soc/codecs/ad73311.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * ad73311.c  --  ALSA Soc AD73311 codec support
0004  *
0005  * Copyright:   Analog Devices Inc.
0006  * Author:  Cliff Cai <cliff.cai@analog.com>
0007  */
0008
0009 #include <linux/init.h>
0010 #include <linux/slab.h>
0011 #include <linux/module.h>
0012 #include <linux/kernel.h>
0013 #include <linux/device.h>
0014 #include <sound/core.h>
0015 #include <sound/pcm.h>
0016 #include <sound/ac97_codec.h>
0017 #include <sound/initval.h>
0018 #include <sound/soc.h>
0019
0020 #include "ad73311.h"
0021
0022 static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
0023 SND_SOC_DAPM_INPUT("VINP"),
0024 SND_SOC_DAPM_INPUT("VINN"),
0025 SND_SOC_DAPM_OUTPUT("VOUTN"),
0026 SND_SOC_DAPM_OUTPUT("VOUTP"),
0027 };
0028
0029 static const struct snd_soc_dapm_route ad73311_dapm_routes[] = {
0030     { "Capture", NULL, "VINP" },
0031     { "Capture", NULL, "VINN" },
0032
0033     { "VOUTN", NULL, "Playback" },
0034     { "VOUTP", NULL, "Playback" },
0035 };
0036
0037 static struct snd_soc_dai_driver ad73311_dai = {
0038     .name = "ad73311-hifi",
0039     .playback = {
0040         .stream_name = "Playback",
0041         .channels_min = 1,
0042         .channels_max = 1,
0043         .rates = SNDRV_PCM_RATE_8000,
0044         .formats = SNDRV_PCM_FMTBIT_S16_LE, },
0045     .capture = {
0046         .stream_name = "Capture",
0047         .channels_min = 1,
0048         .channels_max = 1,
0049         .rates = SNDRV_PCM_RATE_8000,
0050         .formats = SNDRV_PCM_FMTBIT_S16_LE, },
0051 };
0052
0053 static const struct snd_soc_component_driver soc_component_dev_ad73311 = {
0054     .dapm_widgets       = ad73311_dapm_widgets,
0055     .num_dapm_widgets   = ARRAY_SIZE(ad73311_dapm_widgets),
0056     .dapm_routes        = ad73311_dapm_routes,
0057     .num_dapm_routes    = ARRAY_SIZE(ad73311_dapm_routes),
0058     .idle_bias_on       = 1,
0059     .use_pmdown_time    = 1,
0060     .endianness     = 1,
0061 };
0062
0063 static int ad73311_probe(struct platform_device *pdev)
0064 {
0065     return devm_snd_soc_register_component(&pdev->dev,
0066             &soc_component_dev_ad73311, &ad73311_dai, 1);
0067 }
0068
0069 static struct platform_driver ad73311_codec_driver = {
0070     .driver = {
0071             .name = "ad73311",
0072     },
0073
0074     .probe = ad73311_probe,
0075 };
0076
0077 module_platform_driver(ad73311_codec_driver);
0078
0079 MODULE_DESCRIPTION("ASoC ad73311 driver");
0080 MODULE_AUTHOR("Cliff Cai ");
0081 MODULE_LICENSE("GPL");