From patchwork Tue Sep 15 13:57:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 11776723 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 C055D59D for ; Tue, 15 Sep 2020 14:04:52 +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 2EF3D22207 for ; Tue, 15 Sep 2020 14:04:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="lA+AxoYK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2EF3D22207 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.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 EDF55844; Tue, 15 Sep 2020 16:04:03 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz EDF55844 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1600178688; bh=blNEo8pdPU+m6w0nUBK4TFNvZxerRjUMtVE/X+N26kU=; h=From:To:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=lA+AxoYKkLscjwmCB3yo7aet7SknCgzLC5PHC+w9FARISCqw6B0ZbPB+/ujEfEFqr xlwYj+ZZkIPZIZdi4FnL6Blcb0eYdBJu3yYaa52cgBUjpqwSbXZKOIdueYuGgrieub k2TciZvSLEvlqTBmT8dNlwgg0aEC5kxP9v2Ghc1E= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 6A40CF80159; Tue, 15 Sep 2020 16:04:03 +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 7B29BF80276; Tue, 15 Sep 2020 16:03:59 +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 inva020.nxp.com (inva020.nxp.com [92.121.34.13]) (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 5C0EAF800F1 for ; Tue, 15 Sep 2020 16:03:49 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 5C0EAF800F1 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id BD1B51A0933; Tue, 15 Sep 2020 16:03:48 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id E0A821A0948; Tue, 15 Sep 2020 16:03:44 +0200 (CEST) Received: from 10.192.242.69 (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id EDC1C402BF; Tue, 15 Sep 2020 16:03:39 +0200 (CEST) From: Shengjiu Wang To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 2/2] ASoC: ak4458: Add DSD support for ak4458 and ak4497 Date: Tue, 15 Sep 2020 21:57:00 +0800 Message-Id: <1600178220-28973-2-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1600178220-28973-1-git-send-email-shengjiu.wang@nxp.com> References: <1600178220-28973-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP 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" Ak4458 can't support DSD512 format, but ak4497 can, so add a new enum variable (enum ak4458_type) in ak4458_drvdata to distinguish these two platforms. Ak4497 has two kinds of DSD input pin, it can be selected by the dsd-path property from DT. In hw_params(), bit clock is calculated according to different DSD format (DSD64, DSD128, DSD256, DSD512), then registers are configured. Signed-off-by: Shengjiu Wang --- changes in v3 - remove kcontrol - add dsd-path property for selecting DSD input pin. changes in v2 - add more commit description sound/soc/codecs/ak4458.c | 89 ++++++++++++++++++++++++++++++++++++--- sound/soc/codecs/ak4458.h | 5 ++- 2 files changed, 86 insertions(+), 8 deletions(-) diff --git a/sound/soc/codecs/ak4458.c b/sound/soc/codecs/ak4458.c index 763e6839428f..1010c9ee2e83 100644 --- a/sound/soc/codecs/ak4458.c +++ b/sound/soc/codecs/ak4458.c @@ -28,14 +28,21 @@ static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = { "AVDD", }; +enum ak4458_type { + AK4458 = 0, + AK4497 = 1, +}; + struct ak4458_drvdata { struct snd_soc_dai_driver *dai_drv; const struct snd_soc_component_driver *comp_drv; + enum ak4458_type type; }; /* AK4458 Codec Private Data */ struct ak4458_priv { struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES]; + const struct ak4458_drvdata *drvdata; struct device *dev; struct regmap *regmap; struct gpio_desc *reset_gpiod; @@ -45,6 +52,7 @@ struct ak4458_priv { int fmt; int slots; int slot_width; + u32 dsd_path; /* For ak4497 */ }; static const struct reg_default ak4458_reg_defaults[] = { @@ -325,12 +333,54 @@ static int ak4458_hw_params(struct snd_pcm_substream *substream, struct snd_soc_component *component = dai->component; struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); int pcm_width = max(params_physical_width(params), ak4458->slot_width); - int nfs1; - u8 format; + u8 format, dsdsel0, dsdsel1; + int nfs1, dsd_bclk; nfs1 = params_rate(params); ak4458->fs = nfs1; + /* calculate bit clock */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_DSD_U8: + case SNDRV_PCM_FORMAT_DSD_U16_LE: + case SNDRV_PCM_FORMAT_DSD_U16_BE: + case SNDRV_PCM_FORMAT_DSD_U32_LE: + case SNDRV_PCM_FORMAT_DSD_U32_BE: + dsd_bclk = nfs1 * params_physical_width(params); + switch (dsd_bclk) { + case 2822400: + dsdsel0 = 0; + dsdsel1 = 0; + break; + case 5644800: + dsdsel0 = 1; + dsdsel1 = 0; + break; + case 11289600: + dsdsel0 = 0; + dsdsel1 = 1; + break; + case 22579200: + if (ak4458->drvdata->type == AK4497) { + dsdsel0 = 1; + dsdsel1 = 1; + } else { + dev_err(dai->dev, "DSD512 not supported.\n"); + return -EINVAL; + } + break; + default: + dev_err(dai->dev, "Unsupported dsd bclk.\n"); + return -EINVAL; + } + + snd_soc_component_update_bits(component, AK4458_06_DSD1, + AK4458_DSDSEL_MASK, dsdsel0); + snd_soc_component_update_bits(component, AK4458_09_DSD2, + AK4458_DSDSEL_MASK, dsdsel1); + break; + } + /* Master Clock Frequency Auto Setting Mode Enable */ snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 0x80, 0x80); @@ -355,6 +405,9 @@ static int ak4458_hw_params(struct snd_pcm_substream *substream, case SND_SOC_DAIFMT_DSP_B: format = AK4458_DIF_32BIT_MSB; break; + case SND_SOC_DAIFMT_PDM: + format = AK4458_DIF_32BIT_MSB; + break; default: return -EINVAL; } @@ -393,6 +446,7 @@ static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) case SND_SOC_DAIFMT_LEFT_J: case SND_SOC_DAIFMT_RIGHT_J: case SND_SOC_DAIFMT_DSP_B: + case SND_SOC_DAIFMT_PDM: ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; break; default: @@ -401,6 +455,12 @@ static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) return -EINVAL; } + /* DSD mode */ + snd_soc_component_update_bits(component, AK4458_02_CONTROL3, + AK4458_DP_MASK, + ak4458->fmt == SND_SOC_DAIFMT_PDM ? + AK4458_DP_MASK : 0); + ak4458_rstn_control(component, 0); ak4458_rstn_control(component, 1); @@ -472,7 +532,10 @@ static int ak4458_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, #define AK4458_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ SNDRV_PCM_FMTBIT_S24_LE |\ - SNDRV_PCM_FMTBIT_S32_LE) + SNDRV_PCM_FMTBIT_S32_LE |\ + SNDRV_PCM_FMTBIT_DSD_U8 |\ + SNDRV_PCM_FMTBIT_DSD_U16_LE |\ + SNDRV_PCM_FMTBIT_DSD_U32_LE) static const unsigned int ak4458_rates[] = { 8000, 11025, 16000, 22050, @@ -564,6 +627,13 @@ static int ak4458_init(struct snd_soc_component *component) if (ret < 0) return ret; + if (ak4458->drvdata->type == AK4497) { + ret = snd_soc_component_update_bits(component, AK4458_09_DSD2, + 0x4, (ak4458->dsd_path << 2)); + if (ret < 0) + return ret; + } + return ak4458_rstn_control(component, 1); } @@ -668,11 +738,13 @@ static const struct regmap_config ak4458_regmap = { static const struct ak4458_drvdata ak4458_drvdata = { .dai_drv = &ak4458_dai, .comp_drv = &soc_codec_dev_ak4458, + .type = AK4458, }; static const struct ak4458_drvdata ak4497_drvdata = { .dai_drv = &ak4497_dai, .comp_drv = &soc_codec_dev_ak4497, + .type = AK4497, }; static const struct dev_pm_ops ak4458_pm = { @@ -684,7 +756,6 @@ static const struct dev_pm_ops ak4458_pm = { static int ak4458_i2c_probe(struct i2c_client *i2c) { struct ak4458_priv *ak4458; - const struct ak4458_drvdata *drvdata; int ret, i; ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL); @@ -698,7 +769,7 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) i2c_set_clientdata(i2c, ak4458); ak4458->dev = &i2c->dev; - drvdata = of_device_get_match_data(&i2c->dev); + ak4458->drvdata = of_device_get_match_data(&i2c->dev); ak4458->reset_gpiod = devm_gpiod_get_optional(ak4458->dev, "reset", GPIOD_OUT_LOW); @@ -710,6 +781,9 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) if (IS_ERR(ak4458->mute_gpiod)) return PTR_ERR(ak4458->mute_gpiod); + /* Optional property for ak4497 */ + of_property_read_u32(i2c->dev.of_node, "dsd-path", &ak4458->dsd_path); + for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++) ak4458->supplies[i].supply = ak4458_supply_names[i]; @@ -720,8 +794,9 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) return ret; } - ret = devm_snd_soc_register_component(ak4458->dev, drvdata->comp_drv, - drvdata->dai_drv, 1); + ret = devm_snd_soc_register_component(ak4458->dev, + ak4458->drvdata->comp_drv, + ak4458->drvdata->dai_drv, 1); if (ret < 0) { dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret); return ret; diff --git a/sound/soc/codecs/ak4458.h b/sound/soc/codecs/ak4458.h index f906215f7e4e..9548c5d78621 100644 --- a/sound/soc/codecs/ak4458.h +++ b/sound/soc/codecs/ak4458.h @@ -83,4 +83,7 @@ #define AK4458_ATS_SHIFT 6 #define AK4458_ATS_MASK GENMASK(7, 6) -#endif /* _AK4458_H */ +#define AK4458_DSDSEL_MASK (0x1 << 0) +#define AK4458_DP_MASK (0x1 << 7) + +#endif