From patchwork Mon Apr 27 08:37:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brent Lu X-Patchwork-Id: 11511593 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 3A49514DD for ; Mon, 27 Apr 2020 08:45:15 +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 C50682098B for ; Mon, 27 Apr 2020 08:45:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="oBMFT9ct" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C50682098B 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 0EEBD167B; Mon, 27 Apr 2020 10:44:25 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 0EEBD167B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1587977113; bh=8IIsnych10kchsgzoDVoCpMMUpV2SC6mwb3g7LxaJYA=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=oBMFT9ctepCZJlNUKmz9J3eD1HBUwpS5YE7eolnlHm/rCwiDE8q6SwQ3GaBxy40Al 07HDEcJmmL6ZOZfQnuVRr+3MdqkAQGSFWThWDJv4hALdmtMe+VryA860IeTfkw3M+C JxhckQLtYjSwp5Dp94tKO8RoQcvlHJKeGPp5x8J4= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 03D12F80112; Mon, 27 Apr 2020 10:43:41 +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 9286DF8023E; Mon, 27 Apr 2020 10:43:37 +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=SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=disabled version=3.4.0 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 E480EF8010A for ; Mon, 27 Apr 2020 10:43:33 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E480EF8010A IronPort-SDR: 2Kj5IkSGgZap5nJRfA9AZv49Fkr59ldNyJJoxEIjBtcx5AoIYmUQNH2AdiJnQVj9n/Tp2cTD0k dWkpgpvgoUYA== 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 01:43:33 -0700 IronPort-SDR: UZM899RdUKJariK3v5QIGo+8aqvUNaMDqIScnewsNP4fHIMFgtHeYBnkFubGWgwuKFfMML4UPf yeQ/7nH49/SQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,323,1583222400"; d="scan'208";a="431673940" Received: from brentlu-desk0.itwn.intel.com ([10.5.253.11]) by orsmga005.jf.intel.com with ESMTP; 27 Apr 2020 01:43:30 -0700 From: Brent Lu To: alsa-devel@alsa-project.org Subject: [PATCH 2/3] ASoC: bdw-rt5650: channel constraint support Date: Mon, 27 Apr 2020 16:37:17 +0800 Message-Id: <1587976638-29806-3-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 2 or 4-channel capture. Implement a constraint to enforce it. Signed-off-by: Brent Lu --- sound/soc/intel/boards/bdw-rt5650.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/sound/soc/intel/boards/bdw-rt5650.c b/sound/soc/intel/boards/bdw-rt5650.c index af2f502..dd4f219 100644 --- a/sound/soc/intel/boards/bdw-rt5650.c +++ b/sound/soc/intel/boards/bdw-rt5650.c @@ -21,6 +21,9 @@ #include "../../codecs/rt5645.h" +#define DUAL_CHANNEL 2 +#define QUAD_CHANNEL 4 + struct bdw_rt5650_priv { struct gpio_desc *gpio_hp_en; struct snd_soc_component *component; @@ -162,6 +165,36 @@ static int bdw_rt5650_rtd_init(struct snd_soc_pcm_runtime *rtd) } #endif +static const unsigned int channels[] = { + DUAL_CHANNEL, QUAD_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, + * 2 or 4 channel capture + */ + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); + + return 0; +} + +static const struct snd_soc_ops bdw_rt5650_fe_ops = { + .startup = bdw_fe_startup, +}; + static int bdw_rt5650_init(struct snd_soc_pcm_runtime *rtd) { struct bdw_rt5650_priv *bdw_rt5650 = @@ -234,6 +267,7 @@ 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