| Kuninori Morimoto | a2911cd | 2013-07-03 21:15:13 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * ak4554.c |
| 3 | * |
| 4 | * Copyright (C) 2013 Renesas Solutions Corp. |
| 5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/module.h> |
| 13 | #include <sound/soc.h> |
| 14 | |
| 15 | /* |
| 16 | * ak4554 is very simple DA/AD converter which has no setting register. |
| 17 | * |
| 18 | * CAUTION |
| 19 | * |
| 20 | * ak4554 playback format is SND_SOC_DAIFMT_RIGHT_J, |
| 21 | * and, capture format is SND_SOC_DAIFMT_LEFT_J |
| 22 | * on same bit clock, LR clock. |
| 23 | * But, this driver doesn't have snd_soc_dai_ops :: set_fmt |
| 24 | * |
| 25 | * CPU/Codec DAI image |
| 26 | * |
| 27 | * CPU-DAI1 (plaback only fmt = RIGHT_J) --+-- ak4554 |
| 28 | * | |
| 29 | * CPU-DAI2 (capture only fmt = LEFT_J) ---+ |
| 30 | */ |
| 31 | |
| 32 | static struct snd_soc_dai_driver ak4554_dai = { |
| 33 | .name = "ak4554-hifi", |
| 34 | .playback = { |
| 35 | .stream_name = "Playback", |
| 36 | .channels_min = 2, |
| 37 | .channels_max = 2, |
| 38 | .rates = SNDRV_PCM_RATE_8000_48000, |
| 39 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| 40 | }, |
| 41 | .capture = { |
| 42 | .stream_name = "Capture", |
| 43 | .channels_min = 2, |
| 44 | .channels_max = 2, |
| 45 | .rates = SNDRV_PCM_RATE_8000_48000, |
| 46 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| 47 | }, |
| 48 | .symmetric_rates = 1, |
| 49 | }; |
| 50 | |
| 51 | static struct snd_soc_codec_driver soc_codec_dev_ak4554 = { |
| 52 | }; |
| 53 | |
| 54 | static int ak4554_soc_probe(struct platform_device *pdev) |
| 55 | { |
| 56 | return snd_soc_register_codec(&pdev->dev, |
| 57 | &soc_codec_dev_ak4554, |
| 58 | &ak4554_dai, 1); |
| 59 | } |
| 60 | |
| 61 | static int ak4554_soc_remove(struct platform_device *pdev) |
| 62 | { |
| 63 | snd_soc_unregister_codec(&pdev->dev); |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | static struct platform_driver ak4554_driver = { |
| 68 | .driver = { |
| 69 | .name = "ak4554-adc-dac", |
| 70 | .owner = THIS_MODULE, |
| 71 | }, |
| 72 | .probe = ak4554_soc_probe, |
| 73 | .remove = ak4554_soc_remove, |
| 74 | }; |
| 75 | module_platform_driver(ak4554_driver); |
| 76 | |
| 77 | MODULE_LICENSE("GPL"); |
| 78 | MODULE_DESCRIPTION("SoC AK4554 driver"); |
| 79 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |