From patchwork Tue Jul 3 22:00:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 10505557 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EEC0D60225 for ; Tue, 3 Jul 2018 23:10:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DC33328B3D for ; Tue, 3 Jul 2018 23:10:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CE97928B49; Tue, 3 Jul 2018 23:10:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4AEAB28B3D for ; 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Received: from mail.bootlin.com ([62.4.15.54]) by merlin.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1faTMW-0007O6-9t; Tue, 03 Jul 2018 22:01:30 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id A517220913; Wed, 4 Jul 2018 00:01:03 +0200 (CEST) Received: from localhost.localdomain (unknown [91.224.148.103]) by mail.bootlin.com (Postfix) with ESMTPSA id 4565B208FF; Wed, 4 Jul 2018 00:01:02 +0200 (CEST) From: Miquel Raynal To: Wenyou Yang , Josh Wu , Tudor Ambarus , Boris Brezillon , Miquel Raynal , Richard Weinberger , David Woodhouse , Brian Norris , Marek Vasut , Nicolas Ferre , Alexandre Belloni , Kamal Dasu , Masahiro Yamada , Han Xu , Harvey Hunt , Vladimir Zapolskiy , Sylvain Lemieux , Xiaolei Li , Matthias Brugger , Maxime Ripard , Chen-Yu Tsai , Marc Gonzalez , Mans Rullgard , Stefan Agner Subject: [PATCH v2 15/32] mtd: rawnand: mtk: convert driver to nand_scan() Date: Wed, 4 Jul 2018 00:00:12 +0200 Message-Id: <20180703220029.19565-16-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180703220029.19565-1-miquel.raynal@bootlin.com> References: <20180703220029.19565-1-miquel.raynal@bootlin.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180703_180128_585117_AC7B3217 X-CRM114-Status: GOOD ( 16.88 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bcm-kernel-feedback-list@broadcom.com, linux-mediatek@lists.infradead.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Two helpers have been added to the core to make ECC-related configuration between the detection phase and the final NAND scan. Use these hooks and convert the driver to just use nand_scan() instead of both nand_scan_ident() and nand_scan_tail(). Signed-off-by: Miquel Raynal --- drivers/mtd/nand/raw/mtk_nand.c | 71 +++++++++++++++++++++++------------------ 1 file changed, 40 insertions(+), 31 deletions(-) diff --git a/drivers/mtd/nand/raw/mtk_nand.c b/drivers/mtd/nand/raw/mtk_nand.c index 75c845adb050..a81cd36596e1 100644 --- a/drivers/mtd/nand/raw/mtk_nand.c +++ b/drivers/mtd/nand/raw/mtk_nand.c @@ -1250,13 +1250,50 @@ static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd) return 0; } +static int mtk_nfc_attach_chip(struct nand_chip *chip) +{ + struct mtd_info *mtd = nand_to_mtd(chip); + struct device *dev = mtd->dev.parent; + struct mtk_nfc *nfc = nand_get_controller_data(chip); + struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip); + int len; + int ret; + + if (chip->options & NAND_BUSWIDTH_16) { + dev_err(dev, "16bits buswidth not supported"); + return -EINVAL; + } + + /* store bbt magic in page, cause OOB is not protected */ + if (chip->bbt_options & NAND_BBT_USE_FLASH) + chip->bbt_options |= NAND_BBT_NO_OOB; + + ret = mtk_nfc_ecc_init(dev, mtd); + if (ret) + return ret; + + ret = mtk_nfc_set_spare_per_sector(&mtk_nand->spare_per_sector, mtd); + if (ret) + return ret; + + mtk_nfc_set_fdm(&mtk_nand->fdm, mtd); + mtk_nfc_set_bad_mark_ctl(&mtk_nand->bad_mark, mtd); + + len = mtd->writesize + mtd->oobsize; + nfc->buffer = devm_kzalloc(dev, len, GFP_KERNEL); + if (!nfc->buffer) + return -ENOMEM; + + return 0; +} + static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc, struct device_node *np) { struct mtk_nfc_nand_chip *chip; struct nand_chip *nand; struct mtd_info *mtd; - int nsels, len; + int nsels; u32 tmp; int ret; int i; @@ -1324,36 +1361,8 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc, mtk_nfc_hw_init(nfc); - ret = nand_scan_ident(mtd, nsels, NULL); - if (ret) - return ret; - - /* store bbt magic in page, cause OOB is not protected */ - if (nand->bbt_options & NAND_BBT_USE_FLASH) - nand->bbt_options |= NAND_BBT_NO_OOB; - - ret = mtk_nfc_ecc_init(dev, mtd); - if (ret) - return -EINVAL; - - if (nand->options & NAND_BUSWIDTH_16) { - dev_err(dev, "16bits buswidth not supported"); - return -EINVAL; - } - - ret = mtk_nfc_set_spare_per_sector(&chip->spare_per_sector, mtd); - if (ret) - return ret; - - mtk_nfc_set_fdm(&chip->fdm, mtd); - mtk_nfc_set_bad_mark_ctl(&chip->bad_mark, mtd); - - len = mtd->writesize + mtd->oobsize; - nfc->buffer = devm_kzalloc(dev, len, GFP_KERNEL); - if (!nfc->buffer) - return -ENOMEM; - - ret = nand_scan_tail(mtd); + nand->controller->attach_chip = mtk_nfc_attach_chip; + ret = nand_scan(mtd, nsels); if (ret) return ret;