1 /* 2 * sound/soc/codecs/wm8782.c 3 * simple, strap-pin configured 24bit 2ch ADC 4 * 5 * Copyright: 2011 Raumfeld GmbH 6 * Author: Johannes Stezenbach <js@sig21.net> 7 * 8 * based on ad73311.c 9 * Copyright: Analog Device Inc. 10 * Author: Cliff Cai <cliff.cai@analog.com> 11 * 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the 14 * Free Software Foundation; either version 2 of the License, or (at your 15 * option) any later version. 16 */ 17 18 #include <linux/init.h> 19 #include <linux/slab.h> 20 #include <linux/module.h> 21 #include <linux/kernel.h> 22 #include <linux/device.h> 23 #include <sound/core.h> 24 #include <sound/pcm.h> 25 #include <sound/ac97_codec.h> 26 #include <sound/initval.h> 27 #include <sound/soc.h> 28 29 static const struct snd_soc_dapm_widget wm8782_dapm_widgets[] = { 30 SND_SOC_DAPM_INPUT("AINL"), 31 SND_SOC_DAPM_INPUT("AINR"), 32 }; 33 34 static const struct snd_soc_dapm_route wm8782_dapm_routes[] = { 35 { "Capture", NULL, "AINL" }, 36 { "Capture", NULL, "AINR" }, 37 }; 38 39 static struct snd_soc_dai_driver wm8782_dai = { 40 .name = "wm8782", 41 .capture = { 42 .stream_name = "Capture", 43 .channels_min = 2, 44 .channels_max = 2, 45 /* For configurations with FSAMPEN=0 */ 46 .rates = SNDRV_PCM_RATE_8000_48000, 47 .formats = SNDRV_PCM_FMTBIT_S16_LE | 48 SNDRV_PCM_FMTBIT_S20_3LE | 49 SNDRV_PCM_FMTBIT_S24_LE, 50 }, 51 }; 52 53 static const struct snd_soc_component_driver soc_component_dev_wm8782 = { 54 .dapm_widgets = wm8782_dapm_widgets, 55 .num_dapm_widgets = ARRAY_SIZE(wm8782_dapm_widgets), 56 .dapm_routes = wm8782_dapm_routes, 57 .num_dapm_routes = ARRAY_SIZE(wm8782_dapm_routes), 58 .idle_bias_on = 1, 59 .use_pmdown_time = 1, 60 .endianness = 1, 61 .non_legacy_dai_naming = 1, 62 }; 63 64 static int wm8782_probe(struct platform_device *pdev) 65 { 66 return devm_snd_soc_register_component(&pdev->dev, 67 &soc_component_dev_wm8782, &wm8782_dai, 1); 68 } 69 70 static struct platform_driver wm8782_codec_driver = { 71 .driver = { 72 .name = "wm8782", 73 }, 74 .probe = wm8782_probe, 75 }; 76 77 module_platform_driver(wm8782_codec_driver); 78 79 MODULE_DESCRIPTION("ASoC WM8782 driver"); 80 MODULE_AUTHOR("Johannes Stezenbach <js@sig21.net>"); 81 MODULE_LICENSE("GPL"); 82