projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 89933dee NJ |
1 | /* |
| 2 | * wm8727.c | |
| 3 | * | |
| 4 | * Created on: 15-Oct-2009 | |
| 5 | * Author: neil.jones@imgtec.com | |
| 6 | * | |
| 7 | * Copyright (C) 2009 Imagination Technologies Ltd. | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or modify it | |
| 10 | * under the terms of the GNU General Public License as published by the | |
| 11 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 12 | * option) any later version. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/init.h> | |
| 5a0e3ad6 | 16 | #include <linux/slab.h> |
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17 | #include <linux/module.h> |
| 18 | #include <linux/kernel.h> | |
| 19 | #include <linux/device.h> | |
| 20 | #include <sound/core.h> | |
| 21 | #include <sound/pcm.h> | |
| 22 | #include <sound/ac97_codec.h> | |
| 23 | #include <sound/initval.h> | |
| 24 | #include <sound/soc.h> | |
| 25 | ||
| 72a061f7 MB |
26 | static const struct snd_soc_dapm_widget wm8727_dapm_widgets[] = { |
| 27 | SND_SOC_DAPM_OUTPUT("VOUTL"), | |
| 28 | SND_SOC_DAPM_OUTPUT("VOUTR"), | |
| 29 | }; | |
| 30 | ||
| 31 | static const struct snd_soc_dapm_route wm8727_dapm_routes[] = { | |
| 32 | { "VOUTL", NULL, "Playback" }, | |
| 33 | { "VOUTR", NULL, "Playback" }, | |
| 34 | }; | |
| 35 | ||
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36 | /* |
| 37 | * Note this is a simple chip with no configuration interface, sample rate is | |
| 38 | * determined automatically by examining the Master clock and Bit clock ratios | |
| 39 | */ | |
| 40 | #define WM8727_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ | |
| 41 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\ | |
| 42 | SNDRV_PCM_RATE_192000) | |
| 43 | ||
| 44 | ||
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45 | static struct snd_soc_dai_driver wm8727_dai = { |
| 46 | .name = "wm8727-hifi", | |
| 89933dee NJ |
47 | .playback = { |
| 48 | .stream_name = "Playback", | |
| 49 | .channels_min = 2, | |
| 50 | .channels_max = 2, | |
| 51 | .rates = WM8727_RATES, | |
| 52 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, | |
| 53 | }, | |
| 54 | }; | |
| 89933dee | 55 | |
| 72a061f7 MB |
56 | static struct snd_soc_codec_driver soc_codec_dev_wm8727 = { |
| 57 | .dapm_widgets = wm8727_dapm_widgets, | |
| 58 | .num_dapm_widgets = ARRAY_SIZE(wm8727_dapm_widgets), | |
| 59 | .dapm_routes = wm8727_dapm_routes, | |
| 60 | .num_dapm_routes = ARRAY_SIZE(wm8727_dapm_routes), | |
| 61 | }; | |
| cce2e9db | 62 | |
| 7a79e94e | 63 | static int wm8727_probe(struct platform_device *pdev) |
| 89933dee | 64 | { |
| f0fba2ad LG |
65 | return snd_soc_register_codec(&pdev->dev, |
| 66 | &soc_codec_dev_wm8727, &wm8727_dai, 1); | |
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67 | } |
| 68 | ||
| 7a79e94e | 69 | static int wm8727_remove(struct platform_device *pdev) |
| 89933dee | 70 | { |
| f0fba2ad | 71 | snd_soc_unregister_codec(&pdev->dev); |
| 89933dee NJ |
72 | return 0; |
| 73 | } | |
| 74 | ||
| 529697c5 | 75 | static struct platform_driver wm8727_codec_driver = { |
| 89933dee | 76 | .driver = { |
| 091edccf | 77 | .name = "wm8727", |
| 89933dee NJ |
78 | }, |
| 79 | ||
| f0fba2ad | 80 | .probe = wm8727_probe, |
| 7a79e94e | 81 | .remove = wm8727_remove, |
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82 | }; |
| 83 | ||
| 5bbcc3c0 | 84 | module_platform_driver(wm8727_codec_driver); |
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85 | |
| 86 | MODULE_DESCRIPTION("ASoC wm8727 driver"); | |
| 87 | MODULE_AUTHOR("Neil Jones"); | |
| 88 | MODULE_LICENSE("GPL"); |