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GET /api/1.0/patches/2219648/?format=api
{ "id": 2219648, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2219648/?format=api", "project": { "id": 3, "url": "http://patchwork.ozlabs.org/api/1.0/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 }, "msgid": "<20260403-winbond-v6-18-rc1-spi-nor-swp-v4-22-833dab5e7288@bootlin.com>", "date": "2026-04-03T16:09:40", "name": "[v4,22/27] mtd: spi-nor: winbond: Add W25H512NWxxAM CMP locking support", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "f17c2dc03c2d198047326cc1e8a55c4e4d8838f8", "submitter": { "id": 73368, "url": "http://patchwork.ozlabs.org/api/1.0/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-v4-22-833dab5e7288@bootlin.com/mbox/", "series": [ { "id": 498652, "url": "http://patchwork.ozlabs.org/api/1.0/series/498652/?format=api", "date": "2026-04-03T16:09:18", "name": "mtd: spi-nor: Enhance software protection", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/498652/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2219648/checks/", "tags": {}, "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=aJYQh37V;\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=Vdr5oWDY;\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=Wo7SWq1gzczJwdjFn8TgwhmBSRsVsTNCahyccMysM10=; b=aJYQh37VLx9+y9\n\tYuqhaClhLg16WWTJN/382729otJbrPWwDSOKwcVfct+pbdw//R9eXn7xxQBhoNZKq6qreCcFlO8Ry\n\t+vEWmV8qFq8L6LwWV4iBMvf4/hrFCMLr5FezMol+U//Kt5Cno4cvy14ADdrlCPVthI/7+jHOrrSzw\n\tQNQ/O1Df4bIIqlTKXH3GU1DgYYsEWv/FDkXhnNVBGRnnHEMWA2ew9TqX7KTaqGMpw/0GRGLyNJj5h\n\tyOeI65N1fRE3TWFe9s6ZnmnKJiUqUFfizICqYlHEkdy2OjvjHGlCc4fU2ABOecVGaRcg40ANRfY1b\n\tsBmKDIZy5VNVsGD6BRQw==;", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n\tt=1775232628; h=from:subject:date:message-id:to:cc:mime-version:content-type:\n\t content-transfer-encoding:in-reply-to:references;\n\tbh=o3gJUgDW9H+8FokaFsD1jp2lD0qzceXQjBYL+wiCljw=;\n\tb=Vdr5oWDY7qm5YRAhfp9Z4Ia8tLdvlHkHrDK9fHlNUEZoNdgKWCBF5258VfkX+seO3KiFnR\n\tO+bufpYOM9TyEYBqKk/NI7SNtFgpifrGk1RRlY0dvCi5KDxNECQNioCdO+mj+KBJwWC6Lw\n\tLY2PF6kn61NpZByQ2uZcSm+Mu7ku4Sw591l4nQiw5yfZGFzC2cKQc6MKgTna385pw4AIPH\n\tlMCTw3zdhwbLJhct+6iAGUakxx/sRHhY+FHMVsi91ckZpCB04bqfjDHeu7oi25N4MKbsvx\n\tlIwP8UnbJLCLqPxiKVEadfHUg0QsLTWBN16WMEO2J5MvN/qefoBlo++BphO+eg==" ], "From": "Miquel Raynal <miquel.raynal@bootlin.com>", "Date": "Fri, 03 Apr 2026 18:09:40 +0200", "Subject": "[PATCH v4 22/27] mtd: spi-nor: winbond: Add W25H512NWxxAM CMP\n locking support", "MIME-Version": "1.0", "Message-Id": "\n <20260403-winbond-v6-18-rc1-spi-nor-swp-v4-22-833dab5e7288@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_091031_558606_99A54A71 ", "X-CRM114-Status": "GOOD ( 10.80 )", "X-Spam-Score": "-2.1 (--)", "X-Spam-Report": "Spam detection software,\n running on the system \"bombadil.infradead.org\",\n has NOT identified this incoming email as spam. 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: This chip has support for the locking complement (CMP)\n feature.\n Add the relevant bit to enable it. Signed-off-by: Miquel Raynal\n <miquel.raynal@bootlin.com>\n --- Test run following the freshly written documentation:\n Content analysis details: (-2.1 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\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 [185.246.85.4 listed in sa-accredit.habeas.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 [185.246.85.4 listed in\n sa-trusted.bondedsender.org]\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_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 -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\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 [185.246.85.4 listed in bl.score.senderscore.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": "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 following the freshly written documentation:\n\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 00010000-03ffffff | locked | 1023\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 00020000-03ffffff | locked | 1022\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 00000000-03feffff | locked | 1023\n 03ff0000-03ffffff | 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 00000000-03fdffff | locked | 1022\n 03fe0000-03ffffff | 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 fb855fe44733..7609dcc768f0 100644\n--- a/drivers/mtd/spi-nor/winbond.c\n+++ b/drivers/mtd/spi-nor/winbond.c\n@@ -358,7 +358,8 @@ static const struct flash_info winbond_nor_parts[] = {\n \t}, {\n \t\t/* W25H512NWxxAM */\n \t\t.id = SNOR_ID(0xef, 0xa0, 0x20),\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/* W25H01NWxxAM */\n \t\t.id = SNOR_ID(0xef, 0xa0, 0x21),\n", "prefixes": [ "v4", "22/27" ] }