From patchwork Sat Jun 30 17:22:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jerome Brunet X-Patchwork-Id: 140687 Delivered-To: patch@linaro.org Received: by 2002:a2e:9754:0:0:0:0:0 with SMTP id f20-v6csp2186475ljj; Sat, 30 Jun 2018 10:22:59 -0700 (PDT) X-Google-Smtp-Source: AAOMgpd82bxv/mwB2RDG+kVYnDL6+YvxA+Eo9dY9FMuRwAMaodDPKZmYFrCWJautDsKsA7kLcF4c X-Received: by 2002:a63:4203:: with SMTP id p3-v6mr14847843pga.184.1530379379220; Sat, 30 Jun 2018 10:22:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1530379379; cv=none; d=google.com; s=arc-20160816; b=CuL9JrM8ITkExn9qhSFiJqMSC2AckCQGoatVUTi5fAowbJPuKW3SmQC3FTz4y++AU9 Yjc9K2ubd/0a+l/kJ8SiNXHIe55hG/cPjRfuuQIA3n4M0RItdAqWOCdmfR/l4mMD0FYO TSyGqbHmFag0sWqCbzpirJ95fdreM8kqhWn06kS5jER7jmagWq6rQ+5NIgT7AKJld4EQ yI4OEkjK0GKNue13+hT+2qWmcg6yiefMh/Rx0mtUcMxje5Rr6wgu6AHSFvCzK2rkY+SB mE2W9JeMvXVMjAz9kUl8BIqiFd9GMC1AQyzXxSN6tcH/Qu8AtAgmqOoarz/8Ul1uSKM0 WKBQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature:arc-authentication-results; bh=fsd6m5/jf1NYKftQIH165+Sq4V8oS9AKP16X1iBrgJ0=; b=U+nOxwzzJKxvH2I237WxgCEj8TBLZ0le7EPvr6OG1Eqlkzg9ExDpz0AalfiH/cGuXo KIEY7hpXfBLNjmk6z7AW338QIZH89cqRoujbhKHnB8IcqzsJVRdmNGlTc3KIbKyWXPIL X8LRcR14fnzajtBHVGj6kofLpedmpEIpgVZxI1VWnCb36U5vcKB1SUFvzmrQqYi4si/W qYok2kXs0K42vR3B3LRuwmIc7ICup8OnNfHG+GpCD65GLhwMsD0ZeiLNaeKKGTpnuo58 0d/S/DQErPvyfjle3lhl8gBCn0yfRG4jyk45oU+N5lquyYGtnCuNaAmPD+us3hB72uQ/ bOlQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@baylibre-com.20150623.gappssmtp.com header.s=20150623 header.b=Fiy3ONr0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. 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[82.243.161.21]) by smtp.googlemail.com with ESMTPSA id h1-v6sm16854885wri.90.2018.06.30.10.22.47 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sat, 30 Jun 2018 10:22:47 -0700 (PDT) From: Jerome Brunet To: Liam Girdwood , Mark Brown Cc: Jerome Brunet , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] ASoC: es7241: add dt-bindings documentation for the es7241 adc Date: Sat, 30 Jun 2018 19:22:40 +0200 Message-Id: <20180630172241.10806-2-jbrunet@baylibre.com> X-Mailer: git-send-email 2.14.4 In-Reply-To: <20180630172241.10806-1-jbrunet@baylibre.com> References: <20180630172241.10806-1-jbrunet@baylibre.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Jerome Brunet --- .../devicetree/bindings/sound/everest,es7241.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/everest,es7241.txt -- 2.14.4 diff --git a/Documentation/devicetree/bindings/sound/everest,es7241.txt b/Documentation/devicetree/bindings/sound/everest,es7241.txt new file mode 100644 index 000000000000..adee52281b3c --- /dev/null +++ b/Documentation/devicetree/bindings/sound/everest,es7241.txt @@ -0,0 +1,23 @@ +ES7134 i2s DA converter + +Required properties: +- compatible : "everest,es7241" + +Optional properties: +- VDDP-supply: regulator phandle for the VDDA supply +- VDDA-supply: regulator phandle for the VDDP supply +- VDDD-supply: regulator phandle for the VDDD supply +- reset-gpios: gpio connected to the reset pin +- m0-gpios : gpio connected to the m0 pin +- m1-gpios : gpio connected to the m1 pin + +Example: + +linein: audio-codec@2 { + #sound-dai-cells = <0>; + compatible = "everest,es7241"; + VDDA-supply = <&vcc_3v3>; + VDDP-supply = <&vcc_3v3>; + VDDD-supply = <&vcc_3v3>; + reset-gpios = <&gpio GPIOH_42>; +}; From patchwork Sat Jun 30 17:22:41 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jerome Brunet X-Patchwork-Id: 140688 Delivered-To: patch@linaro.org Received: by 2002:a2e:9754:0:0:0:0:0 with SMTP id f20-v6csp2186631ljj; Sat, 30 Jun 2018 10:23:09 -0700 (PDT) X-Google-Smtp-Source: AAOMgpcx9LJHcwbbwqSAp9hVP9RIJee+XaREcmS7+ZzETiKcOFc6KWHwK9ugQFv7wqyOrDTE9uyx X-Received: by 2002:a62:152:: with SMTP id 79-v6mr16180316pfb.74.1530379389700; Sat, 30 Jun 2018 10:23:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1530379389; cv=none; d=google.com; s=arc-20160816; b=vsuGHmw7t2JokpX1GrAuNzzmEAhtsXwPRDwxL0Ocgrycbvx+oMF8UNc0ZUPkmDFcjO MHbsCv9RBycIohB6jfMiLPSygbLBxtxXPsMLTIwopc1fv8Ul8Z065SSkVIqtn6knW7Ws SBHAjn20CLelnrK7oRcipgsy36pllPX4tyu7GukqyK2NMkYMfPhMgoMoME6hErXDAc+m uN0Fym3PM8o7Xbj9bpvEyL9f/MP7xqWDQNcW6CwAPdE0aTmN2thBlMhW23os/Tog/5uR T7Ul8UJmNTGwPzHSPxSVab+vFbCqDBxyZ9GOn6t2NvVZbQDho2EzO4/LMpvC5FVrATy6 +zuw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature:arc-authentication-results; bh=FcJVHpmuHjOsZzXO/lpDHPoibDXGsuXvccJlC4tJ50U=; b=wxOJQM5KD/bqdyG8c73r3ooW8Cjy/RI4/y6cNFb7pgr4DvSJ1xbj48fcFdS7yTlXcw coQxgeVquqwK44HK1HrQ0okProQGtKI2V8PeD2b6yUZXVTJnl01CSkPKr/uwWBjh0tdZ lpZeNDQ/sAyA0QMX0Hax/yS8wqGVytThz8dJKevmbAKVt54SWLY2TxqRtK9NBY1IZAxf BX7YSdnd2WJKw/a4kPvBJfS1UXPTrIwP8vFeiWhchgiWGntgtAJaGXPubLomUJjMLfJl UtBryGabgqC2DhW/G5hen/WMnDFOuKtGG9TWkWxZ5JIDrwn5l8D9nXmhkkYpc0Gn0Bzq N6ZA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@baylibre-com.20150623.gappssmtp.com header.s=20150623 header.b=U6CbwVHk; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. 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[82.243.161.21]) by smtp.googlemail.com with ESMTPSA id h1-v6sm16854885wri.90.2018.06.30.10.22.48 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sat, 30 Jun 2018 10:22:49 -0700 (PDT) From: Jerome Brunet To: Liam Girdwood , Mark Brown Cc: Jerome Brunet , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2] ASoC: es7241: add es7241 codec support Date: Sat, 30 Jun 2018 19:22:41 +0200 Message-Id: <20180630172241.10806-3-jbrunet@baylibre.com> X-Mailer: git-send-email 2.14.4 In-Reply-To: <20180630172241.10806-1-jbrunet@baylibre.com> References: <20180630172241.10806-1-jbrunet@baylibre.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for the everest es7241 which is a simple 2 channels analog to digital converter. Signed-off-by: Jerome Brunet --- sound/soc/codecs/Kconfig | 4 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/es7241.c | 308 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 314 insertions(+) create mode 100644 sound/soc/codecs/es7241.c -- 2.14.4 diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index f5839eeeed5e..047ac28ba40f 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -79,6 +79,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_ES8328_SPI if SPI_MASTER select SND_SOC_ES8328_I2C if I2C select SND_SOC_ES7134 + select SND_SOC_ES7241 select SND_SOC_GTM601 select SND_SOC_HDAC_HDMI select SND_SOC_ICS43432 @@ -584,6 +585,9 @@ config SND_SOC_HDMI_CODEC config SND_SOC_ES7134 tristate "Everest Semi ES7134 CODEC" +config SND_SOC_ES7241 + tristate "Everest Semi ES7241 CODEC" + config SND_SOC_ES8316 tristate "Everest Semi ES8316 CODEC" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 6cc15d1c5767..719653a4c882 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -71,6 +71,7 @@ snd-soc-da732x-objs := da732x.o snd-soc-da9055-objs := da9055.o snd-soc-dmic-objs := dmic.o snd-soc-es7134-objs := es7134.o +snd-soc-es7241-objs := es7241.o snd-soc-es8316-objs := es8316.o snd-soc-es8328-objs := es8328.o snd-soc-es8328-i2c-objs := es8328-i2c.o @@ -329,6 +330,7 @@ obj-$(CONFIG_SND_SOC_DA732X) += snd-soc-da732x.o obj-$(CONFIG_SND_SOC_DA9055) += snd-soc-da9055.o obj-$(CONFIG_SND_SOC_DMIC) += snd-soc-dmic.o obj-$(CONFIG_SND_SOC_ES7134) += snd-soc-es7134.o +obj-$(CONFIG_SND_SOC_ES7241) += snd-soc-es7241.o obj-$(CONFIG_SND_SOC_ES8316) += snd-soc-es8316.o obj-$(CONFIG_SND_SOC_ES8328) += snd-soc-es8328.o obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o diff --git a/sound/soc/codecs/es7241.c b/sound/soc/codecs/es7241.c new file mode 100644 index 000000000000..11958671aa80 --- /dev/null +++ b/sound/soc/codecs/es7241.c @@ -0,0 +1,308 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +// +// Copyright (c) 2018 BayLibre, SAS. +// Author: Jerome Brunet + +#include +#include +#include +#include + +struct es7241_clock_mode { + unsigned int rate_min; + unsigned int rate_max; + unsigned int *slv_mfs; + unsigned int slv_mfs_num; + unsigned int mst_mfs; + unsigned int mst_m0:1; + unsigned int mst_m1:1; +}; + +struct es7241_chip { + const struct es7241_clock_mode *modes; + unsigned int mode_num; +}; + +struct es7241_data { + struct gpio_desc *reset; + struct gpio_desc *m0; + struct gpio_desc *m1; + unsigned int mclk; + bool is_slave; + const struct es7241_chip *chip; +}; + +static void es7241_set_mode(struct es7241_data *priv, int m0, int m1) +{ + /* put the device in reset */ + gpiod_set_value_cansleep(priv->reset, 0); + + /* set the mode */ + gpiod_set_value_cansleep(priv->m0, m0); + gpiod_set_value_cansleep(priv->m1, m1); + + /* take the device out of reset - datasheet does not specify a delay */ + gpiod_set_value_cansleep(priv->reset, 1); +} + +static int es7241_set_slave_mode(struct es7241_data *priv, + const struct es7241_clock_mode *mode, + unsigned int mfs) +{ + int j; + + if (!mfs) + goto out_ok; + + for (j = 0; j < mode->slv_mfs_num; j++) { + if (mode->slv_mfs[j] == mfs) + goto out_ok; + } + + return -EINVAL; + +out_ok: + es7241_set_mode(priv, 1, 1); + return 0; +} + +static int es7241_set_master_mode(struct es7241_data *priv, + const struct es7241_clock_mode *mode, + unsigned int mfs) +{ + /* + * We can't really set clock ratio, if the mclk/lrclk is different + * from what we provide, then error out + */ + if (mfs && mfs != mode->mst_mfs) + return -EINVAL; + + es7241_set_mode(priv, mode->mst_m0, mode->mst_m1); + + return 0; +} + +static int es7241_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct es7241_data *priv = snd_soc_dai_get_drvdata(dai); + unsigned int rate = params_rate(params); + unsigned int mfs = priv->mclk / rate; + int i; + + for (i = 0; i < priv->chip->mode_num; i++) { + const struct es7241_clock_mode *mode = &priv->chip->modes[i]; + + if (rate < mode->rate_min || rate >= mode->rate_max) + continue; + + if (priv->is_slave) + return es7241_set_slave_mode(priv, mode, mfs); + else + return es7241_set_master_mode(priv, mode, mfs); + } + + /* should not happen */ + dev_err(dai->dev, "unsupported rate: %u\n", rate); + return -EINVAL; +} + +static int es7241_set_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct es7241_data *priv = snd_soc_dai_get_drvdata(dai); + + if (dir == SND_SOC_CLOCK_IN && clk_id == 0) { + priv->mclk = freq; + return 0; + } + + return -ENOTSUPP; +} + +static int es7241_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct es7241_data *priv = snd_soc_dai_get_drvdata(dai); + + if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) { + dev_err(dai->dev, "Unsupported dai clock inversion\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + case SND_SOC_DAIFMT_LEFT_J: + break; + + default: + dev_err(dai->dev, "Unsupported dai format\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + priv->is_slave = true; + break; + case SND_SOC_DAIFMT_CBM_CFM: + priv->is_slave = false; + break; + + default: + dev_err(dai->dev, "Unsupported clock configuration\n"); + return -EINVAL; + } + + return 0; +} + +static const struct snd_soc_dai_ops es7241_dai_ops = { + .set_fmt = es7241_set_fmt, + .hw_params = es7241_hw_params, + .set_sysclk = es7241_set_sysclk, +}; + +static struct snd_soc_dai_driver es7241_dai = { + .name = "es7241-hifi", + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = (SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_3LE | + SNDRV_PCM_FMTBIT_S24_LE), + }, + .ops = &es7241_dai_ops, +}; + +static const struct es7241_clock_mode es7241_modes[] = { + { + /* Single speed mode */ + .rate_min = 8000, + .rate_max = 50000, + .slv_mfs = (unsigned int[]) { 256, 384, 512, 768, 1024 }, + .slv_mfs_num = 5, + .mst_mfs = 256, + .mst_m0 = 0, + .mst_m1 = 0, + }, { + /* Double speed mode */ + .rate_min = 50000, + .rate_max = 100000, + .slv_mfs = (unsigned int[]) { 128, 192 }, + .slv_mfs_num = 2, + .mst_mfs = 128, + .mst_m0 = 1, + .mst_m1 = 0, + }, { + /* Quad speed mode */ + .rate_min = 100000, + .rate_max = 200000, + .slv_mfs = (unsigned int[]) { 64 }, + .slv_mfs_num = 1, + .mst_mfs = 64, + .mst_m0 = 0, + .mst_m1 = 1, + }, +}; + +static const struct es7241_chip es7241_chip = { + .modes = es7241_modes, + .mode_num = ARRAY_SIZE(es7241_modes), +}; + +static const struct snd_soc_dapm_widget es7241_dapm_widgets[] = { + SND_SOC_DAPM_INPUT("AINL"), + SND_SOC_DAPM_INPUT("AINR"), + SND_SOC_DAPM_DAC("ADC", "Capture", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_REGULATOR_SUPPLY("VDDP", 0, 0), + SND_SOC_DAPM_REGULATOR_SUPPLY("VDDD", 0, 0), + SND_SOC_DAPM_REGULATOR_SUPPLY("VDDA", 0, 0), +}; + +static const struct snd_soc_dapm_route es7241_dapm_routes[] = { + { "ADC", NULL, "AINL", }, + { "ADC", NULL, "AINR", }, + { "ADC", NULL, "VDDA", }, + { "Capture", NULL, "VDDP", }, + { "Capture", NULL, "VDDD", }, +}; + +static const struct snd_soc_component_driver es7241_component_driver = { + .dapm_widgets = es7241_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(es7241_dapm_widgets), + .dapm_routes = es7241_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(es7241_dapm_routes), + .idle_bias_on = 1, + .endianness = 1, + .non_legacy_dai_naming = 1, +}; + +static int es7241_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct es7241_data *priv; + int err; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + platform_set_drvdata(pdev, priv); + + priv->chip = of_device_get_match_data(dev); + if (!priv->chip) { + dev_err(dev, "failed to match device\n"); + return -ENODEV; + } + + priv->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(priv->reset)) { + err = PTR_ERR(priv->reset); + if (err != -EPROBE_DEFER) + dev_err(dev, "Failed to get 'reset' gpio: %d", err); + return err; + } + + priv->m0 = devm_gpiod_get_optional(dev, "m0", GPIOD_OUT_LOW); + if (IS_ERR(priv->m0)) { + err = PTR_ERR(priv->m0); + if (err != -EPROBE_DEFER) + dev_err(dev, "Failed to get 'm0' gpio: %d", err); + return err; + } + + priv->m1 = devm_gpiod_get_optional(dev, "m1", GPIOD_OUT_LOW); + if (IS_ERR(priv->m1)) { + err = PTR_ERR(priv->m1); + if (err != -EPROBE_DEFER) + dev_err(dev, "Failed to get 'm1' gpio: %d", err); + return err; + } + + return devm_snd_soc_register_component(&pdev->dev, + &es7241_component_driver, + &es7241_dai, 1); +} + +#ifdef CONFIG_OF +static const struct of_device_id es7241_ids[] = { + { .compatible = "everest,es7241", .data = &es7241_chip }, + { } +}; +MODULE_DEVICE_TABLE(of, es7241_ids); +#endif + +static struct platform_driver es7241_driver = { + .driver = { + .name = "es7241", + .of_match_table = of_match_ptr(es7241_ids), + }, + .probe = es7241_probe, +}; + +module_platform_driver(es7241_driver); + +MODULE_DESCRIPTION("ASoC ES7241 audio codec driver"); +MODULE_AUTHOR("Jerome Brunet "); +MODULE_LICENSE("GPL");