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GET /api/patches/2216512/?format=api
{ "id": 2216512, "url": "http://patchwork.ozlabs.org/api/patches/2216512/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/patch/20260326-winbond-v6-18-rc1-cont-read-v2-4-643de97a68a3@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-v2-4-643de97a68a3@bootlin.com>", "list_archive_url": null, "date": "2026-03-26T16:25:51", "name": "[v2,04/11] spi: spi-mem: Transform the read operation template", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "270f8c9eaa9b461d89a46bfd0f0bf2ecaaeb4e7c", "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-v2-4-643de97a68a3@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/2216512/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216512/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=sABcoZv1;\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=M2lKDKd9;\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=cqniBmFUgIF86+SQIH262hnP198NP5O0MxFZeRWAkvE=; b=sABcoZv11uvQHy\n\tr+SQVkI76DnpVi371/kMb3iMO4u8A8122XF7qQ1WtbFwgl1INWLliE6H2Xh0J6f5Uecfw7J9bhpz2\n\tLUNJNkylIPIPgzU8X4qM+fmt7fCIQiJ091YBz9Ly41OPFrxStO5T1FNRQCQE0f0zsW3IsbjfMUtR4\n\tf0keBU7A7wsm40OoH/YnFUFCZ63lSxwde8YoDEKa5uVljzzInQes23bOR2bqXDhVST4hM2GHAcjMw\n\tcJIvPT+gpb3iv8tk2JKfb07C///DJ7h0S78IVosqhxXLqJiWBYw7rBMW8fRB2x3IJ+odPqXZBBwuM\n\t6Lv7r3mAu+PyfV+c9cBQ==;", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n\tt=1774542372; h=from:subject:date:message-id:to:cc:mime-version:content-type:\n\t content-transfer-encoding:in-reply-to:references;\n\tbh=No2FU9QfdRqbWVypforHQbPWeUdzW3YtFHj8aG5zOTE=;\n\tb=M2lKDKd9D0WXooDNyS9sGpXtV/vLkVc76lcRrVgNzczHEKneXifP+Fb0FBsYL6IceU0I50\n\tafvLqxyX7tp+SxxJZqY88MG14+9ZYePcd5EX7X0n8xBDE1PYGj2YPN2Qxi69Pc/DU99PpP\n\tlZZcKGVpZPXHxZzmA9JJmHU1wburAcNKOlZi2wpR29T1cHYrVfi6u8k8ELXA5pDogYaU15\n\tt7yQkYWRvgJliWkhvo9cwKxf9Gkdb6ukrXzTNIKxx6Dcezn23a73qyjLU36J1/bStEEleD\n\tsfH2+U3dB+J1IaTAyXY9gomnUNG2tHdLBmiG9gsO7lwM3NR+c7nIV8kIRWctVw==" ], "From": "Miquel Raynal <miquel.raynal@bootlin.com>", "Date": "Thu, 26 Mar 2026 17:25:51 +0100", "Subject": "[PATCH v2 04/11] spi: spi-mem: Transform the read operation\n template", "MIME-Version": "1.0", "Message-Id": "\n <20260326-winbond-v6-18-rc1-cont-read-v2-4-643de97a68a3@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_092614_478054_FE0FE6B2 ", "X-CRM114-Status": "GOOD ( 18.24 )", "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: As of now,\n we only use a single operation template when creating\n SPI memory direct mappings. With the idea to extend this possibility to 2,\n rename the template to reflect that we are currently setting [...]\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 [185.171.202.116 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 [185.171.202.116 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 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]", "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": "As of now, we only use a single operation template when creating SPI\nmemory direct mappings. With the idea to extend this possibility to 2,\nrename the template to reflect that we are currently setting the\n\"primary\" operation, and create a pointer in the same structure to point\nto it.\n\nFrom a user point of view, the op_tmpl name remains but becomes a\npointer, leading to minor changes in both the SPI NAND and SPI NOR\ncores.\n\nThere is no functional change.\n\nAcked-by: Mark Brown <broonie@kernel.org>\nSigned-off-by: Miquel Raynal <miquel.raynal@bootlin.com>\n---\n drivers/mtd/nand/spi/core.c | 15 ++++++++-------\n drivers/mtd/spi-nor/core.c | 22 ++++++++++++----------\n drivers/spi/spi-mem.c | 15 ++++++++-------\n include/linux/spi/spi-mem.h | 3 ++-\n 4 files changed, 30 insertions(+), 25 deletions(-)", "diff": "diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c\nindex 663f5d6a6bd7..a66510747b31 100644\n--- a/drivers/mtd/nand/spi/core.c\n+++ b/drivers/mtd/nand/spi/core.c\n@@ -491,9 +491,9 @@ static int spinand_read_from_cache_op(struct spinand_device *spinand,\n \n \tif (nand->ecc.engine->integration == NAND_ECC_ENGINE_INTEGRATION_PIPELINED &&\n \t req->mode != MTD_OPS_RAW)\n-\t\trdesc->info.op_tmpl.data.ecc = true;\n+\t\trdesc->info.op_tmpl->data.ecc = true;\n \telse\n-\t\trdesc->info.op_tmpl.data.ecc = false;\n+\t\trdesc->info.op_tmpl->data.ecc = false;\n \n \tif (spinand->flags & SPINAND_HAS_READ_PLANE_SELECT_BIT)\n \t\tcolumn |= req->pos.plane << fls(nanddev_page_size(nand));\n@@ -586,9 +586,9 @@ static int spinand_write_to_cache_op(struct spinand_device *spinand,\n \n \tif (nand->ecc.engine->integration == NAND_ECC_ENGINE_INTEGRATION_PIPELINED &&\n \t req->mode != MTD_OPS_RAW)\n-\t\twdesc->info.op_tmpl.data.ecc = true;\n+\t\twdesc->info.op_tmpl->data.ecc = true;\n \telse\n-\t\twdesc->info.op_tmpl.data.ecc = false;\n+\t\twdesc->info.op_tmpl->data.ecc = false;\n \n \tif (spinand->flags & SPINAND_HAS_PROG_PLANE_SELECT_BIT)\n \t\tcolumn |= req->pos.plane << fls(nanddev_page_size(nand));\n@@ -1247,7 +1247,8 @@ static int spinand_create_dirmap(struct spinand_device *spinand,\n \n \t/* Write descriptor */\n \tinfo.length = nanddev_page_size(nand) + nanddev_per_page_oobsize(nand);\n-\tinfo.op_tmpl.data.ecc = enable_ecc;\n+\tinfo.primary_op_tmpl = *spinand->op_templates->update_cache;\n+\tinfo.primary_op_tmpl.data.ecc = enable_ecc;\n \tdesc = devm_spi_mem_dirmap_create(&spinand->spimem->spi->dev,\n \t\t\t\t\t spinand->spimem, &info);\n \tif (IS_ERR(desc))\n@@ -1256,8 +1257,8 @@ static int spinand_create_dirmap(struct spinand_device *spinand,\n \tspinand->dirmaps[plane].wdesc = desc;\n \n \t/* Read descriptor */\n-\tinfo.op_tmpl = *spinand->op_templates->read_cache;\n-\tinfo.op_tmpl.data.ecc = enable_ecc;\n+\tinfo.primary_op_tmpl = *spinand->op_templates->read_cache;\n+\tinfo.primary_op_tmpl.data.ecc = enable_ecc;\n \tdesc = spinand_create_rdesc(spinand, &info);\n \tif (IS_ERR(desc))\n \t\treturn PTR_ERR(desc);\ndiff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c\nindex 8ffeb41c3e08..84b98d6b12cd 100644\n--- a/drivers/mtd/spi-nor/core.c\n+++ b/drivers/mtd/spi-nor/core.c\n@@ -3641,14 +3641,15 @@ EXPORT_SYMBOL_GPL(spi_nor_scan);\n static int spi_nor_create_read_dirmap(struct spi_nor *nor)\n {\n \tstruct spi_mem_dirmap_info info = {\n-\t\t.op_tmpl = SPI_MEM_OP(SPI_MEM_OP_CMD(nor->read_opcode, 0),\n-\t\t\t\t SPI_MEM_OP_ADDR(nor->addr_nbytes, 0, 0),\n-\t\t\t\t SPI_MEM_OP_DUMMY(nor->read_dummy, 0),\n-\t\t\t\t SPI_MEM_OP_DATA_IN(0, NULL, 0)),\n+\t\t.op_tmpl = &info.primary_op_tmpl,\n+\t\t.primary_op_tmpl = SPI_MEM_OP(SPI_MEM_OP_CMD(nor->read_opcode, 0),\n+\t\t\t\t\t SPI_MEM_OP_ADDR(nor->addr_nbytes, 0, 0),\n+\t\t\t\t\t SPI_MEM_OP_DUMMY(nor->read_dummy, 0),\n+\t\t\t\t\t SPI_MEM_OP_DATA_IN(0, NULL, 0)),\n \t\t.offset = 0,\n \t\t.length = nor->params->size,\n \t};\n-\tstruct spi_mem_op *op = &info.op_tmpl;\n+\tstruct spi_mem_op *op = info.op_tmpl;\n \n \tspi_nor_spimem_setup_op(nor, op, nor->read_proto);\n \n@@ -3672,14 +3673,15 @@ static int spi_nor_create_read_dirmap(struct spi_nor *nor)\n static int spi_nor_create_write_dirmap(struct spi_nor *nor)\n {\n \tstruct spi_mem_dirmap_info info = {\n-\t\t.op_tmpl = SPI_MEM_OP(SPI_MEM_OP_CMD(nor->program_opcode, 0),\n-\t\t\t\t SPI_MEM_OP_ADDR(nor->addr_nbytes, 0, 0),\n-\t\t\t\t SPI_MEM_OP_NO_DUMMY,\n-\t\t\t\t SPI_MEM_OP_DATA_OUT(0, NULL, 0)),\n+\t\t.op_tmpl = &info.primary_op_tmpl,\n+\t\t.primary_op_tmpl = SPI_MEM_OP(SPI_MEM_OP_CMD(nor->program_opcode, 0),\n+\t\t\t\t\t SPI_MEM_OP_ADDR(nor->addr_nbytes, 0, 0),\n+\t\t\t\t\t SPI_MEM_OP_NO_DUMMY,\n+\t\t\t\t\t SPI_MEM_OP_DATA_OUT(0, NULL, 0)),\n \t\t.offset = 0,\n \t\t.length = nor->params->size,\n \t};\n-\tstruct spi_mem_op *op = &info.op_tmpl;\n+\tstruct spi_mem_op *op = info.op_tmpl;\n \n \tif (nor->program_opcode == SPINOR_OP_AAI_WP && nor->sst_write_second)\n \t\top->addr.nbytes = 0;\ndiff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c\nindex a09371a075d2..e2eaa1ba4ff6 100644\n--- a/drivers/spi/spi-mem.c\n+++ b/drivers/spi/spi-mem.c\n@@ -647,7 +647,7 @@ EXPORT_SYMBOL_GPL(spi_mem_calc_op_duration);\n static ssize_t spi_mem_no_dirmap_read(struct spi_mem_dirmap_desc *desc,\n \t\t\t\t u64 offs, size_t len, void *buf)\n {\n-\tstruct spi_mem_op op = desc->info.op_tmpl;\n+\tstruct spi_mem_op op = *desc->info.op_tmpl;\n \tint ret;\n \n \top.addr.val = desc->info.offset + offs;\n@@ -667,7 +667,7 @@ static ssize_t spi_mem_no_dirmap_read(struct spi_mem_dirmap_desc *desc,\n static ssize_t spi_mem_no_dirmap_write(struct spi_mem_dirmap_desc *desc,\n \t\t\t\t u64 offs, size_t len, const void *buf)\n {\n-\tstruct spi_mem_op op = desc->info.op_tmpl;\n+\tstruct spi_mem_op op = *desc->info.op_tmpl;\n \tint ret;\n \n \top.addr.val = desc->info.offset + offs;\n@@ -706,11 +706,11 @@ spi_mem_dirmap_create(struct spi_mem *mem,\n \tint ret = -ENOTSUPP;\n \n \t/* Make sure the number of address cycles is between 1 and 8 bytes. */\n-\tif (!info->op_tmpl.addr.nbytes || info->op_tmpl.addr.nbytes > 8)\n+\tif (!info->primary_op_tmpl.addr.nbytes || info->primary_op_tmpl.addr.nbytes > 8)\n \t\treturn ERR_PTR(-EINVAL);\n \n \t/* data.dir should either be SPI_MEM_DATA_IN or SPI_MEM_DATA_OUT. */\n-\tif (info->op_tmpl.data.dir == SPI_MEM_NO_DATA)\n+\tif (info->primary_op_tmpl.data.dir == SPI_MEM_NO_DATA)\n \t\treturn ERR_PTR(-EINVAL);\n \n \tdesc = kzalloc_obj(*desc);\n@@ -719,6 +719,7 @@ spi_mem_dirmap_create(struct spi_mem *mem,\n \n \tdesc->mem = mem;\n \tdesc->info = *info;\n+\tdesc->info.op_tmpl = &desc->info.primary_op_tmpl;\n \tif (ctlr->mem_ops && ctlr->mem_ops->dirmap_create) {\n \t\tret = spi_mem_access_start(mem);\n \t\tif (ret) {\n@@ -733,7 +734,7 @@ spi_mem_dirmap_create(struct spi_mem *mem,\n \n \tif (ret) {\n \t\tdesc->nodirmap = true;\n-\t\tif (!spi_mem_supports_op(desc->mem, &desc->info.op_tmpl))\n+\t\tif (!spi_mem_supports_op(desc->mem, &desc->info.primary_op_tmpl))\n \t\t\tret = -EOPNOTSUPP;\n \t\telse\n \t\t\tret = 0;\n@@ -857,7 +858,7 @@ ssize_t spi_mem_dirmap_read(struct spi_mem_dirmap_desc *desc,\n \tstruct spi_controller *ctlr = desc->mem->spi->controller;\n \tssize_t ret;\n \n-\tif (desc->info.op_tmpl.data.dir != SPI_MEM_DATA_IN)\n+\tif (desc->info.op_tmpl->data.dir != SPI_MEM_DATA_IN)\n \t\treturn -EINVAL;\n \n \tif (!len)\n@@ -903,7 +904,7 @@ ssize_t spi_mem_dirmap_write(struct spi_mem_dirmap_desc *desc,\n \tstruct spi_controller *ctlr = desc->mem->spi->controller;\n \tssize_t ret;\n \n-\tif (desc->info.op_tmpl.data.dir != SPI_MEM_DATA_OUT)\n+\tif (desc->info.op_tmpl->data.dir != SPI_MEM_DATA_OUT)\n \t\treturn -EINVAL;\n \n \tif (!len)\ndiff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h\nindex 5774e554c0f0..3cba7fe4bed5 100644\n--- a/include/linux/spi/spi-mem.h\n+++ b/include/linux/spi/spi-mem.h\n@@ -225,7 +225,8 @@ struct spi_mem_op {\n * direction is directly encoded in the ->op_tmpl.data.dir field.\n */\n struct spi_mem_dirmap_info {\n-\tstruct spi_mem_op op_tmpl;\n+\tstruct spi_mem_op *op_tmpl;\n+\tstruct spi_mem_op primary_op_tmpl;\n \tu64 offset;\n \tu64 length;\n };\n", "prefixes": [ "v2", "04/11" ] }