[1/5] drivers/mfd: Add Freescale MC13783 driver
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Message ID 1249981667-4366-2-git-send-email-s.hauer@pengutronix.de
State New, archived
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Series
  • [1/5] drivers/mfd: Add Freescale MC13783 driver
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Commit Message

Sascha Hauer Aug. 11, 2009, 9:07 a.m. UTC
This driver provides the core Freescale MC13783 support. It
registers the client platform_devices and provides access
to the A/D converter.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
---
 drivers/mfd/Kconfig                 |    8 +
 drivers/mfd/Makefile                |    2 +
 drivers/mfd/mc13783-core.c          |  440 +++++++++++++++++++++++++++++++++++
 include/linux/mfd/mc13783-private.h |  402 ++++++++++++++++++++++++++++++++
 include/linux/mfd/mc13783.h         |   79 +++++++
 5 files changed, 931 insertions(+), 0 deletions(-)
 create mode 100644 drivers/mfd/mc13783-core.c
 create mode 100644 include/linux/mfd/mc13783-private.h
 create mode 100644 include/linux/mfd/mc13783.h

Comments

Mark Brown Aug. 11, 2009, 10:15 a.m. UTC | #1
On Tue, Aug 11, 2009 at 11:07:43AM +0200, Sascha Hauer wrote:

> +static int __init pmic_init(void)
> +{
> +	return spi_register_driver(&pmic_driver);
> +}
> +module_init(pmic_init);

This should be subsys_initcall() so that the regulators can come up
early.
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Sascha Hauer Aug. 11, 2009, 11:38 a.m. UTC | #2
Hi Mark,

On Tue, Aug 11, 2009 at 11:12:40AM +0100, Mark Brown wrote:
> On Tue, Aug 11, 2009 at 11:07:43AM +0200, Sascha Hauer wrote:
> 
> > +/*
> > + * Register a client device.  This is non-fatal since there is no need to
> > + * fail the entire device init due to a single platform device failing.
> > + */
> > +static void mc13783_client_dev_register(struct mc13783 *mc13783,
> > +				       const char *name,
> > +				       struct platform_device **pdev)
> 
> Some of this code is looking distinctly familiar :)

Indeed, I added a 'based on' to the header.

> 
> > +#define	SW_SW1A		0
> > +#define	SW_SW1B		1
> 
> This and the other defines following look like they should probably be
> namespaced.

Ok.

Thanks for reviewing. I addressed these comments and the comments you made
to the other patches. I'll delay reposting a bit in case others have
comments aswell.

Sascha

Patch
diff mbox series

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 491ac0f..7212e82 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -228,6 +228,14 @@  config MFD_PCF50633
 	  facilities, and registers devices for the various functions
 	  so that function-specific drivers can bind to them.
 
+config MFD_MC13783
+	tristate "Support Freescale MC13783"
+	help
+	  Support for the Freescale MX13783 PMIC and audio CODEC. This
+	  driver provides common support for accessing  the device,
+	  additional drivers must be enabled in order to use the
+	  functionality of the device.
+
 config PCF50633_ADC
 	tristate "Support for NXP PCF50633 ADC"
 	depends on MFD_PCF50633
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 6f8a9a1..7262822 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -24,6 +24,8 @@  obj-$(CONFIG_MENELAUS)		+= menelaus.o
 
 obj-$(CONFIG_TWL4030_CORE)	+= twl4030-core.o twl4030-irq.o
 
+obj-$(CONFIG_MFD_MC13783)	+= mc13783-core.o
+
 obj-$(CONFIG_MFD_CORE)		+= mfd-core.o
 
 obj-$(CONFIG_EZX_PCAP)		+= ezx-pcap.o
diff --git a/drivers/mfd/mc13783-core.c b/drivers/mfd/mc13783-core.c
new file mode 100644
index 0000000..4db0ab2
--- /dev/null
+++ b/drivers/mfd/mc13783-core.c
@@ -0,0 +1,440 @@ 
+/*
+ * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * Initial development of this code was funded by
+ * Phytec Messtechnik GmbH, http://www.phytec.de
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/mfd/mc13783-private.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/completion.h>
+#include <linux/interrupt.h>
+#include <linux/spi/spi.h>
+#include <linux/uaccess.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+
+#define MC13783_MAX_REG_NUM	0x3f
+#define MC13783_FRAME_MASK	0x00ffffff
+#define MC13783_MAX_REG_NUM	0x3f
+#define MC13783_REG_NUM_SHIFT	0x19
+#define MC13783_WRITE_BIT_SHIFT	31
+
+static inline int spi_rw(struct spi_device *spi, u8 * buf, size_t len)
+{
+	struct spi_transfer t = {
+		.tx_buf = (const void *)buf,
+		.rx_buf = buf,
+		.len = len,
+		.cs_change = 0,
+		.delay_usecs = 0,
+	};
+	struct spi_message m;
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t, &m);
+	if (spi_sync(spi, &m) != 0 || m.status != 0)
+		return -EINVAL;
+	return len - m.actual_length;
+}
+
+static int mc13783_read(struct mc13783 *mc13783, int reg_num, u32 *reg_val)
+{
+	unsigned int frame = 0;
+	int ret = 0;
+
+	if (reg_num > MC13783_MAX_REG_NUM)
+		return -EINVAL;
+
+	frame |= reg_num << MC13783_REG_NUM_SHIFT;
+
+	ret = spi_rw(mc13783->spi_device, (u8 *)&frame, 4);
+
+	*reg_val = frame & MC13783_FRAME_MASK;
+
+	return ret;
+}
+
+static int mc13783_write(struct mc13783 *mc13783, int reg_num, u32 reg_val)
+{
+	unsigned int frame = 0;
+
+	if (reg_num > MC13783_MAX_REG_NUM)
+		return -EINVAL;
+
+	frame |= (1 << MC13783_WRITE_BIT_SHIFT);
+	frame |= reg_num << MC13783_REG_NUM_SHIFT;
+	frame |= reg_val & MC13783_FRAME_MASK;
+
+	return spi_rw(mc13783->spi_device, (u8 *)&frame, 4);
+}
+
+int mc13783_reg_read(struct mc13783 *mc13783, int reg_num, u32 *reg_val)
+{
+	int ret;
+
+	mutex_lock(&mc13783->io_lock);
+	ret = mc13783_read(mc13783, reg_num, reg_val);
+	mutex_unlock(&mc13783->io_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mc13783_reg_read);
+
+int mc13783_reg_write(struct mc13783 *mc13783, int reg_num, u32 reg_val)
+{
+	int ret;
+
+	mutex_lock(&mc13783->io_lock);
+	ret = mc13783_write(mc13783, reg_num, reg_val);
+	mutex_unlock(&mc13783->io_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mc13783_reg_write);
+
+/**
+ * mc13783_set_bits - Bitmask write
+ *
+ * @mc13783: Pointer to mc13783 control structure
+ * @reg:    Register to access
+ * @mask:   Mask of bits to change
+ * @val:    Value to set for masked bits
+ */
+int mc13783_set_bits(struct mc13783 *mc13783, int reg, u32 mask, u32 val)
+{
+	u32 tmp;
+	int ret;
+
+	mutex_lock(&mc13783->io_lock);
+
+	ret = mc13783_read(mc13783, reg, &tmp);
+	tmp = (tmp & ~mask) | val;
+	if (ret == 0)
+		ret = mc13783_write(mc13783, reg, tmp);
+
+	mutex_unlock(&mc13783->io_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mc13783_set_bits);
+
+int mc13783_register_irq(struct mc13783 *mc13783, int irq,
+		void (*handler) (int, void *), void *data)
+{
+	if (irq < 0 || irq > MC13783_NUM_IRQ || !handler)
+		return -EINVAL;
+
+	if (WARN_ON(mc13783->irq_handler[irq].handler))
+		return -EBUSY;
+
+	mutex_lock(&mc13783->io_lock);
+	mc13783->irq_handler[irq].handler = handler;
+	mc13783->irq_handler[irq].data = data;
+	mutex_unlock(&mc13783->io_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mc13783_register_irq);
+
+int mc13783_free_irq(struct mc13783 *mc13783, int irq)
+{
+	if (irq < 0 || irq > MC13783_NUM_IRQ)
+		return -EINVAL;
+
+	mutex_lock(&mc13783->io_lock);
+	mc13783->irq_handler[irq].handler = NULL;
+	mutex_unlock(&mc13783->io_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mc13783_free_irq);
+
+static void mc13783_irq_work(struct work_struct *work)
+{
+	struct mc13783 *mc13783 = container_of(work, struct mc13783, work);
+	int i;
+	unsigned int adc_sts;
+
+	/* check if the adc has finished any completion */
+	mc13783_reg_read(mc13783, MC13783_REG_INTERRUPT_STATUS_0, &adc_sts);
+	mc13783_reg_write(mc13783, MC13783_REG_INTERRUPT_STATUS_0,
+			adc_sts & MC13783_INT_STAT_ADCDONEI);
+
+	if (adc_sts & MC13783_INT_STAT_ADCDONEI)
+		complete_all(&mc13783->adc_done);
+
+	for (i = 0; i < MC13783_NUM_IRQ; i++)
+		if (mc13783->irq_handler[i].handler)
+			mc13783->irq_handler[i].handler(i,
+					mc13783->irq_handler[i].data);
+	enable_irq(mc13783->irq);
+}
+
+static irqreturn_t mc13783_interrupt(int irq, void *dev_id)
+{
+	struct mc13783 *mc13783 = dev_id;
+
+	disable_irq_nosync(irq);
+
+	schedule_work(&mc13783->work);
+	return IRQ_HANDLED;
+}
+
+/* set adc to ts interrupt mode, which generates touchscreen wakeup interrupt */
+static inline void mc13783_adc_set_ts_irq_mode(struct mc13783 *mc13783)
+{
+	unsigned int reg_adc0, reg_adc1;
+
+	reg_adc0 = MC13783_ADC0_ADREFEN | MC13783_ADC0_ADREFMODE
+			| MC13783_ADC0_TSMOD0;
+	reg_adc1 = MC13783_ADC1_ADEN | MC13783_ADC1_ADTRIGIGN;
+
+	mc13783_reg_write(mc13783, MC13783_REG_ADC_0, reg_adc0);
+	mc13783_reg_write(mc13783, MC13783_REG_ADC_1, reg_adc1);
+}
+
+int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
+		unsigned int channel, unsigned int *sample)
+{
+	unsigned int reg_adc0, reg_adc1;
+	int i;
+
+	mutex_lock(&mc13783->adc_conv_lock);
+
+	/* set up auto incrementing anyway to make quick read */
+	reg_adc0 =  MC13783_ADC0_ADINC1 | MC13783_ADC0_ADINC2;
+	/* enable the adc, ignore external triggering and set ASC to trigger
+	 * conversion */
+	reg_adc1 =  MC13783_ADC1_ADEN | MC13783_ADC1_ADTRIGIGN
+		| MC13783_ADC1_ASC;
+
+	/* setup channel number */
+	if (channel > 7)
+		reg_adc1 |= MC13783_ADC1_ADSEL;
+
+	switch (mode) {
+	case MC13783_ADC_MODE_TS:
+		/* enables touch screen reference mode and set touchscreen mode
+		 * to position mode */
+		reg_adc0 |= MC13783_ADC0_ADREFEN | MC13783_ADC0_ADREFMODE
+			| MC13783_ADC0_TSMOD0 | MC13783_ADC0_TSMOD1;
+		reg_adc1 |= 4 << MC13783_ADC1_CHAN1_SHIFT;
+		break;
+	case MC13783_ADC_MODE_SINGLE_CHAN:
+		reg_adc1 |= (channel & 0x7) << MC13783_ADC1_CHAN0_SHIFT;
+		reg_adc1 |= MC13783_ADC1_RAND;
+		break;
+	case MC13783_ADC_MODE_MULT_CHAN:
+		reg_adc1 |= 4 << MC13783_ADC1_CHAN1_SHIFT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mc13783_reg_write(mc13783, MC13783_REG_ADC_0, reg_adc0);
+	mc13783_reg_write(mc13783, MC13783_REG_ADC_1, reg_adc1);
+
+	wait_for_completion_interruptible(&mc13783->adc_done);
+
+	for (i = 0; i < 4; i++)
+		mc13783_reg_read(mc13783, MC13783_REG_ADC_2, &sample[i]);
+
+	if (mc13783->ts_active)
+		mc13783_adc_set_ts_irq_mode(mc13783);
+
+	mutex_unlock(&mc13783->adc_conv_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mc13783_adc_do_conversion);
+
+void mc13783_adc_set_ts_status(struct mc13783 *mc13783, unsigned int status)
+{
+	mc13783->ts_active = status;
+}
+EXPORT_SYMBOL_GPL(mc13783_adc_set_ts_status);
+
+static int mc13783_check_revision(struct mc13783 *mc13783)
+{
+	u32 rev_id, rev1, rev2, finid, icid;
+
+	mc13783_read(mc13783, MC13783_REG_REVISION, &rev_id);
+
+	rev1 = (rev_id & 0x018) >> 3;
+	rev2 = (rev_id & 0x007);
+	icid = (rev_id & 0x01C0) >> 6;
+	finid = (rev_id & 0x01E00) >> 9;
+
+	/* Ver 0.2 is actually 3.2a.  Report as 3.2 */
+	if ((rev1 == 0) && (rev2 == 2))
+		rev1 = 3;
+
+	if (rev1 == 0 || icid != 2) {
+		dev_err(mc13783->dev, "No MC13783 detected.\n");
+		return -ENODEV;
+	}
+
+	mc13783->revision = ((rev1 * 10) + rev2);
+	dev_info(mc13783->dev, "MC13783 Rev %d.%d FinVer %x detected\n", rev1,
+	       rev2, finid);
+
+	return 0;
+}
+
+/*
+ * Register a client device.  This is non-fatal since there is no need to
+ * fail the entire device init due to a single platform device failing.
+ */
+static void mc13783_client_dev_register(struct mc13783 *mc13783,
+				       const char *name,
+				       struct platform_device **pdev)
+{
+	int ret;
+
+	*pdev = platform_device_alloc(name, -1);
+	if (pdev == NULL) {
+		dev_err(mc13783->dev, "Failed to allocate %s\n", name);
+		return;
+	}
+
+	(*pdev)->dev.parent = mc13783->dev;
+	(*pdev)->dev.platform_data = mc13783;
+	ret = platform_device_add(*pdev);
+	if (ret) {
+		dev_err(mc13783->dev, "Failed to register %s: %d\n", name, ret);
+		platform_device_put(*pdev);
+		*pdev = NULL;
+	}
+}
+
+static int __devinit mc13783_probe(struct spi_device *spi)
+{
+	struct mc13783 *mc13783;
+	struct mc13783_platform_data *pdata = spi->dev.platform_data;
+	int ret;
+
+	mc13783 = kzalloc(sizeof(struct mc13783), GFP_KERNEL);
+	if (!mc13783)
+		return -ENOMEM;
+
+	dev_set_drvdata(&spi->dev, mc13783);
+	spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
+	spi->bits_per_word = 32;
+	spi_setup(spi);
+
+	mc13783->spi_device = spi;
+	mc13783->dev = &spi->dev;
+	mc13783->irq = spi->irq;
+
+	INIT_WORK(&mc13783->work, mc13783_irq_work);
+	mutex_init(&mc13783->io_lock);
+	mutex_init(&mc13783->adc_conv_lock);
+	init_completion(&mc13783->adc_done);
+
+	if (pdata) {
+		mc13783->flags = pdata->flags;
+		mc13783->regulators = pdata->regulators;
+		mc13783->num_regulators = pdata->num_regulators;
+	}
+
+	if (mc13783_check_revision(mc13783)) {
+		ret = -ENODEV;
+		goto err_out;
+	}
+
+	/* clear and mask all interrupts */
+	mc13783_reg_write(mc13783, MC13783_REG_INTERRUPT_STATUS_0, 0x00ffffff);
+	mc13783_reg_write(mc13783, MC13783_REG_INTERRUPT_MASK_0, 0x00ffffff);
+	mc13783_reg_write(mc13783, MC13783_REG_INTERRUPT_STATUS_1, 0x00ffffff);
+	mc13783_reg_write(mc13783, MC13783_REG_INTERRUPT_MASK_1, 0x00ffffff);
+
+	/* unmask adcdone interrupts */
+	mc13783_set_bits(mc13783, MC13783_REG_INTERRUPT_MASK_0,
+			MC13783_INT_MASK_ADCDONEM, 0);
+
+	ret = request_irq(mc13783->irq, mc13783_interrupt,
+			IRQF_DISABLED | IRQF_TRIGGER_HIGH, "mc13783",
+			mc13783);
+	if (ret)
+		goto err_out;
+
+	mc13783_client_dev_register(mc13783, "mc13783-codec",
+				       &mc13783->codec);
+	mc13783_client_dev_register(mc13783, "mc13783-adc",
+				       &mc13783->adc);
+	mc13783_client_dev_register(mc13783, "mc13783-rtc",
+				       &mc13783->rtc);
+	mc13783_client_dev_register(mc13783, "mc13783-regulator",
+				       &mc13783->regulator);
+	if (mc13783->flags & MC13783_USE_TOUCHSCREEN)
+		mc13783_client_dev_register(mc13783, "mc13783-ts",
+				       &mc13783->ts);
+
+	return 0;
+
+err_out:
+	kfree(mc13783);
+	return ret;
+}
+
+static int __devexit mc13783_remove(struct spi_device *spi)
+{
+	struct mc13783 *mc13783;
+
+	mc13783 = dev_get_drvdata(&spi->dev);
+
+	free_irq(mc13783->irq, mc13783);
+
+	platform_device_unregister(mc13783->ts);
+	platform_device_unregister(mc13783->rtc);
+	platform_device_unregister(mc13783->codec);
+	platform_device_unregister(mc13783->adc);
+
+	return 0;
+}
+
+static struct spi_driver pmic_driver = {
+	.driver = {
+		   .name = "mc13783",
+		   .bus = &spi_bus_type,
+		   .owner = THIS_MODULE,
+	},
+	.probe = mc13783_probe,
+	.remove = __devexit_p(mc13783_remove),
+};
+
+static int __init pmic_init(void)
+{
+	return spi_register_driver(&pmic_driver);
+}
+module_init(pmic_init);
+
+static void __exit pmic_exit(void)
+{
+	spi_unregister_driver(&pmic_driver);
+}
+module_exit(pmic_exit);
+
+MODULE_DESCRIPTION("Core/Protocol driver for Freescale MC13783 PMIC");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_LICENSE("GPL");
+
diff --git a/include/linux/mfd/mc13783-private.h b/include/linux/mfd/mc13783-private.h
new file mode 100644
index 0000000..d390bb5
--- /dev/null
+++ b/include/linux/mfd/mc13783-private.h
@@ -0,0 +1,402 @@ 
+/*
+ * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * Initial development of this code was funded by
+ * Phytec Messtechnik GmbH, http://www.phytec.de
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __LINUX_MFD_MC13783_PRIV_H
+#define __LINUX_MFD_MC13783_PRIV_H
+
+#include <linux/platform_device.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/workqueue.h>
+#include <linux/mutex.h>
+
+struct mc13783_irq {
+	void (*handler)(int, void *);
+	void *data;
+};
+
+#define MC13783_NUM_IRQ		2
+#define MC13783_IRQ_TS		0
+#define MC13783_IRQ_REGULATOR	1
+
+#define MC13783_ADC_MODE_TS		1
+#define MC13783_ADC_MODE_SINGLE_CHAN	2
+#define MC13783_ADC_MODE_MULT_CHAN	3
+
+struct mc13783 {
+	int revision;
+	struct device *dev;
+	struct spi_device *spi_device;
+
+	int (*read_dev)(void *data, char reg, int count, u32 *dst);
+	int (*write_dev)(void *data, char reg, int count, const u32 *src);
+
+	struct mutex io_lock;
+	void *io_data;
+	int irq;
+	unsigned int flags;
+
+	struct platform_device *codec;
+	struct platform_device *ts;
+	struct platform_device *rtc;
+	struct platform_device *adc;
+	struct platform_device *regulator;
+
+	struct mc13783_irq irq_handler[MC13783_NUM_IRQ];
+	struct work_struct work;
+	struct completion adc_done;
+	unsigned int ts_active;
+	struct mutex adc_conv_lock;
+
+	struct mc13783_regulator_init_data *regulators;
+	int num_regulators;
+};
+
+int mc13783_reg_read(struct mc13783 *, int reg_num, u32 *);
+int mc13783_reg_write(struct mc13783 *, int, u32);
+int mc13783_set_bits(struct mc13783 *, int, u32, u32);
+int mc13783_free_irq(struct mc13783 *mc13783, int irq);
+int mc13783_register_irq(struct mc13783 *mc13783, int irq,
+		void (*handler) (int, void *), void *data);
+
+#define MC13783_REG_INTERRUPT_STATUS_0		 0
+#define MC13783_REG_INTERRUPT_MASK_0		 1
+#define MC13783_REG_INTERRUPT_SENSE_0		 2
+#define MC13783_REG_INTERRUPT_STATUS_1		 3
+#define MC13783_REG_INTERRUPT_MASK_1		 4
+#define MC13783_REG_INTERRUPT_SENSE_1		 5
+#define MC13783_REG_POWER_UP_MODE_SENSE		 6
+#define MC13783_REG_REVISION			 7
+#define MC13783_REG_SEMAPHORE			 8
+#define MC13783_REG_ARBITRATION_PERIPHERAL_AUDIO 9
+#define MC13783_REG_ARBITRATION_SWITCHERS	10
+#define MC13783_REG_ARBITRATION_REGULATORS_0	11
+#define MC13783_REG_ARBITRATION_REGULATORS_1	12
+#define MC13783_REG_POWER_CONTROL_0		13
+#define MC13783_REG_POWER_CONTROL_1		14
+#define MC13783_REG_POWER_CONTROL_2		15
+#define MC13783_REG_REGEN_ASSIGNMENT		16
+#define MC13783_REG_CONTROL_SPARE		17
+#define MC13783_REG_MEMORY_A			18
+#define MC13783_REG_MEMORY_B			19
+#define MC13783_REG_RTC_TIME			20
+#define MC13783_REG_RTC_ALARM			21
+#define MC13783_REG_RTC_DAY			22
+#define MC13783_REG_RTC_DAY_ALARM		23
+#define MC13783_REG_SWITCHERS_0			24
+#define MC13783_REG_SWITCHERS_1			25
+#define MC13783_REG_SWITCHERS_2			26
+#define MC13783_REG_SWITCHERS_3			27
+#define MC13783_REG_SWITCHERS_4			28
+#define MC13783_REG_SWITCHERS_5			29
+#define MC13783_REG_REGULATOR_SETTING_0		30
+#define MC13783_REG_REGULATOR_SETTING_1		31
+#define MC13783_REG_REGULATOR_MODE_0		32
+#define MC13783_REG_REGULATOR_MODE_1		33
+#define MC13783_REG_POWER_MISCELLANEOUS		34
+#define MC13783_REG_POWER_SPARE			35
+#define MC13783_REG_AUDIO_RX_0			36
+#define MC13783_REG_AUDIO_RX_1			37
+#define MC13783_REG_AUDIO_TX			38
+#define MC13783_REG_AUDIO_SSI_NETWORK		39
+#define MC13783_REG_AUDIO_CODEC			40
+#define MC13783_REG_AUDIO_STEREO_DAC		41
+#define MC13783_REG_AUDIO_SPARE			42
+#define MC13783_REG_ADC_0			43
+#define MC13783_REG_ADC_1			44
+#define MC13783_REG_ADC_2			45
+#define MC13783_REG_ADC_3			46
+#define MC13783_REG_ADC_4			47
+#define MC13783_REG_CHARGER			48
+#define MC13783_REG_USB				49
+#define MC13783_REG_CHARGE_USB_SPARE		50
+#define MC13783_REG_LED_CONTROL_0		51
+#define MC13783_REG_LED_CONTROL_1		52
+#define MC13783_REG_LED_CONTROL_2		53
+#define MC13783_REG_LED_CONTROL_3		54
+#define MC13783_REG_LED_CONTROL_4		55
+#define MC13783_REG_LED_CONTROL_5		56
+#define MC13783_REG_SPARE			57
+#define MC13783_REG_TRIM_0			58
+#define MC13783_REG_TRIM_1			59
+#define MC13783_REG_TEST_0			60
+#define MC13783_REG_TEST_1			61
+#define MC13783_REG_TEST_2			62
+#define MC13783_REG_TEST_3			63
+#define MC13783_REG_NB				64
+
+
+/*
+ * Interrupt Status
+ */
+#define MC13783_INT_STAT_ADCDONEI	(1 << 0)
+#define MC13783_INT_STAT_ADCBISDONEI	(1 << 1)
+#define MC13783_INT_STAT_TSI		(1 << 2)
+#define MC13783_INT_STAT_WHIGHI		(1 << 3)
+#define MC13783_INT_STAT_WLOWI		(1 << 4)
+#define MC13783_INT_STAT_CHGDETI	(1 << 6)
+#define MC13783_INT_STAT_CHGOVI		(1 << 7)
+#define MC13783_INT_STAT_CHGREVI	(1 << 8)
+#define MC13783_INT_STAT_CHGSHORTI	(1 << 9)
+#define MC13783_INT_STAT_CCCVI		(1 << 10)
+#define MC13783_INT_STAT_CHGCURRI	(1 << 11)
+#define MC13783_INT_STAT_BPONI		(1 << 12)
+#define MC13783_INT_STAT_LOBATLI	(1 << 13)
+#define MC13783_INT_STAT_LOBATHI	(1 << 14)
+#define MC13783_INT_STAT_UDPI		(1 << 15)
+#define MC13783_INT_STAT_USBI		(1 << 16)
+#define MC13783_INT_STAT_IDI		(1 << 19)
+#define MC13783_INT_STAT_Unused		(1 << 20)
+#define MC13783_INT_STAT_SE1I		(1 << 21)
+#define MC13783_INT_STAT_CKDETI		(1 << 22)
+#define MC13783_INT_STAT_UDMI		(1 << 23)
+
+/*
+ * Interrupt Mask
+ */
+#define MC13783_INT_MASK_ADCDONEM	(1 << 0)
+#define MC13783_INT_MASK_ADCBISDONEM	(1 << 1)
+#define MC13783_INT_MASK_TSM		(1 << 2)
+#define MC13783_INT_MASK_WHIGHM		(1 << 3)
+#define MC13783_INT_MASK_WLOWM		(1 << 4)
+#define MC13783_INT_MASK_CHGDETM	(1 << 6)
+#define MC13783_INT_MASK_CHGOVM		(1 << 7)
+#define MC13783_INT_MASK_CHGREVM	(1 << 8)
+#define MC13783_INT_MASK_CHGSHORTM	(1 << 9)
+#define MC13783_INT_MASK_CCCVM		(1 << 10)
+#define MC13783_INT_MASK_CHGCURRM	(1 << 11)
+#define MC13783_INT_MASK_BPONM		(1 << 12)
+#define MC13783_INT_MASK_LOBATLM	(1 << 13)
+#define MC13783_INT_MASK_LOBATHM	(1 << 14)
+#define MC13783_INT_MASK_UDPM		(1 << 15)
+#define MC13783_INT_MASK_USBM		(1 << 16)
+#define MC13783_INT_MASK_IDM		(1 << 19)
+#define MC13783_INT_MASK_SE1M		(1 << 21)
+#define MC13783_INT_MASK_CKDETM		(1 << 22)
+
+/*
+ * Reg Regulator Mode 0
+ */
+#define MC13783_REGCTRL_VAUDIO_EN	(1 << 0)
+#define MC13783_REGCTRL_VAUDIO_STBY	(1 << 1)
+#define MC13783_REGCTRL_VAUDIO_MODE	(1 << 2)
+#define MC13783_REGCTRL_VIOHI_EN	(1 << 3)
+#define MC13783_REGCTRL_VIOHI_STBY	(1 << 4)
+#define MC13783_REGCTRL_VIOHI_MODE	(1 << 5)
+#define MC13783_REGCTRL_VIOLO_EN	(1 << 6)
+#define MC13783_REGCTRL_VIOLO_STBY 	(1 << 7)
+#define MC13783_REGCTRL_VIOLO_MODE	(1 << 8)
+#define MC13783_REGCTRL_VDIG_EN		(1 << 9)
+#define MC13783_REGCTRL_VDIG_STBY	(1 << 10)
+#define MC13783_REGCTRL_VDIG_MODE	(1 << 11)
+#define MC13783_REGCTRL_VGEN_EN		(1 << 12)
+#define MC13783_REGCTRL_VGEN_STBY	(1 << 13)
+#define MC13783_REGCTRL_VGEN_MODE	(1 << 14)
+#define MC13783_REGCTRL_VRFDIG_EN	(1 << 15)
+#define MC13783_REGCTRL_VRFDIG_STBY	(1 << 16)
+#define MC13783_REGCTRL_VRFDIG_MODE	(1 << 17)
+#define MC13783_REGCTRL_VRFREF_EN	(1 << 18)
+#define MC13783_REGCTRL_VRFREF_STBY	(1 << 19)
+#define MC13783_REGCTRL_VRFREF_MODE	(1 << 20)
+#define MC13783_REGCTRL_VRFCP_EN	(1 << 21)
+#define MC13783_REGCTRL_VRFCP_STBY	(1 << 22)
+#define MC13783_REGCTRL_VRFCP_MODE	(1 << 23)
+
+/*
+ * Reg Regulator Mode 1
+ */
+#define MC13783_REGCTRL_VSIM_EN		(1 << 0)
+#define MC13783_REGCTRL_VSIM_STBY	(1 << 1)
+#define MC13783_REGCTRL_VSIM_MODE	(1 << 2)
+#define MC13783_REGCTRL_VESIM_EN	(1 << 3)
+#define MC13783_REGCTRL_VESIM_STBY	(1 << 4)
+#define MC13783_REGCTRL_VESIM_MODE	(1 << 5)
+#define MC13783_REGCTRL_VCAM_EN		(1 << 6)
+#define MC13783_REGCTRL_VCAM_STBY	(1 << 7)
+#define MC13783_REGCTRL_VCAM_MODE	(1 << 8)
+#define	MC13783_REGCTRL_VRFBG_EN	(1 << 9)
+#define MC13783_REGCTRL_VRFBG_STBY	(1 << 10)
+#define MC13783_REGCTRL_VVIB_EN		(1 << 11)
+#define MC13783_REGCTRL_VRF1_EN		(1 << 12)
+#define MC13783_REGCTRL_VRF1_STBY	(1 << 13)
+#define MC13783_REGCTRL_VRF1_MODE	(1 << 14)
+#define MC13783_REGCTRL_VRF2_EN		(1 << 15)
+#define MC13783_REGCTRL_VRF2_STBY	(1 << 16)
+#define MC13783_REGCTRL_VRF2_MODE	(1 << 17)
+#define MC13783_REGCTRL_VMMC1_EN	(1 << 18)
+#define MC13783_REGCTRL_VMMC1_STBY	(1 << 19)
+#define MC13783_REGCTRL_VMMC1_MODE	(1 << 20)
+#define MC13783_REGCTRL_VMMC2_EN	(1 << 21)
+#define MC13783_REGCTRL_VMMC2_STBY	(1 << 22)
+#define MC13783_REGCTRL_VMMC2_MODE	(1 << 23)
+
+/*
+ * Reg Regulator Misc.
+ */
+#define MC13783_REGCTRL_GPO1_EN		(1 << 6)
+#define MC13783_REGCTRL_GPO2_EN		(1 << 8)
+#define MC13783_REGCTRL_GPO3_EN		(1 << 10)
+#define MC13783_REGCTRL_GPO4_EN		(1 << 12)
+#define MC13783_REGCTRL_VIBPINCTRL	(1 << 14)
+
+/*
+ * Reg Switcher 4
+ */
+#define MC13783_SWCTRL_SW1A_MODE	(1 << 0)
+#define MC13783_SWCTRL_SW1A_STBY_MODE	(1 << 2)
+#define MC13783_SWCTRL_SW1A_DVS_SPEED	(1 << 6)
+#define MC13783_SWCTRL_SW1A_PANIC_MODE	(1 << 8)
+#define MC13783_SWCTRL_SW1A_SOFTSTART	(1 << 9)
+#define MC13783_SWCTRL_SW1B_MODE	(1 << 10)
+#define MC13783_SWCTRL_SW1B_STBY_MODE	(1 << 12)
+#define MC13783_SWCTRL_SW1B_DVS_SPEED	(1 << 14)
+#define MC13783_SWCTRL_SW1B_PANIC_MODE	(1 << 16)
+#define MC13783_SWCTRL_SW1B_SOFTSTART	(1 << 17)
+#define MC13783_SWCTRL_PLL_EN		(1 << 18)
+#define MC13783_SWCTRL_PLL_FACTOR	(1 << 19)
+
+/*
+ * Reg Switcher 5
+ */
+#define MC13783_SWCTRL_SW2A_MODE	(1 << 0)
+#define MC13783_SWCTRL_SW2A_STBY_MODE	(1 << 2)
+#define MC13783_SWCTRL_SW2A_DVS_SPEED	(1 << 6)
+#define MC13783_SWCTRL_SW2A_PANIC_MODE	(1 << 8)
+#define MC13783_SWCTRL_SW2A_SOFTSTART	(1 << 9)
+#define MC13783_SWCTRL_SW2B_MODE	(1 << 10)
+#define MC13783_SWCTRL_SW2B_STBY_MODE	(1 << 12)
+#define MC13783_SWCTRL_SW2B_DVS_SPEED	(1 << 14)
+#define MC13783_SWCTRL_SW2B_PANIC_MODE	(1 << 16)
+#define MC13783_SWCTRL_SW2B_SOFTSTART	(1 << 17)
+#define MC13783_SWSET_SW3		(1 << 18)
+#define MC13783_SWCTRL_SW3_EN		(1 << 20)
+#define MC13783_SWCTRL_SW3_STBY		(1 << 21)
+#define MC13783_SWCTRL_SW3_MODE		(1 << 22)
+
+/*
+ * ADC/Touch
+ */
+#define MC13783_ADC0_LICELLCON		(1 << 0)
+#define MC13783_ADC0_CHRGICON		(1 << 1)
+#define MC13783_ADC0_BATICON		(1 << 2)
+#define MC13783_ADC0_RTHEN 		(1 << 3)
+#define MC13783_ADC0_DTHEN		(1 << 4)
+#define MC13783_ADC0_UIDEN		(1 << 5)
+#define MC13783_ADC0_ADOUTEN 		(1 << 6)
+#define MC13783_ADC0_ADOUTPER		(1 << 7)
+#define MC13783_ADC0_ADREFEN		(1 << 10)
+#define MC13783_ADC0_ADREFMODE		(1 << 11)
+#define MC13783_ADC0_TSMOD0		(1 << 12)
+#define MC13783_ADC0_TSMOD1		(1 << 13)
+#define MC13783_ADC0_TSMOD2		(1 << 14)
+#define MC13783_ADC0_CHRGRAWDIV		(1 << 15)
+#define MC13783_ADC0_ADINC1		(1 << 16)
+#define MC13783_ADC0_ADINC2		(1 << 17)
+#define MC13783_ADC0_WCOMP		(1 << 18)
+#define MC13783_ADC0_ADCBIS0		(1 << 23)
+
+#define MC13783_ADC1_ADEN		(1 << 0)
+#define MC13783_ADC1_RAND		(1 << 1)
+#define MC13783_ADC1_ADSEL		(1 << 3)
+#define MC13783_ADC1_TRIGMASK		(1 << 4)
+#define MC13783_ADC1_ADA10		(1 << 5)
+#define MC13783_ADC1_ADA11		(1 << 6)
+#define MC13783_ADC1_ADA12		(1 << 7)
+#define MC13783_ADC1_ADA20		(1 << 8)
+#define MC13783_ADC1_ADA21		(1 << 9)
+#define MC13783_ADC1_ADA22		(1 << 10)
+#define MC13783_ADC1_ATO0		(1 << 11)
+#define MC13783_ADC1_ATO1		(1 << 12)
+#define MC13783_ADC1_ATO2		(1 << 13)
+#define MC13783_ADC1_ATO3		(1 << 14)
+#define MC13783_ADC1_ATO4		(1 << 15)
+#define MC13783_ADC1_ATO5		(1 << 16)
+#define MC13783_ADC1_ATO6		(1 << 17)
+#define MC13783_ADC1_ATO7		(1 << 18)
+#define MC13783_ADC1_ATOX		(1 << 19)
+#define MC13783_ADC1_ASC		(1 << 20)
+#define MC13783_ADC1_ADTRIGIGN		(1 << 21)
+#define MC13783_ADC1_ADONESHOT		(1 << 22)
+#define MC13783_ADC1_ADCBIS1		(1 << 23)
+
+#define MC13783_ADC1_CHAN0_SHIFT	5
+#define MC13783_ADC1_CHAN1_SHIFT	8
+
+#define MC13783_ADC2_ADD10		(1 << 2)
+#define MC13783_ADC2_ADD11		(1 << 3)
+#define MC13783_ADC2_ADD12		(1 << 4)
+#define MC13783_ADC2_ADD13		(1 << 5)
+#define MC13783_ADC2_ADD14		(1 << 6)
+#define MC13783_ADC2_ADD15		(1 << 7)
+#define MC13783_ADC2_ADD16		(1 << 8)
+#define MC13783_ADC2_ADD17		(1 << 9)
+#define MC13783_ADC2_ADD18		(1 << 10)
+#define MC13783_ADC2_ADD19		(1 << 11)
+#define MC13783_ADC2_ADD20		(1 << 14)
+#define MC13783_ADC2_ADD21		(1 << 15)
+#define MC13783_ADC2_ADD22		(1 << 16)
+#define MC13783_ADC2_ADD23		(1 << 17)
+#define MC13783_ADC2_ADD24		(1 << 18)
+#define MC13783_ADC2_ADD25		(1 << 19)
+#define MC13783_ADC2_ADD26		(1 << 20)
+#define MC13783_ADC2_ADD27		(1 << 21)
+#define MC13783_ADC2_ADD28		(1 << 22)
+#define MC13783_ADC2_ADD29		(1 << 23)
+
+#define MC13783_ADC3_WHIGH0		(1 << 0)
+#define MC13783_ADC3_WHIGH1		(1 << 1)
+#define MC13783_ADC3_WHIGH2		(1 << 2)
+#define MC13783_ADC3_WHIGH3		(1 << 3)
+#define MC13783_ADC3_WHIGH4		(1 << 4)
+#define MC13783_ADC3_WHIGH5		(1 << 5)
+#define MC13783_ADC3_ICID0		(1 << 6)
+#define MC13783_ADC3_ICID1		(1 << 7)
+#define MC13783_ADC3_ICID2		(1 << 8)
+#define MC13783_ADC3_WLOW0		(1 << 9)
+#define MC13783_ADC3_WLOW1		(1 << 10)
+#define MC13783_ADC3_WLOW2		(1 << 11)
+#define MC13783_ADC3_WLOW3		(1 << 12)
+#define MC13783_ADC3_WLOW4		(1 << 13)
+#define MC13783_ADC3_WLOW5		(1 << 14)
+#define MC13783_ADC3_ADCBIS2		(1 << 23)
+
+#define MC13783_ADC4_ADDBIS10		(1 << 2)
+#define MC13783_ADC4_ADDBIS11		(1 << 3)
+#define MC13783_ADC4_ADDBIS12		(1 << 4)
+#define MC13783_ADC4_ADDBIS13		(1 << 5)
+#define MC13783_ADC4_ADDBIS14		(1 << 6)
+#define MC13783_ADC4_ADDBIS15		(1 << 7)
+#define MC13783_ADC4_ADDBIS16		(1 << 8)
+#define MC13783_ADC4_ADDBIS17		(1 << 9)
+#define MC13783_ADC4_ADDBIS18		(1 << 10)
+#define MC13783_ADC4_ADDBIS19		(1 << 11)
+#define MC13783_ADC4_ADDBIS20		(1 << 14)
+#define MC13783_ADC4_ADDBIS21		(1 << 15)
+#define MC13783_ADC4_ADDBIS22		(1 << 16)
+#define MC13783_ADC4_ADDBIS23		(1 << 17)
+#define MC13783_ADC4_ADDBIS24		(1 << 18)
+#define MC13783_ADC4_ADDBIS25		(1 << 19)
+#define MC13783_ADC4_ADDBIS26		(1 << 20)
+#define MC13783_ADC4_ADDBIS27		(1 << 21)
+#define MC13783_ADC4_ADDBIS28		(1 << 22)
+#define MC13783_ADC4_ADDBIS29		(1 << 23)
+
+#endif /* __LINUX_MFD_MC13783_PRIV_H */
+
diff --git a/include/linux/mfd/mc13783.h b/include/linux/mfd/mc13783.h
new file mode 100644
index 0000000..a2a7452
--- /dev/null
+++ b/include/linux/mfd/mc13783.h
@@ -0,0 +1,79 @@ 
+/*
+ * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * Initial development of this code was funded by
+ * Phytec Messtechnik GmbH, http://www.phytec.de
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __INCLUDE_LINUX_MFD_MC13783_H
+#define __INCLUDE_LINUX_MFD_MC13783_H
+
+struct mc13783;
+struct regulator_init_data;
+
+#define MC13783_USE_TOUCHSCREEN (1 << 0)
+
+struct mc13783_regulator_init_data {
+	int id;
+	struct regulator_init_data *init_data;
+};
+
+struct mc13783_platform_data {
+	struct mc13783_regulator_init_data *regulators;
+	int num_regulators;
+	unsigned int flags;
+};
+
+int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
+		unsigned int channel, unsigned int *sample);
+
+void mc13783_adc_set_ts_status(struct mc13783 *mc13783, unsigned int status);
+
+#define	SW_SW1A		0
+#define	SW_SW1B		1
+#define	SW_SW2A		2
+#define	SW_SW2B		3
+#define	SW_SW3		4
+#define	SW_PLL		5
+#define	REGU_VAUDIO	6
+#define	REGU_VIOHI	7
+#define	REGU_VIOLO	8
+#define	REGU_VDIG	9
+#define	REGU_VGEN	10
+#define	REGU_VRFDIG	11
+#define	REGU_VRFREF	12
+#define	REGU_VRFCP	13
+#define	REGU_VSIM	14
+#define	REGU_VESIM	15
+#define	REGU_VCAM	16
+#define	REGU_VRFBG	17
+#define	REGU_VVIB	18
+#define	REGU_VRF1	19
+#define	REGU_VRF2	20
+#define	REGU_VMMC1	21
+#define	REGU_VMMC2	22
+#define	REGU_GPO1	23
+#define	REGU_GPO2	24
+#define	REGU_GPO3	25
+#define	REGU_GPO4	26
+#define	REGU_V1		27
+#define	REGU_V2		28
+#define	REGU_V3		29
+#define	REGU_V4		30
+
+#endif /* __INCLUDE_LINUX_MFD_MC13783_H */
+