From nobody Thu Dec 18 04:51:16 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5127BC4167B for ; Fri, 1 Dec 2023 22:26:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1441875AbjLAW0M (ORCPT ); Fri, 1 Dec 2023 17:26:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55418 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1441848AbjLAW0D (ORCPT ); Fri, 1 Dec 2023 17:26:03 -0500 Received: from EUR05-AM6-obe.outbound.protection.outlook.com (mail-am6eur05on2062.outbound.protection.outlook.com [40.107.22.62]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0146D10EF for ; Fri, 1 Dec 2023 14:26:10 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=NSWHchDzwVSO6I+2RcooBdWwGwhwblMKBQl11kupf48CmiaOxtCfYjQyLRQV94mcGuD3GOGUIn+TUIRjngJyZEv9+FNZ6ElY+7gCYcS7TDFVD1z+RRdxPxwv6A2DKAHy4yUUxhH5jlaqnvXzMcvLlisx7BYpSRbLxjQfjjTTeZnU7vOi5nqk7Gw+2QwUEJ2tmYIjrwpfgCAzcB6pA/3R56O2HbAN+QbNRHv04hltCtUbnEZ99/MlHAAyui/2V+O53eznN5KxAyA2vzRY8rIm8j55ddmwecW6csEF65eoxirWc3s2xECqp6I+MXw1LUPtr69Gblgz0WTsFwzQUr2ltw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=QZK3nbhXsExbv0Znn3D5HF/BW5CgmYGvGvpxgFhIT0s=; b=j3M5CSYXH9+yVy35GhAATf2hepFfDTdfI4Qh+6dbQsblAxGwJMAVGn843scHkY2yZxVPyYC75q64AdLb/fex7PZw4/3NKFKJHCmQWAyQnaDXEJ6N9idZrI8R6hZGFT0KU+6sd/iq7Hkn3F6x+fSRN9/TvoC4t88y6T/l9gi7qdolvtQcl13muXE59i8XVF3CofSMsXn9TQhSNl7UZaqkrMtHpSoOFBv1jML3pjok4ni0APLiqvJDbfuhS/LxMnIPRYO7QR+6vz622OZX9nfcHCh85C6Mcw9AViwXyQw2WM8C0ZQp2wbhNfxigFMYwAz3RGbjmc1elN8U60YPaFOBrQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=QZK3nbhXsExbv0Znn3D5HF/BW5CgmYGvGvpxgFhIT0s=; b=M3fbhi1Uuar5MdcfOk4AeIpkb7dOadZ+1RexnoPFBXNJjY0eQd8N82s3tBGxEL2Odj3zG2Hs6fnvUxCj++vOFtCzA4hcjUxRPobXLQu3mdGnOfoWVeDjry+G/+4Og7ICgKmvgiL7cJ2yplrwkCJU8svNs+q4GIDkd6rkM4QBSxk= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) by AS4PR04MB9573.eurprd04.prod.outlook.com (2603:10a6:20b:4fb::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7068.13; Fri, 1 Dec 2023 22:26:08 +0000 Received: from AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::95f5:5118:258f:ee40]) by AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::95f5:5118:258f:ee40%6]) with mapi id 15.20.7068.016; Fri, 1 Dec 2023 22:26:08 +0000 From: Frank Li To: miquel.raynal@bootlin.com Cc: Frank.li@nxp.com, alexandre.belloni@bootlin.com, conor.culhane@silvaco.com, imx@lists.linux.dev, joe@perches.com, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org, zbigniew.lukwinski@linux.intel.com Subject: [v5 resend 5/6] i3c: master: svc: return actual transfer data len Date: Fri, 1 Dec 2023 17:25:31 -0500 Message-Id: <20231201222532.2431484-6-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231201222532.2431484-1-Frank.Li@nxp.com> References: <20231201222532.2431484-1-Frank.Li@nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: BY5PR17CA0022.namprd17.prod.outlook.com (2603:10b6:a03:1b8::35) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB4838:EE_|AS4PR04MB9573:EE_ X-MS-Office365-Filtering-Correlation-Id: 366b7918-1f91-4312-e94a-08dbf2bc83bb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM6PR04MB4838.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(39860400002)(366004)(346002)(376002)(136003)(396003)(230922051799003)(1800799012)(64100799003)(451199024)(186009)(83380400001)(86362001)(6506007)(26005)(1076003)(6666004)(52116002)(2616005)(6512007)(41300700001)(5660300002)(8936002)(8676002)(6486002)(478600001)(2906002)(4326008)(316002)(66556008)(6916009)(66476007)(36756003)(38100700002)(66946007)(38350700005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?6J+m3IeuWmiOylioAIIPL0x+9yFnigaqYLlOvn9Ft3gZUUnxcU18cpfUW5m6?= =?us-ascii?Q?dz7sgHSo0Q4GmLztUdgLQfep5pGpzKe2wFVUkaqHlN7NWxWs12j7uAscWEr6?= =?us-ascii?Q?Idc9sNdIZ0h7AdXuzFOrJvWfqaI+4+RrYFImDyXQXCsHOL+NyQWAit1hU694?= =?us-ascii?Q?0D7vzBWIVw9EV4LVOgAFG5NllDF1vn1P82pr2QF1hAZiqNWgWbHvaQqdm75o?= =?us-ascii?Q?LT1ItqlogpwZeYPKjcCFZt5g2lEB1Q0fe6YtxL3bcaQID0sRcjNf2NgB8FNg?= =?us-ascii?Q?+++UCbYHye8IF8doZ/jVt6e8PNHbvuM3Llhhxr7zBgWF8B6x1X0xsH9wJAV4?= =?us-ascii?Q?Il/Ca4+SqdIPa2ebOGf8wg1dT5trAV6ThtPP0WkuWO+DYXKSuLmGkqHJsUyQ?= =?us-ascii?Q?VNgWq+Ox7GDH/p8ie2lwiVfmKX6awP2juQYnzCyyk0Q4d13uVIdd8anulOUh?= =?us-ascii?Q?kUf8Tmy0NKnxk/LKkrrPindCQcUnpxaGmLv7QobeQJXsDspyLUUJaejm45Qm?= =?us-ascii?Q?bghEcFZ6pFLwn4HI4sCB/6snViOR1iVyQpOdR2pf/XgMvc45XniUcbperBBz?= =?us-ascii?Q?a9Vou8MNEJ94BbmZ6tLUFawwSKMAOWsIMTvIkKbxUsaT5VD8sfhvw7cKosWS?= =?us-ascii?Q?Jqd9YFRRD4tamzMp8UTDtAdJ2uv8twvGAEfnETgo++ntGFFQx0uzLR1v2yVV?= =?us-ascii?Q?kzvOIUzSnhgqA9+2A04vx8BSkpCtk8GJxTN92INYAhumlpJkVeIBlewx1968?= =?us-ascii?Q?O1rI+fGFxmc6En+TBvxx/f9m5mz0YbKdOyghNhqkhadJZzx1VRbd+aTa2QfF?= =?us-ascii?Q?QVOG5f5ZV6OBGRqkG2QDiOVn4he96s+MYeADjpawbJWv2I5WzbWLClpHr+Hw?= =?us-ascii?Q?N6A+NbxuVUb9c+LPiNADxzjj2r8Zj6SIgrGXuWPw0Xxq4uF1UDsmjeg+d7n9?= =?us-ascii?Q?MuRG1e+0tW2ntqJvKEqbbgz70jS496uT/2Kh906MjDl4c4tQu+OpG5iulzPu?= =?us-ascii?Q?jbNKdZIKQSbCwSNBNSrOcI1ADoXkMYZxPFEs7RMt5Zo6nIahiI03J+KIX2E4?= =?us-ascii?Q?vX/9tH9WbKOigcCAzWauvApz9T2vK7rnbT2HaFfq/8ly6B18G56+7U+oFAOR?= =?us-ascii?Q?JdvSHrV1/pVjwTuavwWaluwvQ6HCoZ/F1ClM/b/z1S8+mX97CgIB+ptWURW1?= =?us-ascii?Q?mYvCvxIlmbWNN0N7r07SWuZOCeBaiRgA1T3E20v4bxnqio6vN6ZK+r1Ss5KH?= =?us-ascii?Q?hsjUjW/dkQlDMuuyJxqM7RXSD0txNCf7d4kcLEH/ZammhQujz05VhNJSBHFT?= =?us-ascii?Q?lGZPE2nynauo01jO8QhGCpM7Rcbf+Ib88PMoeGCBgAv24LoCGbsiO1pdAUZn?= =?us-ascii?Q?hdK8vtruuMWeXrThbxYIAtzrEohz2Na0SpWUQZxXYqqv2o3r+yhvq9PvgrCn?= =?us-ascii?Q?Dh1MlJGTx9uuUOX9oVm0C+7yp9JRn1M+Wf8NZppYw5/hD353WLrKEk6I+OSH?= =?us-ascii?Q?TXrlOxHb8dZ9ucECjuEfcZkm0xQ5PCNiZEjX8feXGlfcV1cXntCB7ZriqVil?= =?us-ascii?Q?nSQR870F11NhHpuiafiQggmTblFiDKSeDaqbW7kg?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 366b7918-1f91-4312-e94a-08dbf2bc83bb X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB4838.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Dec 2023 22:26:08.2467 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 7dVlk5+EshCdBsMS2KGVvvvbqI0syIe7AGdj0IJ66CeXtFIiW/KN658rZdefg82As4ozqZawA7lLqznwDsMaDw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS4PR04MB9573 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" I3C allow devices early terminate data transfer. So set "actual_len" to indicate how much data get by i3c_priv_xfer. Reviewed-by: Miquel Raynal Signed-off-by: Frank Li --- Notes: change from v4 to v5 update prefix add Miquel's review tag drivers/i3c/master/svc-i3c-master.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i= 3c-master.c index 13a8b3c2aa541..bd10bb698da0f 100644 --- a/drivers/i3c/master/svc-i3c-master.c +++ b/drivers/i3c/master/svc-i3c-master.c @@ -138,6 +138,7 @@ struct svc_i3c_cmd { const void *out; unsigned int len; unsigned int actual_len; + struct i3c_priv_xfer *xfer; bool continued; }; =20 @@ -1061,6 +1062,7 @@ static int svc_i3c_master_xfer(struct svc_i3c_master = *master, =20 if (readl(master->regs + SVC_I3C_MERRWARN) & SVC_I3C_MERRWARN_NACK) { ret =3D -ENXIO; + *actual_len =3D 0; goto emit_stop; } =20 @@ -1078,6 +1080,7 @@ static int svc_i3c_master_xfer(struct svc_i3c_master = *master, */ if (SVC_I3C_MSTATUS_IBIWON(reg)) { ret =3D -ENXIO; + *actual_len =3D 0; goto emit_stop; } =20 @@ -1173,6 +1176,10 @@ static void svc_i3c_master_start_xfer_locked(struct = svc_i3c_master *master) cmd->addr, cmd->in, cmd->out, cmd->len, &cmd->actual_len, cmd->continued); + /* cmd->xfer is NULL if I2C or CCC transfer */ + if (cmd->xfer) + cmd->xfer->actual_len =3D cmd->actual_len; + if (ret) break; } @@ -1360,6 +1367,7 @@ static int svc_i3c_master_priv_xfers(struct i3c_dev_d= esc *dev, for (i =3D 0; i < nxfers; i++) { struct svc_i3c_cmd *cmd =3D &xfer->cmds[i]; =20 + cmd->xfer =3D &xfers[i]; cmd->addr =3D master->addrs[data->index]; cmd->rnw =3D xfers[i].rnw; cmd->in =3D xfers[i].rnw ? xfers[i].data.in : NULL; --=20 2.34.1