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 22 static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = { 23 SND_SOC_DAPM_INPUT("VINP"), 24 SND_SOC_DAPM_INPUT("VINN"), 25 SND_SOC_DAPM_OUTPUT("VOUTN"), 26 SND_SOC_DAPM_OUTPUT("VOUTP"), 27 }; 28 29 static 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 37 static 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 53 static 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 }; 62 63 static int ad73311_probe(struct platform_device *pdev) 64 { 65 return devm_snd_soc_register_component(&pdev->dev, 66 &soc_component_dev_ad73311, &ad73311_dai, 1); 67 } 68 69 static struct platform_driver ad73311_codec_driver = { 70 .driver = { 71 .name = "ad73311", 72 }, 73 74 .probe = ad73311_probe, 75 }; 76 77 module_platform_driver(ad73311_codec_driver); 78 79 MODULE_DESCRIPTION("ASoC ad73311 driver"); 80 MODULE_AUTHOR("Cliff Cai "); 81 MODULE_LICENSE("GPL"); 82