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GET /api/patches/2216511/?format=api
{ "id": 2216511, "url": "http://patchwork.ozlabs.org/api/patches/2216511/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/patch/20260326-winbond-v6-18-rc1-cont-read-v2-10-643de97a68a3@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": "<20260326-winbond-v6-18-rc1-cont-read-v2-10-643de97a68a3@bootlin.com>", "list_archive_url": null, "date": "2026-03-26T16:25:57", "name": "[v2,10/11] mtd: spinand: winbond: Create a helper to detect the need for the HS bit", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "ec8263fbf6e4bc5d164f585d63d120ea855abd2f", "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/20260326-winbond-v6-18-rc1-cont-read-v2-10-643de97a68a3@bootlin.com/mbox/", "series": [ { "id": 497619, "url": "http://patchwork.ozlabs.org/api/series/497619/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/list/?series=497619", "date": "2026-03-26T16:25:47", "name": "[v2,01/11] mtd: spinand: Drop a too strong limitation", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/497619/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216511/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216511/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=r6mcqvqk;\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=yNpQjZDO;\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=17NQDq/FTLpIyIUGLdF1dpcoac1lbAgNEyUWsvHnX24=; b=r6mcqvqkiWU7LW\n\t9iYj1W1+eZ+9iDYWALZpILYK8ebTQNCxEg02sV/RxwRMh9tkNBE7NxlL+/eMRKVKnUfx8HaIiiw1Q\n\tVk7nDj0mKNhxaQQ+H/A/WgcUGV8ueR+84B1rVee2BKZVPMLcZXhjp0gcDy+gdKb4C0QfO5xjxJiwH\n\tv1XZy1fK1rzFGZ5uUg84UnYv0lS1EYo8m6e/1z2cm2/vC0Psd5Oov3qAZu+U8kfmlaZ95UT8CnDZi\n\tjLHA0TyZLDzu/gvoXocZQD8rU/FHApQ0JAnQaqy87+W8CIQWU1R0spqRrFU1wxbZU3cNhdjsehBv2\n\tmrEPAtGpxRQN1VDYRGFQ==;", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n\tt=1774542379; h=from:subject:date:message-id:to:cc:mime-version:content-type:\n\t content-transfer-encoding:in-reply-to:references;\n\tbh=yGIuJpVwWLTfF36jwuLLhNiOA2wGXHIPXa0FAwaadKw=;\n\tb=yNpQjZDO1vFDiEPq3WhKYtssiq5FUYuxDMYyFlOkvjHTEEr3eVYwlFgQA90asN7MzpS7ca\n\tI5qTCr1d0YD3DYmEEwPlxlGLHD5VsZtRDQDTKux8LYVzlsWphM0i9LNe29B6b5uMg5JWsR\n\t6KUdnok2MS3Wgn5VQ/8QnHvKQOMxkldRFDEtXvT9oWIhMoNg7Q2C/ZLsVjBuGPhFFzruO5\n\twmEsxdINcjKnYZn5OfppjKkMJOazVlL0JdNWnyH0en46LdnbDOi5fPqZr6SEG7mDwM1paf\n\tZ7Vcei3R36l7OzdWj8HVRVg+5DipF009szLRf9L2V+nXIT/Jaj3FhAYbxFU/5A==" ], "From": "Miquel Raynal <miquel.raynal@bootlin.com>", "Date": "Thu, 26 Mar 2026 17:25:57 +0100", "Subject": "[PATCH v2 10/11] mtd: spinand: winbond: Create a helper to detect\n the need for the HS bit", "MIME-Version": "1.0", "Message-Id": "\n <20260326-winbond-v6-18-rc1-cont-read-v2-10-643de97a68a3@bootlin.com>", "References": "\n <20260326-winbond-v6-18-rc1-cont-read-v2-0-643de97a68a3@bootlin.com>", "In-Reply-To": "\n <20260326-winbond-v6-18-rc1-cont-read-v2-0-643de97a68a3@bootlin.com>", "To": "Mark Brown <broonie@kernel.org>, Richard Weinberger <richard@nod.at>,\n Vignesh Raghavendra <vigneshr@ti.com>, Michael Walle <mwalle@kernel.org>,\n Miquel Raynal <miquel.raynal@bootlin.com>", "Cc": "Pratyush Yadav <pratyush@kernel.org>,\n Thomas Petazzoni <thomas.petazzoni@bootlin.com>,\n Steam Lin <STLin2@winbond.com>, Santhosh Kumar K <s-k6@ti.com>,\n linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,\n linux-mtd@lists.infradead.org", "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-20260326_092622_175311_5DDC39F5 ", "X-CRM114-Status": "GOOD ( 10.74 )", "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: The logic is not complex but might be reused to cleanup a\n bit the section by moving it to a dedicated helper. Signed-off-by: Miquel\n Raynal <miquel.raynal@bootlin.com> --- drivers/mtd/nand/spi/winbond.c | 31\n +++++++++++++++++ 1 file changed, 17 insertions(+), 14 deletions(-)\n Content analysis details: (-2.1 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\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_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\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_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 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 [185.171.202.116 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 [185.171.202.116 listed in\n sa-accredit.habeas.com]\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 [185.171.202.116 listed in\n 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": "The logic is not complex but might be reused to cleanup a bit the\nsection by moving it to a dedicated helper.\n\nSigned-off-by: Miquel Raynal <miquel.raynal@bootlin.com>\n---\n drivers/mtd/nand/spi/winbond.c | 31 +++++++++++++++++--------------\n 1 file changed, 17 insertions(+), 14 deletions(-)", "diff": "diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c\nindex b30a343a6672..ffbcd25b0366 100644\n--- a/drivers/mtd/nand/spi/winbond.c\n+++ b/drivers/mtd/nand/spi/winbond.c\n@@ -421,30 +421,33 @@ static int w25n0xjw_set_sr4_hs(struct spinand_device *spinand, bool enable)\n \treturn spinand_write_reg_op(spinand, W25N0XJW_SR4, sr4);\n }\n \n+/*\n+ * SDR dual and quad I/O operations over 104MHz require the HS bit to\n+ * enable a few more dummy cycles.\n+ */\n+static bool w25n0xjw_op_needs_hs(const struct spi_mem_op *op)\n+{\n+\tif (op->cmd.dtr || op->addr.dtr || op->dummy.dtr || op->data.dtr)\n+\t\treturn false;\n+\telse if (op->cmd.buswidth != 1 || op->addr.buswidth == 1)\n+\t\treturn false;\n+\telse if (op->max_freq && op->max_freq <= 104 * HZ_PER_MHZ)\n+\t\treturn false;\n+\n+\treturn true;\n+}\n+\n static int w25n0xjw_hs_cfg(struct spinand_device *spinand,\n \t\t\t enum spinand_bus_interface iface)\n {\n \tconst struct spi_mem_op *op;\n-\tbool hs;\n \n \tif (iface != SSDR)\n \t\treturn -EOPNOTSUPP;\n \n-\t/*\n-\t * SDR dual and quad I/O operations over 104MHz require the HS bit to\n-\t * enable a few more dummy cycles.\n-\t */\n \top = spinand->op_templates->read_cache;\n-\tif (op->cmd.dtr || op->addr.dtr || op->dummy.dtr || op->data.dtr)\n-\t\ths = false;\n-\telse if (op->cmd.buswidth != 1 || op->addr.buswidth == 1)\n-\t\ths = false;\n-\telse if (op->max_freq && op->max_freq <= 104 * HZ_PER_MHZ)\n-\t\ths = false;\n-\telse\n-\t\ths = true;\n \n-\treturn w25n0xjw_set_sr4_hs(spinand, hs);\n+\treturn w25n0xjw_set_sr4_hs(spinand, w25n0xjw_op_needs_hs(op));\n }\n \n static int w35n0xjw_write_vcr(struct spinand_device *spinand, u8 reg, u8 val)\n", "prefixes": [ "v2", "10/11" ] }