Merge remote-tracking branches 'asoc/topic/da7219', 'asoc/topic/da732x',...

Merge remote-tracking branches 'asoc/topic/da7219', 'asoc/topic/da732x', 'asoc/topic/da9055' and 'asoc/topic/dmic' into asoc-next

Documentation/devicetree/bindings/sound/da7219.txt

@@ -25,6 +25,9 @@ Optional properties:
   interrupt is to be used to wake system, otherwise "irq" should be used.
 - wakeup-source: Flag to indicate this device can wake system (suspend/resume).
 
+- #clock-cells :  Should be set to '<0>', only one clock source provided;
+- clock-output-names : Name given for DAI clocks output;
+
 - clocks : phandle and clock specifier for codec MCLK.
 - clock-names : Clock name string for 'clocks' attribute, should be "mclk".
 
@@ -83,6 +86,9 @@ Example:
 		VDDMIC-supply = <&reg_audio>;
 		VDDIO-supply = <&reg_audio>;
 
+		#clock-cells = <0>;
+		clock-output-names = "dai-clks";
+
 		clocks = <&clks 201>;
 		clock-names = "mclk";
 

Documentation/devicetree/bindings/sound/dmic.txt

@@ -8,6 +8,7 @@ Required properties:
 Optional properties:
 	- dmicen-gpios: GPIO specifier for dmic to control start and stop
 	- num-channels: Number of microphones on this DAI
+	- wakeup-delay-ms: Delay (in ms) after enabling the DMIC
 
 Example node:
 
@@ -15,4 +16,5 @@ Example node:
 		compatible = "dmic-codec";
 		dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
 		num-channels = <1>;
+		wakeup-delay-ms <50>;
 	};

include/sound/da7219.h

@@ -36,6 +36,8 @@ struct da7219_aad_pdata;
 struct da7219_pdata {
 	bool wakeup_source;
 
+	const char *dai_clks_name;
+
 	/* Mic */
 	enum da7219_micbias_voltage micbias_lvl;
 	enum da7219_mic_amp_in_sel mic_amp_in_sel;

sound/soc/codecs/da7219.c

@@ -13,6 +13,8 @@
 
 #include <linux/acpi.h>
 #include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/i2c.h>
 #include <linux/of_device.h>
 #include <linux/property.h>
@@ -772,16 +774,27 @@ static int da7219_dai_event(struct snd_soc_dapm_widget *w,
 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 	struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 	u8 pll_ctrl, pll_status;
-	int i = 0;
+	int i = 0, ret;
 	bool srm_lock = false;
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		if (da7219->master)
+		if (da7219->master) {
 			/* Enable DAI clks for master mode */
-			snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
+			if (da7219->dai_clks) {
+				ret = clk_prepare_enable(da7219->dai_clks);
+				if (ret) {
+					dev_err(component->dev,
+						"Failed to enable dai_clks\n");
+					return ret;
+				}
+			} else {
+				snd_soc_component_update_bits(component,
+							      DA7219_DAI_CLK_MODE,
 							      DA7219_DAI_CLK_EN_MASK,
 							      DA7219_DAI_CLK_EN_MASK);
+			}
+		}
 
 		/* PC synchronised to DAI */
 		snd_soc_component_update_bits(component, DA7219_PC_COUNT,
@@ -814,9 +827,16 @@ static int da7219_dai_event(struct snd_soc_dapm_widget *w,
 				    DA7219_PC_FREERUN_MASK);
 
 		/* Disable DAI clks if in master mode */
-		if (da7219->master)
-			snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
-					    DA7219_DAI_CLK_EN_MASK, 0);
+		if (da7219->master) {
+			if (da7219->dai_clks)
+				clk_disable_unprepare(da7219->dai_clks);
+			else
+				snd_soc_component_update_bits(component,
+							      DA7219_DAI_CLK_MODE,
+							      DA7219_DAI_CLK_EN_MASK,
+							      0);
+		}
+
 		return 0;
 	default:
 		return -EINVAL;
@@ -1598,6 +1618,12 @@ static struct da7219_pdata *da7219_fw_to_pdata(struct snd_soc_component *compone
 
 	pdata->wakeup_source = device_property_read_bool(dev, "wakeup-source");
 
+	pdata->dai_clks_name = "da7219-dai-clks";
+	if (device_property_read_string(dev, "clock-output-names",
+					&pdata->dai_clks_name))
+		dev_warn(dev, "Using default clk name: %s\n",
+			 pdata->dai_clks_name);
+
 	if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0)
 		pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32);
 	else
@@ -1712,6 +1738,88 @@ static int da7219_handle_supplies(struct snd_soc_component *component)
 	return 0;
 }
 
+#ifdef CONFIG_COMMON_CLK
+static int da7219_dai_clks_prepare(struct clk_hw *hw)
+{
+	struct da7219_priv *da7219 =
+		container_of(hw, struct da7219_priv, dai_clks_hw);
+	struct snd_soc_component *component = da7219->aad->component;
+
+	snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
+				      DA7219_DAI_CLK_EN_MASK,
+				      DA7219_DAI_CLK_EN_MASK);
+
+	return 0;
+}
+
+static void da7219_dai_clks_unprepare(struct clk_hw *hw)
+{
+	struct da7219_priv *da7219 =
+		container_of(hw, struct da7219_priv, dai_clks_hw);
+	struct snd_soc_component *component = da7219->aad->component;
+
+	snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
+				      DA7219_DAI_CLK_EN_MASK, 0);
+}
+
+static int da7219_dai_clks_is_prepared(struct clk_hw *hw)
+{
+	struct da7219_priv *da7219 =
+		container_of(hw, struct da7219_priv, dai_clks_hw);
+	struct snd_soc_component *component = da7219->aad->component;
+	u8 clk_reg;
+
+	clk_reg = snd_soc_component_read32(component, DA7219_DAI_CLK_MODE);
+
+	return !!(clk_reg & DA7219_DAI_CLK_EN_MASK);
+}
+
+static const struct clk_ops da7219_dai_clks_ops = {
+	.prepare = da7219_dai_clks_prepare,
+	.unprepare = da7219_dai_clks_unprepare,
+	.is_prepared = da7219_dai_clks_is_prepared,
+};
+
+static void da7219_register_dai_clks(struct snd_soc_component *component)
+{
+	struct device *dev = component->dev;
+	struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
+	struct da7219_pdata *pdata = da7219->pdata;
+	struct clk_init_data init = {};
+	struct clk *dai_clks;
+	struct clk_lookup *dai_clks_lookup;
+
+	init.parent_names = NULL;
+	init.num_parents = 0;
+	init.name = pdata->dai_clks_name;
+	init.ops = &da7219_dai_clks_ops;
+	da7219->dai_clks_hw.init = &init;
+
+	dai_clks = devm_clk_register(dev, &da7219->dai_clks_hw);
+	if (IS_ERR(dai_clks)) {
+		dev_warn(dev, "Failed to register DAI clocks: %ld\n",
+			 PTR_ERR(dai_clks));
+		return;
+	}
+	da7219->dai_clks = dai_clks;
+
+	/* If we're using DT, then register as provider accordingly */
+	if (dev->of_node) {
+		devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get,
+					    &da7219->dai_clks_hw);
+	} else {
+		dai_clks_lookup = clkdev_create(dai_clks, pdata->dai_clks_name,
+						"%s", dev_name(dev));
+		if (!dai_clks_lookup)
+			dev_warn(dev, "Failed to create DAI clkdev");
+		else
+			da7219->dai_clks_lookup = dai_clks_lookup;
+	}
+}
+#else
+static inline void da7219_register_dai_clks(struct snd_soc_component *component) {}
+#endif /* CONFIG_COMMON_CLK */
+
 static void da7219_handle_pdata(struct snd_soc_component *component)
 {
 	struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
@@ -1722,6 +1830,8 @@ static void da7219_handle_pdata(struct snd_soc_component *component)
 
 		da7219->wakeup_source = pdata->wakeup_source;
 
+		da7219_register_dai_clks(component);
+
 		/* Mic Bias voltages */
 		switch (pdata->micbias_lvl) {
 		case DA7219_MICBIAS_1_6V:
@@ -1856,6 +1966,11 @@ static void da7219_remove(struct snd_soc_component *component)
 
 	da7219_aad_exit(component);
 
+#ifdef CONFIG_COMMON_CLK
+	if (da7219->dai_clks_lookup)
+		clkdev_drop(da7219->dai_clks_lookup);
+#endif
+
 	/* Supplies */
 	regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
 }

sound/soc/codecs/da7219.h

@@ -14,6 +14,9 @@
 #ifndef __DA7219_H
 #define __DA7219_H
 
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <sound/da7219.h>
@@ -813,6 +816,12 @@ struct da7219_priv {
 	struct mutex ctrl_lock;
 	struct mutex pll_lock;
 
+#ifdef CONFIG_COMMON_CLK
+	struct clk_hw dai_clks_hw;
+#endif
+	struct clk_lookup *dai_clks_lookup;
+	struct clk *dai_clks;
+
 	struct clk *mclk;
 	unsigned int mclk_rate;
 	int clk_src;

sound/soc/codecs/dmic.c

@@ -19,6 +19,7 @@
  *
  */
 
+#include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/platform_device.h>
@@ -29,34 +30,33 @@
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 
-static int dmic_daiops_trigger(struct snd_pcm_substream *substream,
-		int cmd, struct snd_soc_dai *dai)
-{
-	struct gpio_desc *dmic_en = snd_soc_dai_get_drvdata(dai);
+struct dmic {
+	struct gpio_desc *gpio_en;
+	int wakeup_delay;
+};
 
-	if (!dmic_en)
-		return 0;
+static int dmic_aif_event(struct snd_soc_dapm_widget *w,
+			  struct snd_kcontrol *kcontrol, int event) {
+	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+	struct dmic *dmic = snd_soc_component_get_drvdata(component);
+
+	switch (event) {
+	case SND_SOC_DAPM_POST_PMU:
+		if (dmic->gpio_en)
+			gpiod_set_value(dmic->gpio_en, 1);
 
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-	case SNDRV_PCM_TRIGGER_RESUME:
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		gpiod_set_value(dmic_en, 1);
+		if (dmic->wakeup_delay)
+			msleep(dmic->wakeup_delay);
 		break;
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		gpiod_set_value(dmic_en, 0);
+	case SND_SOC_DAPM_POST_PMD:
+		if (dmic->gpio_en)
+			gpiod_set_value(dmic->gpio_en, 0);
 		break;
 	}
 
 	return 0;
 }
 
-static const struct snd_soc_dai_ops dmic_dai_ops = {
-	.trigger	= dmic_daiops_trigger,
-};
-
 static struct snd_soc_dai_driver dmic_dai = {
 	.name = "dmic-hifi",
 	.capture = {
@@ -68,26 +68,33 @@ static struct snd_soc_dai_driver dmic_dai = {
 			| SNDRV_PCM_FMTBIT_S24_LE
 			| SNDRV_PCM_FMTBIT_S16_LE,
 	},
-	.ops    = &dmic_dai_ops,
 };
 
-static int dmic_codec_probe(struct snd_soc_codec *codec)
+static int dmic_component_probe(struct snd_soc_component *component)
 {
-	struct gpio_desc *dmic_en;
+	struct dmic *dmic;
+
+	dmic = devm_kzalloc(component->dev, sizeof(*dmic), GFP_KERNEL);
+	if (!dmic)
+		return -ENOMEM;
 
-	dmic_en = devm_gpiod_get_optional(codec->dev,
+	dmic->gpio_en = devm_gpiod_get_optional(component->dev,
 						"dmicen", GPIOD_OUT_LOW);
-	if (IS_ERR(dmic_en))
-		return PTR_ERR(dmic_en);
+	if (IS_ERR(dmic->gpio_en))
+		return PTR_ERR(dmic->gpio_en);
+
+	device_property_read_u32(component->dev, "wakeup-delay-ms",
+				 &dmic->wakeup_delay);
 
-	snd_soc_codec_set_drvdata(codec, dmic_en);
+	snd_soc_component_set_drvdata(component, dmic);
 
 	return 0;
 }
 
 static const struct snd_soc_dapm_widget dmic_dapm_widgets[] = {
-	SND_SOC_DAPM_AIF_OUT("DMIC AIF", "Capture", 0,
-			     SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT_E("DMIC AIF", "Capture", 0,
+			       SND_SOC_NOPM, 0, 0, dmic_aif_event,
+			       SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
 	SND_SOC_DAPM_INPUT("DMic"),
 };
 
@@ -95,14 +102,16 @@ static const struct snd_soc_dapm_route intercon[] = {
 	{"DMIC AIF", NULL, "DMic"},
 };
 
-static const struct snd_soc_codec_driver soc_dmic = {
-	.probe = dmic_codec_probe,
-	.component_driver = {
+static const struct snd_soc_component_driver soc_dmic = {
+	.probe			= dmic_component_probe,
 	.dapm_widgets		= dmic_dapm_widgets,
 	.num_dapm_widgets	= ARRAY_SIZE(dmic_dapm_widgets),
 	.dapm_routes		= intercon,
 	.num_dapm_routes	= ARRAY_SIZE(intercon),
-	},
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+	.non_legacy_dai_naming	= 1,
 };
 
 static int dmic_dev_probe(struct platform_device *pdev)
@@ -129,16 +138,10 @@ static int dmic_dev_probe(struct platform_device *pdev)
 		}
 	}
 
-	return snd_soc_register_codec(&pdev->dev,
+	return devm_snd_soc_register_component(&pdev->dev,
 			&soc_dmic, dai_drv, 1);
 }
 
-static int dmic_dev_remove(struct platform_device *pdev)
-{
-	snd_soc_unregister_codec(&pdev->dev);
-	return 0;
-}
-
 MODULE_ALIAS("platform:dmic-codec");
 
 static const struct of_device_id dmic_dev_match[] = {
@@ -152,7 +155,6 @@ static struct platform_driver dmic_driver = {
 		.of_match_table = dmic_dev_match,
 	},
 	.probe = dmic_dev_probe,
-	.remove = dmic_dev_remove,
 };
 
 module_platform_driver(dmic_driver);