From patchwork Tue Dec 22 10:57:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud POULIQUEN X-Patchwork-Id: 11986327 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 175F2C433DB for ; Tue, 22 Dec 2020 10:59:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DC45023105 for ; Tue, 22 Dec 2020 10:59:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726837AbgLVK65 (ORCPT ); Tue, 22 Dec 2020 05:58:57 -0500 Received: from mx07-00178001.pphosted.com ([185.132.182.106]:60602 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726681AbgLVK64 (ORCPT ); Tue, 22 Dec 2020 05:58:56 -0500 Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 0BMAvKvC017379; Tue, 22 Dec 2020 11:58:11 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=selector1; bh=hSH+H/5k2tLr+GOxs0FZsD8RmN2qSemTHcqXNWMd+Kk=; b=akxDJVmAlcc8vCZTooD8MGXAmwVlQPkX5n52kvzCdN9l/knVvzjLf2eb5AHtvxrpa1P6 Z4aD3KF+Oxf1MOHAgKBH1H9+DvhIlQP43aq30zqiEHfM2Pdj4ndsFeI2mgW00gV7Rg0h /X9Z27iO8PElu5FZ0dKnNwmRhNWxweNulPgU+34oVPM0hQt0myDZOYno7vHm5uHeg6y7 wQMTWvOcJ1WRSLFRZdtUItIUtTH6OAleMCof8n1wlieSTC8cpdHMpJEf7vTAEhLczrst aXVovvAbU0goo92Qe9dNNDii28wvgxdoLiWFs3SYAsR6sYzGBqA9KoZkgMo+xj0awMMX SA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 35k7vva3hq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 22 Dec 2020 11:58:10 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 934F5100034; Tue, 22 Dec 2020 11:58:10 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 8663622ECB4; Tue, 22 Dec 2020 11:58:10 +0100 (CET) Received: from localhost (10.75.127.48) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 22 Dec 2020 11:58:10 +0100 From: Arnaud Pouliquen To: Bjorn Andersson , Ohad Ben-Cohen , Mathieu Poirier , Andy Gross CC: , , , , Subject: [PATCH v2 15/16] rpmsg: smd: add create and release rpmsg channel ops Date: Tue, 22 Dec 2020 11:57:25 +0100 Message-ID: <20201222105726.16906-16-arnaud.pouliquen@foss.st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201222105726.16906-1-arnaud.pouliquen@foss.st.com> References: <20201222105726.16906-1-arnaud.pouliquen@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG1NODE2.st.com (10.75.127.2) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343,18.0.737 definitions=2020-12-22_04:2020-12-21,2020-12-22 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add the new ops introduced by the rpmsg_ns series and used by the rpmsg_ctrl driver to instantiate a new rpmsg channel. Signed-off-by: Arnaud Pouliquen --- drivers/rpmsg/qcom_smd.c | 57 ++++++++++++++++++++++++++++++++++------ 1 file changed, 49 insertions(+), 8 deletions(-) diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index 19903de6268d..40853702f54f 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -67,6 +67,7 @@ struct smd_channel_info_word; struct smd_channel_info_word_pair; static const struct rpmsg_endpoint_ops qcom_smd_endpoint_ops; +static const struct rpmsg_device_ops qcom_smd_device_ops; #define SMD_ALLOC_TBL_COUNT 2 #define SMD_ALLOC_TBL_SIZE 64 @@ -1013,6 +1014,52 @@ static struct device_node *qcom_smd_match_channel(struct device_node *edge_node, return NULL; } +static void qcom_smd_release_device(struct device *dev) +{ + struct rpmsg_device *rpdev = to_rpmsg_device(dev); + struct qcom_smd_device *qsdev = to_smd_device(rpdev); + + kfree(qsdev); +} + +static struct rpmsg_device * +qcom_smd_create_rpmsg_ch(struct rpmsg_device *rp_parent, + struct rpmsg_channel_info *chinfo) +{ + struct qcom_smd_device *qsdev, *qspdev = to_smd_device(rp_parent); + struct qcom_smd_edge *edge = qspdev->edge; + int ret; + + qsdev = kzalloc(sizeof(*qsdev), GFP_KERNEL); + if (!qsdev) + return ERR_PTR(-ENOMEM); + + qsdev->edge = edge; + strncpy(qsdev->rpdev.id.name, chinfo->name, RPMSG_NAME_SIZE); + qsdev->rpdev.src = chinfo->src; + qsdev->rpdev.dst = chinfo->dst; + qsdev->rpdev.ops = &qcom_smd_device_ops; + qsdev->rpdev.dev.parent = &edge->dev; + qsdev->rpdev.dev.release = qcom_smd_release_device; + qsdev->rpdev.driver_override = (char *)chinfo->driver_override; + + ret = rpmsg_register_device(&qsdev->rpdev); + if (ret) { + kfree(qsdev); + return ERR_PTR(ret); + } + + return &qsdev->rpdev; +} + +static int qcom_smd_release_rpmsg_ch(struct rpmsg_device *rpdev, + struct rpmsg_channel_info *chinfo) +{ + struct qcom_smd_device *qsdev = to_smd_device(rpdev); + + return rpmsg_unregister_device(&qsdev->edge->dev, chinfo); +} + static int qcom_smd_announce_create(struct rpmsg_device *rpdev) { struct qcom_smd_endpoint *qept = to_smd_endpoint(rpdev->ept); @@ -1033,6 +1080,8 @@ static int qcom_smd_announce_create(struct rpmsg_device *rpdev) static const struct rpmsg_device_ops qcom_smd_device_ops = { .create_ept = qcom_smd_create_ept, .announce_create = qcom_smd_announce_create, + .create_channel = qcom_smd_create_rpmsg_ch, + .release_channel = qcom_smd_release_rpmsg_ch, }; static const struct rpmsg_endpoint_ops qcom_smd_endpoint_ops = { @@ -1042,14 +1091,6 @@ static const struct rpmsg_endpoint_ops qcom_smd_endpoint_ops = { .poll = qcom_smd_poll, }; -static void qcom_smd_release_device(struct device *dev) -{ - struct rpmsg_device *rpdev = to_rpmsg_device(dev); - struct qcom_smd_device *qsdev = to_smd_device(rpdev); - - kfree(qsdev); -} - /* * Create a smd client device for channel that is being opened. */