ASoC: soc-pcm: don't call flush_delayed_work() many times in soc_pcm_private_free()
[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         {"Headset Mic", NULL, "micbias1"},
55         {"Headset Mic", NULL, "micbias2"},
56         {"IN1P", NULL, "Headset Mic"},
57         {"IN1N", NULL, "Headset Mic"},
58 };
59
60 static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
61         SOC_DAPM_PIN_SWITCH("Speaker"),
62         SOC_DAPM_PIN_SWITCH("Int Mic"),
63         SOC_DAPM_PIN_SWITCH("Headphone"),
64         SOC_DAPM_PIN_SWITCH("Headset Mic"),
65 };
66
67 static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
68                                    struct snd_pcm_hw_params *params)
69 {
70         struct snd_soc_pcm_runtime *rtd = substream->private_data;
71         unsigned int mclk_clock;
72         int i, ret;
73
74         switch (mt8173_rt5650_priv.pll_from) {
75         case MT8173_RT5650_MCLK_EXTERNAL:
76                 /* mclk = 12.288M */
77                 mclk_clock = MCLK_FOR_CODECS;
78                 break;
79         case MT8173_RT5650_MCLK_INTERNAL:
80                 /* mclk = sampling rate*256 */
81                 mclk_clock = params_rate(params) * 256;
82                 break;
83         default:
84                 /* mclk = 12.288M */
85                 mclk_clock = MCLK_FOR_CODECS;
86                 break;
87         }
88
89         for (i = 0; i < rtd->num_codecs; i++) {
90                 struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
91
92                 /* pll from mclk */
93                 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
94                                           params_rate(params) * 512);
95                 if (ret)
96                         return ret;
97
98                 /* sysclk from pll */
99                 ret = snd_soc_dai_set_sysclk(codec_dai, 1,
100                                              params_rate(params) * 512,
101                                              SND_SOC_CLOCK_IN);
102                 if (ret)
103                         return ret;
104         }
105         return 0;
106 }
107
108 static const struct snd_soc_ops mt8173_rt5650_ops = {
109         .hw_params = mt8173_rt5650_hw_params,
110 };
111
112 static struct snd_soc_jack mt8173_rt5650_jack;
113
114 static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
115 {
116         struct snd_soc_card *card = runtime->card;
117         struct snd_soc_codec *codec = runtime->codec_dais[0]->codec;
118         const char *codec_capture_dai = runtime->codec_dais[1]->name;
119         int ret;
120
121         rt5645_sel_asrc_clk_src(codec,
122                                 RT5645_DA_STEREO_FILTER,
123                                 RT5645_CLK_SEL_I2S1_ASRC);
124
125         if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
126                 rt5645_sel_asrc_clk_src(codec,
127                                         RT5645_AD_STEREO_FILTER,
128                                         RT5645_CLK_SEL_I2S1_ASRC);
129         } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
130                 rt5645_sel_asrc_clk_src(codec,
131                                         RT5645_AD_STEREO_FILTER,
132                                         RT5645_CLK_SEL_I2S2_ASRC);
133         } else {
134                 dev_warn(card->dev,
135                          "Only one dai codec found in DTS, enabled rt5645 AD filter\n");
136                 rt5645_sel_asrc_clk_src(codec,
137                                         RT5645_AD_STEREO_FILTER,
138                                         RT5645_CLK_SEL_I2S1_ASRC);
139         }
140
141         /* enable jack detection */
142         ret = snd_soc_card_jack_new(card, "Headset Jack",
143                                     SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
144                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
145                                     SND_JACK_BTN_2 | SND_JACK_BTN_3,
146                                     &mt8173_rt5650_jack, NULL, 0);
147         if (ret) {
148                 dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
149                 return ret;
150         }
151
152         return rt5645_set_jack_detect(codec,
153                                       &mt8173_rt5650_jack,
154                                       &mt8173_rt5650_jack,
155                                       &mt8173_rt5650_jack);
156 }
157
158 static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
159         {
160                 /* Playback */
161                 .dai_name = "rt5645-aif1",
162         },
163         {
164                 /* Capture */
165                 .dai_name = "rt5645-aif1",
166         },
167 };
168
169 enum {
170         DAI_LINK_PLAYBACK,
171         DAI_LINK_CAPTURE,
172         DAI_LINK_HDMI,
173         DAI_LINK_CODEC_I2S,
174         DAI_LINK_HDMI_I2S,
175 };
176
177 /* Digital audio interface glue - connects codec <---> CPU */
178 static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
179         /* Front End DAI links */
180         [DAI_LINK_PLAYBACK] = {
181                 .name = "rt5650 Playback",
182                 .stream_name = "rt5650 Playback",
183                 .cpu_dai_name = "DL1",
184                 .codec_name = "snd-soc-dummy",
185                 .codec_dai_name = "snd-soc-dummy-dai",
186                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
187                 .dynamic = 1,
188                 .dpcm_playback = 1,
189         },
190         [DAI_LINK_CAPTURE] = {
191                 .name = "rt5650 Capture",
192                 .stream_name = "rt5650 Capture",
193                 .cpu_dai_name = "VUL",
194                 .codec_name = "snd-soc-dummy",
195                 .codec_dai_name = "snd-soc-dummy-dai",
196                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
197                 .dynamic = 1,
198                 .dpcm_capture = 1,
199         },
200         [DAI_LINK_HDMI] = {
201                 .name = "HDMI",
202                 .stream_name = "HDMI PCM",
203                 .cpu_dai_name = "HDMI",
204                 .codec_name = "snd-soc-dummy",
205                 .codec_dai_name = "snd-soc-dummy-dai",
206                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
207                 .dynamic = 1,
208                 .dpcm_playback = 1,
209         },
210         /* Back End DAI links */
211         [DAI_LINK_CODEC_I2S] = {
212                 .name = "Codec",
213                 .cpu_dai_name = "I2S",
214                 .no_pcm = 1,
215                 .codecs = mt8173_rt5650_codecs,
216                 .num_codecs = 2,
217                 .init = mt8173_rt5650_init,
218                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
219                            SND_SOC_DAIFMT_CBS_CFS,
220                 .ops = &mt8173_rt5650_ops,
221                 .ignore_pmdown_time = 1,
222                 .dpcm_playback = 1,
223                 .dpcm_capture = 1,
224         },
225         [DAI_LINK_HDMI_I2S] = {
226                 .name = "HDMI BE",
227                 .cpu_dai_name = "HDMIO",
228                 .no_pcm = 1,
229                 .codec_dai_name = "i2s-hifi",
230                 .dpcm_playback = 1,
231         },
232 };
233
234 static struct snd_soc_card mt8173_rt5650_card = {
235         .name = "mtk-rt5650",
236         .owner = THIS_MODULE,
237         .dai_link = mt8173_rt5650_dais,
238         .num_links = ARRAY_SIZE(mt8173_rt5650_dais),
239         .controls = mt8173_rt5650_controls,
240         .num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
241         .dapm_widgets = mt8173_rt5650_widgets,
242         .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
243         .dapm_routes = mt8173_rt5650_routes,
244         .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
245 };
246
247 static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
248 {
249         struct snd_soc_card *card = &mt8173_rt5650_card;
250         struct device_node *platform_node;
251         struct device_node *np;
252         const char *codec_capture_dai;
253         int i, ret;
254
255         platform_node = of_parse_phandle(pdev->dev.of_node,
256                                          "mediatek,platform", 0);
257         if (!platform_node) {
258                 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
259                 return -EINVAL;
260         }
261
262         for (i = 0; i < card->num_links; i++) {
263                 if (mt8173_rt5650_dais[i].platform_name)
264                         continue;
265                 mt8173_rt5650_dais[i].platform_of_node = platform_node;
266         }
267
268         mt8173_rt5650_codecs[0].of_node =
269                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
270         if (!mt8173_rt5650_codecs[0].of_node) {
271                 dev_err(&pdev->dev,
272                         "Property 'audio-codec' missing or invalid\n");
273                 return -EINVAL;
274         }
275         mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;
276
277         if (of_find_node_by_name(platform_node, "codec-capture")) {
278                 np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
279                 if (!np) {
280                         dev_err(&pdev->dev,
281                                 "%s: Can't find codec-capture DT node\n",
282                                 __func__);
283                         return -EINVAL;
284                 }
285                 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
286                 if (ret < 0) {
287                         dev_err(&pdev->dev,
288                                 "%s codec_capture_dai name fail %d\n",
289                                 __func__, ret);
290                         return ret;
291                 }
292                 mt8173_rt5650_codecs[1].dai_name = codec_capture_dai;
293         }
294
295         if (device_property_present(&pdev->dev, "mediatek,mclk")) {
296                 ret = device_property_read_u32(&pdev->dev,
297                                                "mediatek,mclk",
298                                                &mt8173_rt5650_priv.pll_from);
299                 if (ret) {
300                         dev_err(&pdev->dev,
301                                 "%s snd_soc_register_card fail %d\n",
302                                 __func__, ret);
303                 }
304         }
305
306         mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node =
307                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
308         if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node) {
309                 dev_err(&pdev->dev,
310                         "Property 'audio-codec' missing or invalid\n");
311                 return -EINVAL;
312         }
313         card->dev = &pdev->dev;
314
315         ret = devm_snd_soc_register_card(&pdev->dev, card);
316         if (ret)
317                 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
318                         __func__, ret);
319         return ret;
320 }
321
322 static const struct of_device_id mt8173_rt5650_dt_match[] = {
323         { .compatible = "mediatek,mt8173-rt5650", },
324         { }
325 };
326 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
327
328 static struct platform_driver mt8173_rt5650_driver = {
329         .driver = {
330                    .name = "mtk-rt5650",
331                    .of_match_table = mt8173_rt5650_dt_match,
332 #ifdef CONFIG_PM
333                    .pm = &snd_soc_pm_ops,
334 #endif
335         },
336         .probe = mt8173_rt5650_dev_probe,
337 };
338
339 module_platform_driver(mt8173_rt5650_driver);
340
341 /* Module information */
342 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
343 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
344 MODULE_LICENSE("GPL v2");
345 MODULE_ALIAS("platform:mtk-rt5650");
346