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GET /api/1.0/patches/2197816/?format=api
{ "id": 2197816, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2197816/?format=api", "project": { "id": 35, "url": "http://patchwork.ozlabs.org/api/1.0/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": "" }, "msgid": "<20260218150940.131354-2-eichest@gmail.com>", "date": "2026-02-18T15:08:49", "name": "[v1,1/2] i2c: imx: fix i2c issue when reading multiple messages", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "7ebb3b9a6fc2b3c2fa9d79ced47eaa2ccd42db73", "submitter": { "id": 70438, "url": "http://patchwork.ozlabs.org/api/1.0/people/70438/?format=api", "name": "Stefan Eichenberger", "email": "eichest@gmail.com" }, "delegate": { "id": 149066, "url": "http://patchwork.ozlabs.org/api/1.0/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/20260218150940.131354-2-eichest@gmail.com/mbox/", "series": [ { "id": 492569, "url": "http://patchwork.ozlabs.org/api/1.0/series/492569/?format=api", "date": "2026-02-18T15:08:48", "name": "i2c: imx: fix i2c issues when reading messages", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/492569/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2197816/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-i2c+bounces-16046-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 unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20230601 header.b=bfWitjns;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; helo=sea.lore.kernel.org;\n envelope-from=linux-i2c+bounces-16046-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com\n header.b=\"bfWitjns\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=209.85.221.45", "smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=gmail.com" ], "Received": [ "from sea.lore.kernel.org (sea.lore.kernel.org [172.234.253.10])\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 4fGKgq1YP8z1xpl\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 19 Feb 2026 02:10:15 +1100 (AEDT)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sea.lore.kernel.org (Postfix) with ESMTP id CAFBE3019F28\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 18 Feb 2026 15:09:56 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 2288533F394;\n\tWed, 18 Feb 2026 15:09:56 +0000 (UTC)", "from mail-wr1-f45.google.com (mail-wr1-f45.google.com\n [209.85.221.45])\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 A3B2C319610\n\tfor <linux-i2c@vger.kernel.org>; Wed, 18 Feb 2026 15:09:54 +0000 (UTC)", "by mail-wr1-f45.google.com with SMTP id\n ffacd0b85a97d-435f177a8f7so5824842f8f.1\n for <linux-i2c@vger.kernel.org>; Wed, 18 Feb 2026 07:09:54 -0800 (PST)", "from eichest-laptop.corp.toradex.com\n (248.201.173.83.static.wline.lns.sme.cust.swisscom.ch. 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This must only be done for\nthe last message. Otherwise, the driver will timeout.\n\nHere an example of such a sequence that fails with an error:\ni2ctransfer -y -a 0 w1@0x00 0x02 r1 w1@0x00 0x02 r1\nError: Sending messages failed: Connection timed out\n\nFixes: 5f5c2d4579ca (\"i2c: imx: prevent rescheduling in non dma mode\")\nCc: <stable@vger.kernel.org> # v6.13+\nSigned-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>\n---\n drivers/i2c/busses/i2c-imx.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c\nindex 85f554044cf1e..56e2a14495a9a 100644\n--- a/drivers/i2c/busses/i2c-imx.c\n+++ b/drivers/i2c/busses/i2c-imx.c\n@@ -1522,7 +1522,7 @@ static int i2c_imx_read(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs,\n \t\tdev_err(&i2c_imx->adapter.dev, \"<%s> read timedout\\n\", __func__);\n \t\treturn -ETIMEDOUT;\n \t}\n-\tif (!i2c_imx->stopped)\n+\tif (i2c_imx->is_lastmsg && !i2c_imx->stopped)\n \t\treturn i2c_imx_bus_busy(i2c_imx, 0, false);\n \n \treturn 0;\n", "prefixes": [ "v1", "1/2" ] }