1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * mt8173-rt5650-rt5676.c  --  MT8173 machine driver with RT5650/5676 codecs
4  *
5  * Copyright (c) 2015 MediaTek Inc.
6  * Author: Koro Chen <koro.chen@mediatek.com>
7  */
8 
9 #include <linux/module.h>
10 #include <linux/gpio.h>
11 #include <linux/of_gpio.h>
12 #include <sound/soc.h>
13 #include <sound/jack.h>
14 #include "../../codecs/rt5645.h"
15 #include "../../codecs/rt5677.h"
16 
17 #define MCLK_FOR_CODECS		12288000
18 
19 static const struct snd_soc_dapm_widget mt8173_rt5650_rt5676_widgets[] = {
20 	SND_SOC_DAPM_SPK("Speaker", NULL),
21 	SND_SOC_DAPM_MIC("Int Mic", NULL),
22 	SND_SOC_DAPM_HP("Headphone", NULL),
23 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
24 };
25 
26 static const struct snd_soc_dapm_route mt8173_rt5650_rt5676_routes[] = {
27 	{"Speaker", NULL, "SPOL"},
28 	{"Speaker", NULL, "SPOR"},
29 	{"Speaker", NULL, "Sub AIF2TX"}, /* IF2 ADC to 5650  */
30 	{"Sub DMIC L1", NULL, "Int Mic"}, /* DMIC from 5676 */
31 	{"Sub DMIC R1", NULL, "Int Mic"},
32 	{"Headphone", NULL, "HPOL"},
33 	{"Headphone", NULL, "HPOR"},
34 	{"Headphone", NULL, "Sub AIF2TX"}, /* IF2 ADC to 5650  */
35 	{"IN1P", NULL, "Headset Mic"},
36 	{"IN1N", NULL, "Headset Mic"},
37 	{"Sub AIF2RX", NULL, "Headset Mic"}, /* IF2 DAC from 5650  */
38 };
39 
40 static const struct snd_kcontrol_new mt8173_rt5650_rt5676_controls[] = {
41 	SOC_DAPM_PIN_SWITCH("Speaker"),
42 	SOC_DAPM_PIN_SWITCH("Int Mic"),
43 	SOC_DAPM_PIN_SWITCH("Headphone"),
44 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
45 };
46 
47 static int mt8173_rt5650_rt5676_hw_params(struct snd_pcm_substream *substream,
48 					  struct snd_pcm_hw_params *params)
49 {
50 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
51 	int i, ret;
52 
53 	for (i = 0; i < rtd->num_codecs; i++) {
54 		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
55 
56 		/* pll from mclk 12.288M */
57 		ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS,
58 					  params_rate(params) * 512);
59 		if (ret)
60 			return ret;
61 
62 		/* sysclk from pll */
63 		ret = snd_soc_dai_set_sysclk(codec_dai, 1,
64 					     params_rate(params) * 512,
65 					     SND_SOC_CLOCK_IN);
66 		if (ret)
67 			return ret;
68 	}
69 	return 0;
70 }
71 
72 static const struct snd_soc_ops mt8173_rt5650_rt5676_ops = {
73 	.hw_params = mt8173_rt5650_rt5676_hw_params,
74 };
75 
76 static struct snd_soc_jack mt8173_rt5650_rt5676_jack;
77 
78 static int mt8173_rt5650_rt5676_init(struct snd_soc_pcm_runtime *runtime)
79 {
80 	struct snd_soc_card *card = runtime->card;
81 	struct snd_soc_component *component = runtime->codec_dais[0]->component;
82 	struct snd_soc_component *component_sub = runtime->codec_dais[1]->component;
83 	int ret;
84 
85 	rt5645_sel_asrc_clk_src(component,
86 				RT5645_DA_STEREO_FILTER |
87 				RT5645_AD_STEREO_FILTER,
88 				RT5645_CLK_SEL_I2S1_ASRC);
89 	rt5677_sel_asrc_clk_src(component_sub,
90 				RT5677_DA_STEREO_FILTER |
91 				RT5677_AD_STEREO1_FILTER,
92 				RT5677_CLK_SEL_I2S1_ASRC);
93 	rt5677_sel_asrc_clk_src(component_sub,
94 				RT5677_AD_STEREO2_FILTER |
95 				RT5677_I2S2_SOURCE,
96 				RT5677_CLK_SEL_I2S2_ASRC);
97 
98 	/* enable jack detection */
99 	ret = snd_soc_card_jack_new(card, "Headset Jack",
100 				    SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
101 				    SND_JACK_BTN_0 | SND_JACK_BTN_1 |
102 				    SND_JACK_BTN_2 | SND_JACK_BTN_3,
103 				    &mt8173_rt5650_rt5676_jack, NULL, 0);
104 	if (ret) {
105 		dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
106 		return ret;
107 	}
108 
109 	return rt5645_set_jack_detect(component,
110 				      &mt8173_rt5650_rt5676_jack,
111 				      &mt8173_rt5650_rt5676_jack,
112 				      &mt8173_rt5650_rt5676_jack);
113 }
114 
115 static struct snd_soc_dai_link_component mt8173_rt5650_rt5676_codecs[] = {
116 	{
117 		.dai_name = "rt5645-aif1",
118 	},
119 	{
120 		.dai_name = "rt5677-aif1",
121 	},
122 };
123 
124 enum {
125 	DAI_LINK_PLAYBACK,
126 	DAI_LINK_CAPTURE,
127 	DAI_LINK_HDMI,
128 	DAI_LINK_CODEC_I2S,
129 	DAI_LINK_HDMI_I2S,
130 	DAI_LINK_INTERCODEC
131 };
132 
133 /* Digital audio interface glue - connects codec <---> CPU */
134 static struct snd_soc_dai_link mt8173_rt5650_rt5676_dais[] = {
135 	/* Front End DAI links */
136 	[DAI_LINK_PLAYBACK] = {
137 		.name = "rt5650_rt5676 Playback",
138 		.stream_name = "rt5650_rt5676 Playback",
139 		.cpu_dai_name = "DL1",
140 		.codec_name = "snd-soc-dummy",
141 		.codec_dai_name = "snd-soc-dummy-dai",
142 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
143 		.dynamic = 1,
144 		.dpcm_playback = 1,
145 	},
146 	[DAI_LINK_CAPTURE] = {
147 		.name = "rt5650_rt5676 Capture",
148 		.stream_name = "rt5650_rt5676 Capture",
149 		.cpu_dai_name = "VUL",
150 		.codec_name = "snd-soc-dummy",
151 		.codec_dai_name = "snd-soc-dummy-dai",
152 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
153 		.dynamic = 1,
154 		.dpcm_capture = 1,
155 	},
156 	[DAI_LINK_HDMI] = {
157 		.name = "HDMI",
158 		.stream_name = "HDMI PCM",
159 		.cpu_dai_name = "HDMI",
160 		.codec_name = "snd-soc-dummy",
161 		.codec_dai_name = "snd-soc-dummy-dai",
162 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
163 		.dynamic = 1,
164 		.dpcm_playback = 1,
165 	},
166 
167 	/* Back End DAI links */
168 	[DAI_LINK_CODEC_I2S] = {
169 		.name = "Codec",
170 		.cpu_dai_name = "I2S",
171 		.no_pcm = 1,
172 		.codecs = mt8173_rt5650_rt5676_codecs,
173 		.num_codecs = 2,
174 		.init = mt8173_rt5650_rt5676_init,
175 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
176 			   SND_SOC_DAIFMT_CBS_CFS,
177 		.ops = &mt8173_rt5650_rt5676_ops,
178 		.ignore_pmdown_time = 1,
179 		.dpcm_playback = 1,
180 		.dpcm_capture = 1,
181 	},
182 	[DAI_LINK_HDMI_I2S] = {
183 		.name = "HDMI BE",
184 		.cpu_dai_name = "HDMIO",
185 		.no_pcm = 1,
186 		.codec_dai_name = "i2s-hifi",
187 		.dpcm_playback = 1,
188 	},
189 	/* rt5676 <-> rt5650 intercodec link: Sets rt5676 I2S2 as master */
190 	[DAI_LINK_INTERCODEC] = {
191 		.name = "rt5650_rt5676 intercodec",
192 		.stream_name = "rt5650_rt5676 intercodec",
193 		.cpu_dai_name = "snd-soc-dummy-dai",
194 		.platform_name = "snd-soc-dummy",
195 		.no_pcm = 1,
196 		.codec_dai_name = "rt5677-aif2",
197 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
198 			   SND_SOC_DAIFMT_CBM_CFM,
199 	},
200 
201 };
202 
203 static struct snd_soc_codec_conf mt8173_rt5650_rt5676_codec_conf[] = {
204 	{
205 		.name_prefix = "Sub",
206 	},
207 };
208 
209 static struct snd_soc_card mt8173_rt5650_rt5676_card = {
210 	.name = "mtk-rt5650-rt5676",
211 	.owner = THIS_MODULE,
212 	.dai_link = mt8173_rt5650_rt5676_dais,
213 	.num_links = ARRAY_SIZE(mt8173_rt5650_rt5676_dais),
214 	.codec_conf = mt8173_rt5650_rt5676_codec_conf,
215 	.num_configs = ARRAY_SIZE(mt8173_rt5650_rt5676_codec_conf),
216 	.controls = mt8173_rt5650_rt5676_controls,
217 	.num_controls = ARRAY_SIZE(mt8173_rt5650_rt5676_controls),
218 	.dapm_widgets = mt8173_rt5650_rt5676_widgets,
219 	.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_rt5676_widgets),
220 	.dapm_routes = mt8173_rt5650_rt5676_routes,
221 	.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_rt5676_routes),
222 };
223 
224 static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
225 {
226 	struct snd_soc_card *card = &mt8173_rt5650_rt5676_card;
227 	struct device_node *platform_node;
228 	int i, ret;
229 
230 	platform_node = of_parse_phandle(pdev->dev.of_node,
231 					 "mediatek,platform", 0);
232 	if (!platform_node) {
233 		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
234 		return -EINVAL;
235 	}
236 
237 	for (i = 0; i < card->num_links; i++) {
238 		if (mt8173_rt5650_rt5676_dais[i].platform_name)
239 			continue;
240 		mt8173_rt5650_rt5676_dais[i].platform_of_node = platform_node;
241 	}
242 
243 	mt8173_rt5650_rt5676_codecs[0].of_node =
244 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
245 	if (!mt8173_rt5650_rt5676_codecs[0].of_node) {
246 		dev_err(&pdev->dev,
247 			"Property 'audio-codec' missing or invalid\n");
248 		return -EINVAL;
249 	}
250 	mt8173_rt5650_rt5676_codecs[1].of_node =
251 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
252 	if (!mt8173_rt5650_rt5676_codecs[1].of_node) {
253 		dev_err(&pdev->dev,
254 			"Property 'audio-codec' missing or invalid\n");
255 		return -EINVAL;
256 	}
257 	mt8173_rt5650_rt5676_codec_conf[0].of_node =
258 		mt8173_rt5650_rt5676_codecs[1].of_node;
259 
260 	mt8173_rt5650_rt5676_dais[DAI_LINK_INTERCODEC].codec_of_node =
261 		mt8173_rt5650_rt5676_codecs[1].of_node;
262 
263 	mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codec_of_node =
264 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 2);
265 	if (!mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codec_of_node) {
266 		dev_err(&pdev->dev,
267 			"Property 'audio-codec' missing or invalid\n");
268 		return -EINVAL;
269 	}
270 
271 	card->dev = &pdev->dev;
272 
273 	ret = devm_snd_soc_register_card(&pdev->dev, card);
274 	if (ret)
275 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
276 			__func__, ret);
277 	return ret;
278 }
279 
280 static const struct of_device_id mt8173_rt5650_rt5676_dt_match[] = {
281 	{ .compatible = "mediatek,mt8173-rt5650-rt5676", },
282 	{ }
283 };
284 MODULE_DEVICE_TABLE(of, mt8173_rt5650_rt5676_dt_match);
285 
286 static struct platform_driver mt8173_rt5650_rt5676_driver = {
287 	.driver = {
288 		   .name = "mtk-rt5650-rt5676",
289 		   .of_match_table = mt8173_rt5650_rt5676_dt_match,
290 #ifdef CONFIG_PM
291 		   .pm = &snd_soc_pm_ops,
292 #endif
293 	},
294 	.probe = mt8173_rt5650_rt5676_dev_probe,
295 };
296 
297 module_platform_driver(mt8173_rt5650_rt5676_driver);
298 
299 /* Module information */
300 MODULE_DESCRIPTION("MT8173 RT5650 and RT5676 SoC machine driver");
301 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
302 MODULE_LICENSE("GPL v2");
303 MODULE_ALIAS("platform:mtk-rt5650-rt5676");
304 
305