From patchwork Mon Apr 27 17:13:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brent Lu X-Patchwork-Id: 192860 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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 45D73C4CECC for ; Mon, 27 Apr 2020 17:48:14 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C700721707 for ; Mon, 27 Apr 2020 17:48:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="OgF7u9hj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C700721707 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 2EA47168F; Mon, 27 Apr 2020 19:47:22 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 2EA47168F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1588009692; bh=FMt1vf6yW7K1R4Nnbn+PofdvzH5DJMyN4j77S03X46k=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=OgF7u9hjGbI+k9+b8df+JUJJJuyGCqbnHGUEkVNPllYVA4MJ2Azt3f8Cq95zULBxn wpf5bMLCbfIgo19uIUQYD1du3dzIRtItSip+v8TejN+jUqtMFtmfHNYchMTp5cIJKe 5aWVLCa9LfVWKCTlhXSgTbeAZJ3OJW3infkW5RHE= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 53F32F8028C; Mon, 27 Apr 2020 19:20:01 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 21E20F80245; Mon, 27 Apr 2020 19:19:54 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id AA4F1F80112 for ; Mon, 27 Apr 2020 19:19:50 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz AA4F1F80112 IronPort-SDR: i+lGf2E2UXAvkRn/dCFoPCgQip8RGqM2iIsOW4ve1ZCcTNrF0UPD+BPyjrEucUuKEI0zzUs+Ra BTkivECTdRJg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Apr 2020 10:19:48 -0700 IronPort-SDR: DADqqs2VzvU4RMSSL6T60L9KHe4i0BJ0rYCBdBIHkENHyPdaStM4QkMLCKL6kggUXRPd4ZJut5 q69mUwJ6AJ1w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,324,1583222400"; d="scan'208";a="458932342" Received: from brentlu-desk0.itwn.intel.com ([10.5.253.11]) by fmsmga006.fm.intel.com with ESMTP; 27 Apr 2020 10:19:45 -0700 From: Brent Lu To: alsa-devel@alsa-project.org Subject: [PATCH v2 2/3] ASoC: bdw-rt5650: add channel constraint Date: Tue, 28 Apr 2020 01:13:33 +0800 Message-Id: <1588007614-25061-3-git-send-email-brent.lu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588007614-25061-1-git-send-email-brent.lu@intel.com> References: <1588007614-25061-1-git-send-email-brent.lu@intel.com> Cc: Guennadi Liakhovetski , Cezary Rojewski , Kuninori Morimoto , linux-kernel@vger.kernel.org, Takashi Iwai , Jie Yang , Pierre-Louis Bossart , Liam Girdwood , Ben Zhang , Mac Chiang , Mark Brown , Brent Lu X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" BDW boards using this machine driver supports only 2 or 4-channel capture. Implement a constraint to enforce it. Signed-off-by: Brent Lu --- sound/soc/intel/boards/bdw-rt5650.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/sound/soc/intel/boards/bdw-rt5650.c b/sound/soc/intel/boards/bdw-rt5650.c index af2f502..a97e912 100644 --- a/sound/soc/intel/boards/bdw-rt5650.c +++ b/sound/soc/intel/boards/bdw-rt5650.c @@ -162,6 +162,34 @@ static int bdw_rt5650_rtd_init(struct snd_soc_pcm_runtime *rtd) } #endif +static const unsigned int channels[] = { + 2, 4, +}; + +static const struct snd_pcm_hw_constraint_list constraints_channels = { + .count = ARRAY_SIZE(channels), + .list = channels, + .mask = 0, +}; + +static int bdw_rt5650_fe_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + /* Board supports stereo and quad configurations for capture */ + if (substream->stream != SNDRV_PCM_STREAM_CAPTURE) + return 0; + + runtime->hw.channels_max = 4; + return snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); +} + +static const struct snd_soc_ops bdw_rt5650_fe_ops = { + .startup = bdw_rt5650_fe_startup, +}; + static int bdw_rt5650_init(struct snd_soc_pcm_runtime *rtd) { struct bdw_rt5650_priv *bdw_rt5650 = @@ -234,6 +262,7 @@ static struct snd_soc_dai_link bdw_rt5650_dais[] = { .name = "System PCM", .stream_name = "System Playback", .dynamic = 1, + .ops = &bdw_rt5650_fe_ops, #if !IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) .init = bdw_rt5650_rtd_init, #endif