| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Tegra machine ASoC driver for boards using a MAX90809 CODEC. |
| * |
| * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. |
| * |
| * Based on code copyright/by: |
| * |
| * Copyright (C) 2010-2012 - NVIDIA, Inc. |
| * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net> |
| * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd. |
| * Copyright 2007 Wolfson Microelectronics PLC. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/slab.h> |
| #include <linux/gpio.h> |
| #include <linux/of_gpio.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" |
| |
| #define DRV_NAME "tegra-snd-max98090" |
| |
| struct tegra_max98090 { |
| struct tegra_asoc_utils_data util_data; |
| int gpio_hp_det; |
| int gpio_mic_det; |
| }; |
| |
| static int tegra_max98090_asoc_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params) |
| { |
| struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
| struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
| struct snd_soc_card *card = rtd->card; |
| struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card); |
| int srate, mclk; |
| int err; |
| |
| srate = params_rate(params); |
| switch (srate) { |
| case 8000: |
| case 16000: |
| case 24000: |
| case 32000: |
| case 48000: |
| case 64000: |
| case 96000: |
| mclk = 12288000; |
| break; |
| case 11025: |
| case 22050: |
| case 44100: |
| case 88200: |
| mclk = 11289600; |
| break; |
| default: |
| mclk = 12000000; |
| break; |
| } |
| |
| 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 const struct snd_soc_ops tegra_max98090_ops = { |
| .hw_params = tegra_max98090_asoc_hw_params, |
| }; |
| |
| static struct snd_soc_jack tegra_max98090_hp_jack; |
| |
| static struct snd_soc_jack_pin tegra_max98090_hp_jack_pins[] = { |
| { |
| .pin = "Headphones", |
| .mask = SND_JACK_HEADPHONE, |
| }, |
| }; |
| |
| static struct snd_soc_jack_gpio tegra_max98090_hp_jack_gpio = { |
| .name = "Headphone detection", |
| .report = SND_JACK_HEADPHONE, |
| .debounce_time = 150, |
| .invert = 1, |
| }; |
| |
| static struct snd_soc_jack tegra_max98090_mic_jack; |
| |
| static struct snd_soc_jack_pin tegra_max98090_mic_jack_pins[] = { |
| { |
| .pin = "Mic Jack", |
| .mask = SND_JACK_MICROPHONE, |
| }, |
| }; |
| |
| static struct snd_soc_jack_gpio tegra_max98090_mic_jack_gpio = { |
| .name = "Mic detection", |
| .report = SND_JACK_MICROPHONE, |
| .debounce_time = 150, |
| .invert = 1, |
| }; |
| |
| static const struct snd_soc_dapm_widget tegra_max98090_dapm_widgets[] = { |
| SND_SOC_DAPM_HP("Headphones", NULL), |
| SND_SOC_DAPM_SPK("Speakers", NULL), |
| SND_SOC_DAPM_MIC("Mic Jack", NULL), |
| SND_SOC_DAPM_MIC("Int Mic", NULL), |
| }; |
| |
| static const struct snd_kcontrol_new tegra_max98090_controls[] = { |
| SOC_DAPM_PIN_SWITCH("Headphones"), |
| SOC_DAPM_PIN_SWITCH("Speakers"), |
| SOC_DAPM_PIN_SWITCH("Mic Jack"), |
| SOC_DAPM_PIN_SWITCH("Int Mic"), |
| }; |
| |
| static int tegra_max98090_asoc_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct tegra_max98090 *machine = snd_soc_card_get_drvdata(rtd->card); |
| |
| if (gpio_is_valid(machine->gpio_hp_det)) { |
| snd_soc_card_jack_new(rtd->card, "Headphones", |
| SND_JACK_HEADPHONE, |
| &tegra_max98090_hp_jack, |
| tegra_max98090_hp_jack_pins, |
| ARRAY_SIZE(tegra_max98090_hp_jack_pins)); |
| |
| tegra_max98090_hp_jack_gpio.gpio = machine->gpio_hp_det; |
| snd_soc_jack_add_gpios(&tegra_max98090_hp_jack, |
| 1, |
| &tegra_max98090_hp_jack_gpio); |
| } |
| |
| if (gpio_is_valid(machine->gpio_mic_det)) { |
| snd_soc_card_jack_new(rtd->card, "Mic Jack", |
| SND_JACK_MICROPHONE, |
| &tegra_max98090_mic_jack, |
| tegra_max98090_mic_jack_pins, |
| ARRAY_SIZE(tegra_max98090_mic_jack_pins)); |
| |
| tegra_max98090_mic_jack_gpio.gpio = machine->gpio_mic_det; |
| snd_soc_jack_add_gpios(&tegra_max98090_mic_jack, |
| 1, |
| &tegra_max98090_mic_jack_gpio); |
| } |
| |
| return 0; |
| } |
| |
| SND_SOC_DAILINK_DEFS(pcm, |
| DAILINK_COMP_ARRAY(COMP_EMPTY()), |
| DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")), |
| DAILINK_COMP_ARRAY(COMP_EMPTY())); |
| |
| static struct snd_soc_dai_link tegra_max98090_dai = { |
| .name = "max98090", |
| .stream_name = "max98090 PCM", |
| .init = tegra_max98090_asoc_init, |
| .ops = &tegra_max98090_ops, |
| .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_CBS_CFS, |
| SND_SOC_DAILINK_REG(pcm), |
| }; |
| |
| static struct snd_soc_card snd_soc_tegra_max98090 = { |
| .name = "tegra-max98090", |
| .owner = THIS_MODULE, |
| .dai_link = &tegra_max98090_dai, |
| .num_links = 1, |
| .controls = tegra_max98090_controls, |
| .num_controls = ARRAY_SIZE(tegra_max98090_controls), |
| .dapm_widgets = tegra_max98090_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(tegra_max98090_dapm_widgets), |
| .fully_routed = true, |
| }; |
| |
| static int tegra_max98090_probe(struct platform_device *pdev) |
| { |
| struct device_node *np = pdev->dev.of_node; |
| struct snd_soc_card *card = &snd_soc_tegra_max98090; |
| struct tegra_max98090 *machine; |
| int ret; |
| |
| machine = devm_kzalloc(&pdev->dev, |
| sizeof(struct tegra_max98090), GFP_KERNEL); |
| if (!machine) |
| return -ENOMEM; |
| |
| card->dev = &pdev->dev; |
| snd_soc_card_set_drvdata(card, machine); |
| |
| machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0); |
| if (machine->gpio_hp_det == -EPROBE_DEFER) |
| return -EPROBE_DEFER; |
| |
| machine->gpio_mic_det = |
| of_get_named_gpio(np, "nvidia,mic-det-gpios", 0); |
| if (machine->gpio_mic_det == -EPROBE_DEFER) |
| return -EPROBE_DEFER; |
| |
| 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; |
| |
| tegra_max98090_dai.codecs->of_node = of_parse_phandle(np, |
| "nvidia,audio-codec", 0); |
| if (!tegra_max98090_dai.codecs->of_node) { |
| dev_err(&pdev->dev, |
| "Property 'nvidia,audio-codec' missing or invalid\n"); |
| return -EINVAL; |
| } |
| |
| tegra_max98090_dai.cpus->of_node = of_parse_phandle(np, |
| "nvidia,i2s-controller", 0); |
| if (!tegra_max98090_dai.cpus->of_node) { |
| dev_err(&pdev->dev, |
| "Property 'nvidia,i2s-controller' missing or invalid\n"); |
| return -EINVAL; |
| } |
| |
| tegra_max98090_dai.platforms->of_node = tegra_max98090_dai.cpus->of_node; |
| |
| 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 dev_err_probe(&pdev->dev, ret, |
| "snd_soc_register_card failed\n"); |
| |
| return 0; |
| } |
| |
| static const struct of_device_id tegra_max98090_of_match[] = { |
| { .compatible = "nvidia,tegra-audio-max98090", }, |
| {}, |
| }; |
| |
| static struct platform_driver tegra_max98090_driver = { |
| .driver = { |
| .name = DRV_NAME, |
| .pm = &snd_soc_pm_ops, |
| .of_match_table = tegra_max98090_of_match, |
| }, |
| .probe = tegra_max98090_probe, |
| }; |
| module_platform_driver(tegra_max98090_driver); |
| |
| MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); |
| MODULE_DESCRIPTION("Tegra max98090 machine ASoC driver"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_ALIAS("platform:" DRV_NAME); |
| MODULE_DEVICE_TABLE(of, tegra_max98090_of_match); |