From nobody Fri Jan 2 04:03:27 2026 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 DBD34CDB465 for ; Mon, 16 Oct 2023 15:47:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233883AbjJPPrK (ORCPT ); Mon, 16 Oct 2023 11:47:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40170 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233738AbjJPPrD (ORCPT ); Mon, 16 Oct 2023 11:47:03 -0400 Received: from EUR03-AM7-obe.outbound.protection.outlook.com (mail-am7eur03on2068.outbound.protection.outlook.com [40.107.105.68]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F6C2F5 for ; Mon, 16 Oct 2023 08:47:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=YC63Vy8RV0HVKD9Y9X1Yyt11DQjTsNyAoj0VzoR+2DflTQOffgGlzhovZkfiigPJjVlhH0f1ZHNmWbVnqQ92f8sCSvHjDke9op9EJh11/olcq19hqljYHQ4O01bWnJ9L+w6RGQhaXB3L+mLm5AH4JABao6E+/f3Peht5zikMtcxVBShH4EK/IPb8JaGrXs9Hajg6qCHMDfuryd4PAX4bAyDCn6WtmwVyKvkrFY9jp3rQCWpp+shBihnNatLN3VUyCEZSsojmfbY9a+r3rXudjikK/TYaHR0EIT17TMe/v3WdGMCC+YwjrA8WjgdcZR2TOcH6u+ncw7ba3Su8OGLTqA== 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=4JvC4g+VD60esWxTBSv5RI8lGH6ctutNh7mqUTggFg4=; b=Q3cxx1j+5BWyV8Xxc34x5VZjQ5z7ykhEqk79pt3M/ekZOgW1SNk3rpHAfHyBzPrWqOrTV+HHdT6cSeEQn2/I9lFlGbqya23LkeGOLvDYBRxWoGU8eaJD9qWeOZuoZ0HJnfKLOSsI3cWflYBZRaWFJsEyrSBE/TI2/faK5d17QCKZgkKvtO7VuUy7UmahwVNB2qRH2w5DNZQLQrHdjQ2XIQ0Aa0DLem9LQ9JPT3pcSVx/+r6X/4PP26myzOI2wff4fVEMpEVejNZSzu2BZlTpTGrFZRQcEHvbcqvOMs4kT7HppKatViJ6DKfZyDAHAhrQlMoHcgmcy1UZApGdGxKRNg== 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=4JvC4g+VD60esWxTBSv5RI8lGH6ctutNh7mqUTggFg4=; b=LsDggOlDpdF0D5PC7RDi556E7dlhJCMvdMhLUOEpim4v7GobtHQW34vnHaA8eDjLZBj/VYBiKjStYxsTYlkeSsRZhF1lAxV/3ECexolwrePCw3xFfPZFzj4q2bgRFGk36t/gd5HfV9QK9Zy/zbQ2Ra8DodiNEx4LEBztsBBx2nI= 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 DB9PR04MB8329.eurprd04.prod.outlook.com (2603:10a6:10:24c::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6863.47; Mon, 16 Oct 2023 15:46:57 +0000 Received: from AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::1774:e25f:f99:aca2]) by AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::1774:e25f:f99:aca2%4]) with mapi id 15.20.6886.034; Mon, 16 Oct 2023 15:46:56 +0000 From: Frank Li To: alexandre.belloni@bootlin.com, miquel.raynal@bootlin.com, conor.culhane@silvaco.com, joe@perches.com, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev Subject: [PATCH 4/5] i3c: master: svc return actual transfer data len Date: Mon, 16 Oct 2023 11:46:31 -0400 Message-Id: <20231016154632.2851957-5-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231016154632.2851957-1-Frank.Li@nxp.com> References: <20231016154632.2851957-1-Frank.Li@nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SJ0PR03CA0089.namprd03.prod.outlook.com (2603:10b6:a03:331::34) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB4838:EE_|DB9PR04MB8329:EE_ X-MS-Office365-Filtering-Correlation-Id: 161f0a0d-488c-4f24-6797-08dbce5f20a4 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)(136003)(346002)(376002)(396003)(230922051799003)(186009)(1800799009)(451199024)(64100799003)(6666004)(6512007)(6506007)(52116002)(5660300002)(8936002)(8676002)(38350700005)(478600001)(6486002)(1076003)(83380400001)(2616005)(26005)(66476007)(66556008)(66946007)(316002)(41300700001)(86362001)(38100700002)(2906002)(36756003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?s55BwbT+di1ygJjsy++c9ZIyg1r/4g2JZ7mx7+jNLH/zoaNOzFDiYouvX6Ls?= =?us-ascii?Q?kWibhokFdEudYhG3xAz4VaP+7gD3s5H7DjLW0UHAFI9EvG9di5VunkHD0Yaj?= =?us-ascii?Q?lBTrrfCWXIhzoCaKL0Y9ASrkzsD+xZ/AVzZttxggqgKG+eRvdvqH2b1p+OxV?= =?us-ascii?Q?bFQk7ceMzKEzN7zCXrzdZdeIIdt2PzXRt91dQbh1up+hOtLHsJSPkG+0EbeJ?= =?us-ascii?Q?lGyWYfQTj1NmPJF9Tqxcuyl7kOStRGd86mtpy3Te2aTgpaF5nH03PnpYzK4e?= =?us-ascii?Q?LfGRy2g98YiQQ3IxNrVIL5EbFK2msV+kvKQbY0Ze7IdS0cHcGPlPaOdRkCNK?= =?us-ascii?Q?nvfFXhB1KpKRwEqnVURrayr4+yiGEI2WuYiCJVfpyc9baoKsc9kGCU4NbSCk?= =?us-ascii?Q?j2+2DfFiX6HemkcGJhr1C43uS6QvzjN+E2vT0fqS5+o/ivS8GJIuiIhvEcvH?= =?us-ascii?Q?mdmgsFdZDGD/X3vI73kkxxhobQQMQCbxhTh+4HwH1RguUef/M6vVeqJEvRQQ?= =?us-ascii?Q?7SSPWjRd7hKGCmlWC+hIRncg8UuKQpnxB3IJ5rTzDJZRFavBiOA/j8lv6wnT?= =?us-ascii?Q?QWSbgp0M4ISyjA6/J30rhQTdawGFtElGMUh2RlI0jzqetESWhwz6r1GWSJah?= =?us-ascii?Q?NRwphUxL6g+rYXyNRiQHC+vYvVbta8VnRi7AInUKmKuZLN02zEPJzJ540az4?= =?us-ascii?Q?Wazz04/FtT6KlSxxDfRuuezsUgVzZ/T4LPunWYeeVJi/S8BH4bt9tWJivwEG?= =?us-ascii?Q?qoFXIz5C6DQ7sYb3gdiJA4agpjU2rNOi8YKxapOyP4hiakTaDQrUhj258OFU?= =?us-ascii?Q?+zppjE4QhXrn+plHpqdZ38N1/krQh/X4IigIr7bGtOs23seWbIDoasVHh2es?= =?us-ascii?Q?TYa9AWc5Kf9q4U/tagVww+4iRkHgh679RnmKcDJg6hZhqhktn6d5/yi4xkA5?= =?us-ascii?Q?DtwU4yKK+ScwB44AUsQHKllfQKxSx7gthKtm01H4NKdT8LddgUus+2RuHzSG?= =?us-ascii?Q?8iLk0kSP1X946/zbBmE+gAdAKY5BH4tEjpEdYUKILDTZtErjgBGmIDG20i8V?= =?us-ascii?Q?5eSBwxZthKpyDnu6ci5OrqHLWILVCgAtVVGE7ySnKCsGn1XE7R/tFuJQbZBs?= =?us-ascii?Q?gfe554D7rgI0v6ifdxGEq8JmsEAKduhdL6tYFsBrxJXTJ00eHIJVssrypV+m?= =?us-ascii?Q?38mNS8f0O9fb3kQECTCx2k1mqObeh/coXNYJvXWMptZHDFKcHk25J+1vu05g?= =?us-ascii?Q?pogCU2gqULyKZixpDD1HajOIxXIytq7ZT2xQl/axGKTQ3C9M/RDHVqQouISm?= =?us-ascii?Q?OZVM+VIw3HAeShXv3c/cNS/j0Zr9qFOTi1ofq2u83XAARentOjobLXKOPQLK?= =?us-ascii?Q?vnV4vrIcA4xnWi198l5h4q9OEsi4kS30LEr8Oj6p0vySiDjR+88aXgyIDQH3?= =?us-ascii?Q?IxfJT4q18yNiWiOPZVn93cw/i4uzP3rRj8gYhGNo2v86uWwF5JlOV5mP6/hc?= =?us-ascii?Q?n4N4zs9VxJ2DywBCy8UpZuDl7LYljTJGtatNljuBvrEIcL4NX1rFJNkoAml9?= =?us-ascii?Q?d3Q8tPUP9EtO7qnK8qc=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 161f0a0d-488c-4f24-6797-08dbce5f20a4 X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB4838.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Oct 2023 15:46:56.9398 (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: VCx1GMDBNUymHlGT9sARvJMbYQ3aHpIjC74ifTcRNHCBehZTlK4FOyogFMYFMPVGefxyjrSW+ZxTT+yjThZVCw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR04MB8329 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" to indicate how much data get by i3c_priv_xfer. Signed-off-by: Frank Li --- drivers/i3c/master/svc-i3c-master.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i= 3c-master.c index 3570b709cf60..444825aafa6f 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 @@ -1045,6 +1046,7 @@ 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 @@ -1062,6 +1064,7 @@ 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 @@ -1157,6 +1160,9 @@ static void svc_i3c_master_start_xfer_locked(struct s= vc_i3c_master *master) cmd->addr, cmd->in, cmd->out, cmd->len, &cmd->actual_len, cmd->continued); + if (cmd->xfer) + cmd->xfer->actual =3D cmd->actual_len; + if (ret) break; } @@ -1344,6 +1350,7 @@ 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