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{ "id": 2226061, "url": "http://patchwork.ozlabs.org/api/covers/2226061/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/cover/20260422070203.698716-1-linchengming884@gmail.com/", "project": { "id": 3, "url": "http://patchwork.ozlabs.org/api/projects/3/?format=api", "name": "Linux MTD development", "link_name": "linux-mtd", "list_id": "linux-mtd.lists.infradead.org", "list_email": "linux-mtd@lists.infradead.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260422070203.698716-1-linchengming884@gmail.com>", "list_archive_url": null, "date": "2026-04-22T07:02:00", "name": "[v9,0/3] mtd: spi-nand: Add support for randomizer feature", "submitter": { "id": 88631, "url": "http://patchwork.ozlabs.org/api/people/88631/?format=api", "name": "Cheng Ming Lin", "email": "linchengming884@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-mtd/cover/20260422070203.698716-1-linchengming884@gmail.com/mbox/", "series": [ { "id": 500931, "url": "http://patchwork.ozlabs.org/api/series/500931/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/list/?series=500931", "date": "2026-04-22T07:02:00", "name": "mtd: spi-nand: Add support for randomizer feature", "version": 9, "mbox": "http://patchwork.ozlabs.org/series/500931/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2226061/comments/", "headers": { "Return-Path": "\n <linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=yliDpWBw;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=qh762Jtu;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org;\n envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n [IPv6:2607:7c80:54:3::133])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g0qvP5Xr1z1yD5\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 22 Apr 2026 17:03:45 +1000 (AEST)", "from localhost ([::1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1wFRcX-00000009hDy-2bWx;\n\tWed, 22 Apr 2026 07:03:37 +0000", "from mail-pj1-x1030.google.com ([2607:f8b0:4864:20::1030])\n\tby bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1wFRcV-00000009hCa-0fxT\n\tfor linux-mtd@lists.infradead.org;\n\tWed, 22 Apr 2026 07:03:36 +0000", "by mail-pj1-x1030.google.com with SMTP id\n 98e67ed59e1d1-35d9f68d011so3347185a91.2\n for <linux-mtd@lists.infradead.org>;\n Wed, 22 Apr 2026 00:03:34 -0700 (PDT)", "from twhmp6px (mxsmtp211.mxic.com.tw. 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The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: From: Cheng Ming Lin This patch series introduces\n randomizer\n support for SPI NAND devices. - Patch 1: add the nand-randomizer property\n to the generic nand-chip.yaml bindings. Instead of using boolean\n properties,\n it introduces a uint32 enum (0 or 1). If the property is omitted,\n the driver\n wi [...]\n Content analysis details: (-1.8 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no\n trust\n [2607:f8b0:4864:20:0:0:0:1030 listed in]\n [list.dnswl.org]\n -0.0 SPF_PASS SPF: sender matches SPF record\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\n 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail\n provider\n [linchengming884(at)gmail.com]\n 0.2 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in\n digit\n [linchengming884(at)gmail.com]", "X-BeenThere": "linux-mtd@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "Linux MTD discussion mailing list <linux-mtd.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/linux-mtd>,\n <mailto:linux-mtd-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/linux-mtd/>", "List-Post": "<mailto:linux-mtd@lists.infradead.org>", "List-Help": "<mailto:linux-mtd-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/linux-mtd>,\n <mailto:linux-mtd-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"linux-mtd\" <linux-mtd-bounces@lists.infradead.org>", "Errors-To": "linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "From: Cheng Ming Lin <chengminglin@mxic.com.tw>\n\nThis patch series introduces randomizer support for SPI NAND devices.\n\n- Patch 1: add the nand-randomizer property to the generic nand-chip.yaml\n bindings. Instead of using boolean properties, it introduces a\n uint32 enum (0 or 1). If the property is omitted, the driver\n will not interfere and will leave the randomizer in its current\n state.\n- Patch 2: add the initialization logic and the set_randomizer callback\n to the core framework. The core will now parse the device tree\n properties and enable or disable the randomizer accordingly\n during spinand_init.\n- Patch 3: implement the set_randomizer callback specifically for Macronix\n chips (MX35LF/UF series) to handle the vendor-specific register\n operations.\n\nv9:\n* Replaced 'nand-enable-randomizer'/'nand-disable-randomizer'\n boolean properties with a single 'nand-randomizer' uint32 enum.\n* Switched to use of_property_read_u32() to align with the new\n binding.\n\nv8:\n* dt-bindings: spi-nand: macronix: Remove the chip-specific Application\n Note link from the commit message to keep the binding generic.\n* mtd: spi-nand: macronix: Update the broken Application Note link and\n move it here from the dt-binding patch per Miquel's suggestion.\n\nv7:\n* Directly return the result in macronix_set_randomizer()\n\nv6:\n* Added mutual-exclusive constraints using not with required for\n nand-randomizer-enable and nand-randomizer-disable properties based\n on Krzysztof's feedback.\n* Simplified the return path in macronix_set_randomizer() to directly\n return ret; and dropped unrelated formatting changes.\n\nv5:\n* Promoted the randomizer configuration to use generic NAND properties\n (nand-randomizer-enable and nand-randomizer-disable) instead of\n vendor-specific bindings.\n* Refactored the initialization architecture in core.c. The core framework\n is now responsible for parsing the device tree properties and deciding\n whether to enable or disable the randomizer.\n\nv4:\n* Fix a build error in spinand_randomizer_init() where a value was\n returned from a void function. (Reported by kernel test robot)\n* Update the return type to int.\n\nv3:\n* Revert the device tree property to the vendor-specific\n \"mxic,randomizer-enable\" to strictly follow vendor-specific bindings.\n\n* Update the 'set_randomizer' callback signature to accept a boolean\n 'enable' argument, allowing the feature to be explicitly enabled or\n disabled.\n\n* Switch the implementation to use the standard SET_FEATURE command\n to modify the Configuration Register (0x10), replacing the previous\n special program command method.\n\nv2:\n* Create a global NAND DT property\n\nCheng Ming Lin (3):\n dt-bindings: mtd: nand: Add nand-randomizer property\n mtd: spi-nand: Add support for randomizer\n mtd: spi-nand: macronix: Enable randomizer support\n\n .../devicetree/bindings/mtd/nand-chip.yaml | 9 +++++\n drivers/mtd/nand/spi/core.c | 20 ++++++++++\n drivers/mtd/nand/spi/macronix.c | 38 ++++++++++++++-----\n include/linux/mtd/spinand.h | 9 +++++\n 4 files changed, 66 insertions(+), 10 deletions(-)" }