From patchwork Thu Nov 9 14:07:58 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier MOYSAN X-Patchwork-Id: 10051019 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7F08860381 for ; Thu, 9 Nov 2017 14:09:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7202E2AA0F for ; Thu, 9 Nov 2017 14:09:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 661132AC9F; Thu, 9 Nov 2017 14:09:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DF6372AA0F for ; Thu, 9 Nov 2017 14:09:30 +0000 (UTC) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id EFA2C26780D; Thu, 9 Nov 2017 15:09:02 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 345CE2677E4; Thu, 9 Nov 2017 15:09:01 +0100 (CET) Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [62.209.51.94]) by alsa0.perex.cz (Postfix) with ESMTP id 99F80266B80 for ; Thu, 9 Nov 2017 15:08:59 +0100 (CET) Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id vA9DxKsV001523; Thu, 9 Nov 2017 15:08:59 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2e4p118ycg-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 09 Nov 2017 15:08:59 +0100 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 82B4431; Thu, 9 Nov 2017 14:08:58 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas22.st.com [10.75.90.92]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 5A57824A5; Thu, 9 Nov 2017 14:08:58 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.47) by Safex1hubcas22.st.com (10.75.90.92) with Microsoft SMTP Server (TLS) id 14.3.352.0; Thu, 9 Nov 2017 15:08:58 +0100 Received: from localhost (10.201.23.16) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.352.0; Thu, 9 Nov 2017 15:08:57 +0100 From: Olivier Moysan To: , , , , , , , , , , , , , Date: Thu, 9 Nov 2017 15:07:58 +0100 Message-ID: <1510236478-2351-3-git-send-email-olivier.moysan@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1510236478-2351-1-git-send-email-olivier.moysan@st.com> References: <1510236478-2351-1-git-send-email-olivier.moysan@st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.23.16] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-11-09_04:, , signatures=0 Cc: arnaud.pouliquen@st.com, benjamin.gaignard@st.com Subject: [alsa-devel] [PATCH 2/2] ASoC: add mclk-fs support to audio graph card X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP Add mclk-fs support to audio graph card as it was previously implemented in simple card. Signed-off-by: Olivier Moysan --- sound/soc/generic/audio-graph-card.c | 47 ++++++++++++++++++++++++++++++------ 1 file changed, 39 insertions(+), 8 deletions(-) diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index 488c52f..1b61642 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -29,7 +29,9 @@ struct graph_card_data { struct graph_dai_props { struct asoc_simple_dai cpu_dai; struct asoc_simple_dai codec_dai; + unsigned int mclk_fs; } *dai_props; + unsigned int mclk_fs; struct snd_soc_dai_link *dai_link; struct gpio_desc *pa_gpio; }; @@ -95,9 +97,43 @@ static void asoc_graph_card_shutdown(struct snd_pcm_substream *substream) asoc_simple_card_clk_disable(&dai_props->codec_dai); } +static int asoc_graph_card_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); + struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num); + unsigned int mclk, mclk_fs = 0; + int ret = 0; + + if (priv->mclk_fs) + mclk_fs = priv->mclk_fs; + else if (dai_props->mclk_fs) + mclk_fs = dai_props->mclk_fs; + + if (mclk_fs) { + mclk = params_rate(params) * mclk_fs; + ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, + SND_SOC_CLOCK_IN); + if (ret && ret != -ENOTSUPP) + goto err; + + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, + SND_SOC_CLOCK_OUT); + if (ret && ret != -ENOTSUPP) + goto err; + } + return 0; +err: + return ret; +} + static const struct snd_soc_ops asoc_graph_card_ops = { .startup = asoc_graph_card_startup, .shutdown = asoc_graph_card_shutdown, + .hw_params = asoc_graph_card_hw_params, }; static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd) @@ -146,10 +182,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_port, if (ret < 0) goto dai_link_of_err; - /* - * we need to consider "mclk-fs" around here - * see simple-card - */ + of_property_read_u32(rcpu_ep, "mclk-fs", &dai_props->mclk_fs); ret = asoc_simple_card_parse_graph_cpu(cpu_ep, dai_link); if (ret < 0) @@ -217,10 +250,8 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv) if (ret < 0) return ret; - /* - * we need to consider "mclk-fs" around here - * see simple-card - */ + /* Factor to mclk, used in hw_params() */ + of_property_read_u32(node, "mclk-fs", &priv->mclk_fs); of_for_each_phandle(&it, rc, node, "dais", NULL, 0) { ret = asoc_graph_card_dai_link_of(it.node, priv, idx++);