From patchwork Thu Jul 19 22:59:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 10535585 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 23F5C601D2 for ; Thu, 19 Jul 2018 23:13:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1AE0729B43 for ; Thu, 19 Jul 2018 23:13:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0F27729B45; Thu, 19 Jul 2018 23:13:53 +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 9BE9629B43 for ; Thu, 19 Jul 2018 23:13:52 +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=AZWaiFmj2gwiwMHMePdsH5yoB7xVbADZm68469PA3yM=; b=ar/Uj+W+XH2wfrQH0qeAGcm6ty UdvNfvAYxcc5RgnxznW7nCw8ZRrOPnwjiWYBPJdYm3O54CguDw4WAhmLPxWEzZFEFWIQZT/QO0EBu oKmKdGf+g+jNlw1ZAAUF35OznOA9v4anvUqFko1SAvCB2U5pfpdU3ozm21mkqT37E9nzUYSgVe8us I1bz0XIHjAcos7paq7Zj1hjZTii1RfcYnieIWpOiXKV4Y5Xx7XGb2BNQtCcjM2wl0cKbyY/B50lmM uoP/6poUjM1XoxJ4dlLsmg2xGclEViMrP9D5dTEi/kXnrtHxHTuQjq7l3sDRPHKiOjoMFphHqFZ5/ JqoYn5cQ==; 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 1fgI7H-0001jW-4W; Thu, 19 Jul 2018 23:13:47 +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 1fgHue-0005tH-J2; Thu, 19 Jul 2018 23:00:48 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id BA15E20935; Fri, 20 Jul 2018 01:00:42 +0200 (CEST) Received: from localhost.localdomain (unknown [91.224.148.103]) by mail.bootlin.com (Postfix) with ESMTPSA id 08C0320732; Fri, 20 Jul 2018 01:00:40 +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 v3 04/33] mtd: rawnand: denali: convert to nand_scan() Date: Fri, 20 Jul 2018 00:59:57 +0200 Message-Id: <20180719230026.8741-5-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180719230026.8741-1-miquel.raynal@bootlin.com> References: <20180719230026.8741-1-miquel.raynal@bootlin.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180719_160044_926452_FBEF4FD4 X-CRM114-Status: GOOD ( 20.38 ) 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: 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-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/denali.c | 138 +++++++++++++++++++++++------------------- 1 file changed, 77 insertions(+), 61 deletions(-) diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c index 4d53f41ada08..8325e5231abc 100644 --- a/drivers/mtd/nand/raw/denali.c +++ b/drivers/mtd/nand/raw/denali.c @@ -1205,62 +1205,12 @@ static int denali_multidev_fixup(struct denali_nand_info *denali) return 0; } -int denali_init(struct denali_nand_info *denali) +static int denali_attach_chip(struct nand_chip *chip) { - struct nand_chip *chip = &denali->nand; struct mtd_info *mtd = nand_to_mtd(chip); - u32 features = ioread32(denali->reg + FEATURES); + struct denali_nand_info *denali = mtd_to_denali(mtd); int ret; - mtd->dev.parent = denali->dev; - denali_hw_init(denali); - - init_completion(&denali->complete); - spin_lock_init(&denali->irq_lock); - - denali_clear_irq_all(denali); - - ret = devm_request_irq(denali->dev, denali->irq, denali_isr, - IRQF_SHARED, DENALI_NAND_NAME, denali); - if (ret) { - dev_err(denali->dev, "Unable to request IRQ\n"); - return ret; - } - - denali_enable_irq(denali); - denali_reset_banks(denali); - - denali->active_bank = DENALI_INVALID_BANK; - - nand_set_flash_node(chip, denali->dev->of_node); - /* Fallback to the default name if DT did not give "label" property */ - if (!mtd->name) - mtd->name = "denali-nand"; - - chip->select_chip = denali_select_chip; - chip->read_byte = denali_read_byte; - chip->write_byte = denali_write_byte; - chip->read_word = denali_read_word; - chip->cmd_ctrl = denali_cmd_ctrl; - chip->dev_ready = denali_dev_ready; - chip->waitfunc = denali_waitfunc; - - if (features & FEATURES__INDEX_ADDR) { - denali->host_read = denali_indexed_read; - denali->host_write = denali_indexed_write; - } else { - denali->host_read = denali_direct_read; - denali->host_write = denali_direct_write; - } - - /* clk rate info is needed for setup_data_interface */ - if (denali->clk_rate && denali->clk_x_rate) - chip->setup_data_interface = denali_setup_data_interface; - - ret = nand_scan_ident(mtd, denali->max_banks, NULL); - if (ret) - goto disable_irq; - if (ioread32(denali->reg + FEATURES) & FEATURES__DMA) denali->dma_avail = 1; @@ -1293,7 +1243,7 @@ int denali_init(struct denali_nand_info *denali) mtd->oobsize - denali->oob_skip_bytes); if (ret) { dev_err(denali->dev, "Failed to setup ECC settings.\n"); - goto disable_irq; + return ret; } dev_dbg(denali->dev, @@ -1337,7 +1287,7 @@ int denali_init(struct denali_nand_info *denali) ret = denali_multidev_fixup(denali); if (ret) - goto disable_irq; + return ret; /* * This buffer is DMA-mapped by denali_{read,write}_page_raw. Do not @@ -1345,26 +1295,92 @@ int denali_init(struct denali_nand_info *denali) * guarantee DMA-safe alignment. */ denali->buf = kmalloc(mtd->writesize + mtd->oobsize, GFP_KERNEL); - if (!denali->buf) { - ret = -ENOMEM; - goto disable_irq; + if (!denali->buf) + return -ENOMEM; + + return 0; +} + +static void denali_detach_chip(struct nand_chip *chip) +{ + struct mtd_info *mtd = nand_to_mtd(chip); + struct denali_nand_info *denali = mtd_to_denali(mtd); + + kfree(denali->buf); +} + +static struct nand_controller_ops denali_controller_ops = { + .attach_chip = denali_attach_chip, + .detach_chip = denali_detach_chip, +}; + +int denali_init(struct denali_nand_info *denali) +{ + struct nand_chip *chip = &denali->nand; + struct mtd_info *mtd = nand_to_mtd(chip); + u32 features = ioread32(denali->reg + FEATURES); + int ret; + + mtd->dev.parent = denali->dev; + denali_hw_init(denali); + + init_completion(&denali->complete); + spin_lock_init(&denali->irq_lock); + + denali_clear_irq_all(denali); + + ret = devm_request_irq(denali->dev, denali->irq, denali_isr, + IRQF_SHARED, DENALI_NAND_NAME, denali); + if (ret) { + dev_err(denali->dev, "Unable to request IRQ\n"); + return ret; + } + + denali_enable_irq(denali); + denali_reset_banks(denali); + + denali->active_bank = DENALI_INVALID_BANK; + + nand_set_flash_node(chip, denali->dev->of_node); + /* Fallback to the default name if DT did not give "label" property */ + if (!mtd->name) + mtd->name = "denali-nand"; + + chip->select_chip = denali_select_chip; + chip->read_byte = denali_read_byte; + chip->write_byte = denali_write_byte; + chip->read_word = denali_read_word; + chip->cmd_ctrl = denali_cmd_ctrl; + chip->dev_ready = denali_dev_ready; + chip->waitfunc = denali_waitfunc; + + if (features & FEATURES__INDEX_ADDR) { + denali->host_read = denali_indexed_read; + denali->host_write = denali_indexed_write; + } else { + denali->host_read = denali_direct_read; + denali->host_write = denali_direct_write; } - ret = nand_scan_tail(mtd); + /* clk rate info is needed for setup_data_interface */ + if (denali->clk_rate && denali->clk_x_rate) + chip->setup_data_interface = denali_setup_data_interface; + + chip->dummy_controller.ops = &denali_controller_ops; + ret = nand_scan(mtd, denali->max_banks); if (ret) - goto free_buf; + goto disable_irq; ret = mtd_device_register(mtd, NULL, 0); if (ret) { dev_err(denali->dev, "Failed to register MTD: %d\n", ret); goto cleanup_nand; } + return 0; cleanup_nand: nand_cleanup(chip); -free_buf: - kfree(denali->buf); disable_irq: denali_disable_irq(denali);