From patchwork Fri Mar 13 15:46:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 11437335 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3DC5514B4 for ; Fri, 13 Mar 2020 15:59:47 +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 15B2A206EB for ; Fri, 13 Mar 2020 15:59:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="kDJjdrk8"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ti.com header.i=@ti.com header.b="uz6SfjQw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 15B2A206EB Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=yPTTIum2Vw4m0Z1NJ298szace8hguOdj6kyHOqZLxgM=; b=kDJjdrk8sA65Gl IRm/RiZ8JzLutubeMwzJoNzf8Z4tOrcHCsAxSC6Q6iQZfw2N0mZZKQQKLQSUj/0jPk5OEHzm4sISo pn2tC5ksnDUhq0RJNgpZW8oaCidbC0YK9XPg+maH7Y4Rv82/2B6tyUNjtm+qYW4dOxY77gcGx9M6Y IM2OKIFH9/R4sHMUdaDRNQ9eyHiFMD8ORMI9PjmKEqk7nW9VBFnRdaP7u1U6+kVGVNFTQ+88D8GRv CgKkolq9tRrB92vpogcrfazOGqgsYrV4sZ5OYtBoi7k3GLrTUr5x2S0NGtc7jByrKkCv6fNVoNuos d9Mg8CJdQQoXoECxBCnw==; 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 1jCmiu-00059J-Jk; Fri, 13 Mar 2020 15:59:44 +0000 Received: from lelv0142.ext.ti.com ([198.47.23.249]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jCmXD-0000Pa-K1; Fri, 13 Mar 2020 15:47:41 +0000 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02DFlaou062943; Fri, 13 Mar 2020 10:47:36 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1584114456; bh=GCR07WRKEb3uBFyLtrNoiwFaOeGSGBrdACJjmVEVr8A=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=uz6SfjQwP8ojPXmcP8GDbDcyESJzuWd+RuObBiPZou4jqyoe6he/rmCwDRY7z9juz kZ/FtamVNZBFSswi99raooX1kYdHCHOcKNw5g77nZC8T6FYfSRR8/P1qDoyLnl1Ozn PFPcI36zLqc0Z8lm5H8BkY+cyL2s/6EcbmVoYgWg= Received: from DLEE105.ent.ti.com (dlee105.ent.ti.com [157.170.170.35]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02DFla8g090945 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 13 Mar 2020 10:47:36 -0500 Received: from DLEE108.ent.ti.com (157.170.170.38) by DLEE105.ent.ti.com (157.170.170.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Fri, 13 Mar 2020 10:47:36 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Fri, 13 Mar 2020 10:47:36 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02DFkkSP034352; Fri, 13 Mar 2020 10:47:32 -0500 From: Pratyush Yadav To: Tudor Ambarus , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Mark Brown , Nicolas Ferre , Alexandre Belloni , Ludovic Desroches Subject: [PATCH v3 11/12] mtd: spi-nor: Disable Octal DTR mode on suspend. Date: Fri, 13 Mar 2020 21:16:44 +0530 Message-ID: <20200313154645.29293-12-p.yadav@ti.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200313154645.29293-1-p.yadav@ti.com> References: <20200313154645.29293-1-p.yadav@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200313_084739_778516_C5F63140 X-CRM114-Status: GOOD ( 10.67 ) X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [198.47.23.249 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sekhar Nori , linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org, Pratyush Yadav , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org On resume, the init procedure will be run that will re-enable it. Signed-off-by: Pratyush Yadav --- drivers/mtd/spi-nor/spi-nor.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index fcc087ff5148..32f7ecbc38d4 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -5379,6 +5379,23 @@ static void spi_nor_soft_reset(struct spi_nor *nor) usleep_range(SPI_NOR_SRST_SLEEP_MIN, SPI_NOR_SRST_SLEEP_MAX); } +/* mtd suspend handler */ +static int spi_nor_suspend(struct mtd_info *mtd) +{ + struct spi_nor *nor = mtd_to_spi_nor(mtd); + struct device *dev = nor->dev; + int ret; + + /* Disable octal DTR mode if we enabled it. */ + ret = spi_nor_octal_dtr_enable(nor, false); + if (ret) { + dev_err(dev, "suspend() failed\n"); + return ret; + } + + return 0; +} + /* mtd resume handler */ static void spi_nor_resume(struct mtd_info *mtd) { @@ -5564,6 +5581,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, mtd->size = params->size; mtd->_erase = spi_nor_erase; mtd->_read = spi_nor_read; + mtd->_suspend = spi_nor_suspend; mtd->_resume = spi_nor_resume; if (nor->params.locking_ops) {