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// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for the PCM5102A codec
*
* Author: Florian Meier <florian.meier@koalo.de>
* Copyright 2013
*/
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/soc.h>
struct pcm5102a_priv {
struct gpio_desc *gpio_reset;
};
static struct snd_soc_dai_driver pcm5102a_dai = {
.name = "pcm5102a-hifi",
.playback = {
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_384000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE
},
};
static const struct snd_soc_component_driver soc_component_dev_pcm5102a = {
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
};
static int pcm5102a_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct pcm5102a_priv *pcm5102a;
pcm5102a = devm_kzalloc(dev, sizeof(*pcm5102a), GFP_KERNEL);
if (!pcm5102a)
return -ENOMEM;
pcm5102a->gpio_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(pcm5102a->gpio_reset))
return dev_err_probe(dev, PTR_ERR(pcm5102a->gpio_reset),
"failed to acquire reset gpio\n");
platform_set_drvdata(pdev, pcm5102a);
return devm_snd_soc_register_component(dev, &soc_component_dev_pcm5102a,
&pcm5102a_dai, 1);
}
static void pcm5102a_remove(struct platform_device *pdev)
{
struct pcm5102a_priv *priv = platform_get_drvdata(pdev);
gpiod_set_value_cansleep(priv->gpio_reset, 1);
}
static const struct of_device_id pcm5102a_of_match[] = {
{ .compatible = "ti,pcm5102a", },
{ }
};
MODULE_DEVICE_TABLE(of, pcm5102a_of_match);
static struct platform_driver pcm5102a_codec_driver = {
.probe = pcm5102a_probe,
.remove = pcm5102a_remove,
.driver = {
.name = "pcm5102a-codec",
.of_match_table = pcm5102a_of_match,
},
};
module_platform_driver(pcm5102a_codec_driver);
MODULE_DESCRIPTION("ASoC PCM5102A codec driver");
MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
MODULE_LICENSE("GPL v2");
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