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=-13.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 C7BD2C46466 for ; Mon, 5 Oct 2020 15:36:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8500B2075A for ; Mon, 5 Oct 2020 15:36:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="bCRzHoPD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728470AbgJEPgv (ORCPT ); Mon, 5 Oct 2020 11:36:51 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:60040 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728022AbgJEPca (ORCPT ); Mon, 5 Oct 2020 11:32:30 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 095FWM82088903; Mon, 5 Oct 2020 10:32:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1601911942; bh=kTpk8O1/zy2DFUVfGThRxjfsfh4wUl5GEhOOnPagMLQ=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=bCRzHoPDO6ITaLPjjSh8dlZpApqdlB4L2/ej9qa9WW36JaHx8+cN4Nk+4ghA3mRdk 2dbzhOBII+mbQMadjIVkwFXXr2rByteru5kt01oLg6MPZS5XltAAvqQfI6SQ5LqmMC UTrnFyypE20w1Qq0w6D/w57WrTkHkrrmdf+WCcT0= Received: from DFLE109.ent.ti.com (dfle109.ent.ti.com [10.64.6.30]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 095FWMli010230 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 5 Oct 2020 10:32:22 -0500 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Mon, 5 Oct 2020 10:32:22 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Mon, 5 Oct 2020 10:32:22 -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 095FVdlt052390; Mon, 5 Oct 2020 10:32:19 -0500 From: Pratyush Yadav To: Tudor Ambarus , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , , CC: Pratyush Yadav , Sekhar Nori , Boris Brezillon Subject: [PATCH v16 13/15] mtd: spi-nor: core: disable Octal DTR mode on suspend. Date: Mon, 5 Oct 2020 21:01:36 +0530 Message-ID: <20201005153138.6437-14-p.yadav@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201005153138.6437-1-p.yadav@ti.com> References: <20201005153138.6437-1-p.yadav@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On resume, the init procedure will be run that will re-enable it. Signed-off-by: Pratyush Yadav Reviewed-by: Tudor Ambarus --- drivers/mtd/spi-nor/core.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index feb4310ff6dc..ff592468cc15 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -3217,6 +3217,20 @@ 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); + int ret; + + /* Disable octal DTR mode if we enabled it. */ + ret = spi_nor_octal_dtr_enable(nor, false); + if (ret) + dev_err(nor->dev, "suspend() failed\n"); + + return ret; +} + /* mtd resume handler */ static void spi_nor_resume(struct mtd_info *mtd) { @@ -3420,6 +3434,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, mtd->size = nor->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) { -- 2.28.0