From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933960AbcBDKSG (ORCPT ); Thu, 4 Feb 2016 05:18:06 -0500 Received: from down.free-electrons.com ([37.187.137.238]:34644 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933461AbcBDKIB (ORCPT ); Thu, 4 Feb 2016 05:08:01 -0500 From: Boris Brezillon To: David Woodhouse , Brian Norris , linux-mtd@lists.infradead.org Cc: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Kukjin Kim , Krzysztof Kozlowski , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Ralf Baechle , linux-mips@linux-mips.org, Josh Wu , Ezequiel Garcia , Maxime Ripard , Chen-Yu Tsai , linux-sunxi@googlegroups.com, Stefan Agner , Kyungmin Park , Greg Kroah-Hartman , devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, punnaiah choudary kalluri , Priit Laes , Boris Brezillon Subject: [PATCH v2 31/51] mtd: nand: diskonchip: switch to mtd_ooblayout_ops Date: Thu, 4 Feb 2016 11:06:54 +0100 Message-Id: <1454580434-32078-32-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1454580434-32078-1-git-send-email-boris.brezillon@free-electrons.com> References: <1454580434-32078-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@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 --- drivers/mtd/nand/diskonchip.c | 38 +++++++++++++++++++++++++++++++++----- 1 file changed, 33 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index f170f3c..9fb63b4 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -960,10 +960,38 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, * safer. The only problem with it is that any code that parses oobfree must * be able to handle out-of-order segments. */ -static struct nand_ecclayout doc200x_oobinfo = { - .eccbytes = 6, - .eccpos = {0, 1, 2, 3, 4, 5}, - .oobfree = {{8, 8}, {6, 2}} +static int doc200x_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + if (section) + return -ERANGE; + + oobregion->offset = 0; + oobregion->length = 6; + + return 0; +} + +static int doc200x_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + if (section > 1) + return -ERANGE; + + if (!section) { + oobregion->offset = 8; + oobregion->length = 8; + } else { + oobregion->offset = 6; + oobregion->length = 2; + } + + return 0; +} + +static const struct mtd_ooblayout_ops doc200x_ooblayout_ops = { + .ecc = doc200x_ooblayout_ecc, + .free = doc200x_ooblayout_free, }; /* Find the (I)NFTL Media Header, and optionally also the mirror media header. @@ -1537,6 +1565,7 @@ static int __init doc_probe(unsigned long physadr) nand->bbt_md = nand->bbt_td + 1; mtd->owner = THIS_MODULE; + mtd_set_ooblayout(mtd, &doc200x_ooblayout_ops); nand_set_controller_data(nand, doc); nand->select_chip = doc200x_select_chip; @@ -1548,7 +1577,6 @@ static int __init doc_probe(unsigned long physadr) nand->ecc.calculate = doc200x_calculate_ecc; nand->ecc.correct = doc200x_correct_data; - nand->ecc.layout = &doc200x_oobinfo; nand->ecc.mode = NAND_ECC_HW_SYNDROME; nand->ecc.size = 512; nand->ecc.bytes = 6; -- 2.1.4