ad73311.c (2018B)
1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * ad73311.c -- ALSA Soc AD73311 codec support 4 * 5 * Copyright: Analog Devices Inc. 6 * Author: Cliff Cai <cliff.cai@analog.com> 7 */ 8 9#include <linux/init.h> 10#include <linux/slab.h> 11#include <linux/module.h> 12#include <linux/kernel.h> 13#include <linux/device.h> 14#include <sound/core.h> 15#include <sound/pcm.h> 16#include <sound/ac97_codec.h> 17#include <sound/initval.h> 18#include <sound/soc.h> 19 20#include "ad73311.h" 21 22static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = { 23SND_SOC_DAPM_INPUT("VINP"), 24SND_SOC_DAPM_INPUT("VINN"), 25SND_SOC_DAPM_OUTPUT("VOUTN"), 26SND_SOC_DAPM_OUTPUT("VOUTP"), 27}; 28 29static const struct snd_soc_dapm_route ad73311_dapm_routes[] = { 30 { "Capture", NULL, "VINP" }, 31 { "Capture", NULL, "VINN" }, 32 33 { "VOUTN", NULL, "Playback" }, 34 { "VOUTP", NULL, "Playback" }, 35}; 36 37static struct snd_soc_dai_driver ad73311_dai = { 38 .name = "ad73311-hifi", 39 .playback = { 40 .stream_name = "Playback", 41 .channels_min = 1, 42 .channels_max = 1, 43 .rates = SNDRV_PCM_RATE_8000, 44 .formats = SNDRV_PCM_FMTBIT_S16_LE, }, 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 53static const struct snd_soc_component_driver soc_component_dev_ad73311 = { 54 .dapm_widgets = ad73311_dapm_widgets, 55 .num_dapm_widgets = ARRAY_SIZE(ad73311_dapm_widgets), 56 .dapm_routes = ad73311_dapm_routes, 57 .num_dapm_routes = ARRAY_SIZE(ad73311_dapm_routes), 58 .idle_bias_on = 1, 59 .use_pmdown_time = 1, 60 .endianness = 1, 61 .non_legacy_dai_naming = 1, 62}; 63 64static int ad73311_probe(struct platform_device *pdev) 65{ 66 return devm_snd_soc_register_component(&pdev->dev, 67 &soc_component_dev_ad73311, &ad73311_dai, 1); 68} 69 70static struct platform_driver ad73311_codec_driver = { 71 .driver = { 72 .name = "ad73311", 73 }, 74 75 .probe = ad73311_probe, 76}; 77 78module_platform_driver(ad73311_codec_driver); 79 80MODULE_DESCRIPTION("ASoC ad73311 driver"); 81MODULE_AUTHOR("Cliff Cai "); 82MODULE_LICENSE("GPL");