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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c 
 kernel/sound/soc/atmel/sam9g20_wm8731.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * sam9g20_wm8731  --  SoC audio for AT91SAM9G20-based
34  * 			ATMEL AT91SAM9G20ek board.
....@@ -13,20 +14,6 @@
1314  * Based on corgi.c by:
1415  * Copyright 2005 Wolfson Microelectronics PLC.
1516  * Copyright 2005 Openedhand Ltd.
16
- *
17
- * This program is free software; you can redistribute it and/or modify
18
- * it under the terms of the GNU General Public License as published by
19
- * the Free Software Foundation; either version 2 of the License, or
20
- * (at your option) any later version.
21
- *
22
- * This program is distributed in the hope that it will be useful,
23
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
24
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25
- * GNU General Public License for more details.
26
- *
27
- * You should have received a copy of the GNU General Public License
28
- * along with this program; if not, write to the Free Software
29
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
3017  */
3118 
3219 #include <linux/module.h>
....@@ -59,35 +46,6 @@
5946  */
6047 #undef ENABLE_MIC_INPUT
6148 
62
-static struct clk *mclk;
63
-
64
-static int at91sam9g20ek_set_bias_level(struct snd_soc_card *card,
65
-					struct snd_soc_dapm_context *dapm,
66
-					enum snd_soc_bias_level level)
67
-{
68
-	static int mclk_on;
69
-	int ret = 0;
70
-
71
-	switch (level) {
72
-	case SND_SOC_BIAS_ON:
73
-	case SND_SOC_BIAS_PREPARE:
74
-		if (!mclk_on)
75
-			ret = clk_enable(mclk);
76
-		if (ret == 0)
77
-			mclk_on = 1;
78
-		break;
79
-
80
-	case SND_SOC_BIAS_OFF:
81
-	case SND_SOC_BIAS_STANDBY:
82
-		if (mclk_on)
83
-			clk_disable(mclk);
84
-		mclk_on = 0;
85
-		break;
86
-	}
87
-
88
-	return ret;
89
-}
90
-
9149 static const struct snd_soc_dapm_widget at91sam9g20ek_dapm_widgets[] = {
9250 	SND_SOC_DAPM_MIC("Int Mic", NULL),
9351 	SND_SOC_DAPM_SPK("Ext Spk", NULL),
....@@ -109,7 +67,7 @@
10967  */
11068 static int at91sam9g20ek_wm8731_init(struct snd_soc_pcm_runtime *rtd)
11169 {
112
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
70
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
11371 	struct device *dev = rtd->dev;
11472 	int ret;
11573 
....@@ -129,16 +87,18 @@
12987 	return 0;
13088 }
13189 
90
+SND_SOC_DAILINK_DEFS(pcm,
91
+	DAILINK_COMP_ARRAY(COMP_CPU("at91rm9200_ssc.0")),
92
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm8731.0-001b", "wm8731-hifi")),
93
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("at91rm9200_ssc.0")));
94
+
13295 static struct snd_soc_dai_link at91sam9g20ek_dai = {
13396 	.name = "WM8731",
13497 	.stream_name = "WM8731 PCM",
135
-	.cpu_dai_name = "at91rm9200_ssc.0",
136
-	.codec_dai_name = "wm8731-hifi",
13798 	.init = at91sam9g20ek_wm8731_init,
138
-	.platform_name = "at91rm9200_ssc.0",
139
-	.codec_name = "wm8731.0-001b",
14099 	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
141100 		   SND_SOC_DAIFMT_CBM_CFM,
101
+	SND_SOC_DAILINK_REG(pcm),
142102 };
143103 
144104 static struct snd_soc_card snd_soc_at91sam9g20ek = {
....@@ -146,7 +106,6 @@
146106 	.owner = THIS_MODULE,
147107 	.dai_link = &at91sam9g20ek_dai,
148108 	.num_links = 1,
149
-	.set_bias_level = at91sam9g20ek_set_bias_level,
150109 
151110 	.dapm_widgets = at91sam9g20ek_dapm_widgets,
152111 	.num_dapm_widgets = ARRAY_SIZE(at91sam9g20ek_dapm_widgets),
....@@ -159,7 +118,6 @@
159118 {
160119 	struct device_node *np = pdev->dev.of_node;
161120 	struct device_node *codec_np, *cpu_np;
162
-	struct clk *pllb;
163121 	struct snd_soc_card *card = &snd_soc_at91sam9g20ek;
164122 	int ret;
165123 
....@@ -172,31 +130,6 @@
172130 		dev_err(&pdev->dev, "ssc channel is not valid\n");
173131 		return -EINVAL;
174132 	}
175
-
176
-	/*
177
-	 * Codec MCLK is supplied by PCK0 - set it up.
178
-	 */
179
-	mclk = clk_get(NULL, "pck0");
180
-	if (IS_ERR(mclk)) {
181
-		dev_err(&pdev->dev, "Failed to get MCLK\n");
182
-		ret = PTR_ERR(mclk);
183
-		goto err;
184
-	}
185
-
186
-	pllb = clk_get(NULL, "pllb");
187
-	if (IS_ERR(pllb)) {
188
-		dev_err(&pdev->dev, "Failed to get PLLB\n");
189
-		ret = PTR_ERR(pllb);
190
-		goto err_mclk;
191
-	}
192
-	ret = clk_set_parent(mclk, pllb);
193
-	clk_put(pllb);
194
-	if (ret != 0) {
195
-		dev_err(&pdev->dev, "Failed to set MCLK parent\n");
196
-		goto err_mclk;
197
-	}
198
-
199
-	clk_set_rate(mclk, MCLK_RATE);
200133 
201134 	card->dev = &pdev->dev;
202135 
....@@ -211,24 +144,25 @@
211144 		goto err;
212145 
213146 	/* Parse codec info */
214
-	at91sam9g20ek_dai.codec_name = NULL;
147
+	at91sam9g20ek_dai.codecs->name = NULL;
215148 	codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
216149 	if (!codec_np) {
217150 		dev_err(&pdev->dev, "codec info missing\n");
218151 		return -EINVAL;
219152 	}
220
-	at91sam9g20ek_dai.codec_of_node = codec_np;
153
+	at91sam9g20ek_dai.codecs->of_node = codec_np;
221154 
222155 	/* Parse dai and platform info */
223
-	at91sam9g20ek_dai.cpu_dai_name = NULL;
224
-	at91sam9g20ek_dai.platform_name = NULL;
156
+	at91sam9g20ek_dai.cpus->dai_name = NULL;
157
+	at91sam9g20ek_dai.platforms->name = NULL;
225158 	cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
226159 	if (!cpu_np) {
227160 		dev_err(&pdev->dev, "dai and pcm info missing\n");
161
+		of_node_put(codec_np);
228162 		return -EINVAL;
229163 	}
230
-	at91sam9g20ek_dai.cpu_of_node = cpu_np;
231
-	at91sam9g20ek_dai.platform_of_node = cpu_np;
164
+	at91sam9g20ek_dai.cpus->of_node = cpu_np;
165
+	at91sam9g20ek_dai.platforms->of_node = cpu_np;
232166 
233167 	of_node_put(codec_np);
234168 	of_node_put(cpu_np);
....@@ -240,9 +174,6 @@
240174 
241175 	return ret;
242176 
243
-err_mclk:
244
-	clk_put(mclk);
245
-	mclk = NULL;
246177 err:
247178 	atmel_ssc_put_audio(0);
248179 	return ret;
....@@ -252,8 +183,6 @@
252183 {
253184 	struct snd_soc_card *card = platform_get_drvdata(pdev);
254185 
255
-	clk_disable(mclk);
256
-	mclk = NULL;
257186 	snd_soc_unregister_card(card);
258187 	atmel_ssc_put_audio(0);
259188