Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2216486/?format=api
{ "id": 2216486, "url": "http://patchwork.ozlabs.org/api/patches/2216486/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-i2c/patch/20260326152656.14030-3-adilov@disroot.org/", "project": { "id": 35, "url": "http://patchwork.ozlabs.org/api/projects/35/?format=api", "name": "Linux I2C development", "link_name": "linux-i2c", "list_id": "linux-i2c.vger.kernel.org", "list_email": "linux-i2c@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260326152656.14030-3-adilov@disroot.org>", "list_archive_url": null, "date": "2026-03-26T15:26:50", "name": "[v5,2/8] i2c: rtl9300: introduce max length property to driver data", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "d383c6b5fbd467fd6b83bfa13bb7eb94fc321b89", "submitter": { "id": 92795, "url": "http://patchwork.ozlabs.org/api/people/92795/?format=api", "name": "Rustam Adilov", "email": "adilov@disroot.org" }, "delegate": { "id": 149066, "url": "http://patchwork.ozlabs.org/api/users/149066/?format=api", "username": "cazzacarna", "first_name": "Andi", "last_name": "Shyti", "email": "andi.shyti@kernel.org" }, "mbox": "http://patchwork.ozlabs.org/project/linux-i2c/patch/20260326152656.14030-3-adilov@disroot.org/mbox/", "series": [ { "id": 497610, "url": "http://patchwork.ozlabs.org/api/series/497610/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-i2c/list/?series=497610", "date": "2026-03-26T15:26:49", "name": "i2c: rtl9300: support for RTL9607C I2C controller", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/497610/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216486/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216486/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-i2c+bounces-16806-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-i2c@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=disroot.org header.i=@disroot.org header.a=rsa-sha256\n header.s=mail header.b=iHNJe8Od;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-i2c+bounces-16806-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org\n header.b=\"iHNJe8Od\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=178.21.23.139", "smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=disroot.org", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=disroot.org" ], "Received": [ "from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhSgt3DbMz1y1G\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 27 Mar 2026 02:42:02 +1100 (AEDT)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 19EEC3195401\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 26 Mar 2026 15:29:04 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 718CC40822B;\n\tThu, 26 Mar 2026 15:27:31 +0000 (UTC)", "from layka.disroot.org (layka.disroot.org [178.21.23.139])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id B841640710B;\n\tThu, 26 Mar 2026 15:27:29 +0000 (UTC)", "from [127.0.0.1] (localhost [127.0.0.1])\n\tby disroot.org (Postfix) with ESMTP id 56A19264DD;\n\tThu, 26 Mar 2026 16:27:28 +0100 (CET)", "from layka.disroot.org ([127.0.0.1])\n by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP\n id 0cnvZarManhI; Thu, 26 Mar 2026 16:27:27 +0100 (CET)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1774538851; cv=none;\n b=D0fpJqoDdhJuJ0+qr5hhC06UjjSL8UyORPss6OnaJ0WNFOL0juN5bm0Aww7YsSBc2C044BtBOuA80YvDyJm8pM5NuMRo1zPLVrccuw6B0fv1K/Dc7Pwl3iZ2EMOauEx9dWjmMSJzA/NzR6Q8AgXuRXyG9eoM3zWrmJCWfeqkqlI=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1774538851; c=relaxed/simple;\n\tbh=78qH5nIWIELIDV6PJGBxhJTVaTi35H4kfKGiY4tduC4=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=nd2UI0JuVjdloFpzsrrTMrCfHxxSQLsDk62x0GUkX4b5DQzlnHnV58X4bdIMU8oL1w7fb6bOhGabAoDJdOHW4arPEsZ+s0sd+W6ggK0QeO8A7wc9xlAlhaAlnCv8T+0GdcsS3Y0wXCs9hjYK2rD7d0xa+MZ47qbsRNv4pN41Dco=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=disroot.org;\n spf=pass smtp.mailfrom=disroot.org;\n dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org\n header.b=iHNJe8Od; arc=none smtp.client-ip=178.21.23.139", "X-Virus-Scanned": "SPAM Filter at disroot.org", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail;\n\tt=1774538847; bh=78qH5nIWIELIDV6PJGBxhJTVaTi35H4kfKGiY4tduC4=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References;\n\tb=iHNJe8OdJds1rmXcV0W40zvTX9fCdn+CkGW2y1qYVEC12jBdfpI8TF4mGERREpPUa\n\t AQIraAzeYbBhbsJmKLnvN9AS+C4sxYtwBVCGJoTv6YQBRUJrIPTcIR2agDzCzE5uhR\n\t jOL+Gg8gqi8XC/+Aw9IrZ1b9dLIqt+PnB1/wRbML1MWHEAsIMlKtBMXZV/T4eJvE/E\n\t RhWHYEdNy7fvDOhpp9ZouV1mW2pcMO67ER9t/j9/3X51LscCJscEvccB1qKDLBnouG\n\t OYWuzO6mmqfJDldW+IyEg6/R70fdyox5iSaAL44o5EjWQxvSiSxM4481FtBXoNfq9x\n\t JHDa/Ww9v+tnQ==", "From": "Rustam Adilov <adilov@disroot.org>", "To": "Chris Packham <chris.packham@alliedtelesis.co.nz>,\n\tAndi Shyti <andi.shyti@kernel.org>,\n\tRob Herring <robh@kernel.org>,\n\tKrzysztof Kozlowski <krzk+dt@kernel.org>,\n\tConor Dooley <conor+dt@kernel.org>,\n\tlinux-i2c@vger.kernel.org,\n\tdevicetree@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org", "Cc": "Rustam Adilov <adilov@disroot.org>", "Subject": "[PATCH v5 2/8] i2c: rtl9300: introduce max length property to driver\n data", "Date": "Thu, 26 Mar 2026 20:26:50 +0500", "Message-ID": "<20260326152656.14030-3-adilov@disroot.org>", "In-Reply-To": "<20260326152656.14030-1-adilov@disroot.org>", "References": "<20260326152656.14030-1-adilov@disroot.org>", "Precedence": "bulk", "X-Mailing-List": "linux-i2c@vger.kernel.org", "List-Id": "<linux-i2c.vger.kernel.org>", "List-Subscribe": "<mailto:linux-i2c+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-i2c+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit" }, "content": "In RTL9607C i2c controller, theoretical maximum the data length\ncan be is 4 bytes as opposed to 16 bytes on rtl9300 and rtl9310.\n\nIntroduce a new property to the driver data struct for that.\nAdjust if statement in prepare_xfer function to follow that new\nproperty instead of the hardcoded value.\n\nReviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>\nSigned-off-by: Rustam Adilov <adilov@disroot.org>\n---\n drivers/i2c/busses/i2c-rtl9300.c | 9 ++++++++-\n 1 file changed, 8 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/i2c/busses/i2c-rtl9300.c b/drivers/i2c/busses/i2c-rtl9300.c\nindex 9bf4c6b08e05..2cada6038b44 100644\n--- a/drivers/i2c/busses/i2c-rtl9300.c\n+++ b/drivers/i2c/busses/i2c-rtl9300.c\n@@ -64,11 +64,14 @@ struct rtl9300_i2c_drv_data {\n \tu32 rd_reg;\n \tu32 wd_reg;\n \tu8 max_nchan;\n+\tu8 max_data_len;\n };\n \n #define RTL9300_I2C_MUX_NCHAN\t8\n #define RTL9310_I2C_MUX_NCHAN\t12\n \n+#define RTL9300_I2C_MAX_DATA_LEN\t16\n+\n struct rtl9300_i2c {\n \tstruct regmap *regmap;\n \tstruct device *dev;\n@@ -210,9 +213,11 @@ static int rtl9300_i2c_writel(struct rtl9300_i2c *i2c, u32 data)\n \n static int rtl9300_i2c_prepare_xfer(struct rtl9300_i2c *i2c, struct rtl9300_i2c_xfer *xfer)\n {\n+\tconst struct rtl9300_i2c_drv_data *drv_data;\n \tint ret;\n \n-\tif (xfer->data_len < 1 || xfer->data_len > 16)\n+\tdrv_data = device_get_match_data(i2c->dev);\n+\tif (xfer->data_len < 1 || xfer->data_len > drv_data->max_data_len)\n \t\treturn -EINVAL;\n \n \tret = regmap_field_write(i2c->fields[F_DEV_ADDR], xfer->dev_addr);\n@@ -505,6 +510,7 @@ static const struct rtl9300_i2c_drv_data rtl9300_i2c_drv_data = {\n \t.rd_reg = RTL9300_I2C_MST_DATA_WORD0,\n \t.wd_reg = RTL9300_I2C_MST_DATA_WORD0,\n \t.max_nchan = RTL9300_I2C_MUX_NCHAN,\n+\t.max_data_len = RTL9300_I2C_MAX_DATA_LEN,\n };\n \n static const struct rtl9300_i2c_drv_data rtl9310_i2c_drv_data = {\n@@ -526,6 +532,7 @@ static const struct rtl9300_i2c_drv_data rtl9310_i2c_drv_data = {\n \t.rd_reg = RTL9310_I2C_MST_DATA_CTRL,\n \t.wd_reg = RTL9310_I2C_MST_DATA_CTRL,\n \t.max_nchan = RTL9310_I2C_MUX_NCHAN,\n+\t.max_data_len = RTL9300_I2C_MAX_DATA_LEN,\n };\n \n static const struct of_device_id i2c_rtl9300_dt_ids[] = {\n", "prefixes": [ "v5", "2/8" ] }