From patchwork Fri Jul 20 15:15:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 10537851 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 775E9603B5 for ; Fri, 20 Jul 2018 15:30:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 645DA29756 for ; Fri, 20 Jul 2018 15:30:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 579032978E; Fri, 20 Jul 2018 15:30:40 +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 E405E29756 for ; Fri, 20 Jul 2018 15:30:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=1JFYhtF7+RSDn8BiZF8NSC/cL7gioqFnHb6kSfmXA4o=; b=IITyYiqIXDCO4xqcjnaA0WeHBm Qjw4KdRL/PWVhHx+ePMsJafHt7xuAiunxCyq03TqnhEffAjgK9AQ45J17BeF0h3vZZak3cDR30IkB cF4OfUhHvrJ8S/FLn8rKcB8l2/xOOI164jFoj/iknZkKFUH8Xih+tsYIGotQ63pOokd2o+0n8WMU9 uUo3G4jdBCFhzU6SqMIsQv0l19rtT+Tk75qe1IYZ4wYhFCEjJkw1TlvvVm1NcHRMVFS33i/73N/QQ Y/voWjyM3ht8nifnYPwSP2AP2qkilr+tzqz4qzvtZ9/svgJgirN5f4KMM4Xkgby5zEOU5pUP7o02A L3zCsRcQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fgXMb-00081U-Rn; Fri, 20 Jul 2018 15:30:37 +0000 Received: from mail.bootlin.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fgX8e-0006Ph-I2; Fri, 20 Jul 2018 15:16:24 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id 8B0FC209A2; Fri, 20 Jul 2018 17:16:00 +0200 (CEST) Received: from localhost.localdomain (AAubervilliers-681-1-78-122.w90-88.abo.wanadoo.fr [90.88.20.122]) by mail.bootlin.com (Postfix) with ESMTPSA id 782D1209B7; Fri, 20 Jul 2018 17:15:43 +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 v4 26/35] mtd: rawnand: atmel: convert driver to nand_scan() Date: Fri, 20 Jul 2018 17:15:18 +0200 Message-Id: <20180720151527.16038-27-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180720151527.16038-1-miquel.raynal@bootlin.com> References: <20180720151527.16038-1-miquel.raynal@bootlin.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180720_081613_026261_07941BCA X-CRM114-Status: GOOD ( 19.07 ) 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/atmel/nand-controller.c | 83 ++++++++++++++-------------- 1 file changed, 40 insertions(+), 43 deletions(-) diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c index 855cc7729c43..0bc7e2abc885 100644 --- a/drivers/mtd/nand/raw/atmel/nand-controller.c +++ b/drivers/mtd/nand/raw/atmel/nand-controller.c @@ -202,7 +202,7 @@ struct atmel_nand_controller_ops { int (*remove)(struct atmel_nand_controller *nc); void (*nand_init)(struct atmel_nand_controller *nc, struct atmel_nand *nand); - int (*ecc_init)(struct atmel_nand *nand); + int (*ecc_init)(struct nand_chip *chip); int (*setup_data_interface)(struct atmel_nand *nand, int csline, const struct nand_data_interface *conf); }; @@ -1133,9 +1133,8 @@ static int atmel_nand_pmecc_init(struct nand_chip *chip) return 0; } -static int atmel_nand_ecc_init(struct atmel_nand *nand) +static int atmel_nand_ecc_init(struct nand_chip *chip) { - struct nand_chip *chip = &nand->base; struct atmel_nand_controller *nc; int ret; @@ -1170,12 +1169,11 @@ static int atmel_nand_ecc_init(struct atmel_nand *nand) return 0; } -static int atmel_hsmc_nand_ecc_init(struct atmel_nand *nand) +static int atmel_hsmc_nand_ecc_init(struct nand_chip *chip) { - struct nand_chip *chip = &nand->base; int ret; - ret = atmel_nand_ecc_init(nand); + ret = atmel_nand_ecc_init(chip); if (ret) return ret; @@ -1558,22 +1556,6 @@ static void atmel_hsmc_nand_init(struct atmel_nand_controller *nc, chip->select_chip = atmel_hsmc_nand_select_chip; } -static int atmel_nand_detect(struct atmel_nand *nand) -{ - struct nand_chip *chip = &nand->base; - struct mtd_info *mtd = nand_to_mtd(chip); - struct atmel_nand_controller *nc; - int ret; - - nc = to_nand_controller(chip->controller); - - ret = nand_scan_ident(mtd, nand->numcs, NULL); - if (ret) - dev_err(nc->dev, "nand_scan_ident() failed: %d\n", ret); - - return ret; -} - static int atmel_nand_unregister(struct atmel_nand *nand) { struct nand_chip *chip = &nand->base; @@ -1595,7 +1577,6 @@ static int atmel_nand_register(struct atmel_nand *nand) struct nand_chip *chip = &nand->base; struct mtd_info *mtd = nand_to_mtd(chip); struct atmel_nand_controller *nc; - int ret; nc = to_nand_controller(chip->controller); @@ -1626,21 +1607,6 @@ static int atmel_nand_register(struct atmel_nand *nand) } } - ret = nand_scan_tail(mtd); - if (ret) { - dev_err(nc->dev, "nand_scan_tail() failed: %d\n", ret); - return ret; - } - - ret = mtd_device_register(mtd, NULL, 0); - if (ret) { - dev_err(nc->dev, "Failed to register mtd device: %d\n", ret); - nand_cleanup(chip); - return ret; - } - - list_add_tail(&nand->node, &nc->chips); - return 0; } @@ -1755,6 +1721,8 @@ static int atmel_nand_controller_add_nand(struct atmel_nand_controller *nc, struct atmel_nand *nand) { + struct nand_chip *chip = &nand->base; + struct mtd_info *mtd = nand_to_mtd(chip); int ret; /* No card inserted, skip this NAND. */ @@ -1765,15 +1733,30 @@ atmel_nand_controller_add_nand(struct atmel_nand_controller *nc, nc->caps->ops->nand_init(nc, nand); - ret = atmel_nand_detect(nand); - if (ret) + ret = nand_scan(mtd, nand->numcs); + if (ret) { + dev_err(nc->dev, "NAND scan failed: %d\n", ret); return ret; + } - ret = nc->caps->ops->ecc_init(nand); + ret = atmel_nand_register(nand); if (ret) - return ret; + goto cleanup_nand; + + ret = mtd_device_register(mtd, NULL, 0); + if (ret) { + dev_err(nc->dev, "Failed to register mtd device: %d\n", ret); + goto cleanup_nand; + } + + list_add_tail(&nand->node, &nc->chips); + + return 0; + +cleanup_nand: + nand_cleanup(chip); - return atmel_nand_register(nand); + return ret; } static int @@ -1958,6 +1941,19 @@ static const struct of_device_id atmel_matrix_of_ids[] = { { /* sentinel */ }, }; +static int atmel_nand_attach_chip(struct nand_chip *chip) +{ + struct atmel_nand_controller *nc; + + nc = to_nand_controller(chip->controller); + + return nc->caps->ops->ecc_init(chip); +} + +static const struct nand_controller_ops atmel_nand_controller_ops = { + .attach_chip = atmel_nand_attach_chip, +}; + static int atmel_nand_controller_init(struct atmel_nand_controller *nc, struct platform_device *pdev, const struct atmel_nand_controller_caps *caps) @@ -1967,6 +1963,7 @@ static int atmel_nand_controller_init(struct atmel_nand_controller *nc, int ret; nand_controller_init(&nc->base); + nc->base.ops = &atmel_nand_controller_ops; INIT_LIST_HEAD(&nc->chips); nc->dev = dev; nc->caps = caps;