From patchwork Tue Jul 25 02:34:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13325574 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 A9E83C0015E for ; Tue, 25 Jul 2023 02:36:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231181AbjGYCgF (ORCPT ); Mon, 24 Jul 2023 22:36:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231180AbjGYCfu (ORCPT ); Mon, 24 Jul 2023 22:35:50 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 336F91BD4; Mon, 24 Jul 2023 19:35:20 -0700 (PDT) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36P1tIB3003077; Tue, 25 Jul 2023 02:34:53 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=dnYSmfL3h/+R7898mdwbAx6Ipy9eFL3xPFJqCEmEdUY=; b=fE93RbtTWQTpSHFriuwGJKEemJjBUjRKxVOVTQdNeFElhcGg37lNiVNbtNYCKJgy67O9 Glbv8SMXxFGM/hkWfGVBY6NTofgcQRBYF0Jb5g+SldzXTwWfXtVUM9/X0ZwrhC7/PkV1 ZqVJe10nXXP2mcsCyMxWmdctIvblLEPo7GjV9k8g5jhdg9EK3PLjh2YPyqdrb9MmMsXJ 0M0myOFHuCc/BfsC4RfPd/uLNQFHr+HTZLJgAVN8HfEdfFrRzjRplOiMKgXdoFpx7XOX 84zwYkxQBnsrn5TiQZKl7PpswoX0K+MZ01Ap25CC0vhe1lEVmivlGADplZFST2M12CIw YQ== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3s1s1jsn6u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 25 Jul 2023 02:34:53 +0000 Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 36P2YqRC013260 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 25 Jul 2023 02:34:52 GMT Received: from hu-wcheng-lv.qualcomm.com (10.49.16.6) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Mon, 24 Jul 2023 19:34:51 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , , CC: , , , , , , , , , , , Wesley Cheng Subject: [PATCH v4 32/32] sound: soc: soc-usb: Rediscover USB SND devices on USB port add Date: Mon, 24 Jul 2023 19:34:16 -0700 Message-ID: <20230725023416.11205-33-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230725023416.11205-1-quic_wcheng@quicinc.com> References: <20230725023416.11205-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01a.na.qualcomm.com (10.47.209.196) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: psHjVqeFNP9WDrU1q4LD2YPKXzDVf7zm X-Proofpoint-ORIG-GUID: psHjVqeFNP9WDrU1q4LD2YPKXzDVf7zm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-24_18,2023-07-24_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 mlxlogscore=999 phishscore=0 clxscore=1015 priorityscore=1501 bulkscore=0 suspectscore=0 malwarescore=0 mlxscore=0 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307250021 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In case the USB backend device has not been initialized/probed, USB SND device connections can still occur. When the USB backend is eventually made available, previous USB SND device connections are not communicated to the USB backend. Call snd_usb_rediscover_devices() to generate the connect callbacks for all USB SND devices connected. This will allow for the USB backend to be updated with the current set of devices available. Signed-off-by: Wesley Cheng --- sound/soc/soc-usb.c | 2 ++ sound/usb/card.h | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index 84dc6d0b2eab..a9413e3d18df 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -111,6 +111,8 @@ struct snd_soc_usb *snd_soc_usb_add_port(struct device *dev, void *priv, list_add_tail(&usb->list, &usb_ctx_list); mutex_unlock(&ctx_mutex); + snd_usb_rediscover_devices(); + return usb; } EXPORT_SYMBOL_GPL(snd_soc_usb_add_port); diff --git a/sound/usb/card.h b/sound/usb/card.h index dfd241334e3d..6a14b74b47da 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -236,6 +236,7 @@ static struct snd_usb_stream *snd_usb_find_suppported_substream(int card_idx, { return NULL; } -void snd_usb_rediscover_devices(void) { } + +static void snd_usb_rediscover_devices(void) { } #endif /* IS_ENABLED(CONFIG_SND_USB_AUDIO) */ #endif /* __USBAUDIO_CARD_H */