1// SPDX-License-Identifier: GPL-2.0
2/*
3 * mt7986-wm8960.c  --  MT7986-WM8960 ALSA SoC machine driver
4 *
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