mt8173-rt5650.c

  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 <sound/soc.h>
 11#include <sound/jack.h>
 12#include "../../codecs/rt5645.h"
 13
 14#define MCLK_FOR_CODECS		12288000
 15
 16enum mt8173_rt5650_mclk {
 17	MT8173_RT5650_MCLK_EXTERNAL = 0,
 18	MT8173_RT5650_MCLK_INTERNAL,
 19};
 20
 21struct mt8173_rt5650_platform_data {
 22	enum mt8173_rt5650_mclk pll_from;
 23	/* 0 = external oscillator; 1 = internal source from mt8173 */
 24};
 25
 26static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
 27	.pll_from = MT8173_RT5650_MCLK_EXTERNAL,
 28};
 29
 30static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
 31	SND_SOC_DAPM_SPK("Ext Spk", NULL),
 32	SND_SOC_DAPM_MIC("Int Mic", NULL),
 33	SND_SOC_DAPM_HP("Headphone", NULL),
 34	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 35};
 36
 37static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
 38	{"Ext Spk", NULL, "SPOL"},
 39	{"Ext Spk", NULL, "SPOR"},
 40	{"DMIC L1", NULL, "Int Mic"},
 41	{"DMIC R1", NULL, "Int Mic"},
 42	{"Headphone", NULL, "HPOL"},
 43	{"Headphone", NULL, "HPOR"},
 44	{"IN1P", NULL, "Headset Mic"},
 45	{"IN1N", NULL, "Headset Mic"},
 46};
 47
 48static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
 49	SOC_DAPM_PIN_SWITCH("Ext Spk"),
 50	SOC_DAPM_PIN_SWITCH("Int Mic"),
 51	SOC_DAPM_PIN_SWITCH("Headphone"),
 52	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 53};
 54
 55static struct snd_soc_jack_pin mt8173_rt5650_jack_pins[] = {
 56	{
 57		.pin	= "Headphone",
 58		.mask	= SND_JACK_HEADPHONE,
 59	},
 60	{
 61		.pin	= "Headset Mic",
 62		.mask	= SND_JACK_MICROPHONE,
 63	},
 64};
 65
 66static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
 67				   struct snd_pcm_hw_params *params)
 68{
 69	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 70	unsigned int mclk_clock;
 71	struct snd_soc_dai *codec_dai;
 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_each_rtd_codec_dais(rtd, i, codec_dai) {
 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
106static const struct snd_soc_ops mt8173_rt5650_ops = {
107	.hw_params = mt8173_rt5650_hw_params,
108};
109
110static struct snd_soc_jack mt8173_rt5650_jack, mt8173_rt5650_hdmi_jack;
111
112static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
113{
114	struct snd_soc_card *card = runtime->card;
115	struct snd_soc_component *component = snd_soc_rtd_to_codec(runtime, 0)->component;
116	const char *codec_capture_dai = snd_soc_rtd_to_codec(runtime, 1)->name;
117	int ret;
118
119	rt5645_sel_asrc_clk_src(component,
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(component,
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(component,
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(component,
135					RT5645_AD_STEREO_FILTER,
136					RT5645_CLK_SEL_I2S1_ASRC);
137	}
138
139	/* enable jack detection */
140	ret = snd_soc_card_jack_new_pins(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,
145					 mt8173_rt5650_jack_pins,
146					 ARRAY_SIZE(mt8173_rt5650_jack_pins));
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(component,
153				      &mt8173_rt5650_jack,
154				      &mt8173_rt5650_jack,
155				      &mt8173_rt5650_jack);
156}
157
158static int mt8173_rt5650_hdmi_init(struct snd_soc_pcm_runtime *rtd)
159{
160	int ret;
161
162	ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_AVOUT,
163				    &mt8173_rt5650_hdmi_jack);
164	if (ret)
165		return ret;
166
167	return snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component,
168					  &mt8173_rt5650_hdmi_jack, NULL);
169}
170
171enum {
172	DAI_LINK_PLAYBACK,
173	DAI_LINK_CAPTURE,
174	DAI_LINK_HDMI,
175	DAI_LINK_CODEC_I2S,
176	DAI_LINK_HDMI_I2S,
177};
178
179SND_SOC_DAILINK_DEFS(playback,
180	DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
181	DAILINK_COMP_ARRAY(COMP_DUMMY()),
182	DAILINK_COMP_ARRAY(COMP_EMPTY()));
183
184SND_SOC_DAILINK_DEFS(capture,
185	DAILINK_COMP_ARRAY(COMP_CPU("VUL")),
186	DAILINK_COMP_ARRAY(COMP_DUMMY()),
187	DAILINK_COMP_ARRAY(COMP_EMPTY()));
188
189SND_SOC_DAILINK_DEFS(hdmi_pcm,
190	DAILINK_COMP_ARRAY(COMP_CPU("HDMI")),
191	DAILINK_COMP_ARRAY(COMP_DUMMY()),
192	DAILINK_COMP_ARRAY(COMP_EMPTY()));
193
194SND_SOC_DAILINK_DEFS(codec,
195	DAILINK_COMP_ARRAY(COMP_CPU("I2S")),
196	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1"), /* Playback */
197			   COMP_CODEC(NULL, "rt5645-aif1")),/* Capture */
198	DAILINK_COMP_ARRAY(COMP_EMPTY()));
199
200SND_SOC_DAILINK_DEFS(hdmi_be,
201	DAILINK_COMP_ARRAY(COMP_CPU("HDMIO")),
202	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")),
203	DAILINK_COMP_ARRAY(COMP_EMPTY()));
204
205/* Digital audio interface glue - connects codec <---> CPU */
206static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
207	/* Front End DAI links */
208	[DAI_LINK_PLAYBACK] = {
209		.name = "rt5650 Playback",
210		.stream_name = "rt5650 Playback",
211		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
212		.dynamic = 1,
213		.playback_only = 1,
214		SND_SOC_DAILINK_REG(playback),
215	},
216	[DAI_LINK_CAPTURE] = {
217		.name = "rt5650 Capture",
218		.stream_name = "rt5650 Capture",
219		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
220		.dynamic = 1,
221		.capture_only = 1,
222		SND_SOC_DAILINK_REG(capture),
223	},
224	[DAI_LINK_HDMI] = {
225		.name = "HDMI",
226		.stream_name = "HDMI PCM",
227		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
228		.dynamic = 1,
229		.playback_only = 1,
230		SND_SOC_DAILINK_REG(hdmi_pcm),
231	},
232	/* Back End DAI links */
233	[DAI_LINK_CODEC_I2S] = {
234		.name = "Codec",
235		.no_pcm = 1,
236		.init = mt8173_rt5650_init,
237		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
238			   SND_SOC_DAIFMT_CBC_CFC,
239		.ops = &mt8173_rt5650_ops,
240		.ignore_pmdown_time = 1,
241		SND_SOC_DAILINK_REG(codec),
242	},
243	[DAI_LINK_HDMI_I2S] = {
244		.name = "HDMI BE",
245		.no_pcm = 1,
246		.playback_only = 1,
247		.init = mt8173_rt5650_hdmi_init,
248		SND_SOC_DAILINK_REG(hdmi_be),
249	},
250};
251
252static struct snd_soc_card mt8173_rt5650_card = {
253	.name = "mtk-rt5650",
254	.owner = THIS_MODULE,
255	.dai_link = mt8173_rt5650_dais,
256	.num_links = ARRAY_SIZE(mt8173_rt5650_dais),
257	.controls = mt8173_rt5650_controls,
258	.num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
259	.dapm_widgets = mt8173_rt5650_widgets,
260	.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
261	.dapm_routes = mt8173_rt5650_routes,
262	.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
263};
264
265static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
266{
267	struct snd_soc_card *card = &mt8173_rt5650_card;
268	struct device_node *platform_node;
269	struct device_node *np;
270	const char *codec_capture_dai;
271	struct snd_soc_dai_link *dai_link;
272	int i, ret;
273
274	platform_node = of_parse_phandle(pdev->dev.of_node,
275					 "mediatek,platform", 0);
276	if (!platform_node) {
277		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
278		return -EINVAL;
279	}
280
281	for_each_card_prelinks(card, i, dai_link) {
282		if (dai_link->platforms->name)
283			continue;
284		dai_link->platforms->of_node = platform_node;
285	}
286
287	mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node =
288		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
289	if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {
290		dev_err(&pdev->dev,
291			"Property 'audio-codec' missing or invalid\n");
292		ret = -EINVAL;
293		goto put_platform_node;
294	}
295	mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =
296		mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node;
297
298	np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
299	if (np) {
300		ret = snd_soc_of_get_dai_name(np, &codec_capture_dai, 0);
301		of_node_put(np);
302		if (ret < 0) {
303			dev_err(&pdev->dev,
304				"%s codec_capture_dai name fail %d\n",
305				__func__, ret);
306			goto put_platform_node;
307		}
308		mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name =
309			codec_capture_dai;
310	}
311
312	if (device_property_present(&pdev->dev, "mediatek,mclk")) {
313		ret = device_property_read_u32(&pdev->dev,
314					       "mediatek,mclk",
315					       &mt8173_rt5650_priv.pll_from);
316		if (ret) {
317			dev_err(&pdev->dev,
318				"%s snd_soc_register_card fail %d\n",
319				__func__, ret);
320		}
321	}
322
323	mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node =
324		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
325	if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {
326		dev_err(&pdev->dev,
327			"Property 'audio-codec' missing or invalid\n");
328		ret = -EINVAL;
329		goto put_platform_node;
330	}
331	card->dev = &pdev->dev;
332
333	ret = devm_snd_soc_register_card(&pdev->dev, card);
334
335put_platform_node:
336	of_node_put(platform_node);
337	return ret;
338}
339
340static const struct of_device_id mt8173_rt5650_dt_match[] = {
341	{ .compatible = "mediatek,mt8173-rt5650", },
342	{ }
343};
344MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
345
346static struct platform_driver mt8173_rt5650_driver = {
347	.driver = {
348		   .name = "mtk-rt5650",
349		   .of_match_table = mt8173_rt5650_dt_match,
350		   .pm = &snd_soc_pm_ops,
351	},
352	.probe = mt8173_rt5650_dev_probe,
353};
354
355module_platform_driver(mt8173_rt5650_driver);
356
357/* Module information */
358MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
359MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
360MODULE_LICENSE("GPL v2");
361MODULE_ALIAS("platform:mtk-rt5650");
362