccessary to keep register accesses consistent/atomic. Best regards, Jonathan --aQ0C+mz0p8jyb4CT Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEvHAHGBBjQPVy+qvDCDBEmo7zX9sFAmOQeB8ACgkQCDBEmo7z X9spEhAArFDxtq11404dxWxRTEZtkVxKwo5KRFcwCo3MJWe2KzfXby928asuBc7v nxqKbSdNRsK9uy6hcX+uDCf/3i8hc3i8d5rxp8Y8FaLX5A6aFFWu7xL95qWWPctV DILTwA2uzEEXUinYWprS+YRFlkmaYo9NVkbJ7a9kT8+A70GlwkBYQ/kL3jwlw2uJ x7PnnTk53wEkwMJ7T7Z47uekJieIb/baSyk4bPUYacGZKwc1IUuvd9/ncc0VEM5W xaWQc6UGcVXOIu4j6kXt5xg14dyqzHSK8zKBmrZAvEvwQQveNlNoaHNfU1RlcGtx KjKwaOB1RBK5hlhdlRZzTdwpefM7i6JQJSfWwJRaiIQyfoLsMql/n8ETbA3k0Z5C LI4pdhkHf8kn7u++wgkGq1H6p1VWDemwwDPUwJ8C5wmJxL9EOYcMpAMyHQS3tuRP 71xfo+bMssVvkzz4Rz4V3nPlB0jopSz7Wqrp5N+BJh65bqwJEkcCmFrqH7Gtx/hr TXxomj9PpZUKBMQTmAnUxc89Iyd3EKECnnc2wDNB97MNEpFyXIxh9e5Peyb2PZ80 P2upMwRP/saroLsiB27EdZJcV01/1pzj2l1C8VASZVBAnFU2cKJuH9Luw6LC77NW K7c+CzZNwJqsrHPjcdNtmdFKDwAUVb4MB46ZdLtu0VqtUxJJzVM= =TWQm -----END PGP SIGNATURE----- --aQ0C+mz0p8jyb4CT-- --===============6447310695113288149== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============6447310695113288149==--