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2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da 
 kernel/sound/soc/generic/audio-graph-card.c
....@@ -20,26 +20,16 @@
2020 #include <linux/string.h>
2121 #include <sound/simple_card_utils.h>
2222 
23
-struct graph_card_data {
24
-	struct snd_soc_card snd_card;
25
-	struct graph_dai_props {
26
-		struct asoc_simple_dai cpu_dai;
27
-		struct asoc_simple_dai codec_dai;
28
-		unsigned int mclk_fs;
29
-	} *dai_props;
30
-	unsigned int mclk_fs;
31
-	struct asoc_simple_jack hp_jack;
32
-	struct asoc_simple_jack mic_jack;
33
-	struct snd_soc_dai_link *dai_link;
34
-	struct gpio_desc *pa_gpio;
35
-};
23
+#define DPCM_SELECTABLE 1
3624 
37
-static int asoc_graph_card_outdrv_event(struct snd_soc_dapm_widget *w,
38
-					struct snd_kcontrol *kcontrol,
39
-					int event)
25
+#define PREFIX	"audio-graph-card,"
26
+
27
+static int graph_outdrv_event(struct snd_soc_dapm_widget *w,
28
+			      struct snd_kcontrol *kcontrol,
29
+			      int event)
4030 {
4131 	struct snd_soc_dapm_context *dapm = w->dapm;
42
-	struct graph_card_data *priv = snd_soc_card_get_drvdata(dapm->card);
32
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(dapm->card);
4333 
4434 	switch (event) {
4535 	case SND_SOC_DAPM_POST_PMU:
....@@ -55,265 +45,616 @@
5545 	return 0;
5646 }
5747 
58
-static const struct snd_soc_dapm_widget asoc_graph_card_dapm_widgets[] = {
48
+static const struct snd_soc_dapm_widget graph_dapm_widgets[] = {
5949 	SND_SOC_DAPM_OUT_DRV_E("Amplifier", SND_SOC_NOPM,
60
-			       0, 0, NULL, 0, asoc_graph_card_outdrv_event,
50
+			       0, 0, NULL, 0, graph_outdrv_event,
6151 			       SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
6252 };
6353 
64
-#define graph_priv_to_card(priv) (&(priv)->snd_card)
65
-#define graph_priv_to_props(priv, i) ((priv)->dai_props + (i))
66
-#define graph_priv_to_dev(priv) (graph_priv_to_card(priv)->dev)
67
-#define graph_priv_to_link(priv, i) (graph_priv_to_card(priv)->dai_link + (i))
68
-
69
-static int asoc_graph_card_startup(struct snd_pcm_substream *substream)
70
-{
71
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
72
-	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
73
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
74
-	int ret;
75
-
76
-	ret = asoc_simple_card_clk_enable(&dai_props->cpu_dai);
77
-	if (ret)
78
-		return ret;
79
-
80
-	ret = asoc_simple_card_clk_enable(&dai_props->codec_dai);
81
-	if (ret)
82
-		asoc_simple_card_clk_disable(&dai_props->cpu_dai);
83
-
84
-	return ret;
85
-}
86
-
87
-static void asoc_graph_card_shutdown(struct snd_pcm_substream *substream)
88
-{
89
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
90
-	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
91
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
92
-
93
-	asoc_simple_card_clk_disable(&dai_props->cpu_dai);
94
-
95
-	asoc_simple_card_clk_disable(&dai_props->codec_dai);
96
-}
97
-
98
-static int asoc_graph_card_hw_params(struct snd_pcm_substream *substream,
99
-				     struct snd_pcm_hw_params *params)
100
-{
101
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
102
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
103
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
104
-	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
105
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
106
-	unsigned int mclk, mclk_fs = 0;
107
-	int ret = 0;
108
-
109
-	if (priv->mclk_fs)
110
-		mclk_fs = priv->mclk_fs;
111
-	else if (dai_props->mclk_fs)
112
-		mclk_fs = dai_props->mclk_fs;
113
-
114
-	if (mclk_fs) {
115
-		mclk = params_rate(params) * mclk_fs;
116
-		ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
117
-					     SND_SOC_CLOCK_IN);
118
-		if (ret && ret != -ENOTSUPP)
119
-			goto err;
120
-
121
-		ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
122
-					     SND_SOC_CLOCK_OUT);
123
-		if (ret && ret != -ENOTSUPP)
124
-			goto err;
125
-	}
126
-	return 0;
127
-err:
128
-	return ret;
129
-}
130
-
131
-static const struct snd_soc_ops asoc_graph_card_ops = {
132
-	.startup = asoc_graph_card_startup,
133
-	.shutdown = asoc_graph_card_shutdown,
134
-	.hw_params = asoc_graph_card_hw_params,
54
+static const struct snd_soc_ops graph_ops = {
55
+	.startup	= asoc_simple_startup,
56
+	.shutdown	= asoc_simple_shutdown,
57
+	.hw_params	= asoc_simple_hw_params,
13558 };
13659 
137
-static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd)
60
+static int graph_get_dai_id(struct device_node *ep)
13861 {
139
-	struct graph_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
140
-	struct snd_soc_dai *codec = rtd->codec_dai;
141
-	struct snd_soc_dai *cpu = rtd->cpu_dai;
142
-	struct graph_dai_props *dai_props =
143
-		graph_priv_to_props(priv, rtd->num);
62
+	struct device_node *node;
63
+	struct device_node *endpoint;
64
+	struct of_endpoint info;
65
+	int i, id;
66
+	const u32 *reg;
14467 	int ret;
14568 
146
-	ret = asoc_simple_card_init_dai(codec, &dai_props->codec_dai);
147
-	if (ret < 0)
69
+	/* use driver specified DAI ID if exist */
70
+	ret = snd_soc_get_dai_id(ep);
71
+	if (ret != -ENOTSUPP)
14872 		return ret;
14973 
150
-	ret = asoc_simple_card_init_dai(cpu, &dai_props->cpu_dai);
151
-	if (ret < 0)
74
+	/* use endpoint/port reg if exist */
75
+	ret = of_graph_parse_endpoint(ep, &info);
76
+	if (ret == 0) {
77
+		/*
78
+		 * Because it will count port/endpoint if it doesn't have "reg".
79
+		 * But, we can't judge whether it has "no reg", or "reg = <0>"
80
+		 * only of_graph_parse_endpoint().
81
+		 * We need to check "reg" property
82
+		 */
83
+		if (of_get_property(ep,   "reg", NULL))
84
+			return info.id;
85
+
86
+		node = of_get_parent(ep);
87
+		reg = of_get_property(node, "reg", NULL);
88
+		of_node_put(node);
89
+		if (reg)
90
+			return info.port;
91
+	}
92
+	node = of_graph_get_port_parent(ep);
93
+
94
+	/*
95
+	 * Non HDMI sound case, counting port/endpoint on its DT
96
+	 * is enough. Let's count it.
97
+	 */
98
+	i = 0;
99
+	id = -1;
100
+	for_each_endpoint_of_node(node, endpoint) {
101
+		if (endpoint == ep)
102
+			id = i;
103
+		i++;
104
+	}
105
+
106
+	of_node_put(node);
107
+
108
+	if (id < 0)
109
+		return -ENODEV;
110
+
111
+	return id;
112
+}
113
+
114
+static int asoc_simple_parse_dai(struct device_node *ep,
115
+				 struct snd_soc_dai_link_component *dlc,
116
+				 int *is_single_link)
117
+{
118
+	struct device_node *node;
119
+	struct of_phandle_args args;
120
+	int ret;
121
+
122
+	if (!ep)
123
+		return 0;
124
+
125
+	node = of_graph_get_port_parent(ep);
126
+
127
+	/* Get dai->name */
128
+	args.np		= node;
129
+	args.args[0]	= graph_get_dai_id(ep);
130
+	args.args_count	= (of_graph_get_endpoint_count(node) > 1);
131
+
132
+	/*
133
+	 * FIXME
134
+	 *
135
+	 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
136
+	 * If user unbinded CPU or Codec driver, but not for Sound Card,
137
+	 * dlc->dai_name is keeping unbinded CPU or Codec
138
+	 * driver's pointer.
139
+	 *
140
+	 * If user re-bind CPU or Codec driver again, ALSA SoC will try
141
+	 * to rebind Card via snd_soc_try_rebind_card(), but because of
142
+	 * above reason, it might can't bind Sound Card.
143
+	 * Because Sound Card is pointing to released dai_name pointer.
144
+	 *
145
+	 * To avoid this rebind Card issue,
146
+	 * 1) It needs to alloc memory to keep dai_name eventhough
147
+	 *    CPU or Codec driver was unbinded, or
148
+	 * 2) user need to rebind Sound Card everytime
149
+	 *    if he unbinded CPU or Codec.
150
+	 */
151
+	ret = snd_soc_get_dai_name(&args, &dlc->dai_name);
152
+	if (ret < 0) {
153
+		of_node_put(node);
152154 		return ret;
155
+	}
156
+
157
+	dlc->of_node = node;
158
+
159
+	if (is_single_link)
160
+		*is_single_link = of_graph_get_endpoint_count(node) == 1;
153161 
154162 	return 0;
155163 }
156164 
157
-static int asoc_graph_card_dai_link_of(struct device_node *cpu_port,
158
-					struct graph_card_data *priv,
159
-					int idx)
165
+static void graph_parse_convert(struct device *dev,
166
+				struct device_node *ep,
167
+				struct asoc_simple_data *adata)
160168 {
161
-	struct device *dev = graph_priv_to_dev(priv);
162
-	struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, idx);
163
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, idx);
164
-	struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai;
165
-	struct asoc_simple_dai *codec_dai = &dai_props->codec_dai;
166
-	struct device_node *cpu_ep    = of_get_next_child(cpu_port, NULL);
167
-	struct device_node *codec_ep = of_graph_get_remote_endpoint(cpu_ep);
168
-	struct device_node *rcpu_ep = of_graph_get_remote_endpoint(codec_ep);
169
+	struct device_node *top = dev->of_node;
170
+	struct device_node *port = of_get_parent(ep);
171
+	struct device_node *ports = of_get_parent(port);
172
+	struct device_node *node = of_graph_get_port_parent(ep);
173
+
174
+	asoc_simple_parse_convert(dev, top,   NULL,   adata);
175
+	asoc_simple_parse_convert(dev, node,  PREFIX, adata);
176
+	asoc_simple_parse_convert(dev, ports, NULL,   adata);
177
+	asoc_simple_parse_convert(dev, port,  NULL,   adata);
178
+	asoc_simple_parse_convert(dev, ep,    NULL,   adata);
179
+
180
+	of_node_put(port);
181
+	of_node_put(ports);
182
+	of_node_put(node);
183
+}
184
+
185
+static void graph_parse_mclk_fs(struct device_node *top,
186
+				struct device_node *ep,
187
+				struct simple_dai_props *props)
188
+{
189
+	struct device_node *port	= of_get_parent(ep);
190
+	struct device_node *ports	= of_get_parent(port);
191
+	struct device_node *node	= of_graph_get_port_parent(ep);
192
+
193
+	of_property_read_u32(top,	"mclk-fs", &props->mclk_fs);
194
+	of_property_read_u32(ports,	"mclk-fs", &props->mclk_fs);
195
+	of_property_read_u32(port,	"mclk-fs", &props->mclk_fs);
196
+	of_property_read_u32(ep,	"mclk-fs", &props->mclk_fs);
197
+
198
+	of_node_put(port);
199
+	of_node_put(ports);
200
+	of_node_put(node);
201
+}
202
+
203
+static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
204
+				  struct device_node *cpu_ep,
205
+				  struct device_node *codec_ep,
206
+				  struct link_info *li,
207
+				  int dup_codec)
208
+{
209
+	struct device *dev = simple_priv_to_dev(priv);
210
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
211
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
212
+	struct device_node *top = dev->of_node;
213
+	struct device_node *ep = li->cpu ? cpu_ep : codec_ep;
214
+	struct device_node *port;
215
+	struct device_node *ports;
216
+	struct device_node *node;
217
+	struct asoc_simple_dai *dai;
218
+	struct snd_soc_dai_link_component *cpus = dai_link->cpus;
219
+	struct snd_soc_dai_link_component *codecs = dai_link->codecs;
169220 	int ret;
170221 
171
-	if (rcpu_ep != cpu_ep) {
172
-		dev_err(dev, "remote-endpoint mismatch (%s/%s/%s)\n",
173
-			cpu_ep->name, codec_ep->name, rcpu_ep->name);
174
-		ret = -EINVAL;
175
-		goto dai_link_of_err;
222
+	/* Do it all CPU endpoint, and 1st Codec endpoint */
223
+	if (!li->cpu && dup_codec)
224
+		return 0;
225
+
226
+	port	= of_get_parent(ep);
227
+	ports	= of_get_parent(port);
228
+	node	= of_graph_get_port_parent(ep);
229
+
230
+	li->link++;
231
+
232
+	dev_dbg(dev, "link_of DPCM (%pOF)\n", ep);
233
+
234
+	if (li->cpu) {
235
+		int is_single_links = 0;
236
+
237
+		/* Codec is dummy */
238
+		codecs->of_node		= NULL;
239
+		codecs->dai_name	= "snd-soc-dummy-dai";
240
+		codecs->name		= "snd-soc-dummy";
241
+
242
+		/* FE settings */
243
+		dai_link->dynamic		= 1;
244
+		dai_link->dpcm_merged_format	= 1;
245
+
246
+		dai =
247
+		dai_props->cpu_dai	= &priv->dais[li->dais++];
248
+
249
+		ret = asoc_simple_parse_cpu(ep, dai_link, &is_single_links);
250
+		if (ret)
251
+			goto out_put_node;
252
+
253
+		ret = asoc_simple_parse_clk_cpu(dev, ep, dai_link, dai);
254
+		if (ret < 0)
255
+			goto out_put_node;
256
+
257
+		ret = asoc_simple_set_dailink_name(dev, dai_link,
258
+						   "fe.%s",
259
+						   cpus->dai_name);
260
+		if (ret < 0)
261
+			goto out_put_node;
262
+
263
+		/* card->num_links includes Codec */
264
+		asoc_simple_canonicalize_cpu(dai_link, is_single_links);
265
+	} else {
266
+		struct snd_soc_codec_conf *cconf;
267
+
268
+		/* CPU is dummy */
269
+		cpus->of_node		= NULL;
270
+		cpus->dai_name		= "snd-soc-dummy-dai";
271
+		cpus->name		= "snd-soc-dummy";
272
+
273
+		/* BE settings */
274
+		dai_link->no_pcm		= 1;
275
+		dai_link->be_hw_params_fixup	= asoc_simple_be_hw_params_fixup;
276
+
277
+		dai =
278
+		dai_props->codec_dai	= &priv->dais[li->dais++];
279
+
280
+		cconf =
281
+		dai_props->codec_conf	= &priv->codec_conf[li->conf++];
282
+
283
+		ret = asoc_simple_parse_codec(ep, dai_link);
284
+		if (ret < 0)
285
+			goto out_put_node;
286
+
287
+		ret = asoc_simple_parse_clk_codec(dev, ep, dai_link, dai);
288
+		if (ret < 0)
289
+			goto out_put_node;
290
+
291
+		ret = asoc_simple_set_dailink_name(dev, dai_link,
292
+						   "be.%s",
293
+						   codecs->dai_name);
294
+		if (ret < 0)
295
+			goto out_put_node;
296
+
297
+		/* check "prefix" from top node */
298
+		snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
299
+					      "prefix");
300
+		snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
301
+					     PREFIX "prefix");
302
+		snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node,
303
+					     "prefix");
304
+		snd_soc_of_parse_node_prefix(port, cconf, codecs->of_node,
305
+					     "prefix");
176306 	}
177307 
178
-	ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
179
-					    NULL, &dai_link->dai_fmt);
308
+	graph_parse_convert(dev, ep, &dai_props->adata);
309
+	graph_parse_mclk_fs(top, ep, dai_props);
310
+
311
+	asoc_simple_canonicalize_platform(dai_link);
312
+
313
+	ret = asoc_simple_parse_tdm(ep, dai);
314
+	if (ret)
315
+		goto out_put_node;
316
+
317
+	ret = asoc_simple_parse_daifmt(dev, cpu_ep, codec_ep,
318
+				       NULL, &dai_link->dai_fmt);
180319 	if (ret < 0)
181
-		goto dai_link_of_err;
320
+		goto out_put_node;
182321 
183
-	of_property_read_u32(rcpu_ep, "mclk-fs", &dai_props->mclk_fs);
322
+	snd_soc_dai_link_set_capabilities(dai_link);
184323 
185
-	ret = asoc_simple_card_parse_graph_cpu(cpu_ep, dai_link);
186
-	if (ret < 0)
187
-		goto dai_link_of_err;
324
+	dai_link->ops			= &graph_ops;
325
+	dai_link->init			= asoc_simple_dai_init;
188326 
189
-	ret = asoc_simple_card_parse_graph_codec(codec_ep, dai_link);
190
-	if (ret < 0)
191
-		goto dai_link_of_err;
192
-
193
-	ret = asoc_simple_card_of_parse_tdm(cpu_ep, cpu_dai);
194
-	if (ret < 0)
195
-		goto dai_link_of_err;
196
-
197
-	ret = asoc_simple_card_of_parse_tdm(codec_ep, codec_dai);
198
-	if (ret < 0)
199
-		goto dai_link_of_err;
200
-
201
-	ret = asoc_simple_card_parse_clk_cpu(dev, cpu_ep, dai_link, cpu_dai);
202
-	if (ret < 0)
203
-		goto dai_link_of_err;
204
-
205
-	ret = asoc_simple_card_parse_clk_codec(dev, codec_ep, dai_link, codec_dai);
206
-	if (ret < 0)
207
-		goto dai_link_of_err;
208
-
209
-	ret = asoc_simple_card_canonicalize_dailink(dai_link);
210
-	if (ret < 0)
211
-		goto dai_link_of_err;
212
-
213
-	ret = asoc_simple_card_set_dailink_name(dev, dai_link,
214
-						"%s-%s",
215
-						dai_link->cpu_dai_name,
216
-						dai_link->codec_dai_name);
217
-	if (ret < 0)
218
-		goto dai_link_of_err;
219
-
220
-	dai_link->ops = &asoc_graph_card_ops;
221
-	dai_link->init = asoc_graph_card_dai_init;
222
-
223
-	asoc_simple_card_canonicalize_cpu(dai_link,
224
-		of_graph_get_endpoint_count(dai_link->cpu_of_node) == 1);
225
-
226
-dai_link_of_err:
227
-	of_node_put(cpu_ep);
228
-	of_node_put(rcpu_ep);
229
-	of_node_put(codec_ep);
230
-
327
+out_put_node:
328
+	of_node_put(ports);
329
+	of_node_put(port);
330
+	of_node_put(node);
231331 	return ret;
232332 }
233333 
234
-static int asoc_graph_card_parse_of(struct graph_card_data *priv)
334
+static int graph_dai_link_of(struct asoc_simple_priv *priv,
335
+			     struct device_node *cpu_ep,
336
+			     struct device_node *codec_ep,
337
+			     struct link_info *li)
235338 {
236
-	struct of_phandle_iterator it;
237
-	struct device *dev = graph_priv_to_dev(priv);
238
-	struct snd_soc_card *card = graph_priv_to_card(priv);
239
-	struct device_node *node = dev->of_node;
240
-	int rc, idx = 0;
241
-	int ret;
339
+	struct device *dev = simple_priv_to_dev(priv);
340
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
341
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
342
+	struct device_node *top = dev->of_node;
343
+	struct asoc_simple_dai *cpu_dai;
344
+	struct asoc_simple_dai *codec_dai;
345
+	int ret, single_cpu = 0;
242346 
243
-	ret = asoc_simple_card_of_parse_widgets(card, NULL);
244
-	if (ret < 0)
245
-		return ret;
347
+	/* Do it only CPU turn */
348
+	if (!li->cpu)
349
+		return 0;
246350 
247
-	ret = asoc_simple_card_of_parse_routing(card, NULL, 1);
248
-	if (ret < 0)
249
-		return ret;
351
+	dev_dbg(dev, "link_of (%pOF)\n", cpu_ep);
352
+
353
+	li->link++;
354
+
355
+	cpu_dai			=
356
+	dai_props->cpu_dai	= &priv->dais[li->dais++];
357
+	codec_dai		=
358
+	dai_props->codec_dai	= &priv->dais[li->dais++];
250359 
251360 	/* Factor to mclk, used in hw_params() */
252
-	of_property_read_u32(node, "mclk-fs", &priv->mclk_fs);
361
+	graph_parse_mclk_fs(top, cpu_ep,   dai_props);
362
+	graph_parse_mclk_fs(top, codec_ep, dai_props);
253363 
364
+	ret = asoc_simple_parse_daifmt(dev, cpu_ep, codec_ep,
365
+				       NULL, &dai_link->dai_fmt);
366
+	if (ret < 0)
367
+		return ret;
368
+
369
+	ret = asoc_simple_parse_cpu(cpu_ep, dai_link, &single_cpu);
370
+	if (ret < 0)
371
+		return ret;
372
+
373
+	ret = asoc_simple_parse_codec(codec_ep, dai_link);
374
+	if (ret < 0)
375
+		return ret;
376
+
377
+	ret = asoc_simple_parse_tdm(cpu_ep, cpu_dai);
378
+	if (ret < 0)
379
+		return ret;
380
+
381
+	ret = asoc_simple_parse_tdm(codec_ep, codec_dai);
382
+	if (ret < 0)
383
+		return ret;
384
+
385
+	ret = asoc_simple_parse_clk_cpu(dev, cpu_ep, dai_link, cpu_dai);
386
+	if (ret < 0)
387
+		return ret;
388
+
389
+	ret = asoc_simple_parse_clk_codec(dev, codec_ep, dai_link, codec_dai);
390
+	if (ret < 0)
391
+		return ret;
392
+
393
+	ret = asoc_simple_set_dailink_name(dev, dai_link,
394
+					   "%s-%s",
395
+					   dai_link->cpus->dai_name,
396
+					   dai_link->codecs->dai_name);
397
+	if (ret < 0)
398
+		return ret;
399
+
400
+	dai_link->ops = &graph_ops;
401
+	dai_link->init = asoc_simple_dai_init;
402
+
403
+	asoc_simple_canonicalize_cpu(dai_link, single_cpu);
404
+	asoc_simple_canonicalize_platform(dai_link);
405
+
406
+	return 0;
407
+}
408
+
409
+static int graph_for_each_link(struct asoc_simple_priv *priv,
410
+			struct link_info *li,
411
+			int (*func_noml)(struct asoc_simple_priv *priv,
412
+					 struct device_node *cpu_ep,
413
+					 struct device_node *codec_ep,
414
+					 struct link_info *li),
415
+			int (*func_dpcm)(struct asoc_simple_priv *priv,
416
+					 struct device_node *cpu_ep,
417
+					 struct device_node *codec_ep,
418
+					 struct link_info *li, int dup_codec))
419
+{
420
+	struct of_phandle_iterator it;
421
+	struct device *dev = simple_priv_to_dev(priv);
422
+	struct device_node *node = dev->of_node;
423
+	struct device_node *cpu_port;
424
+	struct device_node *cpu_ep;
425
+	struct device_node *codec_ep;
426
+	struct device_node *codec_port;
427
+	struct device_node *codec_port_old = NULL;
428
+	struct asoc_simple_data adata;
429
+	uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
430
+	int rc, ret;
431
+
432
+	/* loop for all listed CPU port */
254433 	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
255
-		ret = asoc_graph_card_dai_link_of(it.node, priv, idx++);
256
-		if (ret < 0) {
257
-			of_node_put(it.node);
434
+		cpu_port = it.node;
435
+		cpu_ep	 = NULL;
258436 
259
-			return ret;
437
+		/* loop for all CPU endpoint */
438
+		while (1) {
439
+			cpu_ep = of_get_next_child(cpu_port, cpu_ep);
440
+			if (!cpu_ep)
441
+				break;
442
+
443
+			/* get codec */
444
+			codec_ep = of_graph_get_remote_endpoint(cpu_ep);
445
+			codec_port = of_get_parent(codec_ep);
446
+
447
+			/* get convert-xxx property */
448
+			memset(&adata, 0, sizeof(adata));
449
+			graph_parse_convert(dev, codec_ep, &adata);
450
+			graph_parse_convert(dev, cpu_ep,   &adata);
451
+
452
+			/*
453
+			 * It is DPCM
454
+			 * if Codec port has many endpoints,
455
+			 * or has convert-xxx property
456
+			 */
457
+			if (dpcm_selectable &&
458
+			    ((of_get_child_count(codec_port) > 1) ||
459
+			     adata.convert_rate || adata.convert_channels))
460
+				ret = func_dpcm(priv, cpu_ep, codec_ep, li,
461
+						(codec_port_old == codec_port));
462
+			/* else normal sound */
463
+			else
464
+				ret = func_noml(priv, cpu_ep, codec_ep, li);
465
+
466
+			of_node_put(codec_ep);
467
+			of_node_put(codec_port);
468
+
469
+			if (ret < 0) {
470
+				of_node_put(cpu_ep);
471
+				return ret;
472
+			}
473
+
474
+			codec_port_old = codec_port;
260475 		}
261476 	}
262477 
263
-	return asoc_simple_card_parse_card_name(card, NULL);
478
+	return 0;
264479 }
265480 
266
-static int asoc_graph_get_dais_count(struct device *dev)
481
+static int graph_parse_of(struct asoc_simple_priv *priv)
267482 {
268
-	struct of_phandle_iterator it;
269
-	struct device_node *node = dev->of_node;
270
-	int count = 0;
271
-	int rc;
272
-
273
-	of_for_each_phandle(&it, rc, node, "dais", NULL, 0)
274
-		count++;
275
-
276
-	return count;
277
-}
278
-
279
-static int asoc_graph_soc_card_probe(struct snd_soc_card *card)
280
-{
281
-	struct graph_card_data *priv = snd_soc_card_get_drvdata(card);
483
+	struct snd_soc_card *card = simple_priv_to_card(priv);
484
+	struct link_info li;
282485 	int ret;
283486 
284
-	ret = asoc_simple_card_init_hp(card, &priv->hp_jack, NULL);
487
+	ret = asoc_simple_parse_widgets(card, NULL);
285488 	if (ret < 0)
286489 		return ret;
287490 
288
-	ret = asoc_simple_card_init_mic(card, &priv->mic_jack, NULL);
491
+	ret = asoc_simple_parse_routing(card, NULL);
492
+	if (ret < 0)
493
+		return ret;
494
+
495
+	memset(&li, 0, sizeof(li));
496
+	for (li.cpu = 1; li.cpu >= 0; li.cpu--) {
497
+		/*
498
+		 * Detect all CPU first, and Detect all Codec 2nd.
499
+		 *
500
+		 * In Normal sound case, all DAIs are detected
501
+		 * as "CPU-Codec".
502
+		 *
503
+		 * In DPCM sound case,
504
+		 * all CPUs   are detected as "CPU-dummy", and
505
+		 * all Codecs are detected as "dummy-Codec".
506
+		 * To avoid random sub-device numbering,
507
+		 * detect "dummy-Codec" in last;
508
+		 */
509
+		ret = graph_for_each_link(priv, &li,
510
+					  graph_dai_link_of,
511
+					  graph_dai_link_of_dpcm);
512
+		if (ret < 0)
513
+			return ret;
514
+	}
515
+
516
+	return asoc_simple_parse_card_name(card, NULL);
517
+}
518
+
519
+static int graph_count_noml(struct asoc_simple_priv *priv,
520
+			    struct device_node *cpu_ep,
521
+			    struct device_node *codec_ep,
522
+			    struct link_info *li)
523
+{
524
+	struct device *dev = simple_priv_to_dev(priv);
525
+
526
+	li->link += 1; /* 1xCPU-Codec */
527
+	li->dais += 2; /* 1xCPU + 1xCodec */
528
+
529
+	dev_dbg(dev, "Count As Normal\n");
530
+
531
+	return 0;
532
+}
533
+
534
+static int graph_count_dpcm(struct asoc_simple_priv *priv,
535
+			    struct device_node *cpu_ep,
536
+			    struct device_node *codec_ep,
537
+			    struct link_info *li,
538
+			    int dup_codec)
539
+{
540
+	struct device *dev = simple_priv_to_dev(priv);
541
+
542
+	li->link++; /* 1xCPU-dummy */
543
+	li->dais++; /* 1xCPU */
544
+
545
+	if (!dup_codec) {
546
+		li->link++; /* 1xdummy-Codec */
547
+		li->conf++; /* 1xdummy-Codec */
548
+		li->dais++; /* 1xCodec */
549
+	}
550
+
551
+	dev_dbg(dev, "Count As DPCM\n");
552
+
553
+	return 0;
554
+}
555
+
556
+static void graph_get_dais_count(struct asoc_simple_priv *priv,
557
+				 struct link_info *li)
558
+{
559
+	struct device *dev = simple_priv_to_dev(priv);
560
+
561
+	/*
562
+	 * link_num :	number of links.
563
+	 *		CPU-Codec / CPU-dummy / dummy-Codec
564
+	 * dais_num :	number of DAIs
565
+	 * ccnf_num :	number of codec_conf
566
+	 *		same number for "dummy-Codec"
567
+	 *
568
+	 * ex1)
569
+	 * CPU0 --- Codec0	link : 5
570
+	 * CPU1 --- Codec1	dais : 7
571
+	 * CPU2 -/		ccnf : 1
572
+	 * CPU3 --- Codec2
573
+	 *
574
+	 *	=> 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
575
+	 *	=> 7 DAIs  = 4xCPU + 3xCodec
576
+	 *	=> 1 ccnf  = 1xdummy-Codec
577
+	 *
578
+	 * ex2)
579
+	 * CPU0 --- Codec0	link : 5
580
+	 * CPU1 --- Codec1	dais : 6
581
+	 * CPU2 -/		ccnf : 1
582
+	 * CPU3 -/
583
+	 *
584
+	 *	=> 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
585
+	 *	=> 6 DAIs  = 4xCPU + 2xCodec
586
+	 *	=> 1 ccnf  = 1xdummy-Codec
587
+	 *
588
+	 * ex3)
589
+	 * CPU0 --- Codec0	link : 6
590
+	 * CPU1 -/		dais : 6
591
+	 * CPU2 --- Codec1	ccnf : 2
592
+	 * CPU3 -/
593
+	 *
594
+	 *	=> 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
595
+	 *	=> 6 DAIs  = 4xCPU + 2xCodec
596
+	 *	=> 2 ccnf  = 2xdummy-Codec
597
+	 *
598
+	 * ex4)
599
+	 * CPU0 --- Codec0 (convert-rate)	link : 3
600
+	 * CPU1 --- Codec1			dais : 4
601
+	 *					ccnf : 1
602
+	 *
603
+	 *	=> 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec
604
+	 *	=> 4 DAIs  = 2xCPU + 2xCodec
605
+	 *	=> 1 ccnf  = 1xdummy-Codec
606
+	 */
607
+	graph_for_each_link(priv, li,
608
+			    graph_count_noml,
609
+			    graph_count_dpcm);
610
+	dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
611
+		li->link, li->dais, li->conf);
612
+}
613
+
614
+static int graph_card_probe(struct snd_soc_card *card)
615
+{
616
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
617
+	int ret;
618
+
619
+	ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL);
620
+	if (ret < 0)
621
+		return ret;
622
+
623
+	ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL);
289624 	if (ret < 0)
290625 		return ret;
291626 
292627 	return 0;
293628 }
294629 
295
-static int asoc_graph_card_probe(struct platform_device *pdev)
630
+static int graph_probe(struct platform_device *pdev)
296631 {
297
-	struct graph_card_data *priv;
298
-	struct snd_soc_dai_link *dai_link;
299
-	struct graph_dai_props *dai_props;
632
+	struct asoc_simple_priv *priv;
300633 	struct device *dev = &pdev->dev;
301634 	struct snd_soc_card *card;
302
-	int num, ret;
635
+	struct link_info li;
636
+	int ret;
303637 
304638 	/* Allocate the private data and the DAI link array */
305639 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
306640 	if (!priv)
307641 		return -ENOMEM;
308642 
309
-	num = asoc_graph_get_dais_count(dev);
310
-	if (num == 0)
643
+	card = simple_priv_to_card(priv);
644
+	card->owner		= THIS_MODULE;
645
+	card->dev		= dev;
646
+	card->dapm_widgets	= graph_dapm_widgets;
647
+	card->num_dapm_widgets	= ARRAY_SIZE(graph_dapm_widgets);
648
+	card->probe		= graph_card_probe;
649
+
650
+	memset(&li, 0, sizeof(li));
651
+	graph_get_dais_count(priv, &li);
652
+	if (!li.link || !li.dais)
311653 		return -EINVAL;
312654 
313
-	dai_props = devm_kcalloc(dev, num, sizeof(*dai_props), GFP_KERNEL);
314
-	dai_link  = devm_kcalloc(dev, num, sizeof(*dai_link), GFP_KERNEL);
315
-	if (!dai_props || !dai_link)
316
-		return -ENOMEM;
655
+	ret = asoc_simple_init_priv(priv, &li);
656
+	if (ret < 0)
657
+		return ret;
317658 
318659 	priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW);
319660 	if (IS_ERR(priv->pa_gpio)) {
....@@ -322,20 +663,7 @@
322663 		return ret;
323664 	}
324665 
325
-	priv->dai_props			= dai_props;
326
-	priv->dai_link			= dai_link;
327
-
328
-	/* Init snd_soc_card */
329
-	card = graph_priv_to_card(priv);
330
-	card->owner	= THIS_MODULE;
331
-	card->dev	= dev;
332
-	card->dai_link	= dai_link;
333
-	card->num_links	= num;
334
-	card->dapm_widgets = asoc_graph_card_dapm_widgets;
335
-	card->num_dapm_widgets = ARRAY_SIZE(asoc_graph_card_dapm_widgets);
336
-	card->probe	= asoc_graph_soc_card_probe;
337
-
338
-	ret = asoc_graph_card_parse_of(priv);
666
+	ret = graph_parse_of(priv);
339667 	if (ret < 0) {
340668 		if (ret != -EPROBE_DEFER)
341669 			dev_err(dev, "parse error %d\n", ret);
....@@ -344,40 +672,44 @@
344672 
345673 	snd_soc_card_set_drvdata(card, priv);
346674 
675
+	asoc_simple_debug_info(priv);
676
+
347677 	ret = devm_snd_soc_register_card(dev, card);
348678 	if (ret < 0)
349679 		goto err;
350680 
351681 	return 0;
352682 err:
353
-	asoc_simple_card_clean_reference(card);
683
+	asoc_simple_clean_reference(card);
354684 
355685 	return ret;
356686 }
357687 
358
-static int asoc_graph_card_remove(struct platform_device *pdev)
688
+static int graph_remove(struct platform_device *pdev)
359689 {
360690 	struct snd_soc_card *card = platform_get_drvdata(pdev);
361691 
362
-	return asoc_simple_card_clean_reference(card);
692
+	return asoc_simple_clean_reference(card);
363693 }
364694 
365
-static const struct of_device_id asoc_graph_of_match[] = {
695
+static const struct of_device_id graph_of_match[] = {
366696 	{ .compatible = "audio-graph-card", },
697
+	{ .compatible = "audio-graph-scu-card",
698
+	  .data = (void *)DPCM_SELECTABLE },
367699 	{},
368700 };
369
-MODULE_DEVICE_TABLE(of, asoc_graph_of_match);
701
+MODULE_DEVICE_TABLE(of, graph_of_match);
370702 
371
-static struct platform_driver asoc_graph_card = {
703
+static struct platform_driver graph_card = {
372704 	.driver = {
373705 		.name = "asoc-audio-graph-card",
374706 		.pm = &snd_soc_pm_ops,
375
-		.of_match_table = asoc_graph_of_match,
707
+		.of_match_table = graph_of_match,
376708 	},
377
-	.probe = asoc_graph_card_probe,
378
-	.remove = asoc_graph_card_remove,
709
+	.probe = graph_probe,
710
+	.remove = graph_remove,
379711 };
380
-module_platform_driver(asoc_graph_card);
712
+module_platform_driver(graph_card);
381713 
382714 MODULE_ALIAS("platform:asoc-audio-graph-card");
383715 MODULE_LICENSE("GPL v2");