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96 lines
2.4 KiB
96 lines
2.4 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// ak4554.c |
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// |
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// Copyright (C) 2013 Renesas Solutions Corp. |
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// Kuninori Morimoto <[email protected]> |
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#include <linux/module.h> |
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#include <sound/soc.h> |
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/* |
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* ak4554 is very simple DA/AD converter which has no setting register. |
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* |
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* CAUTION |
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* |
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* ak4554 playback format is SND_SOC_DAIFMT_RIGHT_J, |
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* and, capture format is SND_SOC_DAIFMT_LEFT_J |
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* on same bit clock, LR clock. |
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* But, this driver doesn't have snd_soc_dai_ops :: set_fmt |
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* |
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* CPU/Codec DAI image |
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* |
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* CPU-DAI1 (plaback only fmt = RIGHT_J) --+-- ak4554 |
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* | |
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* CPU-DAI2 (capture only fmt = LEFT_J) ---+ |
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*/ |
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static const struct snd_soc_dapm_widget ak4554_dapm_widgets[] = { |
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SND_SOC_DAPM_INPUT("AINL"), |
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SND_SOC_DAPM_INPUT("AINR"), |
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SND_SOC_DAPM_OUTPUT("AOUTL"), |
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SND_SOC_DAPM_OUTPUT("AOUTR"), |
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}; |
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static const struct snd_soc_dapm_route ak4554_dapm_routes[] = { |
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{ "Capture", NULL, "AINL" }, |
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{ "Capture", NULL, "AINR" }, |
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{ "AOUTL", NULL, "Playback" }, |
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{ "AOUTR", NULL, "Playback" }, |
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}; |
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static struct snd_soc_dai_driver ak4554_dai = { |
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.name = "ak4554-hifi", |
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.playback = { |
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.stream_name = "Playback", |
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.channels_min = 2, |
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.channels_max = 2, |
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.rates = SNDRV_PCM_RATE_8000_48000, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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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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.rates = SNDRV_PCM_RATE_8000_48000, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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.symmetric_rate = 1, |
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}; |
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static const struct snd_soc_component_driver soc_component_dev_ak4554 = { |
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.dapm_widgets = ak4554_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(ak4554_dapm_widgets), |
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.dapm_routes = ak4554_dapm_routes, |
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.num_dapm_routes = ARRAY_SIZE(ak4554_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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}; |
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static int ak4554_soc_probe(struct platform_device *pdev) |
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{ |
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return devm_snd_soc_register_component(&pdev->dev, |
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&soc_component_dev_ak4554, |
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&ak4554_dai, 1); |
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} |
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static const struct of_device_id ak4554_of_match[] = { |
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{ .compatible = "asahi-kasei,ak4554" }, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(of, ak4554_of_match); |
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static struct platform_driver ak4554_driver = { |
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.driver = { |
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.name = "ak4554-adc-dac", |
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.of_match_table = ak4554_of_match, |
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}, |
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.probe = ak4554_soc_probe, |
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}; |
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module_platform_driver(ak4554_driver); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_DESCRIPTION("SoC AK4554 driver"); |
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MODULE_AUTHOR("Kuninori Morimoto <[email protected]>");
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