178 lines · c
1// SPDX-License-Identifier: GPL-2.02/*3 * mt7986-wm8960.c -- MT7986-WM8960 ALSA SoC machine driver4 *5 * Copyright (c) 2023 MediaTek Inc.6 * Authors: Vic Wu <vic.wu@mediatek.com>7 * Maso Huang <maso.huang@mediatek.com>8 */9 10#include <linux/module.h>11#include <sound/soc.h>12 13#include "mt7986-afe-common.h"14 15static const struct snd_soc_dapm_widget mt7986_wm8960_widgets[] = {16 SND_SOC_DAPM_HP("Headphone", NULL),17 SND_SOC_DAPM_MIC("AMIC", NULL),18};19 20static const struct snd_kcontrol_new mt7986_wm8960_controls[] = {21 SOC_DAPM_PIN_SWITCH("Headphone"),22 SOC_DAPM_PIN_SWITCH("AMIC"),23};24 25SND_SOC_DAILINK_DEFS(playback,26 DAILINK_COMP_ARRAY(COMP_CPU("DL1")),27 DAILINK_COMP_ARRAY(COMP_DUMMY()),28 DAILINK_COMP_ARRAY(COMP_EMPTY()));29 30SND_SOC_DAILINK_DEFS(capture,31 DAILINK_COMP_ARRAY(COMP_CPU("UL1")),32 DAILINK_COMP_ARRAY(COMP_DUMMY()),33 DAILINK_COMP_ARRAY(COMP_EMPTY()));34 35SND_SOC_DAILINK_DEFS(codec,36 DAILINK_COMP_ARRAY(COMP_CPU("ETDM")),37 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")),38 DAILINK_COMP_ARRAY(COMP_EMPTY()));39 40static struct snd_soc_dai_link mt7986_wm8960_dai_links[] = {41 /* FE */42 {43 .name = "wm8960-playback",44 .stream_name = "wm8960-playback",45 .trigger = {SND_SOC_DPCM_TRIGGER_POST,46 SND_SOC_DPCM_TRIGGER_POST},47 .dynamic = 1,48 .dpcm_playback = 1,49 SND_SOC_DAILINK_REG(playback),50 },51 {52 .name = "wm8960-capture",53 .stream_name = "wm8960-capture",54 .trigger = {SND_SOC_DPCM_TRIGGER_POST,55 SND_SOC_DPCM_TRIGGER_POST},56 .dynamic = 1,57 .dpcm_capture = 1,58 SND_SOC_DAILINK_REG(capture),59 },60 /* BE */61 {62 .name = "wm8960-codec",63 .no_pcm = 1,64 .dai_fmt = SND_SOC_DAIFMT_I2S |65 SND_SOC_DAIFMT_NB_NF |66 SND_SOC_DAIFMT_CBS_CFS |67 SND_SOC_DAIFMT_GATED,68 .dpcm_playback = 1,69 .dpcm_capture = 1,70 SND_SOC_DAILINK_REG(codec),71 },72};73 74static struct snd_soc_card mt7986_wm8960_card = {75 .name = "mt7986-wm8960",76 .owner = THIS_MODULE,77 .dai_link = mt7986_wm8960_dai_links,78 .num_links = ARRAY_SIZE(mt7986_wm8960_dai_links),79 .controls = mt7986_wm8960_controls,80 .num_controls = ARRAY_SIZE(mt7986_wm8960_controls),81 .dapm_widgets = mt7986_wm8960_widgets,82 .num_dapm_widgets = ARRAY_SIZE(mt7986_wm8960_widgets),83};84 85static int mt7986_wm8960_machine_probe(struct platform_device *pdev)86{87 struct snd_soc_card *card = &mt7986_wm8960_card;88 struct snd_soc_dai_link *dai_link;89 struct device_node *platform, *codec;90 struct device_node *platform_dai_node, *codec_dai_node;91 int ret, i;92 93 card->dev = &pdev->dev;94 95 platform = of_get_child_by_name(pdev->dev.of_node, "platform");96 97 if (platform) {98 platform_dai_node = of_parse_phandle(platform, "sound-dai", 0);99 of_node_put(platform);100 101 if (!platform_dai_node) {102 dev_err(&pdev->dev, "Failed to parse platform/sound-dai property\n");103 return -EINVAL;104 }105 } else {106 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");107 return -EINVAL;108 }109 110 for_each_card_prelinks(card, i, dai_link) {111 if (dai_link->platforms->name)112 continue;113 dai_link->platforms->of_node = platform_dai_node;114 }115 116 codec = of_get_child_by_name(pdev->dev.of_node, "codec");117 118 if (codec) {119 codec_dai_node = of_parse_phandle(codec, "sound-dai", 0);120 of_node_put(codec);121 122 if (!codec_dai_node) {123 of_node_put(platform_dai_node);124 dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");125 return -EINVAL;126 }127 } else {128 of_node_put(platform_dai_node);129 dev_err(&pdev->dev, "Property 'codec' missing or invalid\n");130 return -EINVAL;131 }132 133 for_each_card_prelinks(card, i, dai_link) {134 if (dai_link->codecs->name)135 continue;136 dai_link->codecs->of_node = codec_dai_node;137 }138 139 ret = snd_soc_of_parse_audio_routing(card, "audio-routing");140 if (ret) {141 dev_err(&pdev->dev, "Failed to parse audio-routing: %d\n", ret);142 goto err_of_node_put;143 }144 145 ret = devm_snd_soc_register_card(&pdev->dev, card);146 if (ret) {147 dev_err_probe(&pdev->dev, ret, "%s snd_soc_register_card fail\n", __func__);148 goto err_of_node_put;149 }150 151err_of_node_put:152 of_node_put(platform_dai_node);153 of_node_put(codec_dai_node);154 return ret;155}156 157static const struct of_device_id mt7986_wm8960_machine_dt_match[] = {158 {.compatible = "mediatek,mt7986-wm8960-sound"},159 { /* sentinel */ }160};161MODULE_DEVICE_TABLE(of, mt7986_wm8960_machine_dt_match);162 163static struct platform_driver mt7986_wm8960_machine = {164 .driver = {165 .name = "mt7986-wm8960",166 .of_match_table = mt7986_wm8960_machine_dt_match,167 },168 .probe = mt7986_wm8960_machine_probe,169};170 171module_platform_driver(mt7986_wm8960_machine);172 173/* Module information */174MODULE_DESCRIPTION("MT7986 WM8960 ALSA SoC machine driver");175MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>");176MODULE_LICENSE("GPL");177MODULE_ALIAS("mt7986 wm8960 soc card");178