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GET /api/patches/2219645/?format=api
{ "id": 2219645, "url": "http://patchwork.ozlabs.org/api/patches/2219645/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/patch/20260403-winbond-v6-18-rc1-spi-nor-swp-v4-23-833dab5e7288@bootlin.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": "<20260403-winbond-v6-18-rc1-spi-nor-swp-v4-23-833dab5e7288@bootlin.com>", "list_archive_url": null, "date": "2026-04-03T16:09:41", "name": "[v4,23/27] mtd: spi-nor: winbond: Add W25H01NWxxAM CMP locking support", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "e6c643e284ff9cf48697bf1e09eb873818e7f281", "submitter": { "id": 73368, "url": "http://patchwork.ozlabs.org/api/people/73368/?format=api", "name": "Miquel Raynal", "email": "miquel.raynal@bootlin.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-mtd/patch/20260403-winbond-v6-18-rc1-spi-nor-swp-v4-23-833dab5e7288@bootlin.com/mbox/", "series": [ { "id": 498652, "url": "http://patchwork.ozlabs.org/api/series/498652/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/list/?series=498652", "date": "2026-04-03T16:09:18", "name": "mtd: spi-nor: Enhance software protection", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/498652/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2219645/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2219645/checks/", "tags": {}, "related": [], "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=2yU7NTgu;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256\n header.s=casper.20170209 header.b=OV7HG/cv;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256\n header.s=dkim header.b=tbAxAZ/V;\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; 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a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id\n\t:MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=47ZXpCf7/2hKjAupRAaKLbgmB7lzZS9NGhuLUWtJJnQ=; b=2yU7NTguh6Q5aU\n\tPgF6NSLq7GjilI5n6dxkSIA4Lu79tdnqzdfKDt/9zVuX47rT1vc62gDDTyAA49IyGnx4pC7ar3T69\n\tpcG0gVFLVjG6FLlRO/WmgyslexcM/WyEe5cnqA9Of/Dvuf1E501WCUc/LiUxwE1TIiQsT5qbBhzmD\n\tmSLTgNXiFAJuxCMYsOFo8/6UnhizFS2+iLUjCHn868wdy2Zx47tf1j6s8Fi7cau6B5O5VYwa71eRc\n\txz3fAukh+JmeW3S2nN6RLifCOdkJRanWOYBFIMGqNhVLcSzfXz5T8lAZNtlesi2VaHz1lWFqZ7JaX\n\toONG3dp7NebZI8RDdrLQ==;", "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=infradead.org; s=casper.20170209; h=Cc:To:In-Reply-To:References:Message-Id\n\t:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date:From:Sender\n\t:Reply-To:Content-ID:Content-Description;\n\tbh=yhH+eLu6fxqdAQZiuioR7i/D/pMDWxpaQ3+CJS2/QWU=; b=OV7HG/cvHwPdwKgYDF9dbEjKIH\n\txpCEOiV4p4Zn9/hLkzdAPUCsnt1L8ohv3R8NeTWkkiY2nbG9gLKJHGXjkUI+UVpv27vHOyvOa22tV\n\tFBiyIDYn7oe7Xj/2IG4Fqj3XANAujlfAfRGdM1mdaEcmJIaa+vGwLaM16/qS/tUh5K63B8VAYBGt+\n\thVAG69BAyJT7Bp9RdLB51sP+s8BlOL5kWkwH2m8/FzBT+/IZ2k9yaCYb+bl0M+7AqLaHdYsNUf/wj\n\tJOTpZosEyPtiZ3JWFDX5irmcz7VDlhkYqAEVEdJO965kFKAYJFy2QQHLBg9jqFEW0/HmMS7d8LQMZ\n\tua/qFxRA==;", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n\tt=1775232630; h=from:subject:date:message-id:to:cc:mime-version:content-type:\n\t content-transfer-encoding:in-reply-to:references;\n\tbh=yhH+eLu6fxqdAQZiuioR7i/D/pMDWxpaQ3+CJS2/QWU=;\n\tb=tbAxAZ/VAzy8IwFmhTTzqwRSl+g4GlfVzdSfv9xI4hU/wuFm+qnHf9r0c4JtQ6LGOI8PJ2\n\tozPkom7cEawzaD6No7+oJIrw7qdZOKJW5jSPg9tAn0ayc/Ra/1M0JjFqPwTFlAfROKUkzD\n\tOx2BeqJIbdqoJB1WBWvdxc5YwUxzYVIikyRLMvmi9D19ZeGlUM8KYad7yI7J3CZIf8xPfp\n\t2G+z0834XE4cu8O0fjPqcVkooIzEv/TjdzzkgE6Su4Ntfnf1O+DDB+mHq5agNT4gG+IqvI\n\tGxe9XIWC/16RnoN+X+wYuWQy1eR8rg6P02229wTzjVofkrvUmi6CzK4ZqTpi3w==" ], "From": "Miquel Raynal <miquel.raynal@bootlin.com>", "Date": "Fri, 03 Apr 2026 18:09:41 +0200", "Subject": "[PATCH v4 23/27] mtd: spi-nor: winbond: Add W25H01NWxxAM CMP\n locking support", "MIME-Version": "1.0", "Message-Id": "\n <20260403-winbond-v6-18-rc1-spi-nor-swp-v4-23-833dab5e7288@bootlin.com>", "References": "\n <20260403-winbond-v6-18-rc1-spi-nor-swp-v4-0-833dab5e7288@bootlin.com>", "In-Reply-To": "\n <20260403-winbond-v6-18-rc1-spi-nor-swp-v4-0-833dab5e7288@bootlin.com>", "To": "Pratyush Yadav <pratyush@kernel.org>, Michael Walle <mwalle@kernel.org>,\n Takahiro Kuwano <takahiro.kuwano@infineon.com>,\n Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>,\n Jonathan Corbet <corbet@lwn.net>", "Cc": "Sean Anderson <sean.anderson@linux.dev>,\n Thomas Petazzoni <thomas.petazzoni@bootlin.com>,\n Steam Lin <STLin2@winbond.com>, linux-mtd@lists.infradead.org,\n linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,\n Miquel Raynal <miquel.raynal@bootlin.com>", "X-Mailer": "b4 0.14.3", "X-Last-TLS-Session-Version": "TLSv1.3", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20260403_171033_047390_6A2F4727 ", "X-CRM114-Status": "GOOD ( 10.87 )", "X-Spam-Score": "-2.1 (--)", "X-Spam-Report": "SpamAssassin version 4.0.1 on casper.infradead.org summary:\n Content analysis details: (-2.1 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n 0.0 RCVD_IN_VALIDITY_RPBL_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [185.246.84.56 listed in\n bl.score.senderscore.com]\n 0.0 RCVD_IN_VALIDITY_CERTIFIED_BLOCKED RBL: ADMINISTRATOR NOTICE: The\n query to Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [185.246.84.56 listed in\n sa-trusted.bondedsender.org]\n 0.0 RCVD_IN_VALIDITY_SAFE_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [185.246.84.56 listed in sa-accredit.habeas.com]\n -0.0 SPF_HELO_PASS SPF: HELO matches SPF record\n -0.0 SPF_PASS SPF: sender matches SPF record\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]", "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": "This chip has support for the locking complement (CMP) feature. Add\nthe relevant bit to enable it.\n\nSigned-off-by: Miquel Raynal <miquel.raynal@bootlin.com>\n---\nTest run with W25H01NWxxAM:\n$ flash_lock -u /dev/mtd0\n$ flash_lock -l /dev/mtd0 $bs $all_but_one # all but the first\n$ show_sectors\nlocked sectors\n region (in hex) | status | #blocks\n ------------------+----------+--------\n 00000000-0000ffff | unlocked | 1\n 00010000-07ffffff | locked | 2047\n$ flash_lock -u /dev/mtd0 $bs 1 # all but the two first\n$ show_sectors\nlocked sectors\n region (in hex) | status | #blocks\n ------------------+----------+--------\n 00000000-0001ffff | unlocked | 2\n 00020000-07ffffff | locked | 2046\n$ flash_lock -u /dev/mtd0\n$ flash_lock -l /dev/mtd0 0 $all_but_one # same from the other side\n$ show_sectors\nlocked sectors\n region (in hex) | status | #blocks\n ------------------+----------+--------\n 00000000-07feffff | locked | 2047\n 07ff0000-07ffffff | unlocked | 1\n$ flash_lock -u /dev/mtd0 $(($size - (2 * $bs))) 1 # all but two\n$ show_sectors\nlocked sectors\n region (in hex) | status | #blocks\n ------------------+----------+--------\n 00000000-07fdffff | locked | 2046\n 07fe0000-07ffffff | unlocked | 2\n---\n drivers/mtd/spi-nor/winbond.c | 3 ++-\n 1 file changed, 2 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c\nindex 7609dcc768f0..1b9b0e9598ef 100644\n--- a/drivers/mtd/spi-nor/winbond.c\n+++ b/drivers/mtd/spi-nor/winbond.c\n@@ -363,7 +363,8 @@ static const struct flash_info winbond_nor_parts[] = {\n \t}, {\n \t\t/* W25H01NWxxAM */\n \t\t.id = SNOR_ID(0xef, 0xa0, 0x21),\n-\t\t.flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP,\n+\t\t.flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 |\n+\t\t\t SPI_NOR_4BIT_BP | SPI_NOR_HAS_CMP,\n \t}, {\n \t\t/* W25H02NWxxAM */\n \t\t.id = SNOR_ID(0xef, 0xa0, 0x22),\n", "prefixes": [ "v4", "23/27" ] }