From patchwork Mon Apr 27 17:13:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brent Lu X-Patchwork-Id: 11513017 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7EB0F15AB for ; Mon, 27 Apr 2020 17:21:00 +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 8F64B20728 for ; Mon, 27 Apr 2020 17:20:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="LvuutCLi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F64B20728 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 A76D9167E; Mon, 27 Apr 2020 19:20:00 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A76D9167E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1588008052; bh=2hGgR+Vn1tbJY41BKAe5uMNh0xtH3oCoq7fcWgC/WN8=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=LvuutCLiZlS0br7ers1ushVMfP9ky9mctHis1mZdnhXViV1bk3skiTCd1i7R7XXPh X5AoFrLtOb25xp28ZEhf00S8dZOQyjKjN1slmrAdj7gudqhgrZnOznTUkModqhoEqA BLJRF+gwdzVeUcO+2TB/VNzi68p2+QORB32/MyDU= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 65456F8022B; Mon, 27 Apr 2020 19:19:58 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5C662F80113; Mon, 27 Apr 2020 19:19:52 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=disabled version=3.4.0 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 BE7E2F80113 for ; Mon, 27 Apr 2020 19:19:47 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz BE7E2F80113 IronPort-SDR: TJHq7tCaxjbEpNRWCOkmlzbmz+sbAo3pNvd5pq0fpulyQNncYuGt1+1FnpJRQdwrudXMQCh3iN ymr6JUuJ2hnw== 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 10:19:44 -0700 IronPort-SDR: 7x+DqS0p6CcaWJ/Cv1lcV6Ed/gksC/EqyUwzT6uz8SjWGM6zxoDs1Kcr2QdeczYir23wssxVvd sz9Atbo6dP0A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,324,1583222400"; d="scan'208";a="458932321" Received: from brentlu-desk0.itwn.intel.com ([10.5.253.11]) by fmsmga006.fm.intel.com with ESMTP; 27 Apr 2020 10:19:42 -0700 From: Brent Lu To: alsa-devel@alsa-project.org Subject: [PATCH v2 1/3] ASoC: bdw-rt5677: add channel constraint Date: Tue, 28 Apr 2020 01:13:32 +0800 Message-Id: <1588007614-25061-2-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 stereo capture and playback. Implement a constraint to enforce it. Signed-off-by: Brent Lu --- sound/soc/intel/boards/bdw-rt5677.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/sound/soc/intel/boards/bdw-rt5677.c b/sound/soc/intel/boards/bdw-rt5677.c index cc41a34..5f96d7a 100644 --- a/sound/soc/intel/boards/bdw-rt5677.c +++ b/sound/soc/intel/boards/bdw-rt5677.c @@ -222,6 +222,31 @@ static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd) } #endif +static const unsigned int channels[] = { + 2, +}; + +static const struct snd_pcm_hw_constraint_list constraints_channels = { + .count = ARRAY_SIZE(channels), + .list = channels, + .mask = 0, +}; + +static int bdw_rt5677_fe_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + /* Board supports stereo configuration only */ + runtime->hw.channels_max = 2; + return snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); +} + +static const struct snd_soc_ops bdw_rt5677_fe_ops = { + .startup = bdw_rt5677_fe_startup, +}; + static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd) { struct bdw_rt5677_priv *bdw_rt5677 = @@ -321,6 +346,7 @@ 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), },