Merge remote-tracking branches 'asoc/fix/compress', 'asoc/fix/core', 'asoc/fix/dapm...
[sfrench/cifs-2.6.git] / sound / soc / mediatek / mt8173 / mt8173-rt5650.c
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 enum mt8173_rt5650_mclk {
27         MT8173_RT5650_MCLK_EXTERNAL = 0,
28         MT8173_RT5650_MCLK_INTERNAL,
29 };
30
31 struct mt8173_rt5650_platform_data {
32         enum mt8173_rt5650_mclk pll_from;
33         /* 0 = external oscillator; 1 = internal source from mt8173 */
34 };
35
36 static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
37         .pll_from = MT8173_RT5650_MCLK_EXTERNAL,
38 };
39
40 static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
41         SND_SOC_DAPM_SPK("Speaker", NULL),
42         SND_SOC_DAPM_MIC("Int Mic", NULL),
43         SND_SOC_DAPM_HP("Headphone", NULL),
44         SND_SOC_DAPM_MIC("Headset Mic", NULL),
45 };
46
47 static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
48         {"Speaker", NULL, "SPOL"},
49         {"Speaker", NULL, "SPOR"},
50         {"DMIC L1", NULL, "Int Mic"},
51         {"DMIC R1", NULL, "Int Mic"},
52         {"Headphone", NULL, "HPOL"},
53         {"Headphone", NULL, "HPOR"},
54         {"IN1P", NULL, "Headset Mic"},
55         {"IN1N", NULL, "Headset Mic"},
56 };
57
58 static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
59         SOC_DAPM_PIN_SWITCH("Speaker"),
60         SOC_DAPM_PIN_SWITCH("Int Mic"),
61         SOC_DAPM_PIN_SWITCH("Headphone"),
62         SOC_DAPM_PIN_SWITCH("Headset Mic"),
63 };
64
65 static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
66                                    struct snd_pcm_hw_params *params)
67 {
68         struct snd_soc_pcm_runtime *rtd = substream->private_data;
69         unsigned int mclk_clock;
70         int i, ret;
71
72         switch (mt8173_rt5650_priv.pll_from) {
73         case MT8173_RT5650_MCLK_EXTERNAL:
74                 /* mclk = 12.288M */
75                 mclk_clock = MCLK_FOR_CODECS;
76                 break;
77         case MT8173_RT5650_MCLK_INTERNAL:
78                 /* mclk = sampling rate*256 */
79                 mclk_clock = params_rate(params) * 256;
80                 break;
81         default:
82                 /* mclk = 12.288M */
83                 mclk_clock = MCLK_FOR_CODECS;
84                 break;
85         }
86
87         for (i = 0; i < rtd->num_codecs; i++) {
88                 struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
89
90                 /* pll from mclk */
91                 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
92                                           params_rate(params) * 512);
93                 if (ret)
94                         return ret;
95
96                 /* sysclk from pll */
97                 ret = snd_soc_dai_set_sysclk(codec_dai, 1,
98                                              params_rate(params) * 512,
99                                              SND_SOC_CLOCK_IN);
100                 if (ret)
101                         return ret;
102         }
103         return 0;
104 }
105
106 static const struct snd_soc_ops mt8173_rt5650_ops = {
107         .hw_params = mt8173_rt5650_hw_params,
108 };
109
110 static struct snd_soc_jack mt8173_rt5650_jack;
111
112 static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
113 {
114         struct snd_soc_card *card = runtime->card;
115         struct snd_soc_codec *codec = runtime->codec_dais[0]->codec;
116         const char *codec_capture_dai = runtime->codec_dais[1]->name;
117         int ret;
118
119         rt5645_sel_asrc_clk_src(codec,
120                                 RT5645_DA_STEREO_FILTER,
121                                 RT5645_CLK_SEL_I2S1_ASRC);
122
123         if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
124                 rt5645_sel_asrc_clk_src(codec,
125                                         RT5645_AD_STEREO_FILTER,
126                                         RT5645_CLK_SEL_I2S1_ASRC);
127         } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
128                 rt5645_sel_asrc_clk_src(codec,
129                                         RT5645_AD_STEREO_FILTER,
130                                         RT5645_CLK_SEL_I2S2_ASRC);
131         } else {
132                 dev_warn(card->dev,
133                          "Only one dai codec found in DTS, enabled rt5645 AD filter\n");
134                 rt5645_sel_asrc_clk_src(codec,
135                                         RT5645_AD_STEREO_FILTER,
136                                         RT5645_CLK_SEL_I2S1_ASRC);
137         }
138
139         /* enable jack detection */
140         ret = snd_soc_card_jack_new(card, "Headset Jack",
141                                     SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
142                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
143                                     SND_JACK_BTN_2 | SND_JACK_BTN_3,
144                                     &mt8173_rt5650_jack, NULL, 0);
145         if (ret) {
146                 dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
147                 return ret;
148         }
149
150         return rt5645_set_jack_detect(codec,
151                                       &mt8173_rt5650_jack,
152                                       &mt8173_rt5650_jack,
153                                       &mt8173_rt5650_jack);
154 }
155
156 static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
157         {
158                 /* Playback */
159                 .dai_name = "rt5645-aif1",
160         },
161         {
162                 /* Capture */
163                 .dai_name = "rt5645-aif1",
164         },
165 };
166
167 enum {
168         DAI_LINK_PLAYBACK,
169         DAI_LINK_CAPTURE,
170         DAI_LINK_HDMI,
171         DAI_LINK_CODEC_I2S,
172         DAI_LINK_HDMI_I2S,
173 };
174
175 /* Digital audio interface glue - connects codec <---> CPU */
176 static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
177         /* Front End DAI links */
178         [DAI_LINK_PLAYBACK] = {
179                 .name = "rt5650 Playback",
180                 .stream_name = "rt5650 Playback",
181                 .cpu_dai_name = "DL1",
182                 .codec_name = "snd-soc-dummy",
183                 .codec_dai_name = "snd-soc-dummy-dai",
184                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
185                 .dynamic = 1,
186                 .dpcm_playback = 1,
187         },
188         [DAI_LINK_CAPTURE] = {
189                 .name = "rt5650 Capture",
190                 .stream_name = "rt5650 Capture",
191                 .cpu_dai_name = "VUL",
192                 .codec_name = "snd-soc-dummy",
193                 .codec_dai_name = "snd-soc-dummy-dai",
194                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
195                 .dynamic = 1,
196                 .dpcm_capture = 1,
197         },
198         [DAI_LINK_HDMI] = {
199                 .name = "HDMI",
200                 .stream_name = "HDMI PCM",
201                 .cpu_dai_name = "HDMI",
202                 .codec_name = "snd-soc-dummy",
203                 .codec_dai_name = "snd-soc-dummy-dai",
204                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
205                 .dynamic = 1,
206                 .dpcm_playback = 1,
207         },
208         /* Back End DAI links */
209         [DAI_LINK_CODEC_I2S] = {
210                 .name = "Codec",
211                 .cpu_dai_name = "I2S",
212                 .no_pcm = 1,
213                 .codecs = mt8173_rt5650_codecs,
214                 .num_codecs = 2,
215                 .init = mt8173_rt5650_init,
216                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
217                            SND_SOC_DAIFMT_CBS_CFS,
218                 .ops = &mt8173_rt5650_ops,
219                 .ignore_pmdown_time = 1,
220                 .dpcm_playback = 1,
221                 .dpcm_capture = 1,
222         },
223         [DAI_LINK_HDMI_I2S] = {
224                 .name = "HDMI BE",
225                 .cpu_dai_name = "HDMIO",
226                 .no_pcm = 1,
227                 .codec_dai_name = "i2s-hifi",
228                 .dpcm_playback = 1,
229         },
230 };
231
232 static struct snd_soc_card mt8173_rt5650_card = {
233         .name = "mtk-rt5650",
234         .owner = THIS_MODULE,
235         .dai_link = mt8173_rt5650_dais,
236         .num_links = ARRAY_SIZE(mt8173_rt5650_dais),
237         .controls = mt8173_rt5650_controls,
238         .num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
239         .dapm_widgets = mt8173_rt5650_widgets,
240         .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
241         .dapm_routes = mt8173_rt5650_routes,
242         .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
243 };
244
245 static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
246 {
247         struct snd_soc_card *card = &mt8173_rt5650_card;
248         struct device_node *platform_node;
249         struct device_node *np;
250         const char *codec_capture_dai;
251         int i, ret;
252
253         platform_node = of_parse_phandle(pdev->dev.of_node,
254                                          "mediatek,platform", 0);
255         if (!platform_node) {
256                 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
257                 return -EINVAL;
258         }
259
260         for (i = 0; i < card->num_links; i++) {
261                 if (mt8173_rt5650_dais[i].platform_name)
262                         continue;
263                 mt8173_rt5650_dais[i].platform_of_node = platform_node;
264         }
265
266         mt8173_rt5650_codecs[0].of_node =
267                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
268         if (!mt8173_rt5650_codecs[0].of_node) {
269                 dev_err(&pdev->dev,
270                         "Property 'audio-codec' missing or invalid\n");
271                 return -EINVAL;
272         }
273         mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;
274
275         np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
276         if (np) {
277                 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
278                 of_node_put(np);
279                 if (ret < 0) {
280                         dev_err(&pdev->dev,
281                                 "%s codec_capture_dai name fail %d\n",
282                                 __func__, ret);
283                         return ret;
284                 }
285                 mt8173_rt5650_codecs[1].dai_name = codec_capture_dai;
286         }
287
288         if (device_property_present(&pdev->dev, "mediatek,mclk")) {
289                 ret = device_property_read_u32(&pdev->dev,
290                                                "mediatek,mclk",
291                                                &mt8173_rt5650_priv.pll_from);
292                 if (ret) {
293                         dev_err(&pdev->dev,
294                                 "%s snd_soc_register_card fail %d\n",
295                                 __func__, ret);
296                 }
297         }
298
299         mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node =
300                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
301         if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node) {
302                 dev_err(&pdev->dev,
303                         "Property 'audio-codec' missing or invalid\n");
304                 return -EINVAL;
305         }
306         card->dev = &pdev->dev;
307
308         ret = devm_snd_soc_register_card(&pdev->dev, card);
309         if (ret)
310                 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
311                         __func__, ret);
312         return ret;
313 }
314
315 static const struct of_device_id mt8173_rt5650_dt_match[] = {
316         { .compatible = "mediatek,mt8173-rt5650", },
317         { }
318 };
319 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
320
321 static struct platform_driver mt8173_rt5650_driver = {
322         .driver = {
323                    .name = "mtk-rt5650",
324                    .of_match_table = mt8173_rt5650_dt_match,
325 #ifdef CONFIG_PM
326                    .pm = &snd_soc_pm_ops,
327 #endif
328         },
329         .probe = mt8173_rt5650_dev_probe,
330 };
331
332 module_platform_driver(mt8173_rt5650_driver);
333
334 /* Module information */
335 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
336 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
337 MODULE_LICENSE("GPL v2");
338 MODULE_ALIAS("platform:mtk-rt5650");
339