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 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 8F2B7C54FD0 for ; Mon, 27 Apr 2020 08:44:30 +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 19B1F2080C for ; Mon, 27 Apr 2020 08:44:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="PoXi+QVa" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 19B1F2080C 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 74BBB1677; Mon, 27 Apr 2020 10:43:38 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 74BBB1677 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1587977068; bh=O0XhvCLiVDwdW+Eqjl81Hb5Y7zjpZMOPwNtrNzeiGYQ=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=PoXi+QVagvbOgGw/NceIDFYjn9ZDbx/5VcJPbBLokHxBvQRu8dHAI66QUrAcyyTVL hgApZ2Ly/ugzICu0GQb2Bz45kePz69MwSs0f+/oR7D/o9tbnPbauX0TVJaicI7Usou cgEYJVw82hBxHp/Is+O+2F4b1nMmimPmF6uEhLNU= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 0923FF80217; Mon, 27 Apr 2020 10:43:38 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 359F6F80247; Mon, 27 Apr 2020 10:43:37 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) (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 EB26DF80217 for ; Mon, 27 Apr 2020 10:43:31 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz EB26DF80217 IronPort-SDR: k/kWOIE14aU/EsaUyijR9Cz1ZGdMzZeYWhtqYzpoJ/xWbVqp1ce+af9Bm2Tfj2DxmlqtQKfT+c dqcEL/m0m4lg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Apr 2020 01:43:28 -0700 IronPort-SDR: W70FpfbFGXv4Y15djW/k2nA39A02axB8Ze4UMVrqXxjarL2+9R+SQnaYfuJDlmdIsDLkTx6wbH 3IID+bCEHg/w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,323,1583222400"; d="scan'208";a="431673902" Received: from brentlu-desk0.itwn.intel.com ([10.5.253.11]) by orsmga005.jf.intel.com with ESMTP; 27 Apr 2020 01:43:26 -0700 From: Brent Lu To: alsa-devel@alsa-project.org Subject: [PATCH 1/3] ASoC: bdw-rt5677: channel constraint support Date: Mon, 27 Apr 2020 16:37:16 +0800 Message-Id: <1587976638-29806-2-git-send-email-brent.lu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1587976638-29806-1-git-send-email-brent.lu@intel.com> References: <1587976638-29806-1-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 stereo capture and playback. Implement a constraint to enforce it. Signed-off-by: Brent Lu --- sound/soc/intel/boards/bdw-rt5677.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/sound/soc/intel/boards/bdw-rt5677.c b/sound/soc/intel/boards/bdw-rt5677.c index cc41a34..7963cae 100644 --- a/sound/soc/intel/boards/bdw-rt5677.c +++ b/sound/soc/intel/boards/bdw-rt5677.c @@ -22,6 +22,8 @@ #include "../../codecs/rt5677.h" +#define DUAL_CHANNEL 2 + struct bdw_rt5677_priv { struct gpio_desc *gpio_hp_en; struct snd_soc_component *component; @@ -222,6 +224,36 @@ static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd) } #endif +static const unsigned int channels[] = { + DUAL_CHANNEL, +}; + +static const struct snd_pcm_hw_constraint_list constraints_channels = { + .count = ARRAY_SIZE(channels), + .list = channels, + .mask = 0, +}; + +static int bdw_fe_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + /* + * On this platform for PCM device we support, + * stereo audio + */ + + runtime->hw.channels_max = DUAL_CHANNEL; + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); + + return 0; +} + +static const struct snd_soc_ops bdw_rt5677_fe_ops = { + .startup = bdw_fe_startup, +}; + static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd) { struct bdw_rt5677_priv *bdw_rt5677 = @@ -321,6 +353,7 @@ static struct snd_soc_dai_link bdw_rt5677_dais[] = { }, .dpcm_capture = 1, .dpcm_playback = 1, + .ops = &bdw_rt5677_fe_ops, SND_SOC_DAILINK_REG(fe, dummy, platform), }, -- 2.7.4