1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * mt8173-rt5650.c -- MT8173 machine driver with RT5650 codecs
4 *
5 * Copyright (c) 2016 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
16 #define MCLK_FOR_CODECS 12288000
17
18 enum mt8173_rt5650_mclk {
19 MT8173_RT5650_MCLK_EXTERNAL = 0,
20 MT8173_RT5650_MCLK_INTERNAL,
21 };
22
23 struct mt8173_rt5650_platform_data {
24 enum mt8173_rt5650_mclk pll_from;
25 /* 0 = external oscillator; 1 = internal source from mt8173 */
26 };
27
28 static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
29 .pll_from = MT8173_RT5650_MCLK_EXTERNAL,
30 };
31
32 static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
33 SND_SOC_DAPM_SPK("Ext Spk", NULL),
34 SND_SOC_DAPM_MIC("Int Mic", NULL),
35 SND_SOC_DAPM_HP("Headphone", NULL),
36 SND_SOC_DAPM_MIC("Headset Mic", NULL),
37 };
38
39 static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
40 {"Ext Spk", NULL, "SPOL"},
41 {"Ext Spk", NULL, "SPOR"},
42 {"DMIC L1", NULL, "Int Mic"},
43 {"DMIC R1", NULL, "Int Mic"},
44 {"Headphone", NULL, "HPOL"},
45 {"Headphone", NULL, "HPOR"},
46 {"IN1P", NULL, "Headset Mic"},
47 {"IN1N", NULL, "Headset Mic"},
48 };
49
50 static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
51 SOC_DAPM_PIN_SWITCH("Ext Spk"),
52 SOC_DAPM_PIN_SWITCH("Int Mic"),
53 SOC_DAPM_PIN_SWITCH("Headphone"),
54 SOC_DAPM_PIN_SWITCH("Headset Mic"),
55 };
56
mt8173_rt5650_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)57 static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
58 struct snd_pcm_hw_params *params)
59 {
60 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
61 unsigned int mclk_clock;
62 struct snd_soc_dai *codec_dai;
63 int i, ret;
64
65 switch (mt8173_rt5650_priv.pll_from) {
66 case MT8173_RT5650_MCLK_EXTERNAL:
67 /* mclk = 12.288M */
68 mclk_clock = MCLK_FOR_CODECS;
69 break;
70 case MT8173_RT5650_MCLK_INTERNAL:
71 /* mclk = sampling rate*256 */
72 mclk_clock = params_rate(params) * 256;
73 break;
74 default:
75 /* mclk = 12.288M */
76 mclk_clock = MCLK_FOR_CODECS;
77 break;
78 }
79
80 for_each_rtd_codec_dais(rtd, i, codec_dai) {
81 /* pll from mclk */
82 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
83 params_rate(params) * 512);
84 if (ret)
85 return ret;
86
87 /* sysclk from pll */
88 ret = snd_soc_dai_set_sysclk(codec_dai, 1,
89 params_rate(params) * 512,
90 SND_SOC_CLOCK_IN);
91 if (ret)
92 return ret;
93 }
94 return 0;
95 }
96
97 static const struct snd_soc_ops mt8173_rt5650_ops = {
98 .hw_params = mt8173_rt5650_hw_params,
99 };
100
101 static struct snd_soc_jack mt8173_rt5650_jack, mt8173_rt5650_hdmi_jack;
102
mt8173_rt5650_init(struct snd_soc_pcm_runtime * runtime)103 static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
104 {
105 struct snd_soc_card *card = runtime->card;
106 struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component;
107 const char *codec_capture_dai = asoc_rtd_to_codec(runtime, 1)->name;
108 int ret;
109
110 rt5645_sel_asrc_clk_src(component,
111 RT5645_DA_STEREO_FILTER,
112 RT5645_CLK_SEL_I2S1_ASRC);
113
114 if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
115 rt5645_sel_asrc_clk_src(component,
116 RT5645_AD_STEREO_FILTER,
117 RT5645_CLK_SEL_I2S1_ASRC);
118 } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
119 rt5645_sel_asrc_clk_src(component,
120 RT5645_AD_STEREO_FILTER,
121 RT5645_CLK_SEL_I2S2_ASRC);
122 } else {
123 dev_warn(card->dev,
124 "Only one dai codec found in DTS, enabled rt5645 AD filter\n");
125 rt5645_sel_asrc_clk_src(component,
126 RT5645_AD_STEREO_FILTER,
127 RT5645_CLK_SEL_I2S1_ASRC);
128 }
129
130 /* enable jack detection */
131 ret = snd_soc_card_jack_new(card, "Headset Jack",
132 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
133 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
134 SND_JACK_BTN_2 | SND_JACK_BTN_3,
135 &mt8173_rt5650_jack, NULL, 0);
136 if (ret) {
137 dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
138 return ret;
139 }
140
141 return rt5645_set_jack_detect(component,
142 &mt8173_rt5650_jack,
143 &mt8173_rt5650_jack,
144 &mt8173_rt5650_jack);
145 }
146
mt8173_rt5650_hdmi_init(struct snd_soc_pcm_runtime * rtd)147 static int mt8173_rt5650_hdmi_init(struct snd_soc_pcm_runtime *rtd)
148 {
149 int ret;
150
151 ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT,
152 &mt8173_rt5650_hdmi_jack, NULL, 0);
153 if (ret)
154 return ret;
155
156 return snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component,
157 &mt8173_rt5650_hdmi_jack, NULL);
158 }
159
160 enum {
161 DAI_LINK_PLAYBACK,
162 DAI_LINK_CAPTURE,
163 DAI_LINK_HDMI,
164 DAI_LINK_CODEC_I2S,
165 DAI_LINK_HDMI_I2S,
166 };
167
168 SND_SOC_DAILINK_DEFS(playback,
169 DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
170 DAILINK_COMP_ARRAY(COMP_DUMMY()),
171 DAILINK_COMP_ARRAY(COMP_EMPTY()));
172
173 SND_SOC_DAILINK_DEFS(capture,
174 DAILINK_COMP_ARRAY(COMP_CPU("VUL")),
175 DAILINK_COMP_ARRAY(COMP_DUMMY()),
176 DAILINK_COMP_ARRAY(COMP_EMPTY()));
177
178 SND_SOC_DAILINK_DEFS(hdmi_pcm,
179 DAILINK_COMP_ARRAY(COMP_CPU("HDMI")),
180 DAILINK_COMP_ARRAY(COMP_DUMMY()),
181 DAILINK_COMP_ARRAY(COMP_EMPTY()));
182
183 SND_SOC_DAILINK_DEFS(codec,
184 DAILINK_COMP_ARRAY(COMP_CPU("I2S")),
185 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1"), /* Playback */
186 COMP_CODEC(NULL, "rt5645-aif1")),/* Capture */
187 DAILINK_COMP_ARRAY(COMP_EMPTY()));
188
189 SND_SOC_DAILINK_DEFS(hdmi_be,
190 DAILINK_COMP_ARRAY(COMP_CPU("HDMIO")),
191 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")),
192 DAILINK_COMP_ARRAY(COMP_EMPTY()));
193
194 /* Digital audio interface glue - connects codec <---> CPU */
195 static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
196 /* Front End DAI links */
197 [DAI_LINK_PLAYBACK] = {
198 .name = "rt5650 Playback",
199 .stream_name = "rt5650 Playback",
200 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
201 .dynamic = 1,
202 .dpcm_playback = 1,
203 SND_SOC_DAILINK_REG(playback),
204 },
205 [DAI_LINK_CAPTURE] = {
206 .name = "rt5650 Capture",
207 .stream_name = "rt5650 Capture",
208 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
209 .dynamic = 1,
210 .dpcm_capture = 1,
211 SND_SOC_DAILINK_REG(capture),
212 },
213 [DAI_LINK_HDMI] = {
214 .name = "HDMI",
215 .stream_name = "HDMI PCM",
216 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
217 .dynamic = 1,
218 .dpcm_playback = 1,
219 SND_SOC_DAILINK_REG(hdmi_pcm),
220 },
221 /* Back End DAI links */
222 [DAI_LINK_CODEC_I2S] = {
223 .name = "Codec",
224 .no_pcm = 1,
225 .init = mt8173_rt5650_init,
226 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
227 SND_SOC_DAIFMT_CBS_CFS,
228 .ops = &mt8173_rt5650_ops,
229 .ignore_pmdown_time = 1,
230 .dpcm_playback = 1,
231 .dpcm_capture = 1,
232 SND_SOC_DAILINK_REG(codec),
233 },
234 [DAI_LINK_HDMI_I2S] = {
235 .name = "HDMI BE",
236 .no_pcm = 1,
237 .dpcm_playback = 1,
238 .init = mt8173_rt5650_hdmi_init,
239 SND_SOC_DAILINK_REG(hdmi_be),
240 },
241 };
242
243 static struct snd_soc_card mt8173_rt5650_card = {
244 .name = "mtk-rt5650",
245 .owner = THIS_MODULE,
246 .dai_link = mt8173_rt5650_dais,
247 .num_links = ARRAY_SIZE(mt8173_rt5650_dais),
248 .controls = mt8173_rt5650_controls,
249 .num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
250 .dapm_widgets = mt8173_rt5650_widgets,
251 .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
252 .dapm_routes = mt8173_rt5650_routes,
253 .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
254 };
255
mt8173_rt5650_dev_probe(struct platform_device * pdev)256 static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
257 {
258 struct snd_soc_card *card = &mt8173_rt5650_card;
259 struct device_node *platform_node;
260 struct device_node *np;
261 const char *codec_capture_dai;
262 struct snd_soc_dai_link *dai_link;
263 int i, ret;
264
265 platform_node = of_parse_phandle(pdev->dev.of_node,
266 "mediatek,platform", 0);
267 if (!platform_node) {
268 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
269 return -EINVAL;
270 }
271
272 for_each_card_prelinks(card, i, dai_link) {
273 if (dai_link->platforms->name)
274 continue;
275 dai_link->platforms->of_node = platform_node;
276 }
277
278 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node =
279 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
280 if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {
281 dev_err(&pdev->dev,
282 "Property 'audio-codec' missing or invalid\n");
283 return -EINVAL;
284 }
285 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =
286 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node;
287
288 np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
289 if (np) {
290 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
291 of_node_put(np);
292 if (ret < 0) {
293 dev_err(&pdev->dev,
294 "%s codec_capture_dai name fail %d\n",
295 __func__, ret);
296 return ret;
297 }
298 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name =
299 codec_capture_dai;
300 }
301
302 if (device_property_present(&pdev->dev, "mediatek,mclk")) {
303 ret = device_property_read_u32(&pdev->dev,
304 "mediatek,mclk",
305 &mt8173_rt5650_priv.pll_from);
306 if (ret) {
307 dev_err(&pdev->dev,
308 "%s snd_soc_register_card fail %d\n",
309 __func__, ret);
310 }
311 }
312
313 mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node =
314 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
315 if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {
316 dev_err(&pdev->dev,
317 "Property 'audio-codec' missing or invalid\n");
318 return -EINVAL;
319 }
320 card->dev = &pdev->dev;
321
322 ret = devm_snd_soc_register_card(&pdev->dev, card);
323 if (ret)
324 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
325 __func__, ret);
326 return ret;
327 }
328
329 static const struct of_device_id mt8173_rt5650_dt_match[] = {
330 { .compatible = "mediatek,mt8173-rt5650", },
331 { }
332 };
333 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
334
335 static struct platform_driver mt8173_rt5650_driver = {
336 .driver = {
337 .name = "mtk-rt5650",
338 .of_match_table = mt8173_rt5650_dt_match,
339 #ifdef CONFIG_PM
340 .pm = &snd_soc_pm_ops,
341 #endif
342 },
343 .probe = mt8173_rt5650_dev_probe,
344 };
345
346 module_platform_driver(mt8173_rt5650_driver);
347
348 /* Module information */
349 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
350 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
351 MODULE_LICENSE("GPL v2");
352 MODULE_ALIAS("platform:mtk-rt5650");
353
354