From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- sound/soc/codecs/adau7002.c | 137 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 137 insertions(+) create mode 100644 sound/soc/codecs/adau7002.c (limited to 'sound/soc/codecs/adau7002.c') diff --git a/sound/soc/codecs/adau7002.c b/sound/soc/codecs/adau7002.c new file mode 100644 index 000000000..401bafabc --- /dev/null +++ b/sound/soc/codecs/adau7002.c @@ -0,0 +1,137 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ADAU7002 Stereo PDM-to-I2S/TDM converter driver + * + * Copyright 2014-2016 Analog Devices + * Author: Lars-Peter Clausen + */ + +#include +#include +#include +#include +#include +#include + +#include + +struct adau7002_priv { + int wakeup_delay; +}; + +static int adau7002_aif_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct adau7002_priv *adau7002 = + snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + if (adau7002->wakeup_delay) + msleep(adau7002->wakeup_delay); + break; + } + + return 0; +} + +static int adau7002_component_probe(struct snd_soc_component *component) +{ + struct adau7002_priv *adau7002; + + adau7002 = devm_kzalloc(component->dev, sizeof(*adau7002), + GFP_KERNEL); + if (!adau7002) + return -ENOMEM; + + device_property_read_u32(component->dev, "wakeup-delay-ms", + &adau7002->wakeup_delay); + + snd_soc_component_set_drvdata(component, adau7002); + + return 0; +} + +static const struct snd_soc_dapm_widget adau7002_widgets[] = { + SND_SOC_DAPM_AIF_OUT_E("ADAU AIF", "Capture", 0, + SND_SOC_NOPM, 0, 0, adau7002_aif_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_INPUT("PDM_DAT"), + SND_SOC_DAPM_REGULATOR_SUPPLY("IOVDD", 0, 0), +}; + +static const struct snd_soc_dapm_route adau7002_routes[] = { + { "ADAU AIF", NULL, "PDM_DAT"}, + { "Capture", NULL, "PDM_DAT" }, + { "Capture", NULL, "IOVDD" }, +}; + +static struct snd_soc_dai_driver adau7002_dai = { + .name = "adau7002-hifi", + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | + SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE, + .sig_bits = 20, + }, +}; + +static const struct snd_soc_component_driver adau7002_component_driver = { + .probe = adau7002_component_probe, + .dapm_widgets = adau7002_widgets, + .num_dapm_widgets = ARRAY_SIZE(adau7002_widgets), + .dapm_routes = adau7002_routes, + .num_dapm_routes = ARRAY_SIZE(adau7002_routes), + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, +}; + +static int adau7002_probe(struct platform_device *pdev) +{ + return devm_snd_soc_register_component(&pdev->dev, + &adau7002_component_driver, + &adau7002_dai, 1); +} + +static int adau7002_remove(struct platform_device *pdev) +{ + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id adau7002_dt_ids[] = { + { .compatible = "adi,adau7002", }, + { } +}; +MODULE_DEVICE_TABLE(of, adau7002_dt_ids); +#endif + +#ifdef CONFIG_ACPI +static const struct acpi_device_id adau7002_acpi_match[] = { + { "ADAU7002", 0 }, + {}, +}; +MODULE_DEVICE_TABLE(acpi, adau7002_acpi_match); +#endif + +static struct platform_driver adau7002_driver = { + .driver = { + .name = "adau7002", + .of_match_table = of_match_ptr(adau7002_dt_ids), + .acpi_match_table = ACPI_PTR(adau7002_acpi_match), + }, + .probe = adau7002_probe, + .remove = adau7002_remove, +}; +module_platform_driver(adau7002_driver); + +MODULE_AUTHOR("Lars-Peter Clausen "); +MODULE_DESCRIPTION("ADAU7002 Stereo PDM-to-I2S/TDM Converter driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3