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 
mt8173_rt5650_rt5676_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)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 = asoc_substream_to_rtd(substream);
51 	struct snd_soc_dai *codec_dai;
52 	int i, ret;
53 
54 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
55 		/* pll from mclk 12.288M */
56 		ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS,
57 					  params_rate(params) * 512);
58 		if (ret)
59 			return ret;
60 
61 		/* sysclk from pll */
62 		ret = snd_soc_dai_set_sysclk(codec_dai, 1,
63 					     params_rate(params) * 512,
64 					     SND_SOC_CLOCK_IN);
65 		if (ret)
66 			return ret;
67 	}
68 	return 0;
69 }
70 
71 static const struct snd_soc_ops mt8173_rt5650_rt5676_ops = {
72 	.hw_params = mt8173_rt5650_rt5676_hw_params,
73 };
74 
75 static struct snd_soc_jack mt8173_rt5650_rt5676_jack;
76 
mt8173_rt5650_rt5676_init(struct snd_soc_pcm_runtime * runtime)77 static int mt8173_rt5650_rt5676_init(struct snd_soc_pcm_runtime *runtime)
78 {
79 	struct snd_soc_card *card = runtime->card;
80 	struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component;
81 	struct snd_soc_component *component_sub = asoc_rtd_to_codec(runtime, 1)->component;
82 	int ret;
83 
84 	rt5645_sel_asrc_clk_src(component,
85 				RT5645_DA_STEREO_FILTER |
86 				RT5645_AD_STEREO_FILTER,
87 				RT5645_CLK_SEL_I2S1_ASRC);
88 	rt5677_sel_asrc_clk_src(component_sub,
89 				RT5677_DA_STEREO_FILTER |
90 				RT5677_AD_STEREO1_FILTER,
91 				RT5677_CLK_SEL_I2S1_ASRC);
92 	rt5677_sel_asrc_clk_src(component_sub,
93 				RT5677_AD_STEREO2_FILTER |
94 				RT5677_I2S2_SOURCE,
95 				RT5677_CLK_SEL_I2S2_ASRC);
96 
97 	/* enable jack detection */
98 	ret = snd_soc_card_jack_new(card, "Headset Jack",
99 				    SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
100 				    SND_JACK_BTN_0 | SND_JACK_BTN_1 |
101 				    SND_JACK_BTN_2 | SND_JACK_BTN_3,
102 				    &mt8173_rt5650_rt5676_jack);
103 	if (ret) {
104 		dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
105 		return ret;
106 	}
107 
108 	return rt5645_set_jack_detect(component,
109 				      &mt8173_rt5650_rt5676_jack,
110 				      &mt8173_rt5650_rt5676_jack,
111 				      &mt8173_rt5650_rt5676_jack);
112 }
113 
114 
115 enum {
116 	DAI_LINK_PLAYBACK,
117 	DAI_LINK_CAPTURE,
118 	DAI_LINK_HDMI,
119 	DAI_LINK_CODEC_I2S,
120 	DAI_LINK_HDMI_I2S,
121 	DAI_LINK_INTERCODEC
122 };
123 
124 SND_SOC_DAILINK_DEFS(playback,
125 	DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
126 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
127 	DAILINK_COMP_ARRAY(COMP_EMPTY()));
128 
129 SND_SOC_DAILINK_DEFS(capture,
130 	DAILINK_COMP_ARRAY(COMP_CPU("VUL")),
131 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
132 	DAILINK_COMP_ARRAY(COMP_EMPTY()));
133 
134 SND_SOC_DAILINK_DEFS(hdmi_pcm,
135 	DAILINK_COMP_ARRAY(COMP_CPU("HDMI")),
136 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
137 	DAILINK_COMP_ARRAY(COMP_EMPTY()));
138 
139 SND_SOC_DAILINK_DEFS(codec,
140 	DAILINK_COMP_ARRAY(COMP_CPU("I2S")),
141 	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1"),
142 			   COMP_CODEC(NULL, "rt5677-aif1")),
143 	DAILINK_COMP_ARRAY(COMP_EMPTY()));
144 
145 SND_SOC_DAILINK_DEFS(hdmi_be,
146 	DAILINK_COMP_ARRAY(COMP_CPU("HDMIO")),
147 	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")),
148 	DAILINK_COMP_ARRAY(COMP_EMPTY()));
149 
150 SND_SOC_DAILINK_DEFS(intercodec,
151 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
152 	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5677-aif2")),
153 	DAILINK_COMP_ARRAY(COMP_DUMMY()));
154 
155 /* Digital audio interface glue - connects codec <---> CPU */
156 static struct snd_soc_dai_link mt8173_rt5650_rt5676_dais[] = {
157 	/* Front End DAI links */
158 	[DAI_LINK_PLAYBACK] = {
159 		.name = "rt5650_rt5676 Playback",
160 		.stream_name = "rt5650_rt5676 Playback",
161 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
162 		.dynamic = 1,
163 		.dpcm_playback = 1,
164 		SND_SOC_DAILINK_REG(playback),
165 	},
166 	[DAI_LINK_CAPTURE] = {
167 		.name = "rt5650_rt5676 Capture",
168 		.stream_name = "rt5650_rt5676 Capture",
169 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
170 		.dynamic = 1,
171 		.dpcm_capture = 1,
172 		SND_SOC_DAILINK_REG(capture),
173 	},
174 	[DAI_LINK_HDMI] = {
175 		.name = "HDMI",
176 		.stream_name = "HDMI PCM",
177 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
178 		.dynamic = 1,
179 		.dpcm_playback = 1,
180 		SND_SOC_DAILINK_REG(hdmi_pcm),
181 	},
182 
183 	/* Back End DAI links */
184 	[DAI_LINK_CODEC_I2S] = {
185 		.name = "Codec",
186 		.no_pcm = 1,
187 		.init = mt8173_rt5650_rt5676_init,
188 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
189 			   SND_SOC_DAIFMT_CBS_CFS,
190 		.ops = &mt8173_rt5650_rt5676_ops,
191 		.ignore_pmdown_time = 1,
192 		.dpcm_playback = 1,
193 		.dpcm_capture = 1,
194 		SND_SOC_DAILINK_REG(codec),
195 	},
196 	[DAI_LINK_HDMI_I2S] = {
197 		.name = "HDMI BE",
198 		.no_pcm = 1,
199 		.dpcm_playback = 1,
200 		SND_SOC_DAILINK_REG(hdmi_be),
201 	},
202 	/* rt5676 <-> rt5650 intercodec link: Sets rt5676 I2S2 as master */
203 	[DAI_LINK_INTERCODEC] = {
204 		.name = "rt5650_rt5676 intercodec",
205 		.stream_name = "rt5650_rt5676 intercodec",
206 		.no_pcm = 1,
207 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
208 			   SND_SOC_DAIFMT_CBM_CFM,
209 		SND_SOC_DAILINK_REG(intercodec),
210 	},
211 };
212 
213 static struct snd_soc_codec_conf mt8173_rt5650_rt5676_codec_conf[] = {
214 	{
215 		.name_prefix = "Sub",
216 	},
217 };
218 
219 static struct snd_soc_card mt8173_rt5650_rt5676_card = {
220 	.name = "mtk-rt5650-rt5676",
221 	.owner = THIS_MODULE,
222 	.dai_link = mt8173_rt5650_rt5676_dais,
223 	.num_links = ARRAY_SIZE(mt8173_rt5650_rt5676_dais),
224 	.codec_conf = mt8173_rt5650_rt5676_codec_conf,
225 	.num_configs = ARRAY_SIZE(mt8173_rt5650_rt5676_codec_conf),
226 	.controls = mt8173_rt5650_rt5676_controls,
227 	.num_controls = ARRAY_SIZE(mt8173_rt5650_rt5676_controls),
228 	.dapm_widgets = mt8173_rt5650_rt5676_widgets,
229 	.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_rt5676_widgets),
230 	.dapm_routes = mt8173_rt5650_rt5676_routes,
231 	.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_rt5676_routes),
232 };
233 
mt8173_rt5650_rt5676_dev_probe(struct platform_device * pdev)234 static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
235 {
236 	struct snd_soc_card *card = &mt8173_rt5650_rt5676_card;
237 	struct device_node *platform_node;
238 	struct snd_soc_dai_link *dai_link;
239 	int i, ret;
240 
241 	platform_node = of_parse_phandle(pdev->dev.of_node,
242 					 "mediatek,platform", 0);
243 	if (!platform_node) {
244 		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
245 		return -EINVAL;
246 	}
247 
248 	for_each_card_prelinks(card, i, dai_link) {
249 		if (dai_link->platforms->name)
250 			continue;
251 		dai_link->platforms->of_node = platform_node;
252 	}
253 
254 	mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node =
255 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
256 	if (!mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {
257 		dev_err(&pdev->dev,
258 			"Property 'audio-codec' missing or invalid\n");
259 		ret = -EINVAL;
260 		goto put_node;
261 	}
262 	mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =
263 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
264 	if (!mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node) {
265 		dev_err(&pdev->dev,
266 			"Property 'audio-codec' missing or invalid\n");
267 		ret = -EINVAL;
268 		goto put_node;
269 	}
270 	mt8173_rt5650_rt5676_codec_conf[0].dlc.of_node =
271 		mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node;
272 
273 	mt8173_rt5650_rt5676_dais[DAI_LINK_INTERCODEC].codecs->of_node =
274 		mt8173_rt5650_rt5676_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node;
275 
276 	mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codecs->of_node =
277 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 2);
278 	if (!mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {
279 		dev_err(&pdev->dev,
280 			"Property 'audio-codec' missing or invalid\n");
281 		ret = -EINVAL;
282 		goto put_node;
283 	}
284 
285 	card->dev = &pdev->dev;
286 
287 	ret = devm_snd_soc_register_card(&pdev->dev, card);
288 
289 put_node:
290 	of_node_put(platform_node);
291 	return ret;
292 }
293 
294 static const struct of_device_id mt8173_rt5650_rt5676_dt_match[] = {
295 	{ .compatible = "mediatek,mt8173-rt5650-rt5676", },
296 	{ }
297 };
298 MODULE_DEVICE_TABLE(of, mt8173_rt5650_rt5676_dt_match);
299 
300 static struct platform_driver mt8173_rt5650_rt5676_driver = {
301 	.driver = {
302 		   .name = "mtk-rt5650-rt5676",
303 		   .of_match_table = mt8173_rt5650_rt5676_dt_match,
304 		   .pm = &snd_soc_pm_ops,
305 	},
306 	.probe = mt8173_rt5650_rt5676_dev_probe,
307 };
308 
309 module_platform_driver(mt8173_rt5650_rt5676_driver);
310 
311 /* Module information */
312 MODULE_DESCRIPTION("MT8173 RT5650 and RT5676 SoC machine driver");
313 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
314 MODULE_LICENSE("GPL v2");
315 MODULE_ALIAS("platform:mtk-rt5650-rt5676");
316 
317