Received: by 2002:a05:6358:e9c4:b0:b2:91dc:71ab with SMTP id hc4csp6895148rwb; Wed, 10 Aug 2022 03:08:24 -0700 (PDT) X-Google-Smtp-Source: AA6agR45ULnwPxrNqdsbCPugfNMGUj+Pl9IRQInF8mhYMYwBltcNExJbTzu4H5WZ5P8ez5CUIVsb X-Received: by 2002:a17:906:93e8:b0:730:9e5c:b45a with SMTP id yl8-20020a17090693e800b007309e5cb45amr18900801ejb.530.1660126103995; Wed, 10 Aug 2022 03:08:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1660126103; cv=none; d=google.com; s=arc-20160816; b=wZEvyFeWeeGqc2aCJx/9YnWKvf9MGdaSjrJFkuWUB4FZBXQ35wu+J88zbOKhhAjhUM pEStw0qtlHXPRURtotmhsun/O7y31OakgPrMpO14L1p3fbKOwAkLbAOGrOdupTfylxbp 1Aynrzf+sX/F/x98f5e+PCT9DpIWQk8DSJJ4+MpJfZnymIJ8TwUCFAb1C8YPyedD8EMg 0mVq1/7aoy/y4FlfFj8CKJhef/GdrcUknCRYLIyhVk3VFfgMoIjktXGT2C5ddV5/k1mX L/1dG9BcAbzNRNTABlFAT433J2e1Y3lZedyaOzvEWyK+vg3Mro20dFhGlTovyL5CQsLt qiwQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=JGY5zWrfCCK8U/3zgAroqF0FgJuxZGbZAnLQqoBRrso=; b=RmtKw0LgHYgnzYxB1ZPNm/Zmzkwxapw5kUwqeSjdpRSvCYICOu0l63RcC4ns6ATWzW WMylSMGLh/r/JqAv1YGKMDM0bt8nyAnMIiOGBG69Yy8w107vobiY8kHI5VzpFaqj65oV rcx4q5J10BMiPzgXI+phPrOfxFFLNucOkFkLenNw6hZV11o3JJ22R2lsR81L+5GOVi04 I+oqkzFW27klvq8HT/X4Zopzm9f4gb8VdDVJqeN6UmwHvybpVZktu87t5FoU7Khzm83H SgVAYrLca1VMI3JE/HYpI+1S/dIKU5/VZgQ5WIBQgDq1G7rwjILlmetcRn9hipgci20L fm5A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@foss.st.com header.s=selector1 header.b=0j8S3SNq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=foss.st.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id dz16-20020a0564021d5000b004407104243csi11195220edb.153.2022.08.10.03.07.58; Wed, 10 Aug 2022 03:08:23 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@foss.st.com header.s=selector1 header.b=0j8S3SNq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=foss.st.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232130AbiHJJcu (ORCPT + 99 others); Wed, 10 Aug 2022 05:32:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232120AbiHJJcq (ORCPT ); Wed, 10 Aug 2022 05:32:46 -0400 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF2C16DF89; Wed, 10 Aug 2022 02:32:44 -0700 (PDT) Received: from pps.filterd (m0288072.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 27A68jdC004798; Wed, 10 Aug 2022 11:32:21 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=selector1; bh=JGY5zWrfCCK8U/3zgAroqF0FgJuxZGbZAnLQqoBRrso=; b=0j8S3SNqXOkek34mkUPW7uFbheMJ/q/UayZS01EQTvKX2ZCKctNple+tOvUt6NQ3XLgy iflhYECKtF1WaeZkpZa7A2PzvLnKvBSfKcYcnyoPUHeMxaIH0o2ttriPdHBOZojroaeW +R930MK1dlNNsgsbpbrJDhrc1c9ERT7wW1bTVTYSFBvAErdiYoWKTFnv13DItzFUo7ht VOczuZv9+G37EtoMeFnkwukUOC1VQnpWfnrjx2iCkeFgDx/9gbflsMtE/l0ko4Q/eTN2 Uids09E37dl1rnUjsntBDXd0iw5cv5S/k0aSaZ9l+vVfDaUgshaxn/rocxeYTc9OPDud AQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3huwpmbmm8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 Aug 2022 11:32:21 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id E49A110002A; Wed, 10 Aug 2022 11:32:20 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id CF39421B52F; Wed, 10 Aug 2022 11:32:20 +0200 (CEST) Received: from localhost (10.75.127.46) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Wed, 10 Aug 2022 11:32:20 +0200 From: To: Mark Brown , Alexandre Torgue , , CC: , , , , , , Subject: [PATCH v2 0/2] spi: stm32_qspi: use QSPI bus as 8 lines communication channel Date: Wed, 10 Aug 2022 11:32:13 +0200 Message-ID: <20220810093215.794977-1-patrice.chotard@foss.st.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-10_03,2022-08-09_02,2022-06-22_01 X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Patrice Chotard The goal of this series is to allow to use QSPI bus as a 8 lines communication channel for specific purpose. The QSPI block offers the possibility to communicate with 2 flashes in parrallel using the dual flash mode, 8 data lines are then used. Usage of DT parallel-memories property is needed to enable dual flash mode. The addition of the legacy transfer_one_message() spi callback is also needed as currently the stm32-qspi driver only supports spi_controller_mem_ops API. arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 50 +++++++---- arch/arm/boot/dts/stm32mp157c-ev1.dts | 12 ++- drivers/spi/spi-stm32-qspi.c | 103 +++++++++++++++++++++-- 3 files changed, 139 insertions(+), 26 deletions(-) -- 2.25.1