developer | be797a3 | 2021-12-16 16:56:09 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * mt79xx-wm8960.c -- MT79xx WM8960 ALSA SoC machine driver |
| 4 | * |
| 5 | * Copyright (c) 2021 MediaTek Inc. |
| 6 | * Author: Vic Wu <vic.wu@mediatek.com> |
| 7 | */ |
| 8 | |
| 9 | #include <linux/module.h> |
| 10 | #include <sound/soc.h> |
| 11 | |
| 12 | #include "mt79xx-afe-common.h" |
| 13 | |
| 14 | struct mt79xx_wm8960_priv { |
| 15 | struct device_node *platform_node; |
| 16 | struct device_node *codec_node; |
| 17 | }; |
| 18 | |
| 19 | static const struct snd_soc_dapm_widget mt79xx_wm8960_widgets[] = { |
| 20 | SND_SOC_DAPM_HP("Headphone", NULL), |
| 21 | SND_SOC_DAPM_MIC("AMIC", NULL), |
| 22 | }; |
| 23 | |
| 24 | static const struct snd_kcontrol_new mt79xx_wm8960_controls[] = { |
| 25 | SOC_DAPM_PIN_SWITCH("Headphone"), |
| 26 | SOC_DAPM_PIN_SWITCH("AMIC"), |
| 27 | }; |
| 28 | |
| 29 | SND_SOC_DAILINK_DEFS(playback, |
| 30 | DAILINK_COMP_ARRAY(COMP_CPU("DL1")), |
| 31 | DAILINK_COMP_ARRAY(COMP_DUMMY()), |
| 32 | DAILINK_COMP_ARRAY(COMP_EMPTY())); |
| 33 | |
| 34 | SND_SOC_DAILINK_DEFS(capture, |
| 35 | DAILINK_COMP_ARRAY(COMP_CPU("UL1")), |
| 36 | DAILINK_COMP_ARRAY(COMP_DUMMY()), |
| 37 | DAILINK_COMP_ARRAY(COMP_EMPTY())); |
| 38 | |
| 39 | SND_SOC_DAILINK_DEFS(codec, |
| 40 | DAILINK_COMP_ARRAY(COMP_CPU("ETDM")), |
| 41 | DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")), |
| 42 | DAILINK_COMP_ARRAY(COMP_EMPTY())); |
| 43 | |
| 44 | static struct snd_soc_dai_link mt79xx_wm8960_dai_links[] = { |
| 45 | /* FE */ |
| 46 | { |
| 47 | .name = "wm8960-playback", |
| 48 | .stream_name = "wm8960-playback", |
| 49 | .trigger = {SND_SOC_DPCM_TRIGGER_POST, |
| 50 | SND_SOC_DPCM_TRIGGER_POST}, |
| 51 | .dynamic = 1, |
| 52 | .dpcm_playback = 1, |
| 53 | SND_SOC_DAILINK_REG(playback), |
| 54 | }, |
| 55 | { |
| 56 | .name = "wm8960-capture", |
| 57 | .stream_name = "wm8960-capture", |
| 58 | .trigger = {SND_SOC_DPCM_TRIGGER_POST, |
| 59 | SND_SOC_DPCM_TRIGGER_POST}, |
| 60 | .dynamic = 1, |
| 61 | .dpcm_capture = 1, |
| 62 | SND_SOC_DAILINK_REG(capture), |
| 63 | }, |
| 64 | /* BE */ |
| 65 | { |
| 66 | .name = "wm8960-codec", |
| 67 | .no_pcm = 1, |
| 68 | .dai_fmt = SND_SOC_DAIFMT_I2S | |
| 69 | SND_SOC_DAIFMT_NB_NF | |
| 70 | SND_SOC_DAIFMT_CBS_CFS | |
| 71 | SND_SOC_DAIFMT_GATED, |
| 72 | .dpcm_playback = 1, |
| 73 | .dpcm_capture = 1, |
| 74 | SND_SOC_DAILINK_REG(codec), |
| 75 | }, |
| 76 | }; |
| 77 | |
| 78 | static struct snd_soc_card mt79xx_wm8960_card = { |
| 79 | .name = "mt79xx-wm8960", |
| 80 | .owner = THIS_MODULE, |
| 81 | .dai_link = mt79xx_wm8960_dai_links, |
| 82 | .num_links = ARRAY_SIZE(mt79xx_wm8960_dai_links), |
| 83 | .controls = mt79xx_wm8960_controls, |
| 84 | .num_controls = ARRAY_SIZE(mt79xx_wm8960_controls), |
| 85 | .dapm_widgets = mt79xx_wm8960_widgets, |
| 86 | .num_dapm_widgets = ARRAY_SIZE(mt79xx_wm8960_widgets), |
| 87 | }; |
| 88 | |
| 89 | static int mt79xx_wm8960_machine_probe(struct platform_device *pdev) |
| 90 | { |
| 91 | struct snd_soc_card *card = &mt79xx_wm8960_card; |
| 92 | struct snd_soc_dai_link *dai_link; |
| 93 | struct mt79xx_wm8960_priv *priv; |
| 94 | int ret, i; |
| 95 | |
| 96 | priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); |
| 97 | if (!priv) |
| 98 | return -ENOMEM; |
| 99 | |
| 100 | priv->platform_node = of_parse_phandle(pdev->dev.of_node, |
| 101 | "mediatek,platform", 0); |
| 102 | if (!priv->platform_node) { |
| 103 | dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); |
| 104 | return -EINVAL; |
| 105 | } |
| 106 | |
| 107 | for_each_card_prelinks(card, i, dai_link) { |
| 108 | if (dai_link->platforms->name) |
| 109 | continue; |
| 110 | dai_link->platforms->of_node = priv->platform_node; |
| 111 | } |
| 112 | |
| 113 | card->dev = &pdev->dev; |
| 114 | |
| 115 | priv->codec_node = of_parse_phandle(pdev->dev.of_node, |
| 116 | "mediatek,audio-codec", 0); |
| 117 | if (!priv->codec_node) { |
| 118 | dev_err(&pdev->dev, |
| 119 | "Property 'audio-codec' missing or invalid\n"); |
| 120 | of_node_put(priv->platform_node); |
| 121 | return -EINVAL; |
| 122 | } |
| 123 | |
| 124 | for_each_card_prelinks(card, i, dai_link) { |
| 125 | if (dai_link->codecs->name) |
| 126 | continue; |
| 127 | dai_link->codecs->of_node = priv->codec_node; |
| 128 | } |
| 129 | |
| 130 | ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); |
| 131 | if (ret) { |
| 132 | dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret); |
| 133 | goto err_of_node_put; |
| 134 | } |
| 135 | |
| 136 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
| 137 | if (ret) { |
| 138 | dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", |
| 139 | __func__, ret); |
| 140 | goto err_of_node_put; |
| 141 | } |
| 142 | |
| 143 | err_of_node_put: |
| 144 | of_node_put(priv->codec_node); |
| 145 | of_node_put(priv->platform_node); |
| 146 | return ret; |
| 147 | } |
| 148 | |
| 149 | static int mt79xx_wm8960_machine_remove(struct platform_device *pdev) |
| 150 | { |
| 151 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
| 152 | struct mt79xx_wm8960_priv *priv = snd_soc_card_get_drvdata(card); |
| 153 | |
| 154 | of_node_put(priv->codec_node); |
| 155 | of_node_put(priv->platform_node); |
| 156 | |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | #ifdef CONFIG_OF |
| 161 | static const struct of_device_id mt79xx_wm8960_machine_dt_match[] = { |
| 162 | {.compatible = "mediatek,mt79xx-wm8960-machine",}, |
| 163 | {} |
| 164 | }; |
| 165 | #endif |
| 166 | |
| 167 | static struct platform_driver mt79xx_wm8960_machine = { |
| 168 | .driver = { |
| 169 | .name = "mt79xx-wm8960", |
| 170 | #ifdef CONFIG_OF |
| 171 | .of_match_table = mt79xx_wm8960_machine_dt_match, |
| 172 | #endif |
| 173 | }, |
| 174 | .probe = mt79xx_wm8960_machine_probe, |
| 175 | .remove = mt79xx_wm8960_machine_remove, |
| 176 | }; |
| 177 | |
| 178 | module_platform_driver(mt79xx_wm8960_machine); |
| 179 | |
| 180 | /* Module information */ |
| 181 | MODULE_DESCRIPTION("MT79xx WM8960 ALSA SoC machine driver"); |
| 182 | MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>"); |
| 183 | MODULE_LICENSE("GPL"); |
| 184 | MODULE_ALIAS("mt79xx wm8960 soc card"); |