From patchwork Tue Dec 22 10:57:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud POULIQUEN X-Patchwork-Id: 11986375 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=-18.7 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,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 936ABC43333 for ; Tue, 22 Dec 2020 10:59:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7023523103 for ; Tue, 22 Dec 2020 10:59:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726491AbgLVK6v (ORCPT ); Tue, 22 Dec 2020 05:58:51 -0500 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:39062 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726288AbgLVK6u (ORCPT ); Tue, 22 Dec 2020 05:58:50 -0500 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 0BMAw5bP004484; Tue, 22 Dec 2020 11:58:05 +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=UPiHBdbTHBNY7dOfvc0ufFTBldl3o20yeOxrHUfL6kA=; b=aFPViVI0NW7dADKfDwovSbcpRfZr3rzSvb4GZ+NwE8AGTBgHtY2hDk09ztV0zoAYWYaI NlveXdKspUPgA7dDEl2nBvneCfetq056cn8lBXKJ+zYvRSVOjiBAnv31uqmbor5rxT5o pnshpAd7q2ybPFnxY/T1vKuf1MeJgBBOyoOHwqGYyUDchLRzgEID0COpxfxEBXCFWx3H SH3a1q6m74wbAfSuxBKa7u5TFGwtL1w1QqfSWyToZ6ab/pKGgR4vmuYSPmVJrgqUDaPi c6Wi1xgRUFIl92Q0UBOSZZn5qRapV+/cR3hF6gteW6e5sXEKKp4kfD4cMGu7SgdjrYeL Uw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 35k0cgky50-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 22 Dec 2020 11:58:05 +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 7E65810002A; Tue, 22 Dec 2020 11:58:04 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 6FC4A2073FA; Tue, 22 Dec 2020 11:58:03 +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 11:58:02 +0100 From: Arnaud Pouliquen To: Bjorn Andersson , Ohad Ben-Cohen , Mathieu Poirier , Andy Gross CC: , , , , Subject: [PATCH v2 06/16] rpmsg: add helper to register the rpmsg ctrl device Date: Tue, 22 Dec 2020 11:57:16 +0100 Message-ID: <20201222105726.16906-7-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: SFHDAG2NODE3.st.com (10.75.127.6) 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-remoteproc@vger.kernel.org This function registers a rpmsg_ctl device and its associated /dev/rpmsg_ctrl interface. Signed-off-by: Arnaud Pouliquen --- drivers/rpmsg/rpmsg_ctrl.c | 16 ++++++++++++++++ include/linux/rpmsg.h | 7 +++++++ 2 files changed, 23 insertions(+) diff --git a/drivers/rpmsg/rpmsg_ctrl.c b/drivers/rpmsg/rpmsg_ctrl.c index 8381b5b2b794..e4b0ca6dffe3 100644 --- a/drivers/rpmsg/rpmsg_ctrl.c +++ b/drivers/rpmsg/rpmsg_ctrl.c @@ -271,6 +271,22 @@ void rpmsg_ctrl_unregister_ctl(const struct rpmsg_drv_ctrl_info *ctrl) } EXPORT_SYMBOL(rpmsg_ctrl_unregister_ctl); +/** + * rpmsg_ctl_register_device() - register control device based on rpdev + * @rpdev: prepared rpdev to be used for creating endpoints + * + * This function wraps rpmsg_register_device() preparing the rpdev for use as + * a control rpmsg driver forcing the channel name. + */ +int rpmsg_ctl_register_device(struct rpmsg_device *rpdev) +{ + strcpy(rpdev->id.name, KBUILD_MODNAME); + rpdev->driver_override = KBUILD_MODNAME; + + return rpmsg_register_device(rpdev); +} +EXPORT_SYMBOL(rpmsg_ctl_register_device); + static int rpmsg_ctrl_init(void) { int ret; diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index 5681c585e235..86540528325f 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -335,6 +335,8 @@ static inline __poll_t rpmsg_poll(struct rpmsg_endpoint *ept, int rpmsg_ctrl_register_ctl(const struct rpmsg_drv_ctrl_info *ctrl); void rpmsg_ctrl_unregister_ctl(const struct rpmsg_drv_ctrl_info *ctrl); +int rpmsg_ctl_register_device(struct rpmsg_device *rpdev); + #else static inline int rpmsg_ctrl_register_ctl(const struct rpmsg_drv_ctrl_info *ctrl) @@ -346,6 +348,11 @@ static inline void rpmsg_ctrl_unregister_ctl(const struct rpmsg_drv_ctrl_info *c { } +static inline int rpmsg_ctl_register_device(struct rpmsg_device *rpdev) +{ + return 0; +} + #endif /* IS_ENABLED(CONFIG_RPMSG_CTRL) */ #endif /* _LINUX_RPMSG_H */