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