From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6416ECDFBB for ; Sat, 21 Jul 2018 17:52:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 773EC20849 for ; Sat, 21 Jul 2018 17:52:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 773EC20849 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728273AbeGUSqD (ORCPT ); Sat, 21 Jul 2018 14:46:03 -0400 Received: from mail.bootlin.com ([62.4.15.54]:50274 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727458AbeGUSqD (ORCPT ); Sat, 21 Jul 2018 14:46:03 -0400 Received: by mail.bootlin.com (Postfix, from userid 110) id 02B2C20717; Sat, 21 Jul 2018 19:52:29 +0200 (CEST) Received: from bbrezillon (unknown [37.173.79.60]) by mail.bootlin.com (Postfix) with ESMTPSA id 17D7A206F3; Sat, 21 Jul 2018 19:52:17 +0200 (CEST) Date: Sat, 21 Jul 2018 19:52:15 +0200 From: Boris Brezillon To: Miquel Raynal Cc: Wenyou Yang , Josh Wu , Tudor Ambarus , 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 , linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-mediatek@lists.infradead.org Subject: Re: [PATCH v4 22/35] mtd: rawnand: tango: convert driver to nand_scan() Message-ID: <20180721195215.425258cc@bbrezillon> In-Reply-To: <20180720151527.16038-23-miquel.raynal@bootlin.com> References: <20180720151527.16038-1-miquel.raynal@bootlin.com> <20180720151527.16038-23-miquel.raynal@bootlin.com> X-Mailer: Claws Mail 3.15.0-dirty (GTK+ 2.24.31; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 20 Jul 2018 17:15:14 +0200 Miquel Raynal wrote: > 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/tango_nand.c | 40 +++++++++++++++++++++++---------------- > 1 file changed, 24 insertions(+), 16 deletions(-) > > diff --git a/drivers/mtd/nand/raw/tango_nand.c b/drivers/mtd/nand/raw/tango_nand.c > index dd7a26efdf4f..a448d0797cd5 100644 > --- a/drivers/mtd/nand/raw/tango_nand.c > +++ b/drivers/mtd/nand/raw/tango_nand.c > @@ -517,6 +517,28 @@ static int tango_set_timings(struct mtd_info *mtd, int csline, > return 0; > } > > +static int tango_attach_chip(struct nand_chip *chip) > +{ > + struct nand_ecc_ctrl *ecc = &chip->ecc; > + > + ecc->mode = NAND_ECC_HW; > + ecc->algo = NAND_ECC_BCH; > + ecc->bytes = DIV_ROUND_UP(ecc->strength * FIELD_ORDER, BITS_PER_BYTE); > + > + ecc->read_page_raw = tango_read_page_raw; > + ecc->write_page_raw = tango_write_page_raw; > + ecc->read_page = tango_read_page; > + ecc->write_page = tango_write_page; > + ecc->read_oob = tango_read_oob; > + ecc->write_oob = tango_write_oob; > + > + return 0; > +} > + > +static const struct nand_controller_ops tango_controller_ops = { > + .attach_chip = tango_attach_chip, > +}; > + > static int chip_init(struct device *dev, struct device_node *np) > { > u32 cs; > @@ -560,28 +582,14 @@ static int chip_init(struct device *dev, struct device_node *np) > NAND_NO_SUBPAGE_WRITE | > NAND_WAIT_TCCS; > chip->controller = &nfc->hw; > + chip->controller->ops = &tango_controller_ops; Move this assignment here [1]. With that fixed: Reviewed-by: Boris Brezillon > tchip->base = nfc->pbus_base + (cs * 256); > > nand_set_flash_node(chip, np); > mtd_set_ooblayout(mtd, &tango_nand_ooblayout_ops); > mtd->dev.parent = dev; > > - err = nand_scan_ident(mtd, 1, NULL); > - if (err) > - return err; > - > - ecc->mode = NAND_ECC_HW; > - ecc->algo = NAND_ECC_BCH; > - ecc->bytes = DIV_ROUND_UP(ecc->strength * FIELD_ORDER, BITS_PER_BYTE); > - > - ecc->read_page_raw = tango_read_page_raw; > - ecc->write_page_raw = tango_write_page_raw; > - ecc->read_page = tango_read_page; > - ecc->write_page = tango_write_page; > - ecc->read_oob = tango_read_oob; > - ecc->write_oob = tango_write_oob; > - > - err = nand_scan_tail(mtd); > + err = nand_scan(mtd, 1); > if (err) > return err; > [1]https://elixir.bootlin.com/linux/v4.18-rc5/source/drivers/mtd/nand/raw/tango_nand.c#L657