From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: [PATCH v5 36/50] mtd: nand: jz4780: switch to mtd_ooblayout_ops Date: Wed, 30 Mar 2016 18:14:51 +0200 Message-ID: <1459354505-32551-37-git-send-email-boris.brezillon@free-electrons.com> References: <1459354505-32551-1-git-send-email-boris.brezillon@free-electrons.com> Reply-To: boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-Reply-To: <1459354505-32551-1-git-send-email-boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: David Woodhouse , Brian Norris , linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Boris Brezillon , Richard Weinberger Cc: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Kukjin Kim , Krzysztof Kozlowski , linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Ralf Baechle , linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, Nicolas Ferre , Jean-Christophe Plagniol-Villard , Alexandre Belloni , Wenyou Yang , Josh Wu , Ezequiel Garcia , Maxime Ripard , Chen-Yu Tsai , linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, Stefan Agner , Kyungmin Park , Greg Kroah-Hartman , devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org List-Id: linux-api@vger.kernel.org Implementing the mtd_ooblayout_ops interface is the new way of exposing ECC/OOB layout to MTD users. Signed-off-by: Boris Brezillon Tested-by: Harvey Hunt --- drivers/mtd/nand/jz4780_nand.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c index e1c016c..b86a579 100644 --- a/drivers/mtd/nand/jz4780_nand.c +++ b/drivers/mtd/nand/jz4780_nand.c @@ -56,8 +56,6 @@ struct jz4780_nand_chip { struct nand_chip chip; struct list_head chip_list; - struct nand_ecclayout ecclayout; - struct gpio_desc *busy_gpio; struct gpio_desc *wp_gpio; unsigned int reading: 1; @@ -165,8 +163,7 @@ static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *de struct nand_chip *chip = &nand->chip; struct mtd_info *mtd = nand_to_mtd(chip); struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller); - struct nand_ecclayout *layout = &nand->ecclayout; - u32 start, i; + int eccbytes; chip->ecc.bytes = fls((1 + 8) * chip->ecc.size) * (chip->ecc.strength / 8); @@ -201,23 +198,17 @@ static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *de return 0; /* Generate ECC layout. ECC codes are right aligned in the OOB area. */ - layout->eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes; + eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes; - if (layout->eccbytes > mtd->oobsize - 2) { + if (eccbytes > mtd->oobsize - 2) { dev_err(dev, "invalid ECC config: required %d ECC bytes, but only %d are available", - layout->eccbytes, mtd->oobsize - 2); + eccbytes, mtd->oobsize - 2); return -EINVAL; } - start = mtd->oobsize - layout->eccbytes; - for (i = 0; i < layout->eccbytes; i++) - layout->eccpos[i] = start + i; - - layout->oobfree[0].offset = 2; - layout->oobfree[0].length = mtd->oobsize - layout->eccbytes - 2; + mtd->ooblayout = &nand_ooblayout_lp_ops; - chip->ecc.layout = layout; return 0; } -- 2.5.0