projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| efc4720d MB |
1 | /* |
| 2 | * This is a simple driver for the GTM601 Voice PCM interface | |
| 3 | * | |
| 4 | * Copyright (C) 2015 Goldelico GmbH | |
| 5 | * | |
| 6 | * Author: Marek Belisko <marek@goldelico.com> | |
| 7 | * | |
| 8 | * Based on wm8727.c driver | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License version 2 as | |
| 12 | * published by the Free Software Foundation. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/init.h> | |
| 16 | #include <linux/slab.h> | |
| 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 | ||
| 26 | static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = { | |
| 27 | SND_SOC_DAPM_OUTPUT("AOUT"), | |
| 28 | SND_SOC_DAPM_INPUT("AIN"), | |
| 29 | }; | |
| 30 | ||
| 31 | static const struct snd_soc_dapm_route gtm601_dapm_routes[] = { | |
| 32 | { "AOUT", NULL, "Playback" }, | |
| 33 | { "Capture", NULL, "AIN" }, | |
| 34 | }; | |
| 35 | ||
| beb5f865 | 36 | static struct snd_soc_dai_driver gtm601_dai = { |
| efc4720d MB |
37 | .name = "gtm601", |
| 38 | .playback = { | |
| 39 | .stream_name = "Playback", | |
| 40 | .channels_min = 1, | |
| 41 | .channels_max = 1, | |
| 42 | .rates = SNDRV_PCM_RATE_8000, | |
| 43 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
| 44 | }, | |
| 45 | .capture = { | |
| 46 | .stream_name = "Capture", | |
| 47 | .channels_min = 1, | |
| 48 | .channels_max = 1, | |
| 49 | .rates = SNDRV_PCM_RATE_8000, | |
| 50 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
| 51 | }, | |
| 52 | }; | |
| 53 | ||
| 02a9547e | 54 | static const struct snd_soc_codec_driver soc_codec_dev_gtm601 = { |
| 054ea6c9 KM |
55 | .component_driver = { |
| 56 | .dapm_widgets = gtm601_dapm_widgets, | |
| 57 | .num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets), | |
| 58 | .dapm_routes = gtm601_dapm_routes, | |
| 59 | .num_dapm_routes = ARRAY_SIZE(gtm601_dapm_routes), | |
| 60 | }, | |
| efc4720d MB |
61 | }; |
| 62 | ||
| 63 | static int gtm601_platform_probe(struct platform_device *pdev) | |
| 64 | { | |
| 65 | return snd_soc_register_codec(&pdev->dev, | |
| 66 | &soc_codec_dev_gtm601, >m601_dai, 1); | |
| 67 | } | |
| 68 | ||
| 69 | static int gtm601_platform_remove(struct platform_device *pdev) | |
| 70 | { | |
| 71 | snd_soc_unregister_codec(&pdev->dev); | |
| 72 | return 0; | |
| 73 | } | |
| 74 | ||
| efc4720d MB |
75 | #if defined(CONFIG_OF) |
| 76 | static const struct of_device_id gtm601_codec_of_match[] = { | |
| 77 | { .compatible = "option,gtm601", }, | |
| 78 | {}, | |
| 79 | }; | |
| 80 | MODULE_DEVICE_TABLE(of, gtm601_codec_of_match); | |
| 81 | #endif | |
| 82 | ||
| 83 | static struct platform_driver gtm601_codec_driver = { | |
| 84 | .driver = { | |
| 02a9547e AL |
85 | .name = "gtm601", |
| 86 | .of_match_table = of_match_ptr(gtm601_codec_of_match), | |
| efc4720d | 87 | }, |
| efc4720d MB |
88 | .probe = gtm601_platform_probe, |
| 89 | .remove = gtm601_platform_remove, | |
| 90 | }; | |
| 91 | ||
| 92 | module_platform_driver(gtm601_codec_driver); | |
| 93 | ||
| 94 | MODULE_DESCRIPTION("ASoC gtm601 driver"); | |
| 95 | MODULE_AUTHOR("Marek Belisko <marek@goldelico.com>"); | |
| 96 | MODULE_LICENSE("GPL"); | |
| d4979631 | 97 | MODULE_ALIAS("platform:gtm601"); |