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=-8.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=unavailable 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 56971C433E0 for ; Tue, 26 May 2020 22:42:20 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 27D77208C3 for ; Tue, 26 May 2020 22:42:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="GrLeja4E" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 27D77208C3 Authentication-Results: mail.kernel.org; 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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdiGs-00062L-SR; Tue, 26 May 2020 22:42:06 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdiGq-00061c-1M for linux-mtd@lists.infradead.org; Tue, 26 May 2020 22:42:05 +0000 Received: from localhost (unknown [IPv6:2a01:e0a:2c:6930:b93f:9fae:b276:a89a]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: bbrezillon) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 5904C2A3607; Tue, 26 May 2020 23:42:02 +0100 (BST) Date: Wed, 27 May 2020 00:41:59 +0200 From: Boris Brezillon To: Miquel Raynal Subject: Re: [RESEND v5 05/21] mtd: rawnand: Return an enum from of_get_nand_ecc_algo() Message-ID: <20200527004159.0a8e29a6@collabora.com> In-Reply-To: <20200526195633.11543-6-miquel.raynal@bootlin.com> References: <20200526195633.11543-1-miquel.raynal@bootlin.com> <20200526195633.11543-6-miquel.raynal@bootlin.com> Organization: Collabora X-Mailer: Claws Mail 3.17.5 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200526_154204_207142_4D151EAC X-CRM114-Status: GOOD ( 18.10 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Vignesh Raghavendra , Tudor Ambarus , Richard Weinberger , Rob Herring , linux-mtd@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On Tue, 26 May 2020 21:56:17 +0200 Miquel Raynal wrote: > There is an enumeration to list ECC algorithm, let's use it instead of > returning an int. > > Signed-off-by: Miquel Raynal Reviewed-by: Boris Brezillon > --- > drivers/mtd/nand/raw/nand_base.c | 35 +++++++++++++++++--------------- > 1 file changed, 19 insertions(+), 16 deletions(-) > > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c > index 7176e513a0bb..a756f3193558 100644 > --- a/drivers/mtd/nand/raw/nand_base.c > +++ b/drivers/mtd/nand/raw/nand_base.c > @@ -5048,17 +5048,20 @@ static const char * const nand_ecc_algos[] = { > [NAND_ECC_RS] = "rs", > }; > > -static int of_get_nand_ecc_algo(struct device_node *np) > +static enum nand_ecc_algo of_get_nand_ecc_algo(struct device_node *np) > { > + enum nand_ecc_algo ecc_algo; > const char *pm; > - int err, i; > + int err; > > err = of_property_read_string(np, "nand-ecc-algo", &pm); > if (!err) { > - for (i = NAND_ECC_HAMMING; i < ARRAY_SIZE(nand_ecc_algos); i++) > - if (!strcasecmp(pm, nand_ecc_algos[i])) > - return i; > - return -ENODEV; > + for (ecc_algo = NAND_ECC_HAMMING; > + ecc_algo < ARRAY_SIZE(nand_ecc_algos); > + ecc_algo++) { > + if (!strcasecmp(pm, nand_ecc_algos[ecc_algo])) > + return ecc_algo; > + } > } > > /* > @@ -5066,15 +5069,14 @@ static int of_get_nand_ecc_algo(struct device_node *np) > * for some obsoleted values that were specifying ECC algorithm. > */ > err = of_property_read_string(np, "nand-ecc-mode", &pm); > - if (err < 0) > - return err; > + if (!err) { > + if (!strcasecmp(pm, "soft")) > + return NAND_ECC_HAMMING; > + else if (!strcasecmp(pm, "soft_bch")) > + return NAND_ECC_BCH; > + } > > - if (!strcasecmp(pm, "soft")) > - return NAND_ECC_HAMMING; > - else if (!strcasecmp(pm, "soft_bch")) > - return NAND_ECC_BCH; > - > - return -ENODEV; > + return NAND_ECC_UNKNOWN; > } > > static int of_get_nand_ecc_step_size(struct device_node *np) > @@ -5119,7 +5121,8 @@ static bool of_get_nand_on_flash_bbt(struct device_node *np) > static int nand_dt_init(struct nand_chip *chip) > { > struct device_node *dn = nand_get_flash_node(chip); > - int ecc_mode, ecc_algo, ecc_strength, ecc_step; > + enum nand_ecc_algo ecc_algo; > + int ecc_mode, ecc_strength, ecc_step; > > if (!dn) > return 0; > @@ -5141,7 +5144,7 @@ static int nand_dt_init(struct nand_chip *chip) > if (ecc_mode >= 0) > chip->ecc.mode = ecc_mode; > > - if (ecc_algo >= 0) > + if (ecc_algo != NAND_ECC_UNKNOWN) > chip->ecc.algo = ecc_algo; > > if (ecc_strength >= 0) ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/