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149 lines
3.9 KiB
149 lines
3.9 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* sound/soc/codecs/wm8782.c |
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* simple, strap-pin configured 24bit 2ch ADC |
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* |
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* Copyright: 2011 Raumfeld GmbH |
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* Author: Johannes Stezenbach <[email protected]> |
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* |
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* based on ad73311.c |
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* Copyright: Analog Devices Inc. |
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* Author: Cliff Cai <[email protected]> |
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*/ |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/device.h> |
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#include <linux/regulator/consumer.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/ac97_codec.h> |
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#include <sound/initval.h> |
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#include <sound/soc.h> |
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static const struct snd_soc_dapm_widget wm8782_dapm_widgets[] = { |
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SND_SOC_DAPM_INPUT("AINL"), |
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SND_SOC_DAPM_INPUT("AINR"), |
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}; |
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static const struct snd_soc_dapm_route wm8782_dapm_routes[] = { |
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{ "Capture", NULL, "AINL" }, |
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{ "Capture", NULL, "AINR" }, |
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}; |
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static struct snd_soc_dai_driver wm8782_dai = { |
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.name = "wm8782", |
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.capture = { |
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.stream_name = "Capture", |
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.channels_min = 2, |
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.channels_max = 2, |
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/* For configurations with FSAMPEN=0 */ |
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.rates = SNDRV_PCM_RATE_8000_48000, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE | |
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SNDRV_PCM_FMTBIT_S20_3LE | |
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SNDRV_PCM_FMTBIT_S24_LE, |
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}, |
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}; |
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/* regulator power supply names */ |
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static const char *supply_names[] = { |
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"Vdda", /* analog supply, 2.7V - 3.6V */ |
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"Vdd", /* digital supply, 2.7V - 5.5V */ |
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}; |
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struct wm8782_priv { |
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struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; |
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}; |
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static int wm8782_soc_probe(struct snd_soc_component *component) |
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{ |
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struct wm8782_priv *priv = snd_soc_component_get_drvdata(component); |
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return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); |
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} |
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static void wm8782_soc_remove(struct snd_soc_component *component) |
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{ |
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struct wm8782_priv *priv = snd_soc_component_get_drvdata(component); |
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regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); |
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} |
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#ifdef CONFIG_PM |
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static int wm8782_soc_suspend(struct snd_soc_component *component) |
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{ |
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struct wm8782_priv *priv = snd_soc_component_get_drvdata(component); |
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regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); |
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return 0; |
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} |
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static int wm8782_soc_resume(struct snd_soc_component *component) |
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{ |
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struct wm8782_priv *priv = snd_soc_component_get_drvdata(component); |
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return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); |
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} |
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#else |
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#define wm8782_soc_suspend NULL |
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#define wm8782_soc_resume NULL |
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#endif /* CONFIG_PM */ |
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static const struct snd_soc_component_driver soc_component_dev_wm8782 = { |
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.probe = wm8782_soc_probe, |
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.remove = wm8782_soc_remove, |
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.suspend = wm8782_soc_suspend, |
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.resume = wm8782_soc_resume, |
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.dapm_widgets = wm8782_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(wm8782_dapm_widgets), |
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.dapm_routes = wm8782_dapm_routes, |
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.num_dapm_routes = ARRAY_SIZE(wm8782_dapm_routes), |
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.idle_bias_on = 1, |
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.use_pmdown_time = 1, |
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.endianness = 1, |
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.non_legacy_dai_naming = 1, |
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}; |
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static int wm8782_probe(struct platform_device *pdev) |
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{ |
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struct device *dev = &pdev->dev; |
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struct wm8782_priv *priv; |
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int ret, i; |
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); |
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if (!priv) |
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return -ENOMEM; |
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dev_set_drvdata(dev, priv); |
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for (i = 0; i < ARRAY_SIZE(supply_names); i++) |
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priv->supplies[i].supply = supply_names[i]; |
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ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies), |
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priv->supplies); |
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if (ret < 0) |
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return ret; |
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return devm_snd_soc_register_component(&pdev->dev, |
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&soc_component_dev_wm8782, &wm8782_dai, 1); |
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} |
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#ifdef CONFIG_OF |
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static const struct of_device_id wm8782_of_match[] = { |
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{ .compatible = "wlf,wm8782", }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(of, wm8782_of_match); |
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#endif |
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static struct platform_driver wm8782_codec_driver = { |
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.driver = { |
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.name = "wm8782", |
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.of_match_table = of_match_ptr(wm8782_of_match), |
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}, |
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.probe = wm8782_probe, |
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}; |
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module_platform_driver(wm8782_codec_driver); |
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MODULE_DESCRIPTION("ASoC WM8782 driver"); |
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MODULE_AUTHOR("Johannes Stezenbach <[email protected]>"); |
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MODULE_LICENSE("GPL");
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