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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c 
 kernel/sound/soc/intel/boards/bdw-rt5677.c
....@@ -1,19 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * ASoC machine driver for Intel Broadwell platforms with RT5677 codec
34  *
45  * Copyright (c) 2014, The Chromium OS Authors.  All rights reserved.
5
- *
6
- * This program is free software; you can redistribute it and/or modify it
7
- * under the terms and conditions of the GNU General Public License,
8
- * version 2, as published by the Free Software Foundation.
9
- *
10
- * This program is distributed in the hope it will be useful, but WITHOUT
11
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13
- * more details.
14
- *
15
- * You should have received a copy of the GNU General Public License
16
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
176  */
187 
198 #include <linux/acpi.h>
....@@ -26,9 +15,7 @@
2615 #include <sound/soc.h>
2716 #include <sound/pcm_params.h>
2817 #include <sound/jack.h>
29
-
30
-#include "../common/sst-dsp.h"
31
-#include "../haswell/sst-haswell-ipc.h"
18
+#include <sound/soc-acpi.h>
3219 
3320 #include "../../codecs/rt5677.h"
3421 
....@@ -84,6 +71,11 @@
8471 	/* CODEC BE connections */
8572 	{"SSP0 CODEC IN", NULL, "AIF1 Capture"},
8673 	{"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
74
+	{"DSP Capture", NULL, "DSP Buffer"},
75
+
76
+	/* DSP Clock Connections */
77
+	{ "DSP Buffer", NULL, "SSP0 CODEC IN" },
78
+	{ "SSP0 CODEC IN", NULL, "DSPTX" },
8779 };
8880 
8981 static const struct snd_kcontrol_new bdw_rt5677_controls[] = {
....@@ -145,13 +137,13 @@
145137 			struct snd_pcm_hw_params *params)
146138 {
147139 	struct snd_interval *rate = hw_param_interval(params,
148
-			SNDRV_PCM_HW_PARAM_RATE);
149
-	struct snd_interval *channels = hw_param_interval(params,
150
-						SNDRV_PCM_HW_PARAM_CHANNELS);
140
+						      SNDRV_PCM_HW_PARAM_RATE);
141
+	struct snd_interval *chan = hw_param_interval(params,
142
+						      SNDRV_PCM_HW_PARAM_CHANNELS);
151143 
152144 	/* The ADSP will covert the FE rate to 48k, stereo */
153145 	rate->min = rate->max = 48000;
154
-	channels->min = channels->max = 2;
146
+	chan->min = chan->max = 2;
155147 
156148 	/* set SSP0 to 16 bit */
157149 	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
....@@ -161,8 +153,8 @@
161153 static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream,
162154 	struct snd_pcm_hw_params *params)
163155 {
164
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
165
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
156
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
157
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
166158 	int ret;
167159 
168160 	ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000,
....@@ -175,34 +167,67 @@
175167 	return ret;
176168 }
177169 
178
-static const struct snd_soc_ops bdw_rt5677_ops = {
179
-	.hw_params = bdw_rt5677_hw_params,
180
-};
181
-
182
-static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd)
170
+static int bdw_rt5677_dsp_hw_params(struct snd_pcm_substream *substream,
171
+	struct snd_pcm_hw_params *params)
183172 {
184
-	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
185
-	struct sst_pdata *pdata = dev_get_platdata(component->dev);
186
-	struct sst_hsw *broadwell = pdata->dsp;
173
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
174
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
187175 	int ret;
188176 
189
-	/* Set ADSP SSP port settings */
190
-	ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
191
-		SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
192
-		SST_HSW_DEVICE_CLOCK_MASTER, 9);
177
+	ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_PLL1, 24576000,
178
+		SND_SOC_CLOCK_IN);
193179 	if (ret < 0) {
194
-		dev_err(rtd->dev, "error: failed to set device config\n");
180
+		dev_err(rtd->dev, "can't set codec sysclk configuration\n");
181
+		return ret;
182
+	}
183
+	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5677_PLL1_S_MCLK,
184
+		24000000, 24576000);
185
+	if (ret < 0) {
186
+		dev_err(rtd->dev, "can't set codec pll configuration\n");
195187 		return ret;
196188 	}
197189 
198190 	return 0;
199191 }
200192 
193
+static const struct snd_soc_ops bdw_rt5677_ops = {
194
+	.hw_params = bdw_rt5677_hw_params,
195
+};
196
+
197
+static const struct snd_soc_ops bdw_rt5677_dsp_ops = {
198
+	.hw_params = bdw_rt5677_dsp_hw_params,
199
+};
200
+
201
+static const unsigned int channels[] = {
202
+	2,
203
+};
204
+
205
+static const struct snd_pcm_hw_constraint_list constraints_channels = {
206
+	.count = ARRAY_SIZE(channels),
207
+	.list = channels,
208
+	.mask = 0,
209
+};
210
+
211
+static int bdw_rt5677_fe_startup(struct snd_pcm_substream *substream)
212
+{
213
+	struct snd_pcm_runtime *runtime = substream->runtime;
214
+
215
+	/* Board supports stereo configuration only */
216
+	runtime->hw.channels_max = 2;
217
+	return snd_pcm_hw_constraint_list(runtime, 0,
218
+					  SNDRV_PCM_HW_PARAM_CHANNELS,
219
+					  &constraints_channels);
220
+}
221
+
222
+static const struct snd_soc_ops bdw_rt5677_fe_ops = {
223
+	.startup = bdw_rt5677_fe_startup,
224
+};
225
+
201226 static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd)
202227 {
203228 	struct bdw_rt5677_priv *bdw_rt5677 =
204229 			snd_soc_card_get_drvdata(rtd->card);
205
-	struct snd_soc_component *component = rtd->codec_dai->component;
230
+	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
206231 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
207232 	int ret;
208233 
....@@ -216,10 +241,15 @@
216241 	rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER |
217242 			RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE,
218243 			RT5677_CLK_SEL_I2S1_ASRC);
244
+	/* Enable codec ASRC function for Mono ADC L.
245
+	 * The ASRC clock source is clk_sys2_asrc.
246
+	 */
247
+	rt5677_sel_asrc_clk_src(component, RT5677_AD_MONO_L_FILTER,
248
+			RT5677_CLK_SEL_SYS2);
219249 
220250 	/* Request rt5677 GPIO for headphone amp control */
221
-	bdw_rt5677->gpio_hp_en = devm_gpiod_get(component->dev, "headphone-enable",
222
-						GPIOD_OUT_LOW);
251
+	bdw_rt5677->gpio_hp_en = gpiod_get(component->dev, "headphone-enable",
252
+					   GPIOD_OUT_LOW);
223253 	if (IS_ERR(bdw_rt5677->gpio_hp_en)) {
224254 		dev_err(component->dev, "Can't find HP_AMP_SHDN_L gpio\n");
225255 		return PTR_ERR(bdw_rt5677->gpio_hp_en);
....@@ -253,24 +283,65 @@
253283 	return 0;
254284 }
255285 
286
+static void bdw_rt5677_exit(struct snd_soc_pcm_runtime *rtd)
287
+{
288
+	struct bdw_rt5677_priv *bdw_rt5677 =
289
+			snd_soc_card_get_drvdata(rtd->card);
290
+
291
+	/*
292
+	 * The .exit() can be reached without going through the .init()
293
+	 * so explicitly test if the gpiod is valid
294
+	 */
295
+	if (!IS_ERR_OR_NULL(bdw_rt5677->gpio_hp_en))
296
+		gpiod_put(bdw_rt5677->gpio_hp_en);
297
+}
298
+
256299 /* broadwell digital audio interface glue - connects codec <--> CPU */
300
+SND_SOC_DAILINK_DEF(dummy,
301
+	DAILINK_COMP_ARRAY(COMP_DUMMY()));
302
+
303
+SND_SOC_DAILINK_DEF(fe,
304
+	DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
305
+
306
+SND_SOC_DAILINK_DEF(platform,
307
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
308
+
309
+SND_SOC_DAILINK_DEF(be,
310
+	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-RT5677CE:00", "rt5677-aif1")));
311
+
312
+SND_SOC_DAILINK_DEF(ssp0_port,
313
+	    DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
314
+
315
+/* Wake on voice interface */
316
+SND_SOC_DAILINK_DEFS(dsp,
317
+	DAILINK_COMP_ARRAY(COMP_CPU("spi-RT5677AA:00")),
318
+	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-RT5677CE:00", "rt5677-dspbuffer")),
319
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("spi-RT5677AA:00")));
320
+
257321 static struct snd_soc_dai_link bdw_rt5677_dais[] = {
258322 	/* Front End DAI links */
259323 	{
260324 		.name = "System PCM",
261325 		.stream_name = "System Playback/Capture",
262
-		.cpu_dai_name = "System Pin",
263
-		.platform_name = "haswell-pcm-audio",
326
+		.nonatomic = 1,
264327 		.dynamic = 1,
265
-		.codec_name = "snd-soc-dummy",
266
-		.codec_dai_name = "snd-soc-dummy-dai",
267
-		.init = bdw_rt5677_rtd_init,
268328 		.trigger = {
269329 			SND_SOC_DPCM_TRIGGER_POST,
270330 			SND_SOC_DPCM_TRIGGER_POST
271331 		},
272332 		.dpcm_capture = 1,
273333 		.dpcm_playback = 1,
334
+		.ops = &bdw_rt5677_fe_ops,
335
+		SND_SOC_DAILINK_REG(fe, dummy, platform),
336
+	},
337
+
338
+	/* Non-DPCM links */
339
+	{
340
+		.name = "Codec DSP",
341
+		.stream_name = "Wake on Voice",
342
+		.capture_only = 1,
343
+		.ops = &bdw_rt5677_dsp_ops,
344
+		SND_SOC_DAILINK_REG(dsp),
274345 	},
275346 
276347 	/* Back End DAI links */
....@@ -278,20 +349,17 @@
278349 		/* SSP0 - Codec */
279350 		.name = "Codec",
280351 		.id = 0,
281
-		.cpu_dai_name = "snd-soc-dummy-dai",
282
-		.platform_name = "snd-soc-dummy",
283352 		.no_pcm = 1,
284
-		.codec_name = "i2c-RT5677CE:00",
285
-		.codec_dai_name = "rt5677-aif1",
286353 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
287354 			SND_SOC_DAIFMT_CBS_CFS,
288
-		.ignore_suspend = 1,
289355 		.ignore_pmdown_time = 1,
290356 		.be_hw_params_fixup = broadwell_ssp0_fixup,
291357 		.ops = &bdw_rt5677_ops,
292358 		.dpcm_playback = 1,
293359 		.dpcm_capture = 1,
294360 		.init = bdw_rt5677_init,
361
+		.exit = bdw_rt5677_exit,
362
+		SND_SOC_DAILINK_REG(ssp0_port, be, platform),
295363 	},
296364 };
297365 
....@@ -319,9 +387,19 @@
319387 	return 0;
320388 }
321389 
390
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
391
+/* use space before codec name to simplify card ID, and simplify driver name */
392
+#define CARD_NAME "bdw rt5677" /* card name will be 'sof-bdw rt5677' */
393
+#define DRIVER_NAME "SOF"
394
+#else
395
+#define CARD_NAME "bdw-rt5677"
396
+#define DRIVER_NAME NULL /* card name will be used for driver name */
397
+#endif
398
+
322399 /* ASoC machine driver for Broadwell DSP + RT5677 */
323400 static struct snd_soc_card bdw_rt5677_card = {
324
-	.name = "bdw-rt5677",
401
+	.name = CARD_NAME,
402
+	.driver_name = DRIVER_NAME,
325403 	.owner = THIS_MODULE,
326404 	.dai_link = bdw_rt5677_dais,
327405 	.num_links = ARRAY_SIZE(bdw_rt5677_dais),
....@@ -339,6 +417,8 @@
339417 static int bdw_rt5677_probe(struct platform_device *pdev)
340418 {
341419 	struct bdw_rt5677_priv *bdw_rt5677;
420
+	struct snd_soc_acpi_mach *mach;
421
+	int ret;
342422 
343423 	bdw_rt5677_card.dev = &pdev->dev;
344424 
....@@ -350,6 +430,13 @@
350430 		return -ENOMEM;
351431 	}
352432 
433
+	/* override plaform name, if required */
434
+	mach = pdev->dev.platform_data;
435
+	ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5677_card,
436
+						    mach->mach_params.platform);
437
+	if (ret)
438
+		return ret;
439
+
353440 	snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677);
354441 
355442 	return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card);