@@ -126,6 +126,14 @@ config SND_SOC_TEGRA_AUDIO_GRAPH_CARD
few things for Tegra audio. Most of the code is re-used from
audio graph driver and the same DT bindings are used.
+config SND_SOC_TEGRA_RT5631
+ tristate "SoC Audio support for Tegra boards using an RT5631 codec"
+ depends on SND_SOC_TEGRA && I2C && GPIOLIB
+ select SND_SOC_RT5631
+ help
+ Say Y or M here if you want to add support for SoC audio on Tegra
+ boards using the RT5631 codec, such as Transformer.
+
config SND_SOC_TEGRA_RT5640
tristate "SoC Audio support for Tegra boards using an RT5640 codec"
depends on SND_SOC_TEGRA && I2C && GPIOLIB
@@ -29,6 +29,7 @@ obj-$(CONFIG_SND_SOC_TEGRA186_DSPK) += snd-soc-tegra186-dspk.o
obj-$(CONFIG_SND_SOC_TEGRA210_ADMAIF) += snd-soc-tegra210-admaif.o
# Tegra machine Support
+snd-soc-tegra-rt5631-objs := tegra_rt5631.o
snd-soc-tegra-rt5640-objs := tegra_rt5640.o
snd-soc-tegra-rt5677-objs := tegra_rt5677.o
snd-soc-tegra-wm8753-objs := tegra_wm8753.o
@@ -41,6 +42,7 @@ snd-soc-tegra-max98090-objs := tegra_max98090.o
snd-soc-tegra-sgtl5000-objs := tegra_sgtl5000.o
snd-soc-tegra-audio-graph-card-objs := tegra_audio_graph_card.o
+obj-$(CONFIG_SND_SOC_TEGRA_RT5631) += snd-soc-tegra-rt5631.o
obj-$(CONFIG_SND_SOC_TEGRA_RT5640) += snd-soc-tegra-rt5640.o
obj-$(CONFIG_SND_SOC_TEGRA_RT5677) += snd-soc-tegra-rt5677.o
obj-$(CONFIG_SND_SOC_TEGRA_WM8753) += snd-soc-tegra-wm8753.o
new file mode 100644
@@ -0,0 +1,261 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tegra_rt5631.c - Tegra machine ASoC driver for boards using RT5631 codec.
+ *
+ * Copyright (c) 2020, Svyatoslav Ryhel and Ion Agorria
+ *
+ * Based on code copyright/by:
+ *
+ * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
+ * Author: Stephen Warren <swarren@nvidia.com>
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "tegra_asoc_utils.h"
+
+#include "../codecs/rt5631.h"
+
+struct tegra_rt5631 {
+ struct tegra_asoc_utils_data util_data;
+ struct gpio_desc *gpiod_hp_mute;
+ struct gpio_desc *gpiod_hp_det;
+};
+
+static int tegra_rt5631_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 = asoc_rtd_to_codec(rtd, 0);
+ struct snd_soc_card *card = rtd->card;
+ struct tegra_rt5631 *machine = snd_soc_card_get_drvdata(card);
+ unsigned int srate, mclk;
+ int err;
+
+ srate = params_rate(params);
+ switch (srate) {
+ case 64000:
+ case 88200:
+ case 96000:
+ mclk = 128 * srate;
+ break;
+ default:
+ mclk = 256 * srate;
+ break;
+ }
+ /* FIXME: Codec only requires >= 3MHz if OSR==0 */
+ while (mclk < 6000000)
+ mclk *= 2;
+
+ err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+ if (err < 0) {
+ dev_err(card->dev, "Can't configure clocks\n");
+ return err;
+ }
+
+ err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, SND_SOC_CLOCK_IN);
+ if (err < 0) {
+ dev_err(card->dev, "codec_dai clock not set\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_ops tegra_rt5631_ops = {
+ .hw_params = tegra_rt5631_hw_params,
+};
+
+static struct snd_soc_jack tegra_rt5631_hp_jack;
+
+static struct snd_soc_jack_pin tegra_rt5631_hp_jack_pins[] = {
+ {
+ .pin = "Headphone Jack",
+ .mask = SND_JACK_HEADPHONE,
+ },
+};
+
+static struct snd_soc_jack_gpio tegra_rt5631_hp_jack_gpio = {
+ .name = "Headphone detection",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 150,
+};
+
+static int tegra_rt5631_event_hp(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct snd_soc_card *card = dapm->card;
+ struct tegra_rt5631 *machine = snd_soc_card_get_drvdata(card);
+
+ gpiod_set_value_cansleep(machine->gpiod_hp_mute,
+ !SND_SOC_DAPM_EVENT_ON(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget tegra_rt5631_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Int Spk", NULL),
+ SND_SOC_DAPM_HP("Headphone Jack", tegra_rt5631_event_hp),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+ SND_SOC_DAPM_MIC("Int Mic", NULL),
+};
+
+static const struct snd_kcontrol_new tegra_rt5631_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Int Spk"),
+ SOC_DAPM_PIN_SWITCH("Int Mic"),
+};
+
+static int tegra_rt5631_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct tegra_rt5631 *machine = snd_soc_card_get_drvdata(rtd->card);
+ int ret;
+
+ ret = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
+ SND_JACK_HEADPHONE,
+ &tegra_rt5631_hp_jack,
+ tegra_rt5631_hp_jack_pins,
+ ARRAY_SIZE(tegra_rt5631_hp_jack_pins));
+ if (ret) {
+ dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
+ return ret;
+ }
+
+ if (machine->gpiod_hp_det) {
+ tegra_rt5631_hp_jack_gpio.desc = machine->gpiod_hp_det;
+
+ ret = snd_soc_jack_add_gpios(&tegra_rt5631_hp_jack, 1,
+ &tegra_rt5631_hp_jack_gpio);
+ if (ret)
+ dev_err(rtd->dev, "Jack GPIOs not added: %d\n", ret);
+ }
+
+ return 0;
+}
+
+SND_SOC_DAILINK_DEFS(hifi,
+ DAILINK_COMP_ARRAY(COMP_EMPTY()),
+ DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5631-hifi")),
+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link tegra_rt5631_dai = {
+ .name = "RT5631",
+ .stream_name = "RT5631 PCM",
+ .init = tegra_rt5631_init,
+ .ops = &tegra_rt5631_ops,
+ .dai_fmt = SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ SND_SOC_DAILINK_REG(hifi),
+};
+
+static struct snd_soc_card snd_soc_tegra_rt5631 = {
+ .name = "tegra-rt5631",
+ .owner = THIS_MODULE,
+ .dai_link = &tegra_rt5631_dai,
+ .num_links = 1,
+ .controls = tegra_rt5631_controls,
+ .num_controls = ARRAY_SIZE(tegra_rt5631_controls),
+ .dapm_widgets = tegra_rt5631_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tegra_rt5631_dapm_widgets),
+ .fully_routed = true,
+};
+
+static int tegra_rt5631_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_tegra_rt5631;
+ struct device_node *np_codec, *np_i2s;
+ struct tegra_rt5631 *machine;
+ struct gpio_desc *gpiod;
+ int ret;
+
+ machine = devm_kzalloc(&pdev->dev, sizeof(*machine), GFP_KERNEL);
+ if (!machine)
+ return -ENOMEM;
+
+ card->dev = &pdev->dev;
+ snd_soc_card_set_drvdata(card, machine);
+
+ gpiod = devm_gpiod_get_optional(&pdev->dev, "nvidia,hp-mute",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(gpiod))
+ return PTR_ERR(gpiod);
+
+ machine->gpiod_hp_mute = gpiod;
+
+ gpiod = devm_gpiod_get_optional(&pdev->dev, "nvidia,hp-det",
+ GPIOD_IN);
+ if (IS_ERR(gpiod))
+ return PTR_ERR(gpiod);
+
+ machine->gpiod_hp_det = gpiod;
+
+ ret = snd_soc_of_parse_card_name(card, "nvidia,model");
+ if (ret)
+ return ret;
+
+ ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
+ if (ret)
+ return ret;
+
+ np_codec = of_parse_phandle(pdev->dev.of_node, "nvidia,audio-codec", 0);
+ if (!np_codec) {
+ dev_err(&pdev->dev,
+ "Property 'nvidia,audio-codec' missing or invalid\n");
+ return -EINVAL;
+ }
+
+ np_i2s = of_parse_phandle(pdev->dev.of_node, "nvidia,i2s-controller", 0);
+ if (!np_i2s) {
+ dev_err(&pdev->dev,
+ "Property 'nvidia,i2s-controller' missing or invalid\n");
+ return -EINVAL;
+ }
+
+ tegra_rt5631_dai.cpus->of_node = np_i2s;
+ tegra_rt5631_dai.codecs->of_node = np_codec;
+ tegra_rt5631_dai.platforms->of_node = np_i2s;
+
+ ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
+ if (ret)
+ return ret;
+
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static const struct of_device_id tegra_rt5631_of_match[] = {
+ { .compatible = "nvidia,tegra-audio-rt5631", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, tegra_rt5631_of_match);
+
+static struct platform_driver tegra_rt5631_driver = {
+ .driver = {
+ .name = "tegra-snd-rt5631",
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = tegra_rt5631_of_match,
+ },
+ .probe = tegra_rt5631_probe,
+};
+module_platform_driver(tegra_rt5631_driver);
+
+MODULE_DESCRIPTION("Tegra+RT5631 machine ASoC driver");
+MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
+MODULE_AUTHOR("Svyatoslav Ryhel <clamor95@gmail.com>");
+MODULE_AUTHOR("Ion Agorria <ion@agorria.com>");
+MODULE_LICENSE("GPL");