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dkim=none (message not signed) header.d=none;pengutronix.de; dmarc=none action=none header.from=ni.com; Received: from SN4PR0401MB3646.namprd04.prod.outlook.com (2603:10b6:803:4b::29) by SN6PR04MB4125.namprd04.prod.outlook.com (2603:10b6:805:2e::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3589.28; Tue, 24 Nov 2020 20:43:50 +0000 Received: from SN4PR0401MB3646.namprd04.prod.outlook.com ([fe80::9060:4872:8d22:a3b1]) by SN4PR0401MB3646.namprd04.prod.outlook.com ([fe80::9060:4872:8d22:a3b1%7]) with mapi id 15.20.3589.030; Tue, 24 Nov 2020 20:43:50 +0000 Date: Tue, 24 Nov 2020 14:35:00 -0600 From: Michael Auchter To: Marco Felsch Cc: tudor.ambarus@microchip.com, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, sergei.shtylyov@cogentembedded.com, boris.brezillon@collabora.com, michael@walle.cc, j.neuschaefer@gmx.net, linux-mtd@lists.infradead.org, kernel@pengutronix.de, linux-kernel@vger.kernel.org, joerg.hofrichter@ni.com Message-ID: <20201124203500.GA487864@xaphan> References: <20200911144703.25409-1-m.felsch@pengutronix.de> Content-Type: text/plain; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?8SWIm/sqlStANG4K9ubdfreGTocjKyB4A+RqLpo0Yg35ZOVCH9Vi/Z9TILi7?= =?us-ascii?Q?ijril+Uv/pgZHa3tLCyYi9I0ZDL49dkIenXUYHAzEX6jFq8wEmg9jx33ALec?= =?us-ascii?Q?PARfwZCW4SZg9xk137ohvu4dB7kS+xjjLBbenxSVK183EseIMFAjc4f2JrwP?= =?us-ascii?Q?F8voIlRhM0M6HbnXvmZ+uf8ufe6yneXlvHZz8T4YPlO5JZjwdZIOV8gjAShx?= =?us-ascii?Q?L3Ogifk/kF5/IUO6LevI6rbM9ckpOL+WSreWANQZuHTj+ppvIVZ7NmXMflgd?= =?us-ascii?Q?VMdtBwUGs8XbKKK15PABOB4ZglIkg2BXXLart4DnVjlOF4Iu/cCOsDeHwlam?= =?us-ascii?Q?X3SbvZBz0lpTtGA4msEd5IcPziU5rWl5ckpakr4j/ejDACekJdidd6Yhkx2y?= =?us-ascii?Q?NjGEd5vajbqO7I1oZVWbes7/P1FT2L8lteYGVADobKTYCOp7n0lBf7087lZl?= =?us-ascii?Q?RP/3ZqA8NBd/fmHUf6v+mbwxwNJNY0c2dodlC0yEUpdrVqacHcZ95jlBusok?= =?us-ascii?Q?Vq94GWP+6PcccF/eeKOUK3kZLpv+bh2DYW/D2qsuRY3l9VGMdulG+XJOXBLv?= =?us-ascii?Q?akiXJrQe9pXF5TeTYJW7D3Fchu6D8ovI2UlaHZM/md5KEK+yeLzkSBwMWAfK?= =?us-ascii?Q?SJFXbTfO8f35AQTZ4wh29uiJIghQsmKkx3cQahtMwLieheoCykhcmrs62Aez?= =?us-ascii?Q?DGL9MAxcgq/IEbY/xVgGB0arkMeDajFRL0vYPPxod/bFsC5YasJMJZR3wlNm?= =?us-ascii?Q?qU5TfdEC5+3zmphRW1oMdByU1C/wuLkLsCqwwjmxmyl4SbFwCYVRTfZG2wRm?= =?us-ascii?Q?ikuXcDfmL145pN27OXbUs9TKxHZoO/iaxf6I6f4PzWdNg76Pmm6Ks8j5bAZt?= =?us-ascii?Q?OC5C2caRsnFxGWPJlOvISI98MgbHM1oz+sAXo9UBPq47NQuaWIdx50MnT3dx?= =?us-ascii?Q?aY6qu+63dCu+4cBEh8RCa7pj1jsEKf/ANru5NJmvw/A=3D?= X-OriginatorOrg: ni.com X-MS-Exchange-CrossTenant-Network-Message-Id: b199e490-ef69-4ac2-aa96-08d890b9a605 X-MS-Exchange-CrossTenant-AuthSource: SN4PR0401MB3646.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Nov 2020 20:43:50.6281 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 87ba1f9a-44cd-43a6-b008-6fdb45a5204e X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: I7zVHRTopgSWs184TzlG/kqoTWD5US6mmlYODnkPTVhoFNwyd1QL60nDMRo8EufHlbBAnwGIZCayyhVywYnOZA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR04MB4125 Subject: Re: [PATCH 0/3] MTD: SST SPI-NOR fixes X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737 definitions=2020-11-24_07:2020-11-24,2020-11-24 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_policy_notspam policy=outbound_policy score=30 adultscore=0 phishscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1011 mlxlogscore=999 bulkscore=0 mlxscore=0 malwarescore=0 suspectscore=1 priorityscore=1501 classifier=spam adjust=30 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011240123 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Marco, On Fri, Sep 11, 2020 at 04:47:00PM +0200, Marco Felsch wrote: > Hi, > > Patch 1-2: write path fixes > The sst write path is completely broken since v5.7-rc1 and in rare cases > since the support of the sst_write() function (49aac4aec53c). > > Patch 3: cleanup > > I've tested my patches with a small test app to ensure writes starting > on an odd address and with dd to test even start addresses. My dut was > an public available imx6q-sabrelite (rev.D). > Other testers are welcome :) > > Regards, > Marco > > Marco Felsch (3): > mtd: spi-nor: sst: fix write support for SST_WRITE marked devices > mtd: spi-nor: sst: add missing write_enable > mtd: spi-nor: sst: move sst_write_second to local driver > > drivers/mtd/spi-nor/core.c | 15 +++++++++------ > drivers/mtd/spi-nor/sst.c | 15 +++++++++++---- > include/linux/mtd/spi-nor.h | 2 -- > 3 files changed, 20 insertions(+), 12 deletions(-) > > -- > 2.20.1 My colleague, Joerg, has validated that these patches fix an issue we saw where performing multi-byte writes to a SST25VF016B would fail. Tested-by: Joerg Hofrichter Thanks, Michael