From patchwork Fri Mar 2 17:03:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 10255279 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 89E6C6037F for ; Fri, 2 Mar 2018 17:34:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7974826E96 for ; Fri, 2 Mar 2018 17:34:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6D5D32766D; Fri, 2 Mar 2018 17:34:28 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham 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 A90F426E96 for ; Fri, 2 Mar 2018 17:34:27 +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=PIn1jyJAPTNpLTI7TBRrGkESxxMwoL1k0HeiGRXz8CY=; b=i6/oy10zJxdsdTvtKIhdzgZopk TK+jVt0hEAn3pmJr9psBpTyss/w5dtdHnccqeOtX1Lcdh6bmiIRp21U8eGp/TRrG6aDE3rDzZuMRx d4SP9Y7nWdPSi1Notogr9QrHi4V/kh7tgJa5SuHyMcV1TYSNN6t73T6EGPgzD5+X9qq2dsfoU47j+ Ak8HTs/ZWCpUbFfucMDostTk3as2fbO8yyC7OAaxIIGWLscp2mNJzbqP0atUELj3GGJJDyDE85tdA o3Rp8bD0OmguLo5HHirUhvZ0pwM7VHhVNlP3SK0cNnjn2u3+mhK/YrDe5ls9QVteBT04kHS40JVke NOU4J5RA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1eroZY-0003wT-Q4; Fri, 02 Mar 2018 17:34:20 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1eroA4-0005sL-4C; Fri, 02 Mar 2018 17:08:00 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=jrZR85x34oJ22fddMToM0cMnvA4Of3e1oJM+88XcooI=; b=K4xhVxnvd0YrL4xVorWbCUPyx N9OFp+pLJFSJ8ajaamyqNQL/sqqsLcFvK369HVlIOMhb3L6H5y7kuqTOP1FdyVXvN/KyoSzHGVyCk yH74aEH9h965cIGRTNkmCkGpaph8vk8M9D4aZidZJkicQdAz498Md2mtG+/zIVAzKdTibT8dWmkic NUOthgOd+PpiKBPXfETOA+YXdGKDEn2Sqhw5l5E+z/O+MjH5XB9ZrmfgRIsAzEH4aEWIZAF+YWQb0 XDD5PDVCIcRU0t5dBe6S2NRVkbMU1lzcy8mfq0M11ETWCfX8aydj7tH+guRNelgOdw2gwaRXmmVbR 70HlGmSZg==; Received: from mail.bootlin.com ([62.4.15.54]) by casper.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1ero7D-0005rl-M9; Fri, 02 Mar 2018 17:05:09 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id EDD34209FE; Fri, 2 Mar 2018 18:04:45 +0100 (CET) Received: from localhost.localdomain (unknown [91.224.148.103]) by mail.bootlin.com (Postfix) with ESMTPSA id 0745520379; Fri, 2 Mar 2018 18:04:44 +0100 (CET) From: Miquel Raynal To: Boris Brezillon , Richard Weinberger , David Woodhouse , Brian Norris , Marek Vasut , Cyrille Pitchen , Josh Wu , Kamal Dasu , Harvey Hunt , Stefan Agner Subject: [PATCH 49/52] mtd: rawnand: qcom: convert driver to nand_scan() Date: Fri, 2 Mar 2018 18:03:57 +0100 Message-Id: <20180302170400.6712-50-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180302170400.6712-1-miquel.raynal@bootlin.com> References: <20180302170400.6712-1-miquel.raynal@bootlin.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180302_170503_792407_A612A4F1 X-CRM114-Status: GOOD ( 19.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Miquel Raynal MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=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/qcom_nandc.c | 67 ++++++++++++--------------------------- 1 file changed, 20 insertions(+), 47 deletions(-) diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index b554fb6e609c..d45b4e50e6a5 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -2315,10 +2315,10 @@ static const struct mtd_ooblayout_ops qcom_nand_ooblayout_ops = { .free = qcom_nand_ooblayout_free, }; -static int qcom_nand_host_setup(struct qcom_nand_host *host) +static int qcom_nand_attach_chip(struct nand_chip *chip) { - struct nand_chip *chip = &host->chip; struct mtd_info *mtd = nand_to_mtd(chip); + struct qcom_nand_host *host = to_qcom_nand_host(chip); struct nand_ecc_ctrl *ecc = &chip->ecc; struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip); int cwperpage, bad_block_byte; @@ -2623,9 +2623,9 @@ static int qcom_nandc_setup(struct qcom_nand_controller *nandc) return 0; } -static int qcom_nand_host_init(struct qcom_nand_controller *nandc, - struct qcom_nand_host *host, - struct device_node *dn) +static int qcom_nand_host_init_and_register(struct qcom_nand_controller *nandc, + struct qcom_nand_host *host, + struct device_node *dn) { struct nand_chip *chip = &host->chip; struct mtd_info *mtd = nand_to_mtd(chip); @@ -2672,30 +2672,14 @@ static int qcom_nand_host_init(struct qcom_nand_controller *nandc, /* set up initial status value */ host->status = NAND_STATUS_READY | NAND_STATUS_WP; - ret = nand_scan_ident(mtd, 1, NULL); - if (ret) - return ret; - - ret = qcom_nand_host_setup(host); - - return ret; -} - -static int qcom_nand_mtd_register(struct qcom_nand_controller *nandc, - struct qcom_nand_host *host, - struct device_node *dn) -{ - struct nand_chip *chip = &host->chip; - struct mtd_info *mtd = nand_to_mtd(chip); - int ret; - - ret = nand_scan_tail(mtd); + chip->ecc.attach_chip = qcom_nand_attach_chip; + ret = nand_scan(mtd, 1); if (ret) return ret; ret = mtd_device_register(mtd, NULL, 0); if (ret) - nand_cleanup(mtd_to_nand(mtd)); + nand_cleanup(chip); return ret; } @@ -2704,9 +2688,19 @@ static int qcom_probe_nand_devices(struct qcom_nand_controller *nandc) { struct device *dev = nandc->dev; struct device_node *dn = dev->of_node, *child; - struct qcom_nand_host *host, *tmp; + struct qcom_nand_host *host; int ret; + if (nandc->props->is_bam) { + free_bam_transaction(nandc); + nandc->bam_txn = alloc_bam_transaction(nandc); + if (!nandc->bam_txn) { + dev_err(nandc->dev, + "failed to allocate bam transaction\n"); + return -ENOMEM; + } + } + for_each_available_child_of_node(dn, child) { host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL); if (!host) { @@ -2714,7 +2708,7 @@ static int qcom_probe_nand_devices(struct qcom_nand_controller *nandc) return -ENOMEM; } - ret = qcom_nand_host_init(nandc, host, child); + ret = qcom_nand_host_init_and_register(nandc, host, child); if (ret) { devm_kfree(dev, host); continue; @@ -2723,27 +2717,6 @@ static int qcom_probe_nand_devices(struct qcom_nand_controller *nandc) list_add_tail(&host->node, &nandc->host_list); } - if (list_empty(&nandc->host_list)) - return -ENODEV; - - if (nandc->props->is_bam) { - free_bam_transaction(nandc); - nandc->bam_txn = alloc_bam_transaction(nandc); - if (!nandc->bam_txn) { - dev_err(nandc->dev, - "failed to allocate bam transaction\n"); - return -ENOMEM; - } - } - - list_for_each_entry_safe(host, tmp, &nandc->host_list, node) { - ret = qcom_nand_mtd_register(nandc, host, child); - if (ret) { - list_del(&host->node); - devm_kfree(dev, host); - } - } - if (list_empty(&nandc->host_list)) return -ENODEV;