From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yong Zhi Subject: [PATCH v3 4/5] ASoC: Intel: Skylake: Add channel constraints for refcap Date: Thu, 26 May 2016 21:31:07 -0700 Message-ID: <1464323467-28911-1-git-send-email-yong.zhi@intel.com> References: <1464182357-1305-1-git-send-email-yong.zhi@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by alsa0.perex.cz (Postfix) with ESMTP id D7F5326547F for ; Fri, 27 May 2016 06:28:17 +0200 (CEST) In-Reply-To: <1464182357-1305-1-git-send-email-yong.zhi@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: broonie@kernel.org Cc: alsa-devel@alsa-project.org, srinivas.sripathi@intel.com, vinod.koul@intel.com, yang.a.fang@intel.com, sathya.prakash.m.r@intel.com, jeeja.kp@intel.com, vedang.patel@intel.com, Yong Zhi List-Id: alsa-devel@alsa-project.org Add constraint for ref DMIC to match with the topology firmware configured for machine sklnau8825max. Signed-off-by: Yong Zhi --- sound/soc/intel/boards/skl_nau88l25_max98357a.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/sound/soc/intel/boards/skl_nau88l25_max98357a.c b/sound/soc/intel/boards/skl_nau88l25_max98357a.c index 43fab12..57c3c86 100644 --- a/sound/soc/intel/boards/skl_nau88l25_max98357a.c +++ b/sound/soc/intel/boards/skl_nau88l25_max98357a.c @@ -352,8 +352,22 @@ static struct snd_pcm_hw_constraint_list constraints_16000 = { .list = rates_16000, }; +static const unsigned int ch_mono[] = { + 1, +}; + +static const struct snd_pcm_hw_constraint_list constraints_refcap = { + .count = ARRAY_SIZE(ch_mono), + .list = ch_mono, +}; + static int skylake_refcap_startup(struct snd_pcm_substream *substream) { + substream->runtime->hw.channels_max = 1; + snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_refcap); + return snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_16000); -- 1.9.1