From mboxrd@z Thu Jan 1 00:00:00 1970 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 60F3BC4167B for ; Sat, 24 Dec 2022 08:19:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229650AbiLXIT1 (ORCPT ); Sat, 24 Dec 2022 03:19:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229487AbiLXIT0 (ORCPT ); Sat, 24 Dec 2022 03:19:26 -0500 Received: from mx01.omp.ru (mx01.omp.ru [90.154.21.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31337BC31; Sat, 24 Dec 2022 00:19:22 -0800 (PST) Received: from [192.168.1.103] (178.176.73.194) by msexch01.omp.ru (10.188.4.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.986.14; Sat, 24 Dec 2022 11:19:11 +0300 Subject: Re: [RFC PATCH 12/14] sound: soc: qcom: qusb6: Ensure PCM format is supported by USB audio device To: Wesley Cheng , , , , , , , , , , , , , CC: , , , , , , References: <20221223233200.26089-1-quic_wcheng@quicinc.com> <20221223233200.26089-13-quic_wcheng@quicinc.com> From: Sergey Shtylyov Organization: Open Mobile Platform Message-ID: <6e5da084-d2fb-4b84-1c3c-cd428ee111ec@omp.ru> Date: Sat, 24 Dec 2022 11:19:04 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <20221223233200.26089-13-quic_wcheng@quicinc.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [178.176.73.194] X-ClientProxiedBy: msexch01.omp.ru (10.188.4.12) To msexch01.omp.ru (10.188.4.12) X-KSE-ServerInfo: msexch01.omp.ru, 9 X-KSE-AntiSpam-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 5.9.59, Database issued on: 12/24/2022 07:56:21 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 59 X-KSE-AntiSpam-Info: Lua profiles 174384 [Dec 24 2022] X-KSE-AntiSpam-Info: Version: 5.9.59.0 X-KSE-AntiSpam-Info: Envelope from: s.shtylyov@omp.ru X-KSE-AntiSpam-Info: LuaCore: 502 502 69dee8ef46717dd3cb3eeb129cb7cc8dab9e30f6 X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: {relay has no DNS name} X-KSE-AntiSpam-Info: {SMTP from is not routable} X-KSE-AntiSpam-Info: {Found in DNSBL: 178.176.73.194 in (user) b.barracudacentral.org} X-KSE-AntiSpam-Info: 127.0.0.199:7.1.2;omp.ru:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;178.176.73.194:7.1.2 X-KSE-AntiSpam-Info: ApMailHostAddress: 178.176.73.194 X-KSE-AntiSpam-Info: {DNS response errors} X-KSE-AntiSpam-Info: Rate: 59 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dmarc=temperror header.from=omp.ru;spf=temperror smtp.mailfrom=omp.ru;dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 12/24/2022 07:59:00 X-KSE-AttachmentFiltering-Interceptor-Info: protection disabled X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 12/24/2022 6:00:00 AM X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Hello! On 12/24/22 2:31 AM, Wesley Cheng wrote: > Check for if the PCM format is supported during the hw_params callback. If > the profile is not supported then the userspace ALSA entity will receive an > error, and can take further action. > > Signed-off-by: Wesley Cheng > --- > sound/soc/qcom/qdsp6/q6usb.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c > index a9da6dec6c6f..128e0974db4e 100644 > --- a/sound/soc/qcom/qdsp6/q6usb.c > +++ b/sound/soc/qcom/qdsp6/q6usb.c > @@ -42,7 +42,14 @@ static int q6usb_hw_params(struct snd_pcm_substream *substream, > struct snd_pcm_hw_params *params, > struct snd_soc_dai *dai) > { > - return 0; > + struct q6usb_port_data *data = dev_get_drvdata(dai->dev); > + int direction = substream->stream; > + int ret; You don't seem to need this variable, just use *return* snd_soc_usb_find_format(...). > + > + ret = snd_soc_usb_find_format(data->active_idx, params, direction); > + > + return ret; > + > } > static const struct snd_soc_dai_ops q6usb_ops = { > .hw_params = q6usb_hw_params, MBR, Sergey