9 files changed, 82 insertions, 111 deletions

diff --git a/Documentation/devicetree/bindings/sound/omap-mcpdm.txt b/Documentation/devicetree/bindings/sound/omap-mcpdm.txt
index 6f6c2f8e908d..0741dff048dd 100644
--- a/Documentation/devicetree/bindings/sound/omap-mcpdm.txt
+++ b/Documentation/devicetree/bindings/sound/omap-mcpdm.txt
@@ -8,8 +8,6 @@ Required properties:
 - interrupts: Interrupt number for McPDM
 - interrupt-parent: The parent interrupt controller
 - ti,hwmods: Name of the hwmod associated to the McPDM
-- clocks:  phandle for the pdmclk provider, likely <&twl6040>
-- clock-names: Must be "pdmclk"
 
 Example:
 
@@ -21,11 +19,3 @@ mcpdm: mcpdm@40132000 {
 	interrupt-parent = <&gic>;
 	ti,hwmods = "mcpdm";
 };
-
-In board DTS file the pdmclk needs to be added:
-
-&mcpdm {
-	clocks = <&twl6040>;
-	clock-names = "pdmclk";
-	status = "okay";
-};
diff --git a/sound/soc/codecs/max98371.c b/sound/soc/codecs/max98371.c
index cf0a39bb631a..02352ed8961c 100644
--- a/sound/soc/codecs/max98371.c
+++ b/sound/soc/codecs/max98371.c
@@ -412,6 +412,7 @@ static int max98371_i2c_remove(struct i2c_client *client)
 
 static const struct i2c_device_id max98371_i2c_id[] = {
 	{ "max98371", 0 },
+	{ }
 };
 
 MODULE_DEVICE_TABLE(i2c, max98371_i2c_id);
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 5c9707ac4bbf..2e59a85e360b 100644
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -212,31 +212,6 @@ static const unsigned short logtable[256] = {
 	0xfa2f, 0xfaea, 0xfba5, 0xfc60, 0xfd1a, 0xfdd4, 0xfe8e, 0xff47
 };
 
-static struct snd_soc_dai *nau8825_get_codec_dai(struct nau8825 *nau8825)
-{
-	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(nau8825->dapm);
-	struct snd_soc_component *component = &codec->component;
-	struct snd_soc_dai *codec_dai, *_dai;
-
-	list_for_each_entry_safe(codec_dai, _dai, &component->dai_list, list) {
-		if (!strncmp(codec_dai->name, NUVOTON_CODEC_DAI,
-			strlen(NUVOTON_CODEC_DAI)))
-			return codec_dai;
-	}
-	return NULL;
-}
-
-static bool nau8825_dai_is_active(struct nau8825 *nau8825)
-{
-	struct snd_soc_dai *codec_dai = nau8825_get_codec_dai(nau8825);
-
-	if (codec_dai) {
-		if (codec_dai->playback_active || codec_dai->capture_active)
-			return true;
-	}
-	return false;
-}
-
 /**
  * nau8825_sema_acquire - acquire the semaphore of nau88l25
  * @nau8825:  component to register the codec private data with
@@ -250,19 +225,26 @@ static bool nau8825_dai_is_active(struct nau8825 *nau8825)
  * Acquires the semaphore without jiffies. If no more tasks are allowed
  * to acquire the semaphore, calling this function will put the task to
  * sleep until the semaphore is released.
- * It returns if the semaphore was acquired.
+ * If the semaphore is not released within the specified number of jiffies,
+ * this function returns -ETIME.
+ * If the sleep is interrupted by a signal, this function will return -EINTR.
+ * It returns 0 if the semaphore was acquired successfully.
  */
-static void nau8825_sema_acquire(struct nau8825 *nau8825, long timeout)
+static int nau8825_sema_acquire(struct nau8825 *nau8825, long timeout)
 {
 	int ret;
 
-	if (timeout)
+	if (timeout) {
 		ret = down_timeout(&nau8825->xtalk_sem, timeout);
-	else
+		if (ret < 0)
+			dev_warn(nau8825->dev, "Acquire semaphone timeout\n");
+	} else {
 		ret = down_interruptible(&nau8825->xtalk_sem);
+		if (ret < 0)
+			dev_warn(nau8825->dev, "Acquire semaphone fail\n");
+	}
 
-	if (ret < 0)
-		dev_warn(nau8825->dev, "Acquire semaphone fail\n");
+	return ret;
 }
 
 /**
@@ -1205,6 +1187,8 @@ static int nau8825_hw_params(struct snd_pcm_substream *substream,
 	struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
 	unsigned int val_len = 0;
 
+	nau8825_sema_acquire(nau8825, 2 * HZ);
+
 	switch (params_width(params)) {
 	case 16:
 		val_len |= NAU8825_I2S_DL_16;
@@ -1225,6 +1209,9 @@ static int nau8825_hw_params(struct snd_pcm_substream *substream,
 	regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL1,
 		NAU8825_I2S_DL_MASK, val_len);
 
+	/* Release the semaphone. */
+	nau8825_sema_release(nau8825);
+
 	return 0;
 }
 
@@ -1234,6 +1221,8 @@ static int nau8825_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 	struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
 	unsigned int ctrl1_val = 0, ctrl2_val = 0;
 
+	nau8825_sema_acquire(nau8825, 2 * HZ);
+
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBM_CFM:
 		ctrl2_val |= NAU8825_I2S_MS_MASTER;
@@ -1282,6 +1271,9 @@ static int nau8825_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 	regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2,
 		NAU8825_I2S_MS_MASK, ctrl2_val);
 
+	/* Release the semaphone. */
+	nau8825_sema_release(nau8825);
+
 	return 0;
 }
 
@@ -1611,8 +1603,11 @@ static irqreturn_t nau8825_interrupt(int irq, void *data)
 					 * cess and restore changes if process
 					 * is ongoing when ejection.
 					 */
+					int ret;
 					nau8825->xtalk_protect = true;
-					nau8825_sema_acquire(nau8825, 0);
+					ret = nau8825_sema_acquire(nau8825, 0);
+					if (ret < 0)
+						nau8825->xtalk_protect = false;
 				}
 				/* Startup cross talk detection process */
 				nau8825->xtalk_state = NAU8825_XTALK_PREPARE;
@@ -2238,23 +2233,14 @@ static int __maybe_unused nau8825_suspend(struct snd_soc_codec *codec)
 static int __maybe_unused nau8825_resume(struct snd_soc_codec *codec)
 {
 	struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+	int ret;
 
 	regcache_cache_only(nau8825->regmap, false);
 	regcache_sync(nau8825->regmap);
-	if (nau8825_is_jack_inserted(nau8825->regmap)) {
-		/* If the jack is inserted, we need to check whether the play-
-		 * back is active before suspend. If active, the driver has to
-		 * raise the protection for cross talk function to avoid the
-		 * playback recovers before cross talk process finish. Other-
-		 * wise, the playback will be interfered by cross talk func-
-		 * tion. It is better to apply hardware related parameters
-		 * before starting playback or record.
-		 */
-		if (nau8825_dai_is_active(nau8825)) {
-			nau8825->xtalk_protect = true;
-			nau8825_sema_acquire(nau8825, 0);
-		}
-	}
+	nau8825->xtalk_protect = true;
+	ret = nau8825_sema_acquire(nau8825, 0);
+	if (ret < 0)
+		nau8825->xtalk_protect = false;
 	enable_irq(nau8825->irq);
 
 	return 0;
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index a67ea10f41a1..f2664396be6f 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -581,7 +581,7 @@ static int wm2000_anc_transition(struct wm2000_priv *wm2000,
 	if (anc_transitions[i].dest == ANC_OFF)
 		clk_disable_unprepare(wm2000->mclk);
 
-	return ret;
+	return 0;
 }
 
 static int wm2000_anc_set_mode(struct wm2000_priv *wm2000)
diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile
index 45602ca8536e..2d53c8d70705 100644
--- a/sound/soc/generic/Makefile
+++ b/sound/soc/generic/Makefile
@@ -1,5 +1,5 @@
-obj-$(CONFIG_SND_SIMPLE_CARD_UTILS) := simple-card-utils.o
-
+snd-soc-simple-card-utils-objs	:= simple-card-utils.o
 snd-soc-simple-card-objs	:= simple-card.o
 
-obj-$(CONFIG_SND_SIMPLE_CARD)	+= snd-soc-simple-card.o
+obj-$(CONFIG_SND_SIMPLE_CARD_UTILS)	+= snd-soc-simple-card-utils.o
+obj-$(CONFIG_SND_SIMPLE_CARD)		+= snd-soc-simple-card.o
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index d89a9a1b2471..9599de69a880 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -7,6 +7,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/module.h>
 #include <linux/of.h>
 #include <sound/simple_card_utils.h>
 
@@ -95,3 +96,8 @@ int asoc_simple_card_parse_card_name(struct snd_soc_card *card,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(asoc_simple_card_parse_card_name);
+
+/* Module information */
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/omap/omap-abe-twl6040.c b/sound/soc/omap/omap-abe-twl6040.c
index 0843a68f277c..f61b3b58083b 100644
--- a/sound/soc/omap/omap-abe-twl6040.c
+++ b/sound/soc/omap/omap-abe-twl6040.c
@@ -38,10 +38,10 @@
 struct abe_twl6040 {
 	int	jack_detection;	/* board can detect jack events */
 	int	mclk_freq;	/* MCLK frequency speed for twl6040 */
-
-	struct platform_device *dmic_codec_dev;
 };
 
+struct platform_device *dmic_codec_dev;
+
 static int omap_abe_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params)
 {
@@ -258,8 +258,6 @@ static int omap_abe_probe(struct platform_device *pdev)
 	if (priv == NULL)
 		return -ENOMEM;
 
-	priv->dmic_codec_dev = ERR_PTR(-EINVAL);
-
 	if (snd_soc_of_parse_card_name(card, "ti,model")) {
 		dev_err(&pdev->dev, "Card name is not provided\n");
 		return -ENODEV;
@@ -284,13 +282,6 @@ static int omap_abe_probe(struct platform_device *pdev)
 		num_links = 2;
 		abe_twl6040_dai_links[1].cpu_of_node = dai_node;
 		abe_twl6040_dai_links[1].platform_of_node = dai_node;
-
-		priv->dmic_codec_dev = platform_device_register_simple(
-						"dmic-codec", -1, NULL, 0);
-		if (IS_ERR(priv->dmic_codec_dev)) {
-			dev_err(&pdev->dev, "Can't instantiate dmic-codec\n");
-			return PTR_ERR(priv->dmic_codec_dev);
-		}
 	} else {
 		num_links = 1;
 	}
@@ -299,16 +290,14 @@ static int omap_abe_probe(struct platform_device *pdev)
 	of_property_read_u32(node, "ti,mclk-freq", &priv->mclk_freq);
 	if (!priv->mclk_freq) {
 		dev_err(&pdev->dev, "MCLK frequency not provided\n");
-		ret = -EINVAL;
-		goto err_unregister;
+		return -EINVAL;
 	}
 
 	card->fully_routed = 1;
 
 	if (!priv->mclk_freq) {
 		dev_err(&pdev->dev, "MCLK frequency missing\n");
-		ret = -ENODEV;
-		goto err_unregister;
+		return -ENODEV;
 	}
 
 	card->dai_link = abe_twl6040_dai_links;
@@ -317,17 +306,9 @@ static int omap_abe_probe(struct platform_device *pdev)
 	snd_soc_card_set_drvdata(card, priv);
 
 	ret = snd_soc_register_card(card);
-	if (ret) {
+	if (ret)
 		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 			ret);
-		goto err_unregister;
-	}
-
-	return 0;
-
-err_unregister:
-	if (!IS_ERR(priv->dmic_codec_dev))
-		platform_device_unregister(priv->dmic_codec_dev);
 
 	return ret;
 }
@@ -335,13 +316,9 @@ err_unregister:
 static int omap_abe_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
-	struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
 
 	snd_soc_unregister_card(card);
 
-	if (!IS_ERR(priv->dmic_codec_dev))
-		platform_device_unregister(priv->dmic_codec_dev);
-
 	return 0;
 }
 
@@ -361,7 +338,33 @@ static struct platform_driver omap_abe_driver = {
 	.remove = omap_abe_remove,
 };
 
-module_platform_driver(omap_abe_driver);
+static int __init omap_abe_init(void)
+{
+	int ret;
+
+	dmic_codec_dev = platform_device_register_simple("dmic-codec", -1, NULL,
+							 0);
+	if (IS_ERR(dmic_codec_dev)) {
+		pr_err("%s: dmic-codec device registration failed\n", __func__);
+		return PTR_ERR(dmic_codec_dev);
+	}
+
+	ret = platform_driver_register(&omap_abe_driver);
+	if (ret) {
+		pr_err("%s: platform driver registration failed\n", __func__);
+		platform_device_unregister(dmic_codec_dev);
+	}
+
+	return ret;
+}
+module_init(omap_abe_init);
+
+static void __exit omap_abe_exit(void)
+{
+	platform_driver_unregister(&omap_abe_driver);
+	platform_device_unregister(dmic_codec_dev);
+}
+module_exit(omap_abe_exit);
 
 MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
 MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec");
diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c
index e7cdc51fd806..64609c77a79d 100644
--- a/sound/soc/omap/omap-mcpdm.c
+++ b/sound/soc/omap/omap-mcpdm.c
@@ -31,7 +31,6 @@
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/irq.h>
-#include <linux/clk.h>
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
 #include <linux/of_device.h>
@@ -55,7 +54,6 @@ struct omap_mcpdm {
 	unsigned long phys_base;
 	void __iomem *io_base;
 	int irq;
-	struct clk *pdmclk;
 
 	struct mutex mutex;
 
@@ -390,15 +388,14 @@ static int omap_mcpdm_probe(struct snd_soc_dai *dai)
 	struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
 	int ret;
 
-	clk_prepare_enable(mcpdm->pdmclk);
 	pm_runtime_enable(mcpdm->dev);
 
 	/* Disable lines while request is ongoing */
 	pm_runtime_get_sync(mcpdm->dev);
 	omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, 0x00);
 
-	ret = devm_request_irq(mcpdm->dev, mcpdm->irq, omap_mcpdm_irq_handler,
-				0, "McPDM", (void *)mcpdm);
+	ret = request_irq(mcpdm->irq, omap_mcpdm_irq_handler, 0, "McPDM",
+			  (void *)mcpdm);
 
 	pm_runtime_put_sync(mcpdm->dev);
 
@@ -423,9 +420,9 @@ static int omap_mcpdm_remove(struct snd_soc_dai *dai)
 {
 	struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
 
+	free_irq(mcpdm->irq, (void *)mcpdm);
 	pm_runtime_disable(mcpdm->dev);
 
-	clk_disable_unprepare(mcpdm->pdmclk);
 	return 0;
 }
 
@@ -445,8 +442,6 @@ static int omap_mcpdm_suspend(struct snd_soc_dai *dai)
 		mcpdm->pm_active_count++;
 	}
 
-	clk_disable_unprepare(mcpdm->pdmclk);
-
 	return 0;
 }
 
@@ -454,8 +449,6 @@ static int omap_mcpdm_resume(struct snd_soc_dai *dai)
 {
 	struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
 
-	clk_prepare_enable(mcpdm->pdmclk);
-
 	if (mcpdm->pm_active_count) {
 		while (mcpdm->pm_active_count--)
 			pm_runtime_get_sync(mcpdm->dev);
@@ -549,15 +542,6 @@ static int asoc_mcpdm_probe(struct platform_device *pdev)
 
 	mcpdm->dev = &pdev->dev;
 
-	mcpdm->pdmclk = devm_clk_get(&pdev->dev, "pdmclk");
-	if (IS_ERR(mcpdm->pdmclk)) {
-		if (PTR_ERR(mcpdm->pdmclk) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-		dev_warn(&pdev->dev, "Error getting pdmclk (%ld)!\n",
-			 PTR_ERR(mcpdm->pdmclk));
-		mcpdm->pdmclk = NULL;
-	}
-
 	ret =  devm_snd_soc_register_component(&pdev->dev,
 					       &omap_mcpdm_component,
 					       &omap_mcpdm_dai, 1);
diff --git a/sound/soc/samsung/s3c24xx_uda134x.c b/sound/soc/samsung/s3c24xx_uda134x.c
index 50849e137fc0..92e88bca386e 100644
--- a/sound/soc/samsung/s3c24xx_uda134x.c
+++ b/sound/soc/samsung/s3c24xx_uda134x.c
@@ -58,10 +58,12 @@ static struct platform_device *s3c24xx_uda134x_snd_device;
 
 static int s3c24xx_uda134x_startup(struct snd_pcm_substream *substream)
 {
-	int ret = 0;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 #ifdef ENFORCE_RATES
 	struct snd_pcm_runtime *runtime = substream->runtime;
 #endif
+	int ret = 0;
 
 	mutex_lock(&clk_lock);
 	pr_debug("%s %d\n", __func__, clk_users);
@@ -71,8 +73,7 @@ static int s3c24xx_uda134x_startup(struct snd_pcm_substream *substream)
 			printk(KERN_ERR "%s cannot get xtal\n", __func__);
 			ret = PTR_ERR(xtal);
 		} else {
-			pclk = clk_get(&s3c24xx_uda134x_snd_device->dev,
-				       "pclk");
+			pclk = clk_get(cpu_dai->dev, "iis");
 			if (IS_ERR(pclk)) {
 				printk(KERN_ERR "%s cannot get pclk\n",
 				       __func__);