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0f83f929 KC |
1 | /* |
2 | * mt8173-rt5650.c -- MT8173 machine driver with RT5650 codecs | |
3 | * | |
4 | * Copyright (c) 2016 MediaTek Inc. | |
5 | * Author: Koro Chen <koro.chen@mediatek.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 and | |
9 | * only version 2 as published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | */ | |
16 | ||
17 | #include <linux/module.h> | |
18 | #include <linux/gpio.h> | |
19 | #include <linux/of_gpio.h> | |
20 | #include <sound/soc.h> | |
21 | #include <sound/jack.h> | |
22 | #include "../codecs/rt5645.h" | |
23 | ||
24 | #define MCLK_FOR_CODECS 12288000 | |
25 | ||
26 | static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = { | |
27 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
28 | SND_SOC_DAPM_MIC("Int Mic", NULL), | |
29 | SND_SOC_DAPM_HP("Headphone", NULL), | |
30 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
31 | }; | |
32 | ||
33 | static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = { | |
34 | {"Speaker", NULL, "SPOL"}, | |
35 | {"Speaker", NULL, "SPOR"}, | |
36 | {"DMIC L1", NULL, "Int Mic"}, | |
37 | {"DMIC R1", NULL, "Int Mic"}, | |
38 | {"Headphone", NULL, "HPOL"}, | |
39 | {"Headphone", NULL, "HPOR"}, | |
40 | {"Headset Mic", NULL, "micbias1"}, | |
41 | {"Headset Mic", NULL, "micbias2"}, | |
42 | {"IN1P", NULL, "Headset Mic"}, | |
43 | {"IN1N", NULL, "Headset Mic"}, | |
44 | }; | |
45 | ||
46 | static const struct snd_kcontrol_new mt8173_rt5650_controls[] = { | |
47 | SOC_DAPM_PIN_SWITCH("Speaker"), | |
48 | SOC_DAPM_PIN_SWITCH("Int Mic"), | |
49 | SOC_DAPM_PIN_SWITCH("Headphone"), | |
50 | SOC_DAPM_PIN_SWITCH("Headset Mic"), | |
51 | }; | |
52 | ||
53 | static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream, | |
54 | struct snd_pcm_hw_params *params) | |
55 | { | |
56 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
57 | int i, ret; | |
58 | ||
59 | for (i = 0; i < rtd->num_codecs; i++) { | |
60 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
61 | ||
62 | /* pll from mclk 12.288M */ | |
63 | ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS, | |
64 | params_rate(params) * 512); | |
65 | if (ret) | |
66 | return ret; | |
67 | ||
68 | /* sysclk from pll */ | |
69 | ret = snd_soc_dai_set_sysclk(codec_dai, 1, | |
70 | params_rate(params) * 512, | |
71 | SND_SOC_CLOCK_IN); | |
72 | if (ret) | |
73 | return ret; | |
74 | } | |
75 | return 0; | |
76 | } | |
77 | ||
78 | static struct snd_soc_ops mt8173_rt5650_ops = { | |
79 | .hw_params = mt8173_rt5650_hw_params, | |
80 | }; | |
81 | ||
82 | static struct snd_soc_jack mt8173_rt5650_jack; | |
83 | ||
84 | static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime) | |
85 | { | |
86 | struct snd_soc_card *card = runtime->card; | |
87 | struct snd_soc_codec *codec = runtime->codec_dais[0]->codec; | |
d349caeb | 88 | const char *codec_capture_dai = runtime->codec_dais[1]->name; |
0f83f929 KC |
89 | int ret; |
90 | ||
91 | rt5645_sel_asrc_clk_src(codec, | |
d349caeb | 92 | RT5645_DA_STEREO_FILTER, |
0f83f929 | 93 | RT5645_CLK_SEL_I2S1_ASRC); |
d349caeb PL |
94 | |
95 | if (!strcmp(codec_capture_dai, "rt5645-aif1")) { | |
96 | rt5645_sel_asrc_clk_src(codec, | |
97 | RT5645_AD_STEREO_FILTER, | |
98 | RT5645_CLK_SEL_I2S1_ASRC); | |
99 | } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) { | |
100 | rt5645_sel_asrc_clk_src(codec, | |
101 | RT5645_AD_STEREO_FILTER, | |
102 | RT5645_CLK_SEL_I2S2_ASRC); | |
103 | } else { | |
104 | dev_warn(card->dev, | |
105 | "Only one dai codec found in DTS, enabled rt5645 AD filter\n"); | |
106 | rt5645_sel_asrc_clk_src(codec, | |
107 | RT5645_AD_STEREO_FILTER, | |
108 | RT5645_CLK_SEL_I2S1_ASRC); | |
109 | } | |
110 | ||
0f83f929 KC |
111 | /* enable jack detection */ |
112 | ret = snd_soc_card_jack_new(card, "Headset Jack", | |
113 | SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | | |
114 | SND_JACK_BTN_0 | SND_JACK_BTN_1 | | |
115 | SND_JACK_BTN_2 | SND_JACK_BTN_3, | |
116 | &mt8173_rt5650_jack, NULL, 0); | |
117 | if (ret) { | |
118 | dev_err(card->dev, "Can't new Headset Jack %d\n", ret); | |
119 | return ret; | |
120 | } | |
121 | ||
122 | return rt5645_set_jack_detect(codec, | |
123 | &mt8173_rt5650_jack, | |
124 | &mt8173_rt5650_jack, | |
125 | &mt8173_rt5650_jack); | |
126 | } | |
127 | ||
128 | static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = { | |
129 | { | |
d349caeb PL |
130 | /* Playback */ |
131 | .dai_name = "rt5645-aif1", | |
132 | }, | |
133 | { | |
134 | /* Capture */ | |
0f83f929 KC |
135 | .dai_name = "rt5645-aif1", |
136 | }, | |
137 | }; | |
138 | ||
139 | enum { | |
140 | DAI_LINK_PLAYBACK, | |
141 | DAI_LINK_CAPTURE, | |
142 | DAI_LINK_CODEC_I2S, | |
143 | }; | |
144 | ||
145 | /* Digital audio interface glue - connects codec <---> CPU */ | |
146 | static struct snd_soc_dai_link mt8173_rt5650_dais[] = { | |
147 | /* Front End DAI links */ | |
148 | [DAI_LINK_PLAYBACK] = { | |
149 | .name = "rt5650 Playback", | |
150 | .stream_name = "rt5650 Playback", | |
151 | .cpu_dai_name = "DL1", | |
152 | .codec_name = "snd-soc-dummy", | |
153 | .codec_dai_name = "snd-soc-dummy-dai", | |
154 | .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, | |
155 | .dynamic = 1, | |
156 | .dpcm_playback = 1, | |
157 | }, | |
158 | [DAI_LINK_CAPTURE] = { | |
159 | .name = "rt5650 Capture", | |
160 | .stream_name = "rt5650 Capture", | |
161 | .cpu_dai_name = "VUL", | |
162 | .codec_name = "snd-soc-dummy", | |
163 | .codec_dai_name = "snd-soc-dummy-dai", | |
164 | .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, | |
165 | .dynamic = 1, | |
166 | .dpcm_capture = 1, | |
167 | }, | |
168 | /* Back End DAI links */ | |
169 | [DAI_LINK_CODEC_I2S] = { | |
170 | .name = "Codec", | |
171 | .cpu_dai_name = "I2S", | |
172 | .no_pcm = 1, | |
173 | .codecs = mt8173_rt5650_codecs, | |
d349caeb | 174 | .num_codecs = 2, |
0f83f929 KC |
175 | .init = mt8173_rt5650_init, |
176 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | | |
177 | SND_SOC_DAIFMT_CBS_CFS, | |
178 | .ops = &mt8173_rt5650_ops, | |
179 | .ignore_pmdown_time = 1, | |
180 | .dpcm_playback = 1, | |
181 | .dpcm_capture = 1, | |
182 | }, | |
183 | }; | |
184 | ||
185 | static struct snd_soc_card mt8173_rt5650_card = { | |
186 | .name = "mtk-rt5650", | |
187 | .owner = THIS_MODULE, | |
188 | .dai_link = mt8173_rt5650_dais, | |
189 | .num_links = ARRAY_SIZE(mt8173_rt5650_dais), | |
190 | .controls = mt8173_rt5650_controls, | |
191 | .num_controls = ARRAY_SIZE(mt8173_rt5650_controls), | |
192 | .dapm_widgets = mt8173_rt5650_widgets, | |
193 | .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets), | |
194 | .dapm_routes = mt8173_rt5650_routes, | |
195 | .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes), | |
196 | }; | |
197 | ||
198 | static int mt8173_rt5650_dev_probe(struct platform_device *pdev) | |
199 | { | |
200 | struct snd_soc_card *card = &mt8173_rt5650_card; | |
201 | struct device_node *platform_node; | |
d349caeb PL |
202 | struct device_node *np; |
203 | const char *codec_capture_dai; | |
0f83f929 KC |
204 | int i, ret; |
205 | ||
206 | platform_node = of_parse_phandle(pdev->dev.of_node, | |
207 | "mediatek,platform", 0); | |
208 | if (!platform_node) { | |
209 | dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); | |
210 | return -EINVAL; | |
211 | } | |
212 | ||
213 | for (i = 0; i < card->num_links; i++) { | |
214 | if (mt8173_rt5650_dais[i].platform_name) | |
215 | continue; | |
216 | mt8173_rt5650_dais[i].platform_of_node = platform_node; | |
217 | } | |
218 | ||
219 | mt8173_rt5650_codecs[0].of_node = | |
220 | of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0); | |
221 | if (!mt8173_rt5650_codecs[0].of_node) { | |
222 | dev_err(&pdev->dev, | |
223 | "Property 'audio-codec' missing or invalid\n"); | |
224 | return -EINVAL; | |
225 | } | |
d349caeb PL |
226 | mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node; |
227 | ||
228 | if (of_find_node_by_name(platform_node, "codec-capture")) { | |
229 | np = of_get_child_by_name(pdev->dev.of_node, "codec-capture"); | |
230 | if (!np) { | |
231 | dev_err(&pdev->dev, | |
232 | "%s: Can't find codec-capture DT node\n", | |
233 | __func__); | |
234 | return -EINVAL; | |
235 | } | |
236 | ret = snd_soc_of_get_dai_name(np, &codec_capture_dai); | |
237 | if (ret < 0) { | |
238 | dev_err(&pdev->dev, | |
239 | "%s codec_capture_dai name fail %d\n", | |
240 | __func__, ret); | |
241 | return ret; | |
242 | } | |
243 | mt8173_rt5650_codecs[1].dai_name = codec_capture_dai; | |
244 | } | |
245 | ||
0f83f929 KC |
246 | card->dev = &pdev->dev; |
247 | platform_set_drvdata(pdev, card); | |
248 | ||
249 | ret = devm_snd_soc_register_card(&pdev->dev, card); | |
250 | if (ret) | |
251 | dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", | |
252 | __func__, ret); | |
253 | return ret; | |
254 | } | |
255 | ||
256 | static const struct of_device_id mt8173_rt5650_dt_match[] = { | |
257 | { .compatible = "mediatek,mt8173-rt5650", }, | |
258 | { } | |
259 | }; | |
260 | MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match); | |
261 | ||
262 | static struct platform_driver mt8173_rt5650_driver = { | |
263 | .driver = { | |
264 | .name = "mtk-rt5650", | |
265 | .of_match_table = mt8173_rt5650_dt_match, | |
266 | #ifdef CONFIG_PM | |
267 | .pm = &snd_soc_pm_ops, | |
268 | #endif | |
269 | }, | |
270 | .probe = mt8173_rt5650_dev_probe, | |
271 | }; | |
272 | ||
273 | module_platform_driver(mt8173_rt5650_driver); | |
274 | ||
275 | /* Module information */ | |
276 | MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver"); | |
277 | MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>"); | |
278 | MODULE_LICENSE("GPL v2"); | |
279 | MODULE_ALIAS("platform:mtk-rt5650"); | |
280 |