From patchwork Mon Mar 6 10:46:51 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 104482 Delivered-To: patch@linaro.org Received: by 10.140.82.71 with SMTP id g65csp1324976qgd; Mon, 6 Mar 2017 02:49:38 -0800 (PST) X-Received: by 10.28.129.83 with SMTP id c80mr12533189wmd.82.1488797378489; Mon, 06 Mar 2017 02:49:38 -0800 (PST) Return-Path: Received: from alsa0.perex.cz (alsa0.perex.cz. [77.48.224.243]) by mx.google.com with ESMTP id i4si14095016wme.78.2017.03.06.02.49.38; Mon, 06 Mar 2017 02:49:38 -0800 (PST) Received-SPF: pass (google.com: domain of alsa-devel-bounces@alsa-project.org designates 77.48.224.243 as permitted sender) client-ip=77.48.224.243; Authentication-Results: mx.google.com; spf=pass (google.com: domain of alsa-devel-bounces@alsa-project.org designates 77.48.224.243 as permitted sender) smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 0DBA1266F27; Mon, 6 Mar 2017 11:48:31 +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 66862266F11; Mon, 6 Mar 2017 11:48:27 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail1.perex.cz X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RP_MATCHES_RCVD, SPF_PASS, URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from mezzanine.sirena.org.uk (mezzanine.sirena.org.uk [106.187.55.193]) by alsa0.perex.cz (Postfix) with ESMTP id 441F9266DCD for ; Mon, 6 Mar 2017 11:47:22 +0100 (CET) Received: from [109.74.48.129] (helo=finisterre) by mezzanine.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1ckqAJ-0006yn-WB; Mon, 06 Mar 2017 10:46:58 +0000 Received: from broonie by finisterre with local (Exim 4.89) (envelope-from ) id 1ckqAF-0002Vx-W7; Mon, 06 Mar 2017 11:46:52 +0100 From: Mark Brown To: Romain Perier In-Reply-To: <20170224160104.29354-3-romain.perier@collabora.com> Message-Id: Date: Mon, 06 Mar 2017 11:46:51 +0100 X-SA-Exim-Connect-IP: 109.74.48.129 X-SA-Exim-Mail-From: broonie@sirena.org.uk X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: No (on mezzanine.sirena.org.uk); Unknown failure Cc: alsa-devel@alsa-project.org, Heiko Stuebner , Takashi Iwai , Liam Girdwood , linux-rockchip@lists.infradead.org, Sjoerd Simons , Mark Brown Subject: [alsa-devel] Applied "ASoC: es8328: Let device auto detect ratios in slave mode" to the asoc tree 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: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org The patch ASoC: es8328: Let device auto detect ratios in slave mode has been applied to the asoc tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From ae884ae78a238c36e4abfdb53d4659d5fca67433 Mon Sep 17 00:00:00 2001 From: Romain Perier Date: Wed, 1 Mar 2017 10:11:05 +0100 Subject: [PATCH] ASoC: es8328: Let device auto detect ratios in slave mode In master mode, SCLK and LRCLK signals are generated by the CODEC when any of the ADC/DAC are enabled. SCLK is derived from MCLK via a programmable division set by BLK_DIV, LRCLK is derived from MCLK via another programmable division set by ADCFsRatio/DACFsRatio. In slave mode, SCLK and LRCLK signals are received as inputs and supplied externally. LRCLK and SCLK must be synchronously derived from MCLK with specific rates. The device can auto detect MCLK/LRCLK ratio according to a predefined table. LRCLK/SCLK ratio is usually 64 (SCLK = 64 * LRCLK) This commits adds support to let to device auto detect and decide which ratio to use. The mclkdiv2 and BCLK_DIV ratio and put to zero. Signed-off-by: Romain Perier Signed-off-by: Mark Brown --- sound/soc/codecs/es8328.c | 39 +++++++++++++++++++++++++-------------- 1 file changed, 25 insertions(+), 14 deletions(-) -- 2.11.0 _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c index 3f84fbd071e2..51dca8662942 100644 --- a/sound/soc/codecs/es8328.c +++ b/sound/soc/codecs/es8328.c @@ -91,6 +91,7 @@ struct es8328_priv { int mclkdiv2; const struct snd_pcm_hw_constraint_list *sysclk_constraints; const int *mclk_ratios; + bool master; struct regulator_bulk_data supplies[ES8328_SUPPLY_NUM]; }; @@ -469,7 +470,7 @@ static int es8328_startup(struct snd_pcm_substream *substream, struct snd_soc_codec *codec = dai->codec; struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); - if (es8328->sysclk_constraints) + if (es8328->master && es8328->sysclk_constraints) snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, es8328->sysclk_constraints); @@ -488,27 +489,34 @@ static int es8328_hw_params(struct snd_pcm_substream *substream, int wl; int ratio; - if (!es8328->sysclk_constraints) { - dev_err(codec->dev, "No MCLK configured\n"); - return -EINVAL; - } - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) reg = ES8328_DACCONTROL2; else reg = ES8328_ADCCONTROL5; - for (i = 0; i < es8328->sysclk_constraints->count; i++) - if (es8328->sysclk_constraints->list[i] == params_rate(params)) - break; + if (es8328->master) { + if (!es8328->sysclk_constraints) { + dev_err(codec->dev, "No MCLK configured\n"); + return -EINVAL; + } - if (i == es8328->sysclk_constraints->count) { - dev_err(codec->dev, "LRCLK %d unsupported with current clock\n", - params_rate(params)); - return -EINVAL; + for (i = 0; i < es8328->sysclk_constraints->count; i++) + if (es8328->sysclk_constraints->list[i] == + params_rate(params)) + break; + + if (i == es8328->sysclk_constraints->count) { + dev_err(codec->dev, + "LRCLK %d unsupported with current clock\n", + params_rate(params)); + return -EINVAL; + } + ratio = es8328->mclk_ratios[i]; + } else { + ratio = 0; + es8328->mclkdiv2 = 0; } - ratio = es8328->mclk_ratios[i]; snd_soc_update_bits(codec, ES8328_MASTERMODE, ES8328_MASTERMODE_MCLKDIV2, es8328->mclkdiv2 ? ES8328_MASTERMODE_MCLKDIV2 : 0); @@ -586,6 +594,7 @@ static int es8328_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; + struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); u8 dac_mode = 0; u8 adc_mode = 0; @@ -595,11 +604,13 @@ static int es8328_set_dai_fmt(struct snd_soc_dai *codec_dai, snd_soc_update_bits(codec, ES8328_MASTERMODE, ES8328_MASTERMODE_MSC, ES8328_MASTERMODE_MSC); + es8328->master = true; break; case SND_SOC_DAIFMT_CBS_CFS: /* Slave serial port mode */ snd_soc_update_bits(codec, ES8328_MASTERMODE, ES8328_MASTERMODE_MSC, 0); + es8328->master = false; break; default: return -EINVAL;