Received: by 2002:a05:6a10:6d10:0:0:0:0 with SMTP id gq16csp219170pxb; Mon, 11 Apr 2022 23:37:33 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwd3q56HwsAwDHmlaX5uLgLZtMbbutwzL1G8ox9btGpe/5Dqikhmpx1J06G9rbwUD7MBpFv X-Received: by 2002:a17:902:ea12:b0:156:1bfa:13ac with SMTP id s18-20020a170902ea1200b001561bfa13acmr35864729plg.80.1649745453157; Mon, 11 Apr 2022 23:37:33 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1649745453; cv=none; d=google.com; s=arc-20160816; b=YRL612fZ2iptGwCUs/jnTvGahoZMJgV0RmNdKuTLWz22pUBP67/GnfpTDW8Z4TQG4Z +mtAyTsQRhUoP2mi8Ob/4675E0DqmVgiiw9ym5bz34ikepEAkDNFgZ1MdGfQuUj8kfO0 9cOd5/DjTyB8mbEgGMy2OClqj81eNmVFV6bbXgRMi9Vt7gP58a2EYgLZkBCVikHP8Hv4 rRc7aQRkd2uymnriJhto2hdtq9ZkKYNpCdZRtEoqZteR8DKofizjYvJDuXEkUCmFd1RT y9ueh7ZhSUyLPLdMDu4RQIKo99UJVSI18LXb7j7BksVGzLXnorb92gG12KWwD5DHkh3o SAKA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :organization:references:in-reply-to:message-id:subject:cc:to:from :date:dkim-signature; bh=zOhGrupBv5BZo/T0IffoldQiJaqfYTq0n0a0T+OCi+I=; b=hCykf2KNNq07LcI5FPzoYLDO8Xj+K3AxpQfmE1CmXWs1UZ9Gy15N7Z5HYRSFcVzbe2 rts5Vqb2wZ/wbfGDrFZj31fmrT/GIK/Lic5Pqi5NeG11wmh3P6iLqhL3Q1K4sJDYGTsS JBoeh/pKbKuhA6d+RgMn8P5Ghepb4uihgSN+JV9DmXR3qChCKVLkRM6Sb2D4mWFuPVk3 qO2SQrq8C4/lrXn+yoKRySy6A27iCnoEg87pI44Gpx9JIBoD+5ephw9FnW1sr32zp207 ZLAzr/IEYSfvbbCRrA8cSI8/xOZJc39sCktgUR3UybCILtdcMrlAaDksuuXepuW15Qf8 L3rw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@bootlin.com header.s=gm1 header.b=SHrE47Rt; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=bootlin.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id kk6-20020a17090b4a0600b001cbbfdb1c62si1638892pjb.131.2022.04.11.23.37.14; Mon, 11 Apr 2022 23:37:32 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@bootlin.com header.s=gm1 header.b=SHrE47Rt; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=bootlin.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346155AbiDKMtd (ORCPT + 99 others); Mon, 11 Apr 2022 08:49:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346065AbiDKMtc (ORCPT ); Mon, 11 Apr 2022 08:49:32 -0400 Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D66B2C66F for ; Mon, 11 Apr 2022 05:47:17 -0700 (PDT) Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 08CF01BF205; Mon, 11 Apr 2022 12:47:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1649681236; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zOhGrupBv5BZo/T0IffoldQiJaqfYTq0n0a0T+OCi+I=; b=SHrE47RtGnZTw25wVFb9Z4eZEOtLtknUSNPtLyjVtFAd9YTgJgfRqHC4yFrK81LxXd3BNQ eGESDWRhWNrlTRBeB60fXo2BJy+duzJm0EG5g9VeOhu3ElExffzi7ziQvXMsg6Jqg1dmVG iRLB6rGtvRwjeaiL5jnPP+Un0F3NLh2Acz+W2vgWTZVdVKueXBc9OjlkkM47EqaJh+pM0Y FDQwkCQhrGVtKjD66tMHHNtZOopHPfzuCQjF+cNjVwuvHdoJvJyWnYOl7x/7/tb4ItqjAW hXi4VvJKep9C+eKsiS0tLC1JdvM28Kk9GphAE992QLXjY4OIu/72kDUng3yHQQ== Date: Mon, 11 Apr 2022 14:47:13 +0200 From: Miquel Raynal To: Zheyu Ma Cc: richard@nod.at, vigneshr@ti.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mtd: rawnand: Use managed device resources Message-ID: <20220411144713.3057dd17@xps13> In-Reply-To: <20220411112124.3700126-1-zheyuma97@gmail.com> References: <20220411112124.3700126-1-zheyuma97@gmail.com> Organization: Bootlin X-Mailer: Claws Mail 3.17.7 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, zheyuma97@gmail.com wrote on Mon, 11 Apr 2022 19:21:24 +0800: Prefix should be "mtd: rawnand: denali:" > All of the resources used by this driver has managed interfaces, so use > them. Otherwise we will get the following splat: >=20 > [ 4.472703] denali-nand-pci 0000:00:05.0: timeout while waiting for ir= q 0x1000 > [ 4.474071] denali-nand-pci: probe of 0000:00:05.0 failed with error -5 > [ 4.473538] nand: No NAND device found > [ 4.474068] BUG: unable to handle page fault for address: ffffc9000500= 0410 > [ 4.475169] #PF: supervisor write access in kernel mode > [ 4.475579] #PF: error_code(0x0002) - not-present page > [ 4.478362] RIP: 0010:iowrite32+0x9/0x50 > [ 4.486068] Call Trace: > [ 4.486269] > [ 4.486443] denali_isr+0x15b/0x300 [denali] > [ 4.486788] ? denali_direct_write+0x50/0x50 [denali] > [ 4.487189] __handle_irq_event_percpu+0x161/0x3b0 > [ 4.487571] handle_irq_event+0x7d/0x1b0 > [ 4.487884] handle_fasteoi_irq+0x2b0/0x770 > [ 4.488219] __common_interrupt+0xc8/0x1b0 > [ 4.488549] common_interrupt+0x9a/0xc0 >=20 > Fixes: 93db446a424c ("mtd: nand: move raw NAND related code to the raw/ s= ubdir") >=20 Extra space > Signed-off-by: Zheyu Ma Otherwise LGTM. > --- > drivers/mtd/nand/raw/denali_pci.c | 15 ++++----------- > 1 file changed, 4 insertions(+), 11 deletions(-) >=20 > diff --git a/drivers/mtd/nand/raw/denali_pci.c b/drivers/mtd/nand/raw/den= ali_pci.c > index 20c085a30adc..de7e722d3826 100644 > --- a/drivers/mtd/nand/raw/denali_pci.c > +++ b/drivers/mtd/nand/raw/denali_pci.c > @@ -74,22 +74,21 @@ static int denali_pci_probe(struct pci_dev *dev, cons= t struct pci_device_id *id) > return ret; > } > =20 > - denali->reg =3D ioremap(csr_base, csr_len); > + denali->reg =3D devm_ioremap(denali->dev, csr_base, csr_len); > if (!denali->reg) { > dev_err(&dev->dev, "Spectra: Unable to remap memory region\n"); > return -ENOMEM; > } > =20 > - denali->host =3D ioremap(mem_base, mem_len); > + denali->host =3D devm_ioremap(denali->dev, mem_base, mem_len); > if (!denali->host) { > dev_err(&dev->dev, "Spectra: ioremap failed!"); > - ret =3D -ENOMEM; > - goto out_unmap_reg; > + return -ENOMEM; > } > =20 > ret =3D denali_init(denali); > if (ret) > - goto out_unmap_host; > + return ret; > =20 > nsels =3D denali->nbanks; > =20 > @@ -117,10 +116,6 @@ static int denali_pci_probe(struct pci_dev *dev, con= st struct pci_device_id *id) > =20 > out_remove_denali: > denali_remove(denali); > -out_unmap_host: > - iounmap(denali->host); > -out_unmap_reg: > - iounmap(denali->reg); > return ret; > } > =20 > @@ -129,8 +124,6 @@ static void denali_pci_remove(struct pci_dev *dev) > struct denali_controller *denali =3D pci_get_drvdata(dev); > =20 > denali_remove(denali); > - iounmap(denali->reg); > - iounmap(denali->host); > } > =20 > static struct pci_driver denali_pci_driver =3D { Thanks, Miqu=C3=A8l