[mirror_ubuntu-bionic-kernel.git] / sound / soc / sirf / sirf-audio-port.c

/*
 * SiRF Audio port driver
 *
 * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
 *
 * Licensed under GPLv2 or later.
 */
#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");
Commit	Line	Data
a731e217 RY	1	/*
	2	* SiRF Audio port driver
	3	*
	4	* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
	5	*
	6	* Licensed under GPLv2 or later.
	7	*/
	8	#include <linux/module.h>
a731e217 RY	9	#include <sound/soc.h>
	10	#include <sound/dmaengine_pcm.h>
	11
a731e217 RY	12	struct sirf_audio_port {
	13	struct regmap *regmap;
	14	struct snd_dmaengine_dai_dma_data playback_dma_data;
	15	struct snd_dmaengine_dai_dma_data capture_dma_data;
	16	};
	17
a731e217 RY	18
	19	static int sirf_audio_port_dai_probe(struct snd_soc_dai *dai)
	20	{
	21	struct sirf_audio_port *port = snd_soc_dai_get_drvdata(dai);
adbdba3f	22
a731e217 RY	23	snd_soc_dai_init_dma_data(dai, &port->playback_dma_data,
	24	&port->capture_dma_data);
	25	return 0;
	26	}
	27
a731e217 RY	28	static struct snd_soc_dai_driver sirf_audio_port_dai = {
	29	.probe = sirf_audio_port_dai_probe,
	30	.name = "sirf-audio-port",
	31	.id = 0,
	32	.playback = {
	33	.channels_min = 2,
	34	.channels_max = 2,
	35	.rates = SNDRV_PCM_RATE_48000,
	36	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	37	},
	38	.capture = {
	39	.channels_min = 1,
	40	.channels_max = 2,
	41	.rates = SNDRV_PCM_RATE_48000,
	42	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	43	},
a731e217 RY	44	};
	45
	46	static const struct snd_soc_component_driver sirf_audio_port_component = {
	47	.name = "sirf-audio-port",
	48	};
	49
a731e217 RY	50	static int sirf_audio_port_probe(struct platform_device *pdev)
	51	{
	52	int ret;
	53	struct sirf_audio_port *port;
a731e217 RY	54
	55	port = devm_kzalloc(&pdev->dev,
	56	sizeof(struct sirf_audio_port), GFP_KERNEL);
	57	if (!port)
	58	return -ENOMEM;
	59
a731e217 RY	60	ret = devm_snd_soc_register_component(&pdev->dev,
	61	&sirf_audio_port_component, &sirf_audio_port_dai, 1);
	62	if (ret)
	63	return ret;
	64
	65	platform_set_drvdata(pdev, port);
	66	return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
	67	}
	68
	69	static const struct of_device_id sirf_audio_port_of_match[] = {
	70	{ .compatible = "sirf,audio-port", },
	71	{}
	72	};
	73	MODULE_DEVICE_TABLE(of, sirf_audio_port_of_match);
	74
	75	static struct platform_driver sirf_audio_port_driver = {
	76	.driver = {
	77	.name = "sirf-audio-port",
a731e217 RY	78	.of_match_table = sirf_audio_port_of_match,
	79	},
	80	.probe = sirf_audio_port_probe,
	81	};
	82
	83	module_platform_driver(sirf_audio_port_driver);
	84
	85	MODULE_DESCRIPTION("SiRF Audio Port driver");
	86	MODULE_AUTHOR("RongJun Ying <Rongjun.Ying@csr.com>");
	87	MODULE_LICENSE("GPL v2");