Merge remote-tracking branch 'asoc/topic/arizona' into asoc-next

drivers/input/misc/Kconfig

@@ -72,6 +72,16 @@ config INPUT_AD714X_SPI
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad714x-spi.
 
+config INPUT_ARIZONA_HAPTICS
+	tristate "Arizona haptics support"
+	depends on MFD_ARIZONA && SND_SOC
+	select INPUT_FF_MEMLESS
+	help
+	  Say Y to enable support for the haptics module in Arizona CODECs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called arizona-haptics.
+
 config INPUT_BMA150
 	tristate "BMA150/SMB380 acceleration sensor support"
 	depends on I2C

drivers/input/misc/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_INPUT_ADXL34X)		+= adxl34x.o
 obj-$(CONFIG_INPUT_ADXL34X_I2C)		+= adxl34x-i2c.o
 obj-$(CONFIG_INPUT_ADXL34X_SPI)		+= adxl34x-spi.o
 obj-$(CONFIG_INPUT_APANEL)		+= apanel.o
+obj-$(CONFIG_INPUT_ARIZONA_HAPTICS)	+= arizona-haptics.o
 obj-$(CONFIG_INPUT_ATI_REMOTE2)		+= ati_remote2.o
 obj-$(CONFIG_INPUT_ATLAS_BTNS)		+= atlas_btns.o
 obj-$(CONFIG_INPUT_BFIN_ROTARY)		+= bfin_rotary.o

drivers/input/misc/arizona-haptics.c

@@ -0,0 +1,255 @@
+/*
+ * Arizona haptics driver
+ *
+ * Copyright 2012 Wolfson Microelectronics plc
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * 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/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <linux/mfd/arizona/core.h>
+#include <linux/mfd/arizona/pdata.h>
+#include <linux/mfd/arizona/registers.h>
+
+struct arizona_haptics {
+	struct arizona *arizona;
+	struct input_dev *input_dev;
+	struct work_struct work;
+
+	struct mutex mutex;
+	u8 intensity;
+};
+
+static void arizona_haptics_work(struct work_struct *work)
+{
+	struct arizona_haptics *haptics = container_of(work,
+						       struct arizona_haptics,
+						       work);
+	struct arizona *arizona = haptics->arizona;
+	struct mutex *dapm_mutex = &arizona->dapm->card->dapm_mutex;
+	int ret;
+
+	if (!haptics->arizona->dapm) {
+		dev_err(arizona->dev, "No DAPM context\n");
+		return;
+	}
+
+	if (haptics->intensity) {
+		ret = regmap_update_bits(arizona->regmap,
+					 ARIZONA_HAPTICS_PHASE_2_INTENSITY,
+					 ARIZONA_PHASE2_INTENSITY_MASK,
+					 haptics->intensity);
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to set intensity: %d\n",
+				ret);
+			return;
+		}
+
+		/* This enable sequence will be a noop if already enabled */
+		ret = regmap_update_bits(arizona->regmap,
+					 ARIZONA_HAPTICS_CONTROL_1,
+					 ARIZONA_HAP_CTRL_MASK,
+					 1 << ARIZONA_HAP_CTRL_SHIFT);
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to start haptics: %d\n",
+				ret);
+			return;
+		}
+
+		mutex_lock_nested(dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
+
+		ret = snd_soc_dapm_enable_pin(arizona->dapm, "HAPTICS");
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to start HAPTICS: %d\n",
+				ret);
+			mutex_unlock(dapm_mutex);
+			return;
+		}
+
+		ret = snd_soc_dapm_sync(arizona->dapm);
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to sync DAPM: %d\n",
+				ret);
+			mutex_unlock(dapm_mutex);
+			return;
+		}
+
+		mutex_unlock(dapm_mutex);
+
+	} else {
+		/* This disable sequence will be a noop if already enabled */
+		mutex_lock_nested(dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
+
+		ret = snd_soc_dapm_disable_pin(arizona->dapm, "HAPTICS");
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to disable HAPTICS: %d\n",
+				ret);
+			mutex_unlock(dapm_mutex);
+			return;
+		}
+
+		ret = snd_soc_dapm_sync(arizona->dapm);
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to sync DAPM: %d\n",
+				ret);
+			mutex_unlock(dapm_mutex);
+			return;
+		}
+
+		mutex_unlock(dapm_mutex);
+
+		ret = regmap_update_bits(arizona->regmap,
+					 ARIZONA_HAPTICS_CONTROL_1,
+					 ARIZONA_HAP_CTRL_MASK,
+					 1 << ARIZONA_HAP_CTRL_SHIFT);
+		if (ret != 0) {
+			dev_err(arizona->dev, "Failed to stop haptics: %d\n",
+				ret);
+			return;
+		}
+	}
+}
+
+static int arizona_haptics_play(struct input_dev *input, void *data,
+				struct ff_effect *effect)
+{
+	struct arizona_haptics *haptics = input_get_drvdata(input);
+	struct arizona *arizona = haptics->arizona;
+
+	if (!arizona->dapm) {
+		dev_err(arizona->dev, "No DAPM context\n");
+		return -EBUSY;
+	}
+
+	if (effect->u.rumble.strong_magnitude) {
+		/* Scale the magnitude into the range the device supports */
+		if (arizona->pdata.hap_act) {
+			haptics->intensity =
+				effect->u.rumble.strong_magnitude >> 9;
+			if (effect->direction < 0x8000)
+				haptics->intensity += 0x7f;
+		} else {
+			haptics->intensity =
+				effect->u.rumble.strong_magnitude >> 8;
+		}
+	} else {
+		haptics->intensity = 0;
+	}
+
+	schedule_work(&haptics->work);
+
+	return 0;
+}
+
+static void arizona_haptics_close(struct input_dev *input)
+{
+	struct arizona_haptics *haptics = input_get_drvdata(input);
+	struct mutex *dapm_mutex = &haptics->arizona->dapm->card->dapm_mutex;
+
+	cancel_work_sync(&haptics->work);
+
+	mutex_lock_nested(dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
+
+	if (haptics->arizona->dapm)
+		snd_soc_dapm_disable_pin(haptics->arizona->dapm, "HAPTICS");
+
+	mutex_unlock(dapm_mutex);
+}
+
+static int arizona_haptics_probe(struct platform_device *pdev)
+{
+	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
+	struct arizona_haptics *haptics;
+	int ret;
+
+	haptics = devm_kzalloc(&pdev->dev, sizeof(*haptics), GFP_KERNEL);
+	if (!haptics)
+		return -ENOMEM;
+
+	haptics->arizona = arizona;
+
+	ret = regmap_update_bits(arizona->regmap, ARIZONA_HAPTICS_CONTROL_1,
+				 ARIZONA_HAP_ACT, arizona->pdata.hap_act);
+	if (ret != 0) {
+		dev_err(arizona->dev, "Failed to set haptics actuator: %d\n",
+			ret);
+		return ret;
+	}
+
+	INIT_WORK(&haptics->work, arizona_haptics_work);
+
+	haptics->input_dev = input_allocate_device();
+	if (haptics->input_dev == NULL) {
+		dev_err(arizona->dev, "Failed to allocate input device\n");
+		return -ENOMEM;
+	}
+
+	input_set_drvdata(haptics->input_dev, haptics);
+
+	haptics->input_dev->name = "arizona:haptics";
+	haptics->input_dev->dev.parent = pdev->dev.parent;
+	haptics->input_dev->close = arizona_haptics_close;
+	__set_bit(FF_RUMBLE, haptics->input_dev->ffbit);
+
+	ret = input_ff_create_memless(haptics->input_dev, NULL,
+				      arizona_haptics_play);
+	if (ret < 0) {
+		dev_err(arizona->dev, "input_ff_create_memless() failed: %d\n",
+			ret);
+		goto err_ialloc;
+	}
+
+	ret = input_register_device(haptics->input_dev);
+	if (ret < 0) {
+		dev_err(arizona->dev, "couldn't register input device: %d\n",
+			ret);
+		goto err_iff;
+	}
+
+	platform_set_drvdata(pdev, haptics);
+
+	return 0;
+
+err_iff:
+	if (haptics->input_dev)
+		input_ff_destroy(haptics->input_dev);
+err_ialloc:
+	input_free_device(haptics->input_dev);
+
+	return ret;
+}
+
+static int arizona_haptics_remove(struct platform_device *pdev)
+{
+	struct arizona_haptics *haptics = platform_get_drvdata(pdev);
+
+	input_unregister_device(haptics->input_dev);
+
+	return 0;
+}
+
+static struct platform_driver arizona_haptics_driver = {
+	.probe		= arizona_haptics_probe,
+	.remove		= arizona_haptics_remove,
+	.driver		= {
+		.name	= "arizona-haptics",
+		.owner	= THIS_MODULE,
+	},
+};
+module_platform_driver(arizona_haptics_driver);
+
+MODULE_ALIAS("platform:arizona-haptics");
+MODULE_DESCRIPTION("Arizona haptics driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");

drivers/mfd/arizona-core.c

@@ -272,6 +272,7 @@ static struct mfd_cell early_devs[] = {
 static struct mfd_cell wm5102_devs[] = {
 	{ .name = "arizona-extcon" },
 	{ .name = "arizona-gpio" },
+	{ .name = "arizona-haptics" },
 	{ .name = "arizona-micsupp" },
 	{ .name = "arizona-pwm" },
 	{ .name = "wm5102-codec" },
@@ -280,6 +281,7 @@ static struct mfd_cell wm5102_devs[] = {
 static struct mfd_cell wm5110_devs[] = {
 	{ .name = "arizona-extcon" },
 	{ .name = "arizona-gpio" },
+	{ .name = "arizona-haptics" },
 	{ .name = "arizona-micsupp" },
 	{ .name = "arizona-pwm" },
 	{ .name = "wm5110-codec" },

include/linux/mfd/arizona/core.h

@@ -78,6 +78,8 @@ enum arizona_type {
 
 #define ARIZONA_NUM_IRQ                   50
 
+struct snd_soc_dapm_context;
+
 struct arizona {
 	struct regmap *regmap;
 	struct device *dev;
@@ -98,6 +100,8 @@ struct arizona {
 
 	struct mutex clk_lock;
 	int clk32k_ref;
+
+	struct snd_soc_dapm_context *dapm;
 };
 
 int arizona_clk32k_enable(struct arizona *arizona);

include/linux/mfd/arizona/pdata.h

@@ -62,6 +62,9 @@
 
 #define ARIZONA_MAX_OUTPUT 6
 
+#define ARIZONA_HAP_ACT_ERM 0
+#define ARIZONA_HAP_ACT_LRA 2
+
 #define ARIZONA_MAX_PDM_SPK 2
 
 struct regulator_init_data;
@@ -114,6 +117,9 @@ struct arizona_pdata {
 
 	/** PDM speaker format */
 	unsigned int spk_fmt[ARIZONA_MAX_PDM_SPK];
+
+	/** Haptic actuator type */
+	unsigned int hap_act;
 };
 
 #endif

sound/soc/codecs/Kconfig

@@ -148,7 +148,9 @@ config SND_SOC_WM_HUBS
 
 config SND_SOC_WM_ADSP
 	tristate
+	default y if SND_SOC_WM5102=y
 	default y if SND_SOC_WM2200=y
+	default m if SND_SOC_WM5102=m
 	default m if SND_SOC_WM2200=m
 
 config SND_SOC_AB8500_CODEC

sound/soc/codecs/arizona.c

@@ -380,6 +380,18 @@ int arizona_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 	case 49152000:
 		val |= 3 << ARIZONA_SYSCLK_FREQ_SHIFT;
 		break;
+	case 67737600:
+	case 73728000:
+		val |= 4 << ARIZONA_SYSCLK_FREQ_SHIFT;
+		break;
+	case 90316800:
+	case 98304000:
+		val |= 5 << ARIZONA_SYSCLK_FREQ_SHIFT;
+		break;
+	case 135475200:
+	case 147456000:
+		val |= 6 << ARIZONA_SYSCLK_FREQ_SHIFT;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -925,6 +937,9 @@ int arizona_set_fll(struct arizona_fll *fll, int source,
 	bool ena;
 	int ret;
 
+	if (fll->fref == Fref && fll->fout == Fout)
+		return 0;
+
 	ret = regmap_read(arizona->regmap, fll->base + 1, &reg);
 	if (ret != 0) {
 		arizona_fll_err(fll, "Failed to read current state: %d\n",
@@ -970,6 +985,9 @@ int arizona_set_fll(struct arizona_fll *fll, int source,
 		if (ena)
 			pm_runtime_put_autosuspend(arizona->dev);
 
+		fll->fref = Fref;
+		fll->fout = Fout;
+
 		return 0;
 	}
 
@@ -1002,6 +1020,9 @@ int arizona_set_fll(struct arizona_fll *fll, int source,
 	if (ret == 0)
 		arizona_fll_warn(fll, "Timed out waiting for lock\n");
 
+	fll->fref = Fref;
+	fll->fout = Fout;
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(arizona_set_fll);