// SPDX-License-Identifier: GPL-2.0-or-later
|
/*
|
* SiRF Audio port driver
|
*
|
* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
|
*/
|
#include <linux/module.h>
|
#include <sound/soc.h>
|
#include <sound/dmaengine_pcm.h>
|
|
struct sirf_audio_port {
|
struct regmap *regmap;
|
struct snd_dmaengine_dai_dma_data playback_dma_data;
|
struct snd_dmaengine_dai_dma_data capture_dma_data;
|
};
|
|
|
static int sirf_audio_port_dai_probe(struct snd_soc_dai *dai)
|
{
|
struct sirf_audio_port *port = snd_soc_dai_get_drvdata(dai);
|
|
snd_soc_dai_init_dma_data(dai, &port->playback_dma_data,
|
&port->capture_dma_data);
|
return 0;
|
}
|
|
static struct snd_soc_dai_driver sirf_audio_port_dai = {
|
.probe = sirf_audio_port_dai_probe,
|
.name = "sirf-audio-port",
|
.id = 0,
|
.playback = {
|
.channels_min = 2,
|
.channels_max = 2,
|
.rates = SNDRV_PCM_RATE_48000,
|
.formats = SNDRV_PCM_FMTBIT_S16_LE,
|
},
|
.capture = {
|
.channels_min = 1,
|
.channels_max = 2,
|
.rates = SNDRV_PCM_RATE_48000,
|
.formats = SNDRV_PCM_FMTBIT_S16_LE,
|
},
|
};
|
|
static const struct snd_soc_component_driver sirf_audio_port_component = {
|
.name = "sirf-audio-port",
|
};
|
|
static int sirf_audio_port_probe(struct platform_device *pdev)
|
{
|
int ret;
|
struct sirf_audio_port *port;
|
|
port = devm_kzalloc(&pdev->dev,
|
sizeof(struct sirf_audio_port), GFP_KERNEL);
|
if (!port)
|
return -ENOMEM;
|
|
ret = devm_snd_soc_register_component(&pdev->dev,
|
&sirf_audio_port_component, &sirf_audio_port_dai, 1);
|
if (ret)
|
return ret;
|
|
platform_set_drvdata(pdev, port);
|
return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
|
}
|
|
static const struct of_device_id sirf_audio_port_of_match[] = {
|
{ .compatible = "sirf,audio-port", },
|
{}
|
};
|
MODULE_DEVICE_TABLE(of, sirf_audio_port_of_match);
|
|
static struct platform_driver sirf_audio_port_driver = {
|
.driver = {
|
.name = "sirf-audio-port",
|
.of_match_table = sirf_audio_port_of_match,
|
},
|
.probe = sirf_audio_port_probe,
|
};
|
|
module_platform_driver(sirf_audio_port_driver);
|
|
MODULE_DESCRIPTION("SiRF Audio Port driver");
|
MODULE_AUTHOR("RongJun Ying <Rongjun.Ying@csr.com>");
|
MODULE_LICENSE("GPL v2");
|
