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=-9.8 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_GIT 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 5480DCA9EA0 for ; Mon, 28 Oct 2019 09:31:14 +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 BE2E820B7C for ; Mon, 28 Oct 2019 09:31:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="CwvpSXFy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE2E820B7C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mxic.com.tw Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org 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=z+sBTfAMp1xZ9rrzHiw2E+HdH47zthTBd++Q6dju3rQ=; b=CwvpSXFyPafEzcB4ik3DsJW8Xc NQhbDS9UjQqkmaJdbP6DMUTJ/8kMXtasTrhVSPaJiWvPzyNxZFbFIR0PkGZnuYilcvf06o089TeIy QbZjAbjAYj0s8J6d+1dTCGGC0f6S7ws3Y0hodwvhO/2n/ikdXFarHVFrkuL0cQkHc+Z2smCKBHA0A cJF3lyrtMLbE+MNELgvaEhFzKbTAR6hXSjq5HsqB8DBf9xP7411NhAcm2cgzyBbBk6b/uUhaw3YzM 9YMa1xC/jBSGeVCqK9Ledh49pd07VZMxVt19A4y9bQTKcoc7OW4TfNKaY4myQfpf2AIrotkO5fDwC eXTg7BOQ==; 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 1iP1Ma-0002fN-GA; Mon, 28 Oct 2019 09:31:00 +0000 Received: from twhmllg4.macronix.com ([211.75.127.132]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iP1Ly-00022L-Iu for linux-mtd@lists.infradead.org; Mon, 28 Oct 2019 09:30:25 +0000 Received: from localhost.localdomain ([172.17.195.96]) by TWHMLLG4.macronix.com with ESMTP id x9S9TQPN013435; Mon, 28 Oct 2019 17:29:27 +0800 (GMT-8) (envelope-from masonccyang@mxic.com.tw) From: Mason Yang To: miquel.raynal@bootlin.com, richard@nod.at, marek.vasut@gmail.com, dwmw2@infradead.org, bbrezillon@kernel.org, computersforpeace@gmail.com, vigneshr@ti.com Subject: [PATCH v2 1/4] mtd: rawnand: Add support manufacturer specific lock/unlock operatoin Date: Mon, 28 Oct 2019 17:55:24 +0800 Message-Id: <1572256527-5074-2-git-send-email-masonccyang@mxic.com.tw> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1572256527-5074-1-git-send-email-masonccyang@mxic.com.tw> References: <1572256527-5074-1-git-send-email-masonccyang@mxic.com.tw> X-MAIL: TWHMLLG4.macronix.com x9S9TQPN013435 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191028_023022_909129_4F01B66A X-CRM114-Status: UNSURE ( 9.70 ) X-CRM114-Notice: Please train this message. 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: juliensu@mxic.com.tw, masonccyang@mxic.com.tw, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org MIME-Version: 1.0 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 Add nand_lock() & nand_unlock() for manufacturer specific lock & unlock operation while the device supports Block Protection function. Signed-off-by: Mason Yang --- drivers/mtd/nand/raw/nand_base.c | 32 ++++++++++++++++++++++++++++++-- include/linux/mtd/rawnand.h | 3 +++ 2 files changed, 33 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index 5c2c30a..5e318ff 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -4356,6 +4356,34 @@ static void nand_shutdown(struct mtd_info *mtd) nand_suspend(mtd); } +/** + * nand_lock - [MTD Interface] Lock the NAND flash + * @mtd: MTD device structure + */ +static int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) +{ + struct nand_chip *chip = mtd_to_nand(mtd); + + if (!chip->_lock) + return -ENOTSUPP; + + return chip->_lock(chip, ofs, len); +} + +/** + * nand_unlock - [MTD Interface] Unlock the NAND flash + * @mtd: MTD device structure + */ +static int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) +{ + struct nand_chip *chip = mtd_to_nand(mtd); + + if (!chip->_unlock) + return -ENOTSUPP; + + return chip->_unlock(chip, ofs, len); +} + /* Set default functions */ static void nand_set_defaults(struct nand_chip *chip) { @@ -5782,8 +5810,8 @@ static int nand_scan_tail(struct nand_chip *chip) mtd->_read_oob = nand_read_oob; mtd->_write_oob = nand_write_oob; mtd->_sync = nand_sync; - mtd->_lock = NULL; - mtd->_unlock = NULL; + mtd->_lock = nand_lock; + mtd->_unlock = nand_unlock; mtd->_suspend = nand_suspend; mtd->_resume = nand_resume; mtd->_reboot = nand_shutdown; diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 4ab9bcc..2430ecd 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1136,6 +1136,9 @@ struct nand_chip { const struct nand_manufacturer *desc; void *priv; } manufacturer; + + int (*_lock)(struct nand_chip *chip, loff_t ofs, uint64_t len); + int (*_unlock)(struct nand_chip *chip, loff_t ofs, uint64_t len); }; extern const struct mtd_ooblayout_ops nand_ooblayout_sp_ops; -- 1.9.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/