+++ /dev/null
---- /dev/null
-+++ b/drivers/cbus/cbus.c
-@@ -0,0 +1,335 @@
-+/*
-+ * drivers/cbus/cbus.c
-+ *
-+ * Support functions for CBUS serial protocol
-+ *
-+ * Copyright (C) 2004-2010 Nokia Corporation
-+ * Contact: Felipe Balbi <felipe.balbi@nokia.com>
-+ *
-+ * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
-+ * David Weinehall <david.weinehall@nokia.com>, and
-+ * Mikko Ylinen <mikko.k.ylinen@nokia.com>
-+ *
-+ * Several updates and cleanups by Felipe Balbi <felipe.balbi@nokia.com>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#include <linux/device.h>
-+#include <linux/init.h>
-+#include <linux/kernel.h>
-+#include <linux/export.h>
-+#include <linux/module.h>
-+#include <linux/slab.h>
-+#include <linux/spinlock.h>
-+#include <linux/gpio.h>
-+#include <linux/platform_device.h>
-+#include <linux/platform_data/cbus.h>
-+
-+#include "cbus.h"
-+
-+#define CBUS_XFER_READ 1
-+#define CBUS_XFER_WRITE 0
-+
-+struct cbus_host {
-+ /* host lock */
-+ spinlock_t lock;
-+
-+ struct device *dev;
-+
-+ int clk_gpio;
-+ int dat_gpio;
-+ int sel_gpio;
-+};
-+
-+/**
-+ * cbus_send_bit - sends one bit over the bus
-+ * @host: the host we're using
-+ * @bit: one bit of information to send
-+ * @input: whether to set data pin as input after sending
-+ */
-+static int cbus_send_bit(struct cbus_host *host, unsigned bit,
-+ unsigned input)
-+{
-+ int ret = 0;
-+
-+ gpio_set_value(host->dat_gpio, bit ? 1 : 0);
-+ gpio_set_value(host->clk_gpio, 1);
-+
-+ /* The data bit is read on the rising edge of CLK */
-+ if (input)
-+ ret = gpio_direction_input(host->dat_gpio);
-+
-+ gpio_set_value(host->clk_gpio, 0);
-+
-+ return ret;
-+}
-+
-+/**
-+ * cbus_send_data - sends @len amount of data over the bus
-+ * @host: the host we're using
-+ * @data: the data to send
-+ * @len: size of the transfer
-+ * @input: whether to set data pin as input after sending
-+ */
-+static int cbus_send_data(struct cbus_host *host, unsigned data, unsigned len,
-+ unsigned input)
-+{
-+ int ret = 0;
-+ int i;
-+
-+ for (i = len; i > 0; i--) {
-+ ret = cbus_send_bit(host, data & (1 << (i - 1)),
-+ input && (i == 1));
-+ if (ret < 0)
-+ goto out;
-+ }
-+
-+out:
-+ return ret;
-+}
-+
-+/**
-+ * cbus_receive_bit - receives one bit from the bus
-+ * @host: the host we're using
-+ */
-+static int cbus_receive_bit(struct cbus_host *host)
-+{
-+ int ret;
-+
-+ gpio_set_value(host->clk_gpio, 1);
-+ ret = gpio_get_value(host->dat_gpio);
-+ if (ret < 0)
-+ goto out;
-+ gpio_set_value(host->clk_gpio, 0);
-+
-+out:
-+ return ret;
-+}
-+
-+/**
-+ * cbus_receive_data - receives @len data from the bus
-+ * @host: the host we're using
-+ * @len: the length of data to receive
-+ */
-+static int cbus_receive_data(struct cbus_host *host, unsigned len)
-+{
-+ int ret = 0;
-+ int i;
-+
-+ for (i = 16; i > 0; i--) {
-+ int bit = cbus_receive_bit(host);
-+
-+ if (bit < 0)
-+ goto out;
-+
-+ if (bit)
-+ ret |= 1 << (i - 1);
-+ }
-+
-+out:
-+ return ret;
-+}
-+
-+/**
-+ * cbus_transfer - transfers data over the bus
-+ * @host: the host we're using
-+ * @rw: read/write flag
-+ * @dev: device address
-+ * @reg: register address
-+ * @data: if @rw == 0 data to send otherwise 0
-+ */
-+static int cbus_transfer(struct cbus_host *host, unsigned rw, unsigned dev,
-+ unsigned reg, unsigned data)
-+{
-+ unsigned long flags;
-+ int input = 0;
-+ int ret = 0;
-+
-+ /* We don't want interrupts disturbing our transfer */
-+ spin_lock_irqsave(&host->lock, flags);
-+
-+ /* Reset state and start of transfer, SEL stays down during transfer */
-+ gpio_set_value(host->sel_gpio, 0);
-+
-+ /* Set the DAT pin to output */
-+ gpio_direction_output(host->dat_gpio, 1);
-+
-+ /* Send the device address */
-+ ret = cbus_send_data(host, dev, 3, 0);
-+ if (ret < 0) {
-+ dev_dbg(host->dev, "failed sending device addr\n");
-+ goto out;
-+ }
-+
-+ /* Send the rw flag */
-+ ret = cbus_send_bit(host, rw, 0);
-+ if (ret < 0) {
-+ dev_dbg(host->dev, "failed sending read/write flag\n");
-+ goto out;
-+ }
-+
-+ /* Send the register address */
-+ if (rw)
-+ input = true;
-+
-+ ret = cbus_send_data(host, reg, 5, input);
-+ if (ret < 0) {
-+ dev_dbg(host->dev, "failed sending register addr\n");
-+ goto out;
-+ }
-+
-+ if (!rw) {
-+ ret = cbus_send_data(host, data, 16, 0);
-+ if (ret < 0) {
-+ dev_dbg(host->dev, "failed sending data\n");
-+ goto out;
-+ }
-+ } else {
-+ gpio_set_value(host->clk_gpio, 1);
-+
-+ ret = cbus_receive_data(host, 16);
-+ if (ret < 0) {
-+ dev_dbg(host->dev, "failed receiving data\n");
-+ goto out;
-+ }
-+ }
-+
-+ /* Indicate end of transfer, SEL goes up until next transfer */
-+ gpio_set_value(host->sel_gpio, 1);
-+ gpio_set_value(host->clk_gpio, 1);
-+ gpio_set_value(host->clk_gpio, 0);
-+
-+out:
-+ spin_unlock_irqrestore(&host->lock, flags);
-+
-+ return ret;
-+}
-+
-+/**
-+ * cbus_read_reg - reads a given register from the device
-+ * @child: the child device
-+ * @dev: device address
-+ * @reg: register address
-+ */
-+int cbus_read_reg(struct device *child, unsigned dev, unsigned reg)
-+{
-+ struct cbus_host *host = dev_get_drvdata(child->parent);
-+
-+ return cbus_transfer(host, CBUS_XFER_READ, dev, reg, 0);
-+}
-+EXPORT_SYMBOL(cbus_read_reg);
-+
-+/**
-+ * cbus_write_reg - writes to a given register of the device
-+ * @child: the child device
-+ * @dev: device address
-+ * @reg: register address
-+ * @val: data to be written to @reg
-+ */
-+int cbus_write_reg(struct device *child, unsigned dev, unsigned reg,
-+ unsigned val)
-+{
-+ struct cbus_host *host = dev_get_drvdata(child->parent);
-+
-+ return cbus_transfer(host, CBUS_XFER_WRITE, dev, reg, val);
-+}
-+EXPORT_SYMBOL(cbus_write_reg);
-+
-+static int __init cbus_bus_probe(struct platform_device *pdev)
-+{
-+ struct cbus_host *chost;
-+ struct cbus_host_platform_data *pdata = pdev->dev.platform_data;
-+ int ret;
-+
-+ chost = kzalloc(sizeof(*chost), GFP_KERNEL);
-+ if (chost == NULL)
-+ return -ENOMEM;
-+
-+ spin_lock_init(&chost->lock);
-+
-+ chost->clk_gpio = pdata->clk_gpio;
-+ chost->dat_gpio = pdata->dat_gpio;
-+ chost->sel_gpio = pdata->sel_gpio;
-+ chost->dev = &pdev->dev;
-+
-+ ret = gpio_request(chost->clk_gpio, "CBUS clk");
-+ if (ret < 0)
-+ goto exit1;
-+
-+ ret = gpio_request(chost->dat_gpio, "CBUS data");
-+ if (ret < 0)
-+ goto exit2;
-+
-+ ret = gpio_request(chost->sel_gpio, "CBUS sel");
-+ if (ret < 0)
-+ goto exit3;
-+
-+ gpio_direction_output(chost->clk_gpio, 0);
-+ gpio_direction_input(chost->dat_gpio);
-+ gpio_direction_output(chost->sel_gpio, 1);
-+
-+ gpio_set_value(chost->clk_gpio, 1);
-+ gpio_set_value(chost->clk_gpio, 0);
-+
-+ platform_set_drvdata(pdev, chost);
-+
-+ return 0;
-+exit3:
-+ gpio_free(chost->dat_gpio);
-+exit2:
-+ gpio_free(chost->clk_gpio);
-+exit1:
-+ kfree(chost);
-+
-+ return ret;
-+}
-+
-+static void __exit cbus_bus_remove(struct platform_device *pdev)
-+{
-+ struct cbus_host *chost = platform_get_drvdata(pdev);
-+
-+ gpio_free(chost->sel_gpio);
-+ gpio_free(chost->dat_gpio);
-+ gpio_free(chost->clk_gpio);
-+
-+ kfree(chost);
-+}
-+
-+static struct platform_driver cbus_driver = {
-+ .remove = __exit_p(cbus_bus_remove),
-+ .driver = {
-+ .name = "cbus",
-+ },
-+};
-+
-+static int __init cbus_bus_init(void)
-+{
-+ return platform_driver_probe(&cbus_driver, cbus_bus_probe);
-+}
-+subsys_initcall(cbus_bus_init);
-+
-+static void __exit cbus_bus_exit(void)
-+{
-+ platform_driver_unregister(&cbus_driver);
-+}
-+module_exit(cbus_bus_exit);
-+
-+MODULE_DESCRIPTION("CBUS serial protocol");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Juha Yrjölä");
-+MODULE_AUTHOR("David Weinehall");
-+MODULE_AUTHOR("Mikko Ylinen");
-+MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
-+
---- /dev/null
-+++ b/drivers/cbus/cbus.h
-@@ -0,0 +1,30 @@
-+/*
-+ * drivers/cbus/cbus.h
-+ *
-+ * Copyright (C) 2004, 2005 Nokia Corporation
-+ *
-+ * Written by Juha Yrjölä <juha.yrjola@nokia.com> and
-+ * David Weinehall <david.weinehall@nokia.com>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#ifndef __DRIVERS_CBUS_CBUS_H
-+#define __DRIVERS_CBUS_CBUS_H
-+
-+extern int cbus_read_reg(struct device *, unsigned dev, unsigned reg);
-+extern int cbus_write_reg(struct device *, unsigned dev, unsigned reg,
-+ unsigned val);
-+
-+#endif /* __DRIVERS_CBUS_CBUS_H */
---- /dev/null
-+++ b/drivers/cbus/Kconfig
-@@ -0,0 +1,86 @@
-+#
-+# CBUS device configuration
-+#
-+
-+menu "CBUS support"
-+
-+config CBUS
-+ bool "CBUS support on OMAP"
-+ ---help---
-+ CBUS is a proprietary serial protocol by Nokia. It is mainly
-+ used for accessing Energy Management auxiliary chips.
-+
-+ If you want CBUS support, you should say Y here.
-+
-+config CBUS_TAHVO
-+ depends on CBUS
-+ bool "Support for Tahvo"
-+ ---help---
-+ Tahvo is a mixed signal ASIC with some system features
-+
-+ If you want Tahvo support, you should say Y here.
-+
-+if CBUS_TAHVO
-+
-+config CBUS_TAHVO_USB
-+ depends on USB
-+ depends on ARCH_OMAP
-+ select USB_OTG_UTILS
-+ tristate "Support for Tahvo USB transceiver"
-+ ---help---
-+ If you want Tahvo support for USB transceiver, say Y or M here.
-+
-+config CBUS_TAHVO_USB_HOST_BY_DEFAULT
-+ depends on CBUS_TAHVO_USB && USB_OTG
-+ boolean "Device in USB host mode by default"
-+ ---help---
-+ Say Y here, if you want the device to enter USB host mode
-+ by default on bootup.
-+
-+endif # CBUS_TAHVO
-+
-+config CBUS_RETU
-+ depends on CBUS
-+ bool "Support for Retu"
-+ ---help---
-+ Retu is a mixed signal ASIC with some system features
-+
-+ If you want Retu support, you should say Y here.
-+
-+if CBUS_RETU
-+
-+config CBUS_RETU_POWERBUTTON
-+ depends on INPUT
-+ bool "Support for Retu power button"
-+ ---help---
-+ The power button on Nokia 770 is connected to the Retu ASIC.
-+
-+ If you want support for the Retu power button, you should say Y here.
-+
-+config CBUS_RETU_RTC
-+ depends on RTC_CLASS
-+ depends on ARCH_OMAP
-+ tristate "Support for Retu pseudo-RTC"
-+ ---help---
-+ Say Y here if you want support for the device that alleges to be an
-+ RTC in Retu. This will expose a sysfs interface for it.
-+
-+config CBUS_RETU_WDT
-+ depends on SYSFS && WATCHDOG
-+ depends on ARCH_OMAP
-+ tristate "Support for Retu watchdog timer"
-+ ---help---
-+ Say Y here if you want support for the watchdog in Retu. This will
-+ expose a sysfs interface to grok it.
-+
-+config CBUS_RETU_HEADSET
-+ depends on SYSFS
-+ tristate "Support for headset detection with Retu/Vilma"
-+ ---help---
-+ Say Y here if you want support detecting a headset that's connected
-+ to Retu/Vilma. Detection state and events are exposed through
-+ sysfs.
-+
-+endif # CBUS_RETU
-+
-+endmenu
---- /dev/null
-+++ b/drivers/cbus/Makefile
-@@ -0,0 +1,13 @@
-+#
-+# Makefile for CBUS.
-+#
-+
-+obj-$(CONFIG_CBUS) += cbus.o
-+obj-$(CONFIG_CBUS_TAHVO) += tahvo.o
-+obj-$(CONFIG_CBUS_RETU) += retu.o
-+obj-$(CONFIG_CBUS_TAHVO_USB) += tahvo-usb.o
-+
-+obj-$(CONFIG_CBUS_RETU_POWERBUTTON) += retu-pwrbutton.o
-+obj-$(CONFIG_CBUS_RETU_RTC) += retu-rtc.o
-+obj-$(CONFIG_CBUS_RETU_WDT) += retu-wdt.o
-+obj-$(CONFIG_CBUS_RETU_HEADSET) += retu-headset.o
---- /dev/null
-+++ b/drivers/cbus/retu.c
-@@ -0,0 +1,549 @@
-+/**
-+ * drivers/cbus/retu.c
-+ *
-+ * Support functions for Retu ASIC
-+ *
-+ * Copyright (C) 2004, 2005 Nokia Corporation
-+ *
-+ * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
-+ * David Weinehall <david.weinehall@nokia.com>, and
-+ * Mikko Ylinen <mikko.k.ylinen@nokia.com>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/init.h>
-+
-+#include <linux/slab.h>
-+#include <linux/kernel.h>
-+#include <linux/errno.h>
-+#include <linux/device.h>
-+#include <linux/mutex.h>
-+#include <linux/irq.h>
-+#include <linux/interrupt.h>
-+#include <linux/platform_device.h>
-+#include <linux/platform_data/cbus.h>
-+
-+#include <asm/bitops.h>
-+
-+#include "cbus.h"
-+#include "retu.h"
-+
-+struct retu {
-+ /* Device lock */
-+ struct mutex mutex;
-+ struct device *dev;
-+
-+ int devid;
-+
-+ int irq_base;
-+ int irq_end;
-+
-+ int irq;
-+
-+ int ack;
-+ bool ack_pending;
-+
-+ int mask;
-+ bool mask_pending;
-+
-+ bool is_vilma;
-+};
-+
-+static struct retu *the_retu;
-+
-+/**
-+ * __retu_read_reg - Read a value from a register in Retu
-+ * @retu: pointer to retu structure
-+ * @reg: the register address to read from
-+ */
-+static int __retu_read_reg(struct retu *retu, unsigned reg)
-+{
-+ return cbus_read_reg(retu->dev, retu->devid, reg);
-+}
-+
-+/**
-+ * __retu_write_reg - Writes a value to a register in Retu
-+ * @retu: pointer to retu structure
-+ * @reg: the register address to write to
-+ * @val: the value to write to the register
-+ */
-+static void __retu_write_reg(struct retu *retu, unsigned reg, u16 val)
-+{
-+ cbus_write_reg(retu->dev, retu->devid, reg, val);
-+}
-+
-+/**
-+ * retu_read_reg - Read a value from a register in Retu
-+ * @child: device pointer for the calling child
-+ * @reg: the register to read from
-+ *
-+ * This function returns the contents of the specified register
-+ */
-+int retu_read_reg(struct device *child, unsigned reg)
-+{
-+ struct retu *retu = dev_get_drvdata(child->parent);
-+
-+ return __retu_read_reg(retu, reg);
-+}
-+EXPORT_SYMBOL_GPL(retu_read_reg);
-+
-+/**
-+ * retu_write_reg - Write a value to a register in Retu
-+ * @child: the pointer to our calling child
-+ * @reg: the register to write to
-+ * @val: the value to write to the register
-+ *
-+ * This function writes a value to the specified register
-+ */
-+void retu_write_reg(struct device *child, unsigned reg, u16 val)
-+{
-+ struct retu *retu = dev_get_drvdata(child->parent);
-+
-+ mutex_lock(&retu->mutex);
-+ __retu_write_reg(retu, reg, val);
-+ mutex_unlock(&retu->mutex);
-+}
-+EXPORT_SYMBOL_GPL(retu_write_reg);
-+
-+/**
-+ * retu_set_clear_reg_bits - helper function to read/set/clear bits
-+ * @child: device pointer to calling child
-+ * @reg: the register address
-+ * @set: mask for setting bits
-+ * @clear: mask for clearing bits
-+ */
-+void retu_set_clear_reg_bits(struct device *child, unsigned reg, u16 set,
-+ u16 clear)
-+{
-+ struct retu *retu = dev_get_drvdata(child->parent);
-+ u16 w;
-+
-+ mutex_lock(&retu->mutex);
-+ w = __retu_read_reg(retu, reg);
-+ w &= ~clear;
-+ w |= set;
-+ __retu_write_reg(retu, reg, w);
-+ mutex_unlock(&retu->mutex);
-+}
-+EXPORT_SYMBOL_GPL(retu_set_clear_reg_bits);
-+
-+#define ADC_MAX_CHAN_NUMBER 13
-+
-+/**
-+ * retu_read_adc - Reads AD conversion result
-+ * @child: device pointer to calling child
-+ * @channel: the ADC channel to read from
-+ */
-+int retu_read_adc(struct device *child, int channel)
-+{
-+ struct retu *retu = dev_get_drvdata(child->parent);
-+ int res;
-+
-+ if (!retu)
-+ return -ENODEV;
-+
-+ if (channel < 0 || channel > ADC_MAX_CHAN_NUMBER)
-+ return -EINVAL;
-+
-+ mutex_lock(&retu->mutex);
-+
-+ if ((channel == 8) && retu->is_vilma) {
-+ int scr = __retu_read_reg(retu, RETU_REG_ADCSCR);
-+ int ch = (__retu_read_reg(retu, RETU_REG_ADCR) >> 10) & 0xf;
-+ if (((scr & 0xff) != 0) && (ch != 8))
-+ __retu_write_reg(retu, RETU_REG_ADCSCR, (scr & ~0xff));
-+ }
-+
-+ /* Select the channel and read result */
-+ __retu_write_reg(retu, RETU_REG_ADCR, channel << 10);
-+ res = __retu_read_reg(retu, RETU_REG_ADCR) & 0x3ff;
-+
-+ if (retu->is_vilma)
-+ __retu_write_reg(retu, RETU_REG_ADCR, (1 << 13));
-+
-+ /* Unlock retu */
-+ mutex_unlock(&retu->mutex);
-+
-+ return res;
-+}
-+EXPORT_SYMBOL_GPL(retu_read_adc);
-+
-+static irqreturn_t retu_irq_handler(int irq, void *_retu)
-+{
-+ struct retu *retu = _retu;
-+
-+ u16 idr;
-+ u16 imr;
-+
-+ mutex_lock(&retu->mutex);
-+ idr = __retu_read_reg(retu, RETU_REG_IDR);
-+ imr = __retu_read_reg(retu, RETU_REG_IMR);
-+ mutex_unlock(&retu->mutex);
-+
-+ idr &= ~imr;
-+ if (!idr) {
-+ dev_vdbg(retu->dev, "No IRQ, spurious?\n");
-+ return IRQ_NONE;
-+ }
-+
-+ while (idr) {
-+ unsigned long pending = __ffs(idr);
-+ unsigned int irq;
-+
-+ idr &= ~BIT(pending);
-+ irq = pending + retu->irq_base;
-+ handle_nested_irq(irq);
-+ }
-+
-+ return IRQ_HANDLED;
-+}
-+
-+/* -------------------------------------------------------------------------- */
-+
-+static void retu_irq_mask(struct irq_data *data)
-+{
-+ struct retu *retu = irq_data_get_irq_chip_data(data);
-+ int irq = data->irq;
-+
-+ retu->mask |= (1 << (irq - retu->irq_base));
-+ retu->mask_pending = true;
-+}
-+
-+static void retu_irq_unmask(struct irq_data *data)
-+{
-+ struct retu *retu = irq_data_get_irq_chip_data(data);
-+ int irq = data->irq;
-+
-+ retu->mask &= ~(1 << (irq - retu->irq_base));
-+ retu->mask_pending = true;
-+
-+}
-+
-+static void retu_irq_ack(struct irq_data *data)
-+{
-+ struct retu *retu = irq_data_get_irq_chip_data(data);
-+ int irq = data->irq;
-+
-+ retu->ack |= (1 << (irq - retu->irq_base));
-+ retu->ack_pending = true;
-+}
-+
-+static void retu_bus_lock(struct irq_data *data)
-+{
-+ struct retu *retu = irq_data_get_irq_chip_data(data);
-+
-+ mutex_lock(&retu->mutex);
-+}
-+
-+static void retu_bus_sync_unlock(struct irq_data *data)
-+{
-+ struct retu *retu = irq_data_get_irq_chip_data(data);
-+
-+ if (retu->mask_pending) {
-+ __retu_write_reg(retu, RETU_REG_IMR, retu->mask);
-+ retu->mask_pending = false;
-+ }
-+
-+ if (retu->ack_pending) {
-+ __retu_write_reg(retu, RETU_REG_IDR, retu->ack);
-+ retu->ack_pending = false;
-+ }
-+
-+ mutex_unlock(&retu->mutex);
-+}
-+
-+static struct irq_chip retu_irq_chip = {
-+ .name = "retu",
-+ .irq_bus_lock = retu_bus_lock,
-+ .irq_bus_sync_unlock = retu_bus_sync_unlock,
-+ .irq_mask = retu_irq_mask,
-+ .irq_unmask = retu_irq_unmask,
-+ .irq_ack = retu_irq_ack,
-+};
-+
-+static inline void retu_irq_setup(int irq)
-+{
-+#ifdef CONFIG_ARM
-+ set_irq_flags(irq, IRQF_VALID);
-+#else
-+ irq_set_noprobe(irq);
-+#endif
-+}
-+
-+static void retu_irq_init(struct retu *retu)
-+{
-+ int base = retu->irq_base;
-+ int end = retu->irq_end;
-+ int irq;
-+
-+ for (irq = base; irq < end; irq++) {
-+ irq_set_chip_data(irq, retu);
-+ irq_set_chip_and_handler(irq, &retu_irq_chip,
-+ handle_simple_irq);
-+ irq_set_nested_thread(irq, 1);
-+ retu_irq_setup(irq);
-+ }
-+}
-+
-+static void retu_irq_exit(struct retu *retu)
-+{
-+ int base = retu->irq_base;
-+ int end = retu->irq_end;
-+ int irq;
-+
-+ for (irq = base; irq < end; irq++) {
-+#ifdef CONFIG_ARM
-+ set_irq_flags(irq, 0);
-+#endif
-+ irq_set_chip_and_handler(irq, NULL, NULL);
-+ irq_set_chip_data(irq, NULL);
-+ }
-+}
-+
-+/* -------------------------------------------------------------------------- */
-+
-+/**
-+ * retu_power_off - Shut down power to system
-+ *
-+ * This function puts the system in power off state
-+ */
-+static void retu_power_off(void)
-+{
-+ struct retu *retu = the_retu;
-+ unsigned reg;
-+
-+ reg = __retu_read_reg(retu, RETU_REG_CC1);
-+
-+ /* Ignore power button state */
-+ __retu_write_reg(retu, RETU_REG_CC1, reg | 2);
-+ /* Expire watchdog immediately */
-+ __retu_write_reg(retu, RETU_REG_WATCHDOG, 0);
-+ /* Wait for poweroff*/
-+ for (;;);
-+}
-+
-+static struct resource generic_resources[] = {
-+ {
-+ .start = -EINVAL, /* fixed later */
-+ .flags = IORESOURCE_IRQ,
-+ },
-+ {
-+ .start = -EINVAL, /* fixed later */
-+ .flags = IORESOURCE_IRQ,
-+ },
-+};
-+
-+/**
-+ * retu_allocate_child - Allocates one Retu child
-+ * @name: name of new child
-+ * @parent: parent device for this child
-+ */
-+static struct device *retu_allocate_child(char *name, struct device *parent,
-+ int irq_base, int irq1, int irq2, int num)
-+{
-+ struct platform_device *pdev;
-+ int status;
-+
-+ pdev = platform_device_alloc(name, -1);
-+ if (!pdev) {
-+ dev_dbg(parent, "can't allocate %s\n", name);
-+ goto err;
-+ }
-+
-+ pdev->dev.parent = parent;
-+
-+ if (num) {
-+ generic_resources[0].start = irq_base + irq1;
-+ generic_resources[1].start = irq_base + irq2;
-+
-+ status = platform_device_add_resources(pdev,
-+ generic_resources, num);
-+ if (status < 0) {
-+ dev_dbg(parent, "can't add resources to %s\n", name);
-+ goto err;
-+ }
-+ }
-+
-+ status = platform_device_add(pdev);
-+ if (status < 0) {
-+ dev_dbg(parent, "can't add %s\n", name);
-+ goto err;
-+ }
-+
-+ return &pdev->dev;
-+
-+err:
-+ platform_device_put(pdev);
-+
-+ return NULL;
-+}
-+
-+/**
-+ * retu_allocate_children - Allocates Retu's children
-+ */
-+static int retu_allocate_children(struct device *parent, int irq_base)
-+{
-+ struct device *child;
-+
-+ child = retu_allocate_child("retu-pwrbutton", parent, irq_base,
-+ RETU_INT_PWR, -1, 1);
-+ if (!child)
-+ return -ENOMEM;
-+
-+ child = retu_allocate_child("retu-headset", parent, irq_base,
-+ RETU_INT_HOOK, -1, 1);
-+ if (!child)
-+ return -ENOMEM;
-+
-+ child = retu_allocate_child("retu-rtc", parent, irq_base,
-+ RETU_INT_RTCS, RETU_INT_RTCA, 2);
-+ if (!child)
-+ return -ENOMEM;
-+
-+ child = retu_allocate_child("retu-wdt", parent, -1, -1, -1, 0);
-+ if (!child)
-+ return -ENOMEM;
-+
-+ return 0;
-+}
-+
-+/**
-+ * retu_probe - Probe for Retu ASIC
-+ * @dev: the Retu device
-+ *
-+ * Probe for the Retu ASIC and allocate memory
-+ * for its device-struct if found
-+ */
-+static int __devinit retu_probe(struct platform_device *pdev)
-+{
-+ struct retu *retu;
-+ struct cbus_retu_platform_data *pdata = pdev->dev.platform_data;
-+
-+ int ret = -ENOMEM;
-+ int rev;
-+
-+ retu = kzalloc(sizeof(*retu), GFP_KERNEL);
-+ if (!retu) {
-+ dev_err(&pdev->dev, "not enough memory\n");
-+ goto err0;
-+ }
-+
-+ platform_set_drvdata(pdev, retu);
-+
-+ ret = irq_alloc_descs(-1, 0, MAX_RETU_IRQ_HANDLERS, 0);
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "failed to allocate IRQ descs\n");
-+ goto err1;
-+ }
-+
-+ retu->irq = platform_get_irq(pdev, 0);
-+ retu->irq_base = ret;
-+ retu->irq_end = ret + MAX_RETU_IRQ_HANDLERS;
-+ retu->devid = pdata->devid;
-+ retu->dev = &pdev->dev;
-+ the_retu = retu;
-+
-+ mutex_init(&retu->mutex);
-+
-+ retu_irq_init(retu);
-+
-+ rev = __retu_read_reg(retu, RETU_REG_ASICR) & 0xff;
-+ if (rev & (1 << 7))
-+ retu->is_vilma = true;
-+
-+ dev_info(&pdev->dev, "%s v%d.%d found\n",
-+ retu->is_vilma ? "Vilma" : "Retu",
-+ (rev >> 4) & 0x07, rev & 0x0f);
-+
-+ /* Mask all RETU interrupts */
-+ __retu_write_reg(retu, RETU_REG_IMR, 0xffff);
-+
-+ ret = request_threaded_irq(retu->irq, NULL, retu_irq_handler,
-+ IRQF_ONESHOT, "retu", retu);
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "Unable to register IRQ handler\n");
-+ goto err2;
-+ }
-+
-+ irq_set_irq_wake(retu->irq, 1);
-+
-+ /* Register power off function */
-+ pm_power_off = retu_power_off;
-+
-+ ret = retu_allocate_children(&pdev->dev, retu->irq_base);
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "Unable to allocate Retu children\n");
-+ goto err3;
-+ }
-+
-+ return 0;
-+
-+err3:
-+ pm_power_off = NULL;
-+ free_irq(retu->irq, retu);
-+
-+err2:
-+ retu_irq_exit(retu);
-+ irq_free_descs(retu->irq_base, MAX_RETU_IRQ_HANDLERS);
-+
-+err1:
-+ kfree(retu);
-+ the_retu = NULL;
-+
-+err0:
-+ return ret;
-+}
-+
-+static int __devexit retu_remove(struct platform_device *pdev)
-+{
-+ struct retu *retu = platform_get_drvdata(pdev);
-+
-+ pm_power_off = NULL;
-+ the_retu = NULL;
-+
-+ free_irq(retu->irq, retu);
-+ retu_irq_exit(retu);
-+ irq_free_descs(retu->irq_base, MAX_RETU_IRQ_HANDLERS);
-+ kfree(retu);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver retu_driver = {
-+ .probe = retu_probe,
-+ .remove = __devexit_p(retu_remove),
-+ .driver = {
-+ .name = "retu",
-+ },
-+};
-+
-+static int __init retu_init(void)
-+{
-+ return platform_driver_register(&retu_driver);
-+}
-+subsys_initcall(retu_init);
-+
-+static void __exit retu_exit(void)
-+{
-+ platform_driver_unregister(&retu_driver);
-+}
-+module_exit(retu_exit);
-+
-+MODULE_DESCRIPTION("Retu ASIC control");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Juha Yrjölä");
-+MODULE_AUTHOR("David Weinehall");
-+MODULE_AUTHOR("Mikko Ylinen");
---- /dev/null
-+++ b/drivers/cbus/retu.h
-@@ -0,0 +1,85 @@
-+/**
-+ * drivers/cbus/retu.h
-+ *
-+ * Copyright (C) 2004, 2005 Nokia Corporation
-+ *
-+ * Written by Juha Yrjölä <juha.yrjola@nokia.com> and
-+ * David Weinehall <david.weinehall@nokia.com>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#ifndef __DRIVERS_CBUS_RETU_H
-+#define __DRIVERS_CBUS_RETU_H
-+
-+#include <linux/types.h>
-+
-+/* Registers */
-+#define RETU_REG_ASICR 0x00 /* ASIC ID & revision */
-+#define RETU_REG_IDR 0x01 /* Interrupt ID */
-+#define RETU_REG_IMR 0x02 /* Interrupt mask */
-+#define RETU_REG_RTCDSR 0x03 /* RTC seconds register */
-+#define RETU_REG_RTCHMR 0x04 /* RTC hours and minutes register */
-+#define RETU_REG_RTCHMAR 0x05 /* RTC hours and minutes alarm and time set register */
-+#define RETU_REG_RTCCALR 0x06 /* RTC calibration register */
-+#define RETU_REG_ADCR 0x08 /* ADC result */
-+#define RETU_REG_ADCSCR 0x09 /* ADC sample ctrl */
-+#define RETU_REG_CC1 0x0d /* Common control register 1 */
-+#define RETU_REG_CC2 0x0e /* Common control register 2 */
-+#define RETU_REG_CTRL_CLR 0x0f /* Regulator clear register */
-+#define RETU_REG_CTRL_SET 0x10 /* Regulator set register */
-+#define RETU_REG_STATUS 0x16 /* Status register */
-+#define RETU_REG_STATUS_BATAVAIL 0x0100 /* Battery available */
-+#define RETU_REG_STATUS_CHGPLUG 0x1000 /* Charger is plugged in */
-+#define RETU_REG_WATCHDOG 0x17 /* Watchdog register */
-+#define RETU_REG_AUDTXR 0x18 /* Audio Codec Tx register */
-+#define RETU_REG_MAX 0x1f
-+
-+/* Interrupt sources */
-+#define RETU_INT_PWR 0
-+#define RETU_INT_CHAR 1
-+#define RETU_INT_RTCS 2
-+#define RETU_INT_RTCM 3
-+#define RETU_INT_RTCD 4
-+#define RETU_INT_RTCA 5
-+#define RETU_INT_HOOK 6
-+#define RETU_INT_HEAD 7
-+#define RETU_INT_ADCS 8
-+
-+#define MAX_RETU_IRQ_HANDLERS 16
-+
-+/* ADC channels */
-+#define RETU_ADC_GND 0x00 /* Ground */
-+#define RETU_ADC_BSI 0x01 /* Battery Size Indicator */
-+#define RETU_ADC_BATTEMP 0x02 /* Battery temperature */
-+#define RETU_ADC_CHGVOLT 0x03 /* Charger voltage */
-+#define RETU_ADC_HEADSET 0x04 /* Headset detection */
-+#define RETU_ADC_HOOKDET 0x05 /* Hook detection */
-+#define RETU_ADC_RFGP 0x06 /* RF GP */
-+#define RETU_ADC_WBTX 0x07 /* Wideband Tx detection */
-+#define RETU_ADC_BATTVOLT 0x08 /* Battery voltage measurement */
-+#define RETU_ADC_GND2 0x09 /* Ground */
-+#define RETU_ADC_LIGHTSENS 0x0A /* Light sensor */
-+#define RETU_ADC_LIGHTTEMP 0x0B /* Light sensor temperature */
-+#define RETU_ADC_BKUPVOLT 0x0C /* Backup battery voltage */
-+#define RETU_ADC_TEMP 0x0D /* RETU temperature */
-+
-+
-+int retu_read_reg(struct device *child, unsigned reg);
-+void retu_write_reg(struct device *child, unsigned reg, u16 val);
-+void retu_set_clear_reg_bits(struct device *child, unsigned reg, u16 set,
-+ u16 clear);
-+int retu_read_adc(struct device *child, int channel);
-+
-+#endif /* __DRIVERS_CBUS_RETU_H */
---- /dev/null
-+++ b/drivers/cbus/retu-headset.c
-@@ -0,0 +1,359 @@
-+/**
-+ * Retu/Vilma headset detection
-+ *
-+ * Copyright (C) 2006 Nokia Corporation
-+ *
-+ * Written by Juha Yrjölä
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/kernel.h>
-+#include <linux/irq.h>
-+#include <linux/interrupt.h>
-+#include <linux/slab.h>
-+#include <linux/delay.h>
-+#include <linux/input.h>
-+#include <linux/platform_device.h>
-+
-+#include "retu.h"
-+
-+#define RETU_ADC_CHANNEL_HOOKDET 0x05
-+
-+#define RETU_HEADSET_KEY KEY_PHONE
-+
-+struct retu_headset {
-+ spinlock_t lock;
-+ struct mutex mutex;
-+ struct device *dev;
-+ struct input_dev *idev;
-+ unsigned bias_enabled;
-+ unsigned detection_enabled;
-+ unsigned pressed;
-+ struct timer_list enable_timer;
-+ struct timer_list detect_timer;
-+ int irq;
-+};
-+
-+static void retu_headset_set_bias(struct retu_headset *hs, int enable)
-+{
-+ if (enable) {
-+ retu_set_clear_reg_bits(hs->dev, RETU_REG_AUDTXR,
-+ (1 << 0) | (1 << 1), 0);
-+ msleep(2);
-+ retu_set_clear_reg_bits(hs->dev, RETU_REG_AUDTXR,
-+ 1 << 3, 0);
-+ } else {
-+ retu_set_clear_reg_bits(hs->dev, RETU_REG_AUDTXR, 0,
-+ (1 << 0) | (1 << 1) | (1 << 3));
-+ }
-+}
-+
-+static void retu_headset_enable(struct retu_headset *hs)
-+{
-+ mutex_lock(&hs->mutex);
-+ if (!hs->bias_enabled) {
-+ hs->bias_enabled = 1;
-+ retu_headset_set_bias(hs, 1);
-+ }
-+ mutex_unlock(&hs->mutex);
-+}
-+
-+static void retu_headset_disable(struct retu_headset *hs)
-+{
-+ mutex_lock(&hs->mutex);
-+ if (hs->bias_enabled) {
-+ hs->bias_enabled = 0;
-+ retu_headset_set_bias(hs, 0);
-+ }
-+ mutex_unlock(&hs->mutex);
-+}
-+
-+static void retu_headset_det_enable(struct retu_headset *hs)
-+{
-+ mutex_lock(&hs->mutex);
-+ if (!hs->detection_enabled) {
-+ hs->detection_enabled = 1;
-+ retu_set_clear_reg_bits(hs->dev, RETU_REG_CC1,
-+ (1 << 10) | (1 << 8), 0);
-+ }
-+ mutex_unlock(&hs->mutex);
-+}
-+
-+static void retu_headset_det_disable(struct retu_headset *hs)
-+{
-+ unsigned long flags;
-+
-+ mutex_lock(&hs->mutex);
-+ if (hs->detection_enabled) {
-+ hs->detection_enabled = 0;
-+ del_timer_sync(&hs->enable_timer);
-+ del_timer_sync(&hs->detect_timer);
-+ spin_lock_irqsave(&hs->lock, flags);
-+ if (hs->pressed)
-+ input_report_key(hs->idev, RETU_HEADSET_KEY, 0);
-+ spin_unlock_irqrestore(&hs->lock, flags);
-+ retu_set_clear_reg_bits(hs->dev, RETU_REG_CC1, 0,
-+ (1 << 10) | (1 << 8));
-+ }
-+ mutex_unlock(&hs->mutex);
-+}
-+
-+static ssize_t retu_headset_hookdet_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ int val;
-+
-+ val = retu_read_adc(dev, RETU_ADC_CHANNEL_HOOKDET);
-+ return sprintf(buf, "%d\n", val);
-+}
-+
-+static DEVICE_ATTR(hookdet, S_IRUGO, retu_headset_hookdet_show, NULL);
-+
-+static ssize_t retu_headset_enable_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct retu_headset *hs = dev_get_drvdata(dev);
-+
-+ return sprintf(buf, "%u\n", hs->bias_enabled);
-+}
-+
-+static ssize_t retu_headset_enable_store(struct device *dev,
-+ struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ struct retu_headset *hs = dev_get_drvdata(dev);
-+ int enable;
-+
-+ if (sscanf(buf, "%u", &enable) != 1)
-+ return -EINVAL;
-+ if (enable)
-+ retu_headset_enable(hs);
-+ else
-+ retu_headset_disable(hs);
-+ return count;
-+}
-+
-+static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR | S_IWGRP,
-+ retu_headset_enable_show, retu_headset_enable_store);
-+
-+static ssize_t retu_headset_enable_det_show(struct device *dev,
-+ struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct retu_headset *hs = dev_get_drvdata(dev);
-+
-+ return sprintf(buf, "%u\n", hs->detection_enabled);
-+}
-+
-+static ssize_t retu_headset_enable_det_store(struct device *dev,
-+ struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ struct retu_headset *hs = dev_get_drvdata(dev);
-+ int enable;
-+
-+ if (sscanf(buf, "%u", &enable) != 1)
-+ return -EINVAL;
-+ if (enable)
-+ retu_headset_det_enable(hs);
-+ else
-+ retu_headset_det_disable(hs);
-+ return count;
-+}
-+
-+static DEVICE_ATTR(enable_det, S_IRUGO | S_IWUSR | S_IWGRP,
-+ retu_headset_enable_det_show,
-+ retu_headset_enable_det_store);
-+
-+static irqreturn_t retu_headset_hook_interrupt(int irq, void *_hs)
-+{
-+ struct retu_headset *hs = _hs;
-+ unsigned long flags;
-+
-+ spin_lock_irqsave(&hs->lock, flags);
-+ if (!hs->pressed) {
-+ /* Headset button was just pressed down. */
-+ hs->pressed = 1;
-+ input_report_key(hs->idev, RETU_HEADSET_KEY, 1);
-+ }
-+ spin_unlock_irqrestore(&hs->lock, flags);
-+ retu_set_clear_reg_bits(hs->dev, RETU_REG_CC1, 0,
-+ (1 << 10) | (1 << 8));
-+ mod_timer(&hs->enable_timer, jiffies + msecs_to_jiffies(50));
-+
-+ return IRQ_HANDLED;
-+}
-+
-+static void retu_headset_enable_timer(unsigned long arg)
-+{
-+ struct retu_headset *hs = (struct retu_headset *) arg;
-+
-+ retu_set_clear_reg_bits(hs->dev, RETU_REG_CC1,
-+ (1 << 10) | (1 << 8), 0);
-+ mod_timer(&hs->detect_timer, jiffies + msecs_to_jiffies(350));
-+}
-+
-+static void retu_headset_detect_timer(unsigned long arg)
-+{
-+ struct retu_headset *hs = (struct retu_headset *) arg;
-+ unsigned long flags;
-+
-+ spin_lock_irqsave(&hs->lock, flags);
-+ if (hs->pressed) {
-+ hs->pressed = 0;
-+ input_report_key(hs->idev, RETU_HEADSET_KEY, 0);
-+ }
-+ spin_unlock_irqrestore(&hs->lock, flags);
-+}
-+
-+static int __init retu_headset_probe(struct platform_device *pdev)
-+{
-+ struct retu_headset *hs;
-+ int irq;
-+ int r;
-+
-+ hs = kzalloc(sizeof(*hs), GFP_KERNEL);
-+ if (hs == NULL)
-+ return -ENOMEM;
-+
-+ hs->dev = &pdev->dev;
-+
-+ hs->idev = input_allocate_device();
-+ if (hs->idev == NULL) {
-+ r = -ENOMEM;
-+ goto err1;
-+ }
-+ hs->idev->name = "retu-headset";
-+ hs->idev->dev.parent = &pdev->dev;
-+ set_bit(EV_KEY, hs->idev->evbit);
-+ set_bit(RETU_HEADSET_KEY, hs->idev->keybit);
-+ r = input_register_device(hs->idev);
-+ if (r < 0)
-+ goto err2;
-+
-+ r = device_create_file(&pdev->dev, &dev_attr_hookdet);
-+ if (r < 0)
-+ goto err3;
-+ r = device_create_file(&pdev->dev, &dev_attr_enable);
-+ if (r < 0)
-+ goto err4;
-+ r = device_create_file(&pdev->dev, &dev_attr_enable_det);
-+ if (r < 0)
-+ goto err5;
-+ platform_set_drvdata(pdev, hs);
-+
-+ spin_lock_init(&hs->lock);
-+ mutex_init(&hs->mutex);
-+ setup_timer(&hs->enable_timer, retu_headset_enable_timer,
-+ (unsigned long) hs);
-+ setup_timer(&hs->detect_timer, retu_headset_detect_timer,
-+ (unsigned long) hs);
-+
-+ irq = platform_get_irq(pdev, 0);
-+ hs->irq = irq;
-+
-+ r = request_threaded_irq(irq, NULL, retu_headset_hook_interrupt, 0,
-+ "hookdet", hs);
-+ if (r != 0) {
-+ dev_err(&pdev->dev, "hookdet IRQ not available\n");
-+ goto err6;
-+ }
-+
-+ return 0;
-+err6:
-+ device_remove_file(&pdev->dev, &dev_attr_enable_det);
-+err5:
-+ device_remove_file(&pdev->dev, &dev_attr_enable);
-+err4:
-+ device_remove_file(&pdev->dev, &dev_attr_hookdet);
-+err3:
-+ input_unregister_device(hs->idev);
-+err2:
-+ input_free_device(hs->idev);
-+err1:
-+ kfree(hs);
-+ return r;
-+}
-+
-+static int retu_headset_remove(struct platform_device *pdev)
-+{
-+ struct retu_headset *hs = platform_get_drvdata(pdev);
-+
-+ device_remove_file(&pdev->dev, &dev_attr_hookdet);
-+ device_remove_file(&pdev->dev, &dev_attr_enable);
-+ device_remove_file(&pdev->dev, &dev_attr_enable_det);
-+ retu_headset_disable(hs);
-+ retu_headset_det_disable(hs);
-+ free_irq(hs->irq, hs);
-+ input_unregister_device(hs->idev);
-+ input_free_device(hs->idev);
-+
-+ return 0;
-+}
-+
-+static int retu_headset_suspend(struct platform_device *pdev,
-+ pm_message_t mesg)
-+{
-+ struct retu_headset *hs = platform_get_drvdata(pdev);
-+
-+ mutex_lock(&hs->mutex);
-+ if (hs->bias_enabled)
-+ retu_headset_set_bias(hs, 0);
-+ mutex_unlock(&hs->mutex);
-+
-+ return 0;
-+}
-+
-+static int retu_headset_resume(struct platform_device *pdev)
-+{
-+ struct retu_headset *hs = platform_get_drvdata(pdev);
-+
-+ mutex_lock(&hs->mutex);
-+ if (hs->bias_enabled)
-+ retu_headset_set_bias(hs, 1);
-+ mutex_unlock(&hs->mutex);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver retu_headset_driver = {
-+ .remove = retu_headset_remove,
-+ .suspend = retu_headset_suspend,
-+ .resume = retu_headset_resume,
-+ .driver = {
-+ .name = "retu-headset",
-+ },
-+};
-+
-+static int __init retu_headset_init(void)
-+{
-+ return platform_driver_probe(&retu_headset_driver, retu_headset_probe);
-+}
-+
-+static void __exit retu_headset_exit(void)
-+{
-+ platform_driver_unregister(&retu_headset_driver);
-+}
-+
-+module_init(retu_headset_init);
-+module_exit(retu_headset_exit);
-+
-+MODULE_DESCRIPTION("Retu/Vilma headset detection");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Juha Yrjölä");
---- /dev/null
-+++ b/drivers/cbus/retu-pwrbutton.c
-@@ -0,0 +1,165 @@
-+/**
-+ * drivers/cbus/retu-pwrbutton.c
-+ *
-+ * Driver for sending retu power button event to input-layer
-+ *
-+ * Copyright (C) 2004-2010 Nokia Corporation
-+ *
-+ * Written by
-+ * Ari Saastamoinen <ari.saastamoinen@elektrobit.com>
-+ * Juha Yrjola <juha.yrjola@solidboot.com>
-+ *
-+ * Contact: Felipe Balbi <felipe.balbi@nokia.com>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/kernel.h>
-+#include <linux/errno.h>
-+#include <linux/input.h>
-+#include <linux/jiffies.h>
-+#include <linux/bitops.h>
-+#include <linux/irq.h>
-+#include <linux/interrupt.h>
-+#include <linux/platform_device.h>
-+#include <linux/slab.h>
-+
-+#include "retu.h"
-+
-+#define RETU_STATUS_PWRONX (1 << 5)
-+
-+#define PWRBTN_DELAY 20
-+#define PWRBTN_UP 0
-+#define PWRBTN_PRESSED 1
-+
-+struct retu_pwrbutton {
-+ struct input_dev *idev;
-+ struct device *dev;
-+
-+ int state;
-+ int irq;
-+};
-+
-+static irqreturn_t retubutton_irq(int irq, void *_pwr)
-+{
-+ struct retu_pwrbutton *pwr = _pwr;
-+ int state;
-+
-+ if (retu_read_reg(pwr->dev, RETU_REG_STATUS) & RETU_STATUS_PWRONX)
-+ state = PWRBTN_UP;
-+ else
-+ state = PWRBTN_PRESSED;
-+
-+ if (pwr->state != state) {
-+ input_report_key(pwr->idev, KEY_POWER, state);
-+ input_sync(pwr->idev);
-+ pwr->state = state;
-+ }
-+
-+ return IRQ_HANDLED;
-+}
-+
-+static int __init retubutton_probe(struct platform_device *pdev)
-+{
-+ struct retu_pwrbutton *pwr;
-+ int ret = 0;
-+
-+ pwr = kzalloc(sizeof(*pwr), GFP_KERNEL);
-+ if (!pwr) {
-+ dev_err(&pdev->dev, "not enough memory\n");
-+ ret = -ENOMEM;
-+ goto err0;
-+ }
-+
-+ pwr->dev = &pdev->dev;
-+ pwr->irq = platform_get_irq(pdev, 0);
-+ platform_set_drvdata(pdev, pwr);
-+
-+ ret = request_threaded_irq(pwr->irq, NULL, retubutton_irq, 0,
-+ "retu-pwrbutton", pwr);
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "Cannot allocate irq\n");
-+ goto err1;
-+ }
-+
-+ pwr->idev = input_allocate_device();
-+ if (!pwr->idev) {
-+ dev_err(&pdev->dev, "can't allocate input device\n");
-+ ret = -ENOMEM;
-+ goto err2;
-+ }
-+
-+ pwr->idev->evbit[0] = BIT_MASK(EV_KEY);
-+ pwr->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
-+ pwr->idev->name = "retu-pwrbutton";
-+
-+ ret = input_register_device(pwr->idev);
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "failed to register input device\n");
-+ goto err3;
-+ }
-+
-+ return 0;
-+
-+err3:
-+ input_free_device(pwr->idev);
-+
-+err2:
-+ free_irq(pwr->irq, pwr);
-+
-+err1:
-+ kfree(pwr);
-+
-+err0:
-+ return ret;
-+}
-+
-+static int __exit retubutton_remove(struct platform_device *pdev)
-+{
-+ struct retu_pwrbutton *pwr = platform_get_drvdata(pdev);
-+
-+ free_irq(pwr->irq, pwr);
-+ input_unregister_device(pwr->idev);
-+ input_free_device(pwr->idev);
-+ kfree(pwr);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver retu_pwrbutton_driver = {
-+ .remove = __exit_p(retubutton_remove),
-+ .driver = {
-+ .name = "retu-pwrbutton",
-+ },
-+};
-+
-+static int __init retubutton_init(void)
-+{
-+ return platform_driver_probe(&retu_pwrbutton_driver, retubutton_probe);
-+}
-+module_init(retubutton_init);
-+
-+static void __exit retubutton_exit(void)
-+{
-+ platform_driver_unregister(&retu_pwrbutton_driver);
-+}
-+module_exit(retubutton_exit);
-+
-+MODULE_DESCRIPTION("Retu Power Button");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Ari Saastamoinen");
-+MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
-+
---- /dev/null
-+++ b/drivers/cbus/retu-rtc.c
-@@ -0,0 +1,287 @@
-+/**
-+ * drivers/cbus/retu-rtc.c
-+ *
-+ * Support for Retu RTC
-+ *
-+ * Copyright (C) 2004, 2005 Nokia Corporation
-+ *
-+ * Written by Paul Mundt <paul.mundt@nokia.com> and
-+ * Igor Stoppa <igor.stoppa@nokia.com>
-+ *
-+ * The Retu RTC is essentially a partial read-only RTC that gives us Retu's
-+ * idea of what time actually is. It's left as a userspace excercise to map
-+ * this back to time in the real world and ensure that calibration settings
-+ * are sane to compensate for any horrible drift (on account of not being able
-+ * to set the clock to anything).
-+ *
-+ * Days are semi-writeable. Namely, Retu will only track 255 days for us
-+ * consecutively, after which the counter is explicitly stuck at 255 until
-+ * someone comes along and clears it with a write. In the event that no one
-+ * comes along and clears it, we no longer have any idea what day it is.
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#include <linux/device.h>
-+#include <linux/init.h>
-+#include <linux/kernel.h>
-+#include <linux/slab.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/mutex.h>
-+#include <linux/rtc.h>
-+
-+#include "cbus.h"
-+#include "retu.h"
-+
-+struct retu_rtc {
-+ /* device lock */
-+ struct mutex mutex;
-+ struct device *dev;
-+ struct rtc_device *rtc;
-+
-+ u16 alarm_expired;
-+ int irq_rtcs;
-+ int irq_rtca;
-+};
-+
-+static void retu_rtc_do_reset(struct retu_rtc *rtc)
-+{
-+ u16 ccr1;
-+
-+ ccr1 = retu_read_reg(rtc->dev, RETU_REG_CC1);
-+ /* RTC in reset */
-+ retu_write_reg(rtc->dev, RETU_REG_CC1, ccr1 | 0x0001);
-+ /* RTC in normal operating mode */
-+ retu_write_reg(rtc->dev, RETU_REG_CC1, ccr1 & ~0x0001);
-+
-+ /* Disable alarm and RTC WD */
-+ retu_write_reg(rtc->dev, RETU_REG_RTCHMAR, 0x7f3f);
-+ /* Set Calibration register to default value */
-+ retu_write_reg(rtc->dev, RETU_REG_RTCCALR, 0x00c0);
-+
-+ rtc->alarm_expired = 0;
-+}
-+
-+static irqreturn_t retu_rtc_interrupt(int irq, void *_rtc)
-+{
-+ struct retu_rtc *rtc = _rtc;
-+
-+ mutex_lock(&rtc->mutex);
-+ rtc->alarm_expired = 1;
-+ retu_write_reg(rtc->dev, RETU_REG_RTCHMAR, (24 << 8) | 60);
-+ mutex_unlock(&rtc->mutex);
-+
-+ return IRQ_HANDLED;
-+}
-+
-+static int retu_rtc_init_irq(struct retu_rtc *rtc)
-+{
-+ int irq;
-+ int ret;
-+
-+ irq = platform_get_irq(to_platform_device(rtc->dev), 0);
-+ rtc->irq_rtcs = irq;
-+
-+ irq = platform_get_irq(to_platform_device(rtc->dev), 1);
-+ rtc->irq_rtca = irq;
-+
-+ ret = request_threaded_irq(rtc->irq_rtcs, NULL, retu_rtc_interrupt,
-+ 0, "RTCS", rtc);
-+ if (ret != 0)
-+ return ret;
-+
-+ ret = request_threaded_irq(rtc->irq_rtca, NULL, retu_rtc_interrupt,
-+ 0, "RTCA", rtc);
-+ if (ret != 0) {
-+ free_irq(rtc->irq_rtcs, rtc);
-+ return ret;
-+ }
-+
-+ return 0;
-+}
-+
-+static int retu_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
-+{
-+ struct retu_rtc *rtc = dev_get_drvdata(dev);
-+ u16 chmar;
-+
-+ mutex_lock(&rtc->mutex);
-+
-+ chmar = ((alm->time.tm_hour & 0x1f) << 8) | (alm->time.tm_min & 0x3f);
-+ retu_write_reg(rtc->dev, RETU_REG_RTCHMAR, chmar);
-+
-+ mutex_unlock(&rtc->mutex);
-+
-+ return 0;
-+}
-+
-+static int retu_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
-+{
-+ struct retu_rtc *rtc = dev_get_drvdata(dev);
-+ u16 chmar;
-+
-+ mutex_lock(&rtc->mutex);
-+
-+ chmar = retu_read_reg(rtc->dev, RETU_REG_RTCHMAR);
-+
-+ alm->time.tm_hour = (chmar >> 8) & 0x1f;
-+ alm->time.tm_min = chmar & 0x3f;
-+ alm->enabled = !!rtc->alarm_expired;
-+
-+ mutex_unlock(&rtc->mutex);
-+
-+ return 0;
-+}
-+
-+static int retu_rtc_set_time(struct device *dev, struct rtc_time *tm)
-+{
-+ struct retu_rtc *rtc = dev_get_drvdata(dev);
-+ u16 dsr;
-+ u16 hmr;
-+
-+ dsr = ((tm->tm_mday & 0xff) << 8) | (tm->tm_hour & 0xff);
-+ hmr = ((tm->tm_min & 0xff) << 8) | (tm->tm_sec & 0xff);
-+
-+ mutex_lock(&rtc->mutex);
-+
-+ retu_write_reg(rtc->dev, RETU_REG_RTCDSR, dsr);
-+ retu_write_reg(rtc->dev, RETU_REG_RTCHMR, hmr);
-+
-+ mutex_unlock(&rtc->mutex);
-+
-+ return 0;
-+}
-+
-+static int retu_rtc_read_time(struct device *dev, struct rtc_time *tm)
-+{
-+ struct retu_rtc *rtc = dev_get_drvdata(dev);
-+ u16 dsr;
-+ u16 hmr;
-+
-+ /*
-+ * DSR holds days and hours
-+ * HMR hols minutes and seconds
-+ *
-+ * both are 16 bit registers with 8-bit for each field.
-+ */
-+
-+ mutex_lock(&rtc->mutex);
-+
-+ dsr = retu_read_reg(rtc->dev, RETU_REG_RTCDSR);
-+ hmr = retu_read_reg(rtc->dev, RETU_REG_RTCHMR);
-+
-+ tm->tm_sec = hmr & 0xff;
-+ tm->tm_min = hmr >> 8;
-+ tm->tm_hour = dsr & 0xff;
-+ tm->tm_mday = dsr >> 8;
-+
-+ mutex_unlock(&rtc->mutex);
-+
-+ return 0;
-+}
-+
-+static struct rtc_class_ops retu_rtc_ops = {
-+ .read_time = retu_rtc_read_time,
-+ .set_time = retu_rtc_set_time,
-+ .read_alarm = retu_rtc_read_alarm,
-+ .set_alarm = retu_rtc_set_alarm,
-+};
-+
-+static int __init retu_rtc_probe(struct platform_device *pdev)
-+{
-+ struct retu_rtc *rtc;
-+ int r;
-+
-+ rtc = kzalloc(sizeof(*rtc), GFP_KERNEL);
-+ if (!rtc) {
-+ dev_err(&pdev->dev, "not enough memory\n");
-+ r = -ENOMEM;
-+ goto err0;
-+ }
-+
-+ rtc->dev = &pdev->dev;
-+ platform_set_drvdata(pdev, rtc);
-+ mutex_init(&rtc->mutex);
-+
-+ rtc->alarm_expired = retu_read_reg(rtc->dev, RETU_REG_IDR) &
-+ (0x1 << RETU_INT_RTCA);
-+
-+ r = retu_rtc_init_irq(rtc);
-+ if (r < 0) {
-+ dev_err(&pdev->dev, "failed to request retu irq\n");
-+ goto err1;
-+ }
-+
-+ /* If the calibration register is zero, we've probably lost power */
-+ if (!(retu_read_reg(rtc->dev, RETU_REG_RTCCALR) & 0x00ff))
-+ retu_rtc_do_reset(rtc);
-+
-+ rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, &
-+ retu_rtc_ops, THIS_MODULE);
-+ if (IS_ERR(rtc->rtc)) {
-+ dev_err(&pdev->dev, "can't register RTC device\n");
-+ goto err2;
-+ }
-+
-+ return 0;
-+
-+err2:
-+ free_irq(rtc->irq_rtcs, rtc);
-+ free_irq(rtc->irq_rtca, rtc);
-+
-+err1:
-+ kfree(rtc);
-+
-+err0:
-+ return r;
-+}
-+
-+static int __devexit retu_rtc_remove(struct platform_device *pdev)
-+{
-+ struct retu_rtc *rtc = platform_get_drvdata(pdev);
-+
-+ free_irq(rtc->irq_rtcs, rtc);
-+ free_irq(rtc->irq_rtca, rtc);
-+ rtc_device_unregister(rtc->rtc);
-+ kfree(rtc);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver retu_rtc_driver = {
-+ .remove = __exit_p(retu_rtc_remove),
-+ .driver = {
-+ .name = "retu-rtc",
-+ },
-+};
-+
-+static int __init retu_rtc_init(void)
-+{
-+ return platform_driver_probe(&retu_rtc_driver, retu_rtc_probe);
-+}
-+module_init(retu_rtc_init);
-+
-+static void __exit retu_rtc_exit(void)
-+{
-+ platform_driver_unregister(&retu_rtc_driver);
-+}
-+module_exit(retu_rtc_exit);
-+
-+MODULE_DESCRIPTION("Retu RTC");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Paul Mundt");
-+MODULE_AUTHOR("Igor Stoppa");
-+MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
-+
---- /dev/null
-+++ b/drivers/cbus/retu-wdt.c
-@@ -0,0 +1,272 @@
-+/**
-+ * drivers/cbus/retu-wdt.c
-+ *
-+ * Driver for Retu watchdog
-+ *
-+ * Copyright (C) 2004, 2005 Nokia Corporation
-+ *
-+ * Written by Amit Kucheria <amit.kucheria@nokia.com>
-+ *
-+ * Cleanups by Michael Buesch <mb@bu3sch.de> (C) 2011
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/slab.h>
-+#include <linux/module.h>
-+#include <linux/device.h>
-+#include <linux/init.h>
-+#include <linux/fs.h>
-+#include <linux/io.h>
-+#include <linux/platform_device.h>
-+
-+#include <linux/completion.h>
-+#include <linux/errno.h>
-+#include <linux/moduleparam.h>
-+#include <linux/miscdevice.h>
-+#include <linux/watchdog.h>
-+
-+#include <asm/uaccess.h>
-+
-+#include <plat/prcm.h>
-+
-+#include "cbus.h"
-+#include "retu.h"
-+
-+/* Watchdog timeout in seconds */
-+#define RETU_WDT_MIN_TIMER 0
-+#define RETU_WDT_DEFAULT_TIMER 32
-+#define RETU_WDT_MAX_TIMER 63
-+
-+struct retu_wdt_dev {
-+ struct device *dev;
-+ unsigned int period_val; /* Current period of watchdog */
-+ unsigned long users;
-+ struct miscdevice miscdev;
-+ struct delayed_work ping_work;
-+ struct mutex mutex;
-+};
-+
-+
-+static inline void _retu_modify_counter(struct retu_wdt_dev *wdev,
-+ unsigned int new)
-+{
-+ retu_write_reg(wdev->dev, RETU_REG_WATCHDOG, (u16)new);
-+}
-+
-+static int retu_modify_counter(struct retu_wdt_dev *wdev, unsigned int new)
-+{
-+ if (new < RETU_WDT_MIN_TIMER || new > RETU_WDT_MAX_TIMER)
-+ return -EINVAL;
-+
-+ mutex_lock(&wdev->mutex);
-+ wdev->period_val = new;
-+ _retu_modify_counter(wdev, wdev->period_val);
-+ mutex_unlock(&wdev->mutex);
-+
-+ return 0;
-+}
-+
-+/*
-+ * Since retu watchdog cannot be disabled in hardware, we must kick it
-+ * with a timer until userspace watchdog software takes over. Do this
-+ * unless /dev/watchdog is open or CONFIG_WATCHDOG_NOWAYOUT is set.
-+ */
-+static void retu_wdt_ping_enable(struct retu_wdt_dev *wdev)
-+{
-+ _retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
-+ schedule_delayed_work(&wdev->ping_work,
-+ round_jiffies_relative(RETU_WDT_DEFAULT_TIMER * HZ));
-+}
-+
-+static void retu_wdt_ping_disable(struct retu_wdt_dev *wdev)
-+{
-+ _retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
-+ cancel_delayed_work_sync(&wdev->ping_work);
-+}
-+
-+static void retu_wdt_ping_work(struct work_struct *work)
-+{
-+ struct retu_wdt_dev *wdev = container_of(to_delayed_work(work),
-+ struct retu_wdt_dev, ping_work);
-+ retu_wdt_ping_enable(wdev);
-+}
-+
-+static int retu_wdt_open(struct inode *inode, struct file *file)
-+{
-+ struct miscdevice *mdev = file->private_data;
-+ struct retu_wdt_dev *wdev = container_of(mdev, struct retu_wdt_dev, miscdev);
-+
-+ if (test_and_set_bit(0, &wdev->users))
-+ return -EBUSY;
-+
-+ retu_wdt_ping_disable(wdev);
-+
-+ return nonseekable_open(inode, file);
-+}
-+
-+static int retu_wdt_release(struct inode *inode, struct file *file)
-+{
-+ struct miscdevice *mdev = file->private_data;
-+ struct retu_wdt_dev *wdev = container_of(mdev, struct retu_wdt_dev, miscdev);
-+
-+#ifndef CONFIG_WATCHDOG_NOWAYOUT
-+ retu_wdt_ping_enable(wdev);
-+#endif
-+ clear_bit(0, &wdev->users);
-+
-+ return 0;
-+}
-+
-+static ssize_t retu_wdt_write(struct file *file, const char __user *data,
-+ size_t len, loff_t *ppos)
-+{
-+ struct miscdevice *mdev = file->private_data;
-+ struct retu_wdt_dev *wdev = container_of(mdev, struct retu_wdt_dev, miscdev);
-+
-+ if (len)
-+ retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
-+
-+ return len;
-+}
-+
-+static long retu_wdt_ioctl(struct file *file, unsigned int cmd,
-+ unsigned long arg)
-+{
-+ struct miscdevice *mdev = file->private_data;
-+ struct retu_wdt_dev *wdev = container_of(mdev, struct retu_wdt_dev, miscdev);
-+ int new_margin;
-+
-+ static const struct watchdog_info ident = {
-+ .identity = "Retu Watchdog",
-+ .options = WDIOF_SETTIMEOUT,
-+ .firmware_version = 0,
-+ };
-+
-+ switch (cmd) {
-+ default:
-+ return -ENOTTY;
-+ case WDIOC_GETSUPPORT:
-+ return copy_to_user((struct watchdog_info __user *)arg, &ident,
-+ sizeof(ident));
-+ case WDIOC_GETSTATUS:
-+ return put_user(0, (int __user *)arg);
-+ case WDIOC_GETBOOTSTATUS:
-+ if (cpu_is_omap16xx())
-+ return put_user(omap_readw(ARM_SYSST),
-+ (int __user *)arg);
-+ if (cpu_is_omap24xx())
-+ return put_user(omap_prcm_get_reset_sources(),
-+ (int __user *)arg);
-+ case WDIOC_KEEPALIVE:
-+ retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
-+ break;
-+ case WDIOC_SETTIMEOUT:
-+ if (get_user(new_margin, (int __user *)arg))
-+ return -EFAULT;
-+ retu_modify_counter(wdev, new_margin);
-+ /* Fall through */
-+ case WDIOC_GETTIMEOUT:
-+ return put_user(wdev->period_val, (int __user *)arg);
-+ }
-+
-+ return 0;
-+}
-+
-+static const struct file_operations retu_wdt_fops = {
-+ .owner = THIS_MODULE,
-+ .write = retu_wdt_write,
-+ .unlocked_ioctl = retu_wdt_ioctl,
-+ .open = retu_wdt_open,
-+ .release = retu_wdt_release,
-+};
-+
-+static int __init retu_wdt_probe(struct platform_device *pdev)
-+{
-+ struct retu_wdt_dev *wdev;
-+ int ret;
-+
-+ wdev = kzalloc(sizeof(struct retu_wdt_dev), GFP_KERNEL);
-+ if (!wdev)
-+ return -ENOMEM;
-+
-+ wdev->dev = &pdev->dev;
-+ wdev->period_val = RETU_WDT_DEFAULT_TIMER;
-+ mutex_init(&wdev->mutex);
-+
-+ platform_set_drvdata(pdev, wdev);
-+
-+ wdev->miscdev.parent = &pdev->dev;
-+ wdev->miscdev.minor = WATCHDOG_MINOR;
-+ wdev->miscdev.name = "watchdog";
-+ wdev->miscdev.fops = &retu_wdt_fops;
-+
-+ ret = misc_register(&wdev->miscdev);
-+ if (ret)
-+ goto err_free_wdev;
-+
-+ INIT_DELAYED_WORK(&wdev->ping_work, retu_wdt_ping_work);
-+
-+ /* Kick the watchdog for kernel booting to finish.
-+ * If nowayout is not set, we start the ping work. */
-+#ifdef CONFIG_WATCHDOG_NOWAYOUT
-+ retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
-+#else
-+ retu_wdt_ping_enable(wdev);
-+#endif
-+
-+ return 0;
-+
-+err_free_wdev:
-+ kfree(wdev);
-+
-+ return ret;
-+}
-+
-+static int __devexit retu_wdt_remove(struct platform_device *pdev)
-+{
-+ struct retu_wdt_dev *wdev;
-+
-+ wdev = platform_get_drvdata(pdev);
-+ misc_deregister(&wdev->miscdev);
-+ cancel_delayed_work_sync(&wdev->ping_work);
-+ kfree(wdev);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver retu_wdt_driver = {
-+ .remove = __exit_p(retu_wdt_remove),
-+ .driver = {
-+ .name = "retu-wdt",
-+ },
-+};
-+
-+static int __init retu_wdt_init(void)
-+{
-+ return platform_driver_probe(&retu_wdt_driver, retu_wdt_probe);
-+}
-+
-+static void __exit retu_wdt_exit(void)
-+{
-+ platform_driver_unregister(&retu_wdt_driver);
-+}
-+
-+module_init(retu_wdt_init);
-+module_exit(retu_wdt_exit);
-+
-+MODULE_DESCRIPTION("Retu WatchDog");
-+MODULE_AUTHOR("Amit Kucheria");
-+MODULE_LICENSE("GPL");
---- /dev/null
-+++ b/drivers/cbus/tahvo.c
-@@ -0,0 +1,423 @@
-+/**
-+ * drivers/cbus/tahvo.c
-+ *
-+ * Support functions for Tahvo ASIC
-+ *
-+ * Copyright (C) 2004, 2005 Nokia Corporation
-+ *
-+ * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
-+ * David Weinehall <david.weinehall@nokia.com>, and
-+ * Mikko Ylinen <mikko.k.ylinen@nokia.com>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/init.h>
-+
-+#include <linux/slab.h>
-+#include <linux/kernel.h>
-+#include <linux/errno.h>
-+#include <linux/device.h>
-+#include <linux/irq.h>
-+#include <linux/interrupt.h>
-+#include <linux/platform_device.h>
-+#include <linux/platform_data/cbus.h>
-+#include <linux/mutex.h>
-+
-+#include "cbus.h"
-+#include "tahvo.h"
-+
-+struct tahvo {
-+ /* device lock */
-+ struct mutex mutex;
-+ struct device *dev;
-+
-+ int irq_base;
-+ int irq_end;
-+ int irq;
-+
-+ int ack;
-+ int mask;
-+
-+ unsigned int mask_pending:1;
-+ unsigned int ack_pending:1;
-+ unsigned int is_betty:1;
-+};
-+
-+/**
-+ * __tahvo_read_reg - Reads a value from a register in Tahvo
-+ * @tahvo: pointer to tahvo structure
-+ * @reg: the register address to read from
-+ */
-+static int __tahvo_read_reg(struct tahvo *tahvo, unsigned reg)
-+{
-+ return cbus_read_reg(tahvo->dev, CBUS_TAHVO_DEVICE_ID, reg);
-+}
-+
-+/**
-+ * __tahvo_write_reg - Writes a value to a register in Tahvo
-+ * @tahvo: pointer to tahvo structure
-+ * @reg: register address to write to
-+ * @val: the value to be written to @reg
-+ */
-+static void __tahvo_write_reg(struct tahvo *tahvo, unsigned reg, u16 val)
-+{
-+ cbus_write_reg(tahvo->dev, CBUS_TAHVO_DEVICE_ID, reg, val);
-+}
-+
-+/**
-+ * tahvo_read_reg - Read a value from a register in Tahvo
-+ * @child: device pointer from the calling child
-+ * @reg: the register to read from
-+ *
-+ * This function returns the contents of the specified register
-+ */
-+int tahvo_read_reg(struct device *child, unsigned reg)
-+{
-+ struct tahvo *tahvo = dev_get_drvdata(child->parent);
-+
-+ return __tahvo_read_reg(tahvo, reg);
-+}
-+EXPORT_SYMBOL(tahvo_read_reg);
-+
-+/**
-+ * tahvo_write_reg - Write a value to a register in Tahvo
-+ * @child: device pointer from the calling child
-+ * @reg: the register to write to
-+ * @val : the value to write to the register
-+ *
-+ * This function writes a value to the specified register
-+ */
-+void tahvo_write_reg(struct device *child, unsigned reg, u16 val)
-+{
-+ struct tahvo *tahvo = dev_get_drvdata(child->parent);
-+
-+ __tahvo_write_reg(tahvo, reg, val);
-+}
-+EXPORT_SYMBOL(tahvo_write_reg);
-+
-+/**
-+ * tahvo_set_clear_reg_bits - set and clear register bits atomically
-+ * @child: device pointer from the calling child
-+ * @reg: the register to write to
-+ * @bits: the bits to set
-+ *
-+ * This function sets and clears the specified Tahvo register bits atomically
-+ */
-+void tahvo_set_clear_reg_bits(struct device *child, unsigned reg, u16 set,
-+ u16 clear)
-+{
-+ struct tahvo *tahvo = dev_get_drvdata(child->parent);
-+ u16 w;
-+
-+ mutex_lock(&tahvo->mutex);
-+ w = __tahvo_read_reg(tahvo, reg);
-+ w &= ~clear;
-+ w |= set;
-+ __tahvo_write_reg(tahvo, reg, w);
-+ mutex_unlock(&tahvo->mutex);
-+}
-+
-+static irqreturn_t tahvo_irq_handler(int irq, void *_tahvo)
-+{
-+ struct tahvo *tahvo = _tahvo;
-+ u16 id;
-+ u16 im;
-+
-+ id = __tahvo_read_reg(tahvo, TAHVO_REG_IDR);
-+ im = __tahvo_read_reg(tahvo, TAHVO_REG_IMR);
-+ id &= ~im;
-+
-+ if (!id) {
-+ dev_vdbg(tahvo->dev, "No IRQ, spurious ?\n");
-+ return IRQ_NONE;
-+ }
-+
-+ while (id) {
-+ unsigned long pending = __ffs(id);
-+ unsigned int irq;
-+
-+ id &= ~BIT(pending);
-+ irq = pending + tahvo->irq_base;
-+ handle_nested_irq(irq);
-+ }
-+
-+ return IRQ_HANDLED;
-+}
-+
-+/* -------------------------------------------------------------------------- */
-+
-+static void tahvo_irq_bus_lock(struct irq_data *data)
-+{
-+ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
-+
-+ mutex_lock(&tahvo->mutex);
-+}
-+
-+static void tahvo_irq_bus_sync_unlock(struct irq_data *data)
-+{
-+ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
-+
-+ if (tahvo->mask_pending) {
-+ __tahvo_write_reg(tahvo, TAHVO_REG_IMR, tahvo->mask);
-+ tahvo->mask_pending = false;
-+ }
-+
-+ if (tahvo->ack_pending) {
-+ __tahvo_write_reg(tahvo, TAHVO_REG_IDR, tahvo->ack);
-+ tahvo->ack_pending = false;
-+ }
-+
-+ mutex_unlock(&tahvo->mutex);
-+}
-+
-+static void tahvo_irq_mask(struct irq_data *data)
-+{
-+ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
-+ int irq = data->irq;
-+
-+ tahvo->mask |= (1 << (irq - tahvo->irq_base));
-+ tahvo->mask_pending = true;
-+}
-+
-+static void tahvo_irq_unmask(struct irq_data *data)
-+{
-+ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
-+ int irq = data->irq;
-+
-+ tahvo->mask &= ~(1 << (irq - tahvo->irq_base));
-+ tahvo->mask_pending = true;
-+}
-+
-+static void tahvo_irq_ack(struct irq_data *data)
-+{
-+ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
-+ int irq = data->irq;
-+
-+ tahvo->ack |= (1 << (irq - tahvo->irq_base));
-+ tahvo->ack_pending = true;
-+}
-+
-+static struct irq_chip tahvo_irq_chip = {
-+ .name = "tahvo",
-+ .irq_bus_lock = tahvo_irq_bus_lock,
-+ .irq_bus_sync_unlock = tahvo_irq_bus_sync_unlock,
-+ .irq_mask = tahvo_irq_mask,
-+ .irq_unmask = tahvo_irq_unmask,
-+ .irq_ack = tahvo_irq_ack,
-+};
-+
-+static inline void tahvo_irq_setup(int irq)
-+{
-+#ifdef CONFIG_ARM
-+ set_irq_flags(irq, IRQF_VALID);
-+#else
-+ irq_set_noprobe(irq);
-+#endif
-+}
-+
-+static void tahvo_irq_init(struct tahvo *tahvo)
-+{
-+ int base = tahvo->irq_base;
-+ int end = tahvo->irq_end;
-+ int irq;
-+
-+ for (irq = base; irq < end; irq++) {
-+ irq_set_chip_data(irq, tahvo);
-+ irq_set_chip_and_handler(irq, &tahvo_irq_chip,
-+ handle_simple_irq);
-+ irq_set_nested_thread(irq, 1);
-+ tahvo_irq_setup(irq);
-+ }
-+}
-+
-+/* -------------------------------------------------------------------------- */
-+
-+static struct resource generic_resources[] = {
-+ {
-+ .start = -EINVAL, /* fixed later */
-+ .flags = IORESOURCE_IRQ,
-+ },
-+};
-+
-+static struct device *tahvo_allocate_child(const char *name,
-+ struct device *parent, int irq)
-+{
-+ struct platform_device *pdev;
-+ int ret;
-+
-+ pdev = platform_device_alloc(name, -1);
-+ if (!pdev) {
-+ dev_dbg(parent, "can't allocate %s\n", name);
-+ goto err0;
-+ }
-+
-+ pdev->dev.parent = parent;
-+
-+ if (irq > 0) {
-+ generic_resources[0].start = irq;
-+
-+ ret = platform_device_add_resources(pdev, generic_resources,
-+ ARRAY_SIZE(generic_resources));
-+ if (ret < 0) {
-+ dev_dbg(parent, "can't add resources to %s\n", name);
-+ goto err1;
-+ }
-+ }
-+
-+ ret = platform_device_add(pdev);
-+ if (ret < 0) {
-+ dev_dbg(parent, "can't add %s\n", name);
-+ goto err1;
-+ }
-+
-+ return &pdev->dev;
-+
-+err1:
-+ platform_device_put(pdev);
-+
-+err0:
-+ return NULL;
-+}
-+
-+static int tahvo_allocate_children(struct device *parent, int irq_base)
-+{
-+ struct device *child;
-+
-+ child = tahvo_allocate_child("tahvo-usb", parent,
-+ irq_base + TAHVO_INT_VBUSON);
-+ if (!child)
-+ return -ENOMEM;
-+
-+ child = tahvo_allocate_child("tahvo-pwm", parent, -1);
-+ if (!child)
-+ return -ENOMEM;
-+
-+ return 0;
-+}
-+
-+static int __devinit tahvo_probe(struct platform_device *pdev)
-+{
-+ struct tahvo *tahvo;
-+ int rev;
-+ int ret;
-+ int irq;
-+ int id;
-+
-+ tahvo = kzalloc(sizeof(*tahvo), GFP_KERNEL);
-+ if (!tahvo) {
-+ dev_err(&pdev->dev, "not enough memory\n");
-+ ret = -ENOMEM;
-+ goto err0;
-+ }
-+
-+ irq = platform_get_irq(pdev, 0);
-+ platform_set_drvdata(pdev, tahvo);
-+
-+ mutex_init(&tahvo->mutex);
-+
-+ ret = irq_alloc_descs(-1, 0, MAX_TAHVO_IRQ_HANDLERS, 0);
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "failed to allocate IRQ descs\n");
-+ goto err1;
-+ }
-+
-+ tahvo->irq_base = ret;
-+ tahvo->irq_end = ret + MAX_TAHVO_IRQ_HANDLERS;
-+ tahvo->dev = &pdev->dev;
-+ tahvo->irq = irq;
-+
-+ tahvo_irq_init(tahvo);
-+
-+ rev = __tahvo_read_reg(tahvo, TAHVO_REG_ASICR);
-+
-+ id = (rev >> 8) & 0xff;
-+
-+ if (id == 0x0b)
-+ tahvo->is_betty = true;
-+
-+ ret = tahvo_allocate_children(&pdev->dev, tahvo->irq_base);
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "failed to allocate children\n");
-+ goto err2;
-+ }
-+
-+ dev_err(&pdev->dev, "%s v%d.%d found\n",
-+ tahvo->is_betty ? "Betty" : "Tahvo",
-+ (rev >> 4) & 0x0f, rev & 0x0f);
-+
-+ /* Mask all TAHVO interrupts */
-+ __tahvo_write_reg(tahvo, TAHVO_REG_IMR, 0xffff);
-+
-+ ret = request_threaded_irq(irq, NULL, tahvo_irq_handler,
-+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-+ "tahvo", tahvo);
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "Unable to register IRQ handler\n");
-+ goto err2;
-+ }
-+
-+ return 0;
-+
-+err2:
-+ irq_free_descs(tahvo->irq_base, MAX_TAHVO_IRQ_HANDLERS);
-+
-+err1:
-+ kfree(tahvo);
-+
-+err0:
-+ return ret;
-+}
-+
-+static int __devexit tahvo_remove(struct platform_device *pdev)
-+{
-+ struct tahvo *tahvo = platform_get_drvdata(pdev);
-+ int irq;
-+
-+ irq = platform_get_irq(pdev, 0);
-+
-+ free_irq(irq, 0);
-+ irq_free_descs(tahvo->irq_base, MAX_TAHVO_IRQ_HANDLERS);
-+ kfree(tahvo);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver tahvo_driver = {
-+ .probe = tahvo_probe,
-+ .remove = __devexit_p(tahvo_remove),
-+ .driver = {
-+ .name = "tahvo",
-+ },
-+};
-+
-+static int __init tahvo_init(void)
-+{
-+ return platform_driver_register(&tahvo_driver);
-+}
-+subsys_initcall(tahvo_init);
-+
-+static void __exit tahvo_exit(void)
-+{
-+ platform_driver_unregister(&tahvo_driver);
-+}
-+module_exit(tahvo_exit);
-+
-+MODULE_DESCRIPTION("Tahvo ASIC control");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Juha Yrjölä");
-+MODULE_AUTHOR("David Weinehall");
-+MODULE_AUTHOR("Mikko Ylinen");
-+
---- /dev/null
-+++ b/drivers/cbus/tahvo.h
-@@ -0,0 +1,58 @@
-+/*
-+ * drivers/cbus/tahvo.h
-+ *
-+ * Copyright (C) 2004, 2005 Nokia Corporation
-+ *
-+ * Written by Juha Yrjölä <juha.yrjola@nokia.com> and
-+ * David Weinehall <david.weinehall@nokia.com>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#ifndef __DRIVERS_CBUS_TAHVO_H
-+#define __DRIVERS_CBUS_TAHVO_H
-+
-+#include <linux/types.h>
-+
-+/* Registers */
-+#define TAHVO_REG_ASICR 0x00 /* ASIC ID & revision */
-+#define TAHVO_REG_IDR 0x01 /* Interrupt ID */
-+#define TAHVO_REG_IDSR 0x02 /* Interrupt status */
-+#define TAHVO_REG_IMR 0x03 /* Interrupt mask */
-+#define TAHVO_REG_CHGCURR 0x04 /* Charge current control PWM (8-bit) */
-+#define TAHVO_REG_LEDPWMR 0x05 /* LED PWM */
-+#define TAHVO_REG_USBR 0x06 /* USB control */
-+#define TAHVO_REG_CHGCTL 0x08 /* Charge control register */
-+#define TAHVO_REG_CHGCTL_EN 0x0001 /* Global charge enable */
-+#define TAHVO_REG_CHGCTL_PWMOVR 0x0004 /* PWM override. Force charge PWM to 0%/100% duty cycle. */
-+#define TAHVO_REG_CHGCTL_PWMOVRZERO 0x0008 /* If set, PWM override is 0% (If unset -> 100%) */
-+#define TAHVO_REG_CHGCTL_CURMEAS 0x0040 /* Enable battery current measurement. */
-+#define TAHVO_REG_CHGCTL_CURTIMRST 0x0080 /* Current measure timer reset. */
-+#define TAHVO_REG_BATCURRTIMER 0x0c /* Battery current measure timer (8-bit) */
-+#define TAHVO_REG_BATCURR 0x0d /* Battery (dis)charge current (signed 16-bit) */
-+
-+#define TAHVO_REG_MAX 0x0d
-+
-+/* Interrupt sources */
-+#define TAHVO_INT_VBUSON 0
-+#define TAHVO_INT_BATCURR 7 /* Battery current measure timer */
-+
-+#define MAX_TAHVO_IRQ_HANDLERS 8
-+
-+int tahvo_read_reg(struct device *child, unsigned reg);
-+void tahvo_write_reg(struct device *child, unsigned reg, u16 val);
-+void tahvo_set_clear_reg_bits(struct device *child, unsigned reg, u16 set,
-+ u16 clear);
-+
-+#endif /* __DRIVERS_CBUS_TAHVO_H */
---- /dev/null
-+++ b/drivers/cbus/tahvo-usb.c
-@@ -0,0 +1,740 @@
-+/**
-+ * drivers/cbus/tahvo-usb.c
-+ *
-+ * Tahvo USB transeiver
-+ *
-+ * Copyright (C) 2005-2006 Nokia Corporation
-+ *
-+ * Parts copied from drivers/i2c/chips/isp1301_omap.c
-+ * Copyright (C) 2004 Texas Instruments
-+ * Copyright (C) 2004 David Brownell
-+ *
-+ * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
-+ * Tony Lindgren <tony@atomide.com>, and
-+ * Timo Teräs <timo.teras@nokia.com>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/slab.h>
-+#include <linux/io.h>
-+#include <linux/interrupt.h>
-+#include <linux/platform_device.h>
-+#include <linux/usb/ch9.h>
-+#include <linux/usb/gadget.h>
-+#include <linux/usb.h>
-+#include <linux/usb/otg.h>
-+#include <linux/i2c.h>
-+#include <linux/workqueue.h>
-+#include <linux/kobject.h>
-+#include <linux/clk.h>
-+#include <linux/mutex.h>
-+
-+#include <asm/irq.h>
-+#include <plat/usb.h>
-+
-+#include "cbus.h"
-+#include "tahvo.h"
-+
-+#define DRIVER_NAME "tahvo-usb"
-+
-+#define USBR_SLAVE_CONTROL (1 << 8)
-+#define USBR_VPPVIO_SW (1 << 7)
-+#define USBR_SPEED (1 << 6)
-+#define USBR_REGOUT (1 << 5)
-+#define USBR_MASTER_SW2 (1 << 4)
-+#define USBR_MASTER_SW1 (1 << 3)
-+#define USBR_SLAVE_SW (1 << 2)
-+#define USBR_NSUSPEND (1 << 1)
-+#define USBR_SEMODE (1 << 0)
-+
-+/* bits in OTG_CTRL */
-+
-+/* Bits that are controlled by OMAP OTG and are read-only */
-+#define OTG_CTRL_OMAP_MASK (OTG_PULLDOWN|OTG_PULLUP|OTG_DRV_VBUS|\
-+ OTG_PD_VBUS|OTG_PU_VBUS|OTG_PU_ID)
-+/* Bits that are controlled by transceiver */
-+#define OTG_CTRL_XCVR_MASK (OTG_ASESSVLD|OTG_BSESSEND|\
-+ OTG_BSESSVLD|OTG_VBUSVLD|OTG_ID)
-+/* Bits that are controlled by system */
-+#define OTG_CTRL_SYS_MASK (OTG_A_BUSREQ|OTG_A_SETB_HNPEN|OTG_B_BUSREQ|\
-+ OTG_B_HNPEN|OTG_BUSDROP)
-+
-+#if defined(CONFIG_USB_OHCI_HCD) && !defined(CONFIG_USB_OTG)
-+#error tahvo-otg.c does not work with OCHI yet!
-+#endif
-+
-+#define TAHVO_MODE_HOST 0
-+#define TAHVO_MODE_PERIPHERAL 1
-+
-+#ifdef CONFIG_USB_OTG
-+#define TAHVO_MODE(tu) (tu)->tahvo_mode
-+#elif defined(CONFIG_USB_GADGET_OMAP)
-+#define TAHVO_MODE(tu) TAHVO_MODE_PERIPHERAL
-+#else
-+#define TAHVO_MODE(tu) TAHVO_MODE_HOST
-+#endif
-+
-+struct tahvo_usb {
-+ struct device *dev;
-+ struct platform_device *pt_dev;
-+ struct otg_transceiver otg;
-+ int vbus_state;
-+ struct mutex serialize;
-+#ifdef CONFIG_USB_OTG
-+ int tahvo_mode;
-+#endif
-+ struct clk *ick;
-+
-+ int irq;
-+};
-+static struct tahvo_usb *tahvo_usb_device;
-+
-+/*
-+ * ---------------------------------------------------------------------------
-+ * OTG related functions
-+ *
-+ * These shoud be separated into omap-otg.c driver module, as they are used
-+ * by various transceivers. These functions are needed in the UDC-only case
-+ * as well. These functions are copied from GPL isp1301_omap.c
-+ * ---------------------------------------------------------------------------
-+ */
-+static struct platform_device *tahvo_otg_dev;
-+
-+static irqreturn_t omap_otg_irq(int irq, void *arg)
-+{
-+ u16 otg_irq;
-+
-+ otg_irq = omap_readw(OTG_IRQ_SRC);
-+ if (otg_irq & OPRT_CHG) {
-+ omap_writew(OPRT_CHG, OTG_IRQ_SRC);
-+ } else if (otg_irq & B_SRP_TMROUT) {
-+ omap_writew(B_SRP_TMROUT, OTG_IRQ_SRC);
-+ } else if (otg_irq & B_HNP_FAIL) {
-+ omap_writew(B_HNP_FAIL, OTG_IRQ_SRC);
-+ } else if (otg_irq & A_SRP_DETECT) {
-+ omap_writew(A_SRP_DETECT, OTG_IRQ_SRC);
-+ } else if (otg_irq & A_REQ_TMROUT) {
-+ omap_writew(A_REQ_TMROUT, OTG_IRQ_SRC);
-+ } else if (otg_irq & A_VBUS_ERR) {
-+ omap_writew(A_VBUS_ERR, OTG_IRQ_SRC);
-+ } else if (otg_irq & DRIVER_SWITCH) {
-+#ifdef CONFIG_USB_OTG
-+ if ((!(omap_readl(OTG_CTRL) & OTG_DRIVER_SEL)) &&
-+ tu->otg.host && tu->otg.state == OTG_STATE_A_HOST) {
-+ /* role is host */
-+ usb_bus_start_enum(tu->otg.host,
-+ tu->otg.host->otg_port);
-+ }
-+#endif
-+ omap_writew(DRIVER_SWITCH, OTG_IRQ_SRC);
-+ } else
-+ return IRQ_NONE;
-+
-+ return IRQ_HANDLED;
-+
-+}
-+
-+static int tahvo_otg_init(void)
-+{
-+ u32 l;
-+
-+#ifdef CONFIG_USB_OTG
-+ if (!tahvo_otg_dev) {
-+ printk("tahvo-usb: no tahvo_otg_dev\n");
-+ return -ENODEV;
-+ }
-+#endif
-+
-+ l = omap_readl(OTG_SYSCON_1);
-+ l &= ~OTG_IDLE_EN;
-+ omap_writel(l, OTG_SYSCON_1);
-+ udelay(100);
-+
-+ /* some of these values are board-specific... */
-+ l = omap_readl(OTG_SYSCON_2);
-+ l |= OTG_EN
-+ /* for B-device: */
-+ | SRP_GPDATA /* 9msec Bdev D+ pulse */
-+ | SRP_GPDVBUS /* discharge after VBUS pulse */
-+ // | (3 << 24) /* 2msec VBUS pulse */
-+ /* for A-device: */
-+ | (0 << 20) /* 200ms nominal A_WAIT_VRISE timer */
-+ | SRP_DPW /* detect 167+ns SRP pulses */
-+ | SRP_DATA | SRP_VBUS; /* accept both kinds of SRP pulse */
-+ omap_writel(l, OTG_SYSCON_2);
-+
-+ omap_writew(DRIVER_SWITCH | OPRT_CHG
-+ | B_SRP_TMROUT | B_HNP_FAIL
-+ | A_VBUS_ERR | A_SRP_DETECT | A_REQ_TMROUT,
-+ OTG_IRQ_EN);
-+ l = omap_readl(OTG_SYSCON_2);
-+ l |= OTG_EN;
-+ omap_writel(l, OTG_SYSCON_2);
-+
-+ return 0;
-+}
-+
-+static int __init omap_otg_probe(struct platform_device *pdev)
-+{
-+ int ret;
-+
-+ tahvo_otg_dev = pdev;
-+ ret = tahvo_otg_init();
-+ if (ret != 0) {
-+ printk(KERN_ERR "tahvo-usb: tahvo_otg_init failed\n");
-+ return ret;
-+ }
-+
-+ return request_irq(tahvo_otg_dev->resource[1].start,
-+ omap_otg_irq, IRQF_DISABLED, DRIVER_NAME,
-+ tahvo_usb_device);
-+}
-+
-+static int __exit omap_otg_remove(struct platform_device *pdev)
-+{
-+ free_irq(tahvo_otg_dev->resource[1].start, tahvo_usb_device);
-+ tahvo_otg_dev = NULL;
-+
-+ return 0;
-+}
-+
-+struct platform_driver omap_otg_driver = {
-+ .driver = {
-+ .name = "omap_otg",
-+ },
-+ .remove = __exit_p(omap_otg_remove),
-+};
-+
-+/*
-+ * ---------------------------------------------------------------------------
-+ * Tahvo related functions
-+ * These are Nokia proprietary code, except for the OTG register settings,
-+ * which are copied from isp1301.c
-+ * ---------------------------------------------------------------------------
-+ */
-+static ssize_t vbus_state_show(struct device *device,
-+ struct device_attribute *attr, char *buf)
-+{
-+ struct tahvo_usb *tu = dev_get_drvdata(device);
-+ return sprintf(buf, "%d\n", tu->vbus_state);
-+}
-+static DEVICE_ATTR(vbus_state, 0444, vbus_state_show, NULL);
-+
-+int vbus_active = 0;
-+
-+static void check_vbus_state(struct tahvo_usb *tu)
-+{
-+ int reg, prev_state;
-+
-+ reg = tahvo_read_reg(tu->dev, TAHVO_REG_IDSR);
-+ if (reg & 0x01) {
-+ u32 l;
-+
-+ vbus_active = 1;
-+ switch (tu->otg.state) {
-+ case OTG_STATE_B_IDLE:
-+ /* Enable the gadget driver */
-+ if (tu->otg.gadget)
-+ usb_gadget_vbus_connect(tu->otg.gadget);
-+ /* Set B-session valid and not B-sessio ended to indicate
-+ * Vbus to be ok. */
-+ l = omap_readl(OTG_CTRL);
-+ l &= ~OTG_BSESSEND;
-+ l |= OTG_BSESSVLD;
-+ omap_writel(l, OTG_CTRL);
-+
-+ tu->otg.state = OTG_STATE_B_PERIPHERAL;
-+ break;
-+ case OTG_STATE_A_IDLE:
-+ /* Session is now valid assuming the USB hub is driving Vbus */
-+ tu->otg.state = OTG_STATE_A_HOST;
-+ break;
-+ default:
-+ break;
-+ }
-+ printk("USB cable connected\n");
-+ } else {
-+ switch (tu->otg.state) {
-+ case OTG_STATE_B_PERIPHERAL:
-+ if (tu->otg.gadget)
-+ usb_gadget_vbus_disconnect(tu->otg.gadget);
-+ tu->otg.state = OTG_STATE_B_IDLE;
-+ break;
-+ case OTG_STATE_A_HOST:
-+ tu->otg.state = OTG_STATE_A_IDLE;
-+ break;
-+ default:
-+ break;
-+ }
-+ printk("USB cable disconnected\n");
-+ vbus_active = 0;
-+ }
-+
-+ prev_state = tu->vbus_state;
-+ tu->vbus_state = reg & 0x01;
-+ if (prev_state != tu->vbus_state)
-+ sysfs_notify(&tu->pt_dev->dev.kobj, NULL, "vbus_state");
-+}
-+
-+static void tahvo_usb_become_host(struct tahvo_usb *tu)
-+{
-+ u32 l;
-+
-+ /* Clear system and transceiver controlled bits
-+ * also mark the A-session is always valid */
-+ tahvo_otg_init();
-+
-+ l = omap_readl(OTG_CTRL);
-+ l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK);
-+ l |= OTG_ASESSVLD;
-+ omap_writel(l, OTG_CTRL);
-+
-+ /* Power up the transceiver in USB host mode */
-+ tahvo_write_reg(tu->dev, TAHVO_REG_USBR, USBR_REGOUT | USBR_NSUSPEND |
-+ USBR_MASTER_SW2 | USBR_MASTER_SW1);
-+ tu->otg.state = OTG_STATE_A_IDLE;
-+
-+ check_vbus_state(tu);
-+}
-+
-+static void tahvo_usb_stop_host(struct tahvo_usb *tu)
-+{
-+ tu->otg.state = OTG_STATE_A_IDLE;
-+}
-+
-+static void tahvo_usb_become_peripheral(struct tahvo_usb *tu)
-+{
-+ u32 l;
-+
-+ /* Clear system and transceiver controlled bits
-+ * and enable ID to mark peripheral mode and
-+ * BSESSEND to mark no Vbus */
-+ tahvo_otg_init();
-+ l = omap_readl(OTG_CTRL);
-+ l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK | OTG_BSESSVLD);
-+ l |= OTG_ID | OTG_BSESSEND;
-+ omap_writel(l, OTG_CTRL);
-+
-+ /* Power up transceiver and set it in USB perhiperal mode */
-+ tahvo_write_reg(tu->dev, TAHVO_REG_USBR, USBR_SLAVE_CONTROL | USBR_REGOUT | USBR_NSUSPEND | USBR_SLAVE_SW);
-+ tu->otg.state = OTG_STATE_B_IDLE;
-+
-+ check_vbus_state(tu);
-+}
-+
-+static void tahvo_usb_stop_peripheral(struct tahvo_usb *tu)
-+{
-+ u32 l;
-+
-+ l = omap_readl(OTG_CTRL);
-+ l &= ~OTG_BSESSVLD;
-+ l |= OTG_BSESSEND;
-+ omap_writel(l, OTG_CTRL);
-+
-+ if (tu->otg.gadget)
-+ usb_gadget_vbus_disconnect(tu->otg.gadget);
-+ tu->otg.state = OTG_STATE_B_IDLE;
-+
-+}
-+
-+static void tahvo_usb_power_off(struct tahvo_usb *tu)
-+{
-+ u32 l;
-+ int id;
-+
-+ /* Disable gadget controller if any */
-+ if (tu->otg.gadget)
-+ usb_gadget_vbus_disconnect(tu->otg.gadget);
-+
-+ /* Disable OTG and interrupts */
-+ if (TAHVO_MODE(tu) == TAHVO_MODE_PERIPHERAL)
-+ id = OTG_ID;
-+ else
-+ id = 0;
-+ l = omap_readl(OTG_CTRL);
-+ l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK | OTG_BSESSVLD);
-+ l |= id | OTG_BSESSEND;
-+ omap_writel(l, OTG_CTRL);
-+ omap_writew(0, OTG_IRQ_EN);
-+
-+ l = omap_readl(OTG_SYSCON_2);
-+ l &= ~OTG_EN;
-+ omap_writel(l, OTG_SYSCON_2);
-+
-+ l = omap_readl(OTG_SYSCON_1);
-+ l |= OTG_IDLE_EN;
-+ omap_writel(l, OTG_SYSCON_1);
-+
-+ /* Power off transceiver */
-+ tahvo_write_reg(tu->dev, TAHVO_REG_USBR, 0);
-+ tu->otg.state = OTG_STATE_UNDEFINED;
-+}
-+
-+
-+static int tahvo_usb_set_power(struct otg_transceiver *dev, unsigned mA)
-+{
-+ struct tahvo_usb *tu = container_of(dev, struct tahvo_usb, otg);
-+
-+ dev_dbg(&tu->pt_dev->dev, "set_power %d mA\n", mA);
-+
-+ if (dev->state == OTG_STATE_B_PERIPHERAL) {
-+ /* REVISIT: Can Tahvo charge battery from VBUS? */
-+ }
-+ return 0;
-+}
-+
-+static int tahvo_usb_set_suspend(struct otg_transceiver *dev, int suspend)
-+{
-+ struct tahvo_usb *tu = container_of(dev, struct tahvo_usb, otg);
-+ u16 w;
-+
-+ dev_dbg(&tu->pt_dev->dev, "set_suspend\n");
-+
-+ w = tahvo_read_reg(tu->dev, TAHVO_REG_USBR);
-+ if (suspend)
-+ w &= ~USBR_NSUSPEND;
-+ else
-+ w |= USBR_NSUSPEND;
-+ tahvo_write_reg(tu->dev, TAHVO_REG_USBR, w);
-+
-+ return 0;
-+}
-+
-+static int tahvo_usb_start_srp(struct otg_transceiver *dev)
-+{
-+ struct tahvo_usb *tu = container_of(dev, struct tahvo_usb, otg);
-+ u32 otg_ctrl;
-+
-+ dev_dbg(&tu->pt_dev->dev, "start_srp\n");
-+
-+ if (!dev || tu->otg.state != OTG_STATE_B_IDLE)
-+ return -ENODEV;
-+
-+ otg_ctrl = omap_readl(OTG_CTRL);
-+ if (!(otg_ctrl & OTG_BSESSEND))
-+ return -EINVAL;
-+
-+ otg_ctrl |= OTG_B_BUSREQ;
-+ otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_SYS_MASK;
-+ omap_writel(otg_ctrl, OTG_CTRL);
-+ tu->otg.state = OTG_STATE_B_SRP_INIT;
-+
-+ return 0;
-+}
-+
-+static int tahvo_usb_start_hnp(struct otg_transceiver *otg)
-+{
-+ struct tahvo_usb *tu = container_of(otg, struct tahvo_usb, otg);
-+
-+ dev_dbg(&tu->pt_dev->dev, "start_hnp\n");
-+#ifdef CONFIG_USB_OTG
-+ /* REVISIT: Add this for OTG */
-+#endif
-+ return -EINVAL;
-+}
-+
-+static int tahvo_usb_set_host(struct otg_transceiver *otg, struct usb_bus *host)
-+{
-+ struct tahvo_usb *tu = container_of(otg, struct tahvo_usb, otg);
-+ u32 l;
-+
-+ dev_dbg(&tu->pt_dev->dev, "set_host %p\n", host);
-+
-+ if (otg == NULL)
-+ return -ENODEV;
-+
-+#if defined(CONFIG_USB_OTG) || !defined(CONFIG_USB_GADGET_OMAP)
-+
-+ mutex_lock(&tu->serialize);
-+
-+ if (host == NULL) {
-+ if (TAHVO_MODE(tu) == TAHVO_MODE_HOST)
-+ tahvo_usb_power_off(tu);
-+ tu->otg.host = NULL;
-+ mutex_unlock(&tu->serialize);
-+ return 0;
-+ }
-+
-+ l = omap_readl(OTG_SYSCON_1);
-+ l &= ~(OTG_IDLE_EN | HST_IDLE_EN | DEV_IDLE_EN);
-+ omap_writel(l, OTG_SYSCON_1);
-+
-+ if (TAHVO_MODE(tu) == TAHVO_MODE_HOST) {
-+ tu->otg.host = NULL;
-+ tahvo_usb_become_host(tu);
-+ }
-+
-+ tu->otg.host = host;
-+
-+ mutex_unlock(&tu->serialize);
-+#else
-+ /* No host mode configured, so do not allow host controlled to be set */
-+ return -EINVAL;
-+#endif
-+
-+ return 0;
-+}
-+
-+static int tahvo_usb_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
-+{
-+ struct tahvo_usb *tu = container_of(otg, struct tahvo_usb, otg);
-+
-+ dev_dbg(&tu->pt_dev->dev, "set_peripheral %p\n", gadget);
-+
-+ if (!otg)
-+ return -ENODEV;
-+
-+#if defined(CONFIG_USB_OTG) || defined(CONFIG_USB_GADGET_OMAP)
-+
-+ mutex_lock(&tu->serialize);
-+
-+ if (!gadget) {
-+ if (TAHVO_MODE(tu) == TAHVO_MODE_PERIPHERAL)
-+ tahvo_usb_power_off(tu);
-+ tu->otg.gadget = NULL;
-+ mutex_unlock(&tu->serialize);
-+ return 0;
-+ }
-+
-+ tu->otg.gadget = gadget;
-+ if (TAHVO_MODE(tu) == TAHVO_MODE_PERIPHERAL)
-+ tahvo_usb_become_peripheral(tu);
-+
-+ mutex_unlock(&tu->serialize);
-+#else
-+ /* No gadget mode configured, so do not allow host controlled to be set */
-+ return -EINVAL;
-+#endif
-+
-+ return 0;
-+}
-+
-+static irqreturn_t tahvo_usb_vbus_interrupt(int irq, void *_tu)
-+{
-+ struct tahvo_usb *tu = _tu;
-+
-+ check_vbus_state(tu);
-+
-+ return IRQ_HANDLED;
-+}
-+
-+#ifdef CONFIG_USB_OTG
-+static ssize_t otg_mode_show(struct device *device,
-+ struct device_attribute *attr, char *buf)
-+{
-+ struct tahvo_usb *tu = dev_get_drvdata(device);
-+ switch (tu->tahvo_mode) {
-+ case TAHVO_MODE_HOST:
-+ return sprintf(buf, "host\n");
-+ case TAHVO_MODE_PERIPHERAL:
-+ return sprintf(buf, "peripheral\n");
-+ }
-+ return sprintf(buf, "unknown\n");
-+}
-+
-+static ssize_t otg_mode_store(struct device *device,
-+ struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ struct tahvo_usb *tu = dev_get_drvdata(device);
-+ int r;
-+
-+ r = strlen(buf);
-+ mutex_lock(&tu->serialize);
-+ if (strncmp(buf, "host", 4) == 0) {
-+ if (tu->tahvo_mode == TAHVO_MODE_PERIPHERAL)
-+ tahvo_usb_stop_peripheral(tu);
-+ tu->tahvo_mode = TAHVO_MODE_HOST;
-+ if (tu->otg.host) {
-+ printk(KERN_INFO "Selected HOST mode: host controller present.\n");
-+ tahvo_usb_become_host(tu);
-+ } else {
-+ printk(KERN_INFO "Selected HOST mode: no host controller, powering off.\n");
-+ tahvo_usb_power_off(tu);
-+ }
-+ } else if (strncmp(buf, "peripheral", 10) == 0) {
-+ if (tu->tahvo_mode == TAHVO_MODE_HOST)
-+ tahvo_usb_stop_host(tu);
-+ tu->tahvo_mode = TAHVO_MODE_PERIPHERAL;
-+ if (tu->otg.gadget) {
-+ printk(KERN_INFO "Selected PERIPHERAL mode: gadget driver present.\n");
-+ tahvo_usb_become_peripheral(tu);
-+ } else {
-+ printk(KERN_INFO "Selected PERIPHERAL mode: no gadget driver, powering off.\n");
-+ tahvo_usb_power_off(tu);
-+ }
-+ } else
-+ r = -EINVAL;
-+
-+ mutex_unlock(&tu->serialize);
-+ return r;
-+}
-+
-+static DEVICE_ATTR(otg_mode, 0644, otg_mode_show, otg_mode_store);
-+#endif
-+
-+static int __init tahvo_usb_probe(struct platform_device *pdev)
-+{
-+ struct tahvo_usb *tu;
-+ struct device *dev = &pdev->dev;
-+ int ret;
-+ int irq;
-+
-+ dev_dbg(dev, "probe\n");
-+
-+ /* Create driver data */
-+ tu = kzalloc(sizeof(*tu), GFP_KERNEL);
-+ if (!tu)
-+ return -ENOMEM;
-+ tahvo_usb_device = tu;
-+
-+ tu->dev = dev;
-+ tu->pt_dev = pdev;
-+#ifdef CONFIG_USB_OTG
-+ /* Default mode */
-+#ifdef CONFIG_CBUS_TAHVO_USB_HOST_BY_DEFAULT
-+ tu->tahvo_mode = TAHVO_MODE_HOST;
-+#else
-+ tu->tahvo_mode = TAHVO_MODE_PERIPHERAL;
-+#endif
-+#endif
-+
-+ mutex_init(&tu->serialize);
-+
-+ tu->ick = clk_get(NULL, "usb_l4_ick");
-+ if (IS_ERR(tu->ick)) {
-+ dev_err(dev, "Failed to get usb_l4_ick\n");
-+ ret = PTR_ERR(tu->ick);
-+ goto err_free_tu;
-+ }
-+ clk_enable(tu->ick);
-+
-+ /* Set initial state, so that we generate kevents only on
-+ * state changes */
-+ tu->vbus_state = tahvo_read_reg(tu->dev, TAHVO_REG_IDSR) & 0x01;
-+
-+ irq = platform_get_irq(pdev, 0);
-+ tu->irq = irq;
-+
-+ /* We cannot enable interrupt until omap_udc is initialized */
-+ ret = request_threaded_irq(irq, NULL, tahvo_usb_vbus_interrupt,
-+ IRQF_ONESHOT, "tahvo-vbus", tu);
-+ if (ret != 0) {
-+ printk(KERN_ERR "Could not register Tahvo interrupt for VBUS\n");
-+ goto err_release_clk;
-+ }
-+
-+ /* Attributes */
-+ ret = device_create_file(dev, &dev_attr_vbus_state);
-+#ifdef CONFIG_USB_OTG
-+ ret |= device_create_file(dev, &dev_attr_otg_mode);
-+#endif
-+ if (ret)
-+ printk(KERN_ERR "attribute creation failed: %d\n", ret);
-+
-+ /* Create OTG interface */
-+ tahvo_usb_power_off(tu);
-+ tu->otg.state = OTG_STATE_UNDEFINED;
-+ tu->otg.label = DRIVER_NAME;
-+ tu->otg.set_host = tahvo_usb_set_host;
-+ tu->otg.set_peripheral = tahvo_usb_set_peripheral;
-+ tu->otg.set_power = tahvo_usb_set_power;
-+ tu->otg.set_suspend = tahvo_usb_set_suspend;
-+ tu->otg.start_srp = tahvo_usb_start_srp;
-+ tu->otg.start_hnp = tahvo_usb_start_hnp;
-+
-+ ret = otg_set_transceiver(&tu->otg);
-+ if (ret < 0) {
-+ printk(KERN_ERR "Cannot register USB transceiver\n");
-+ goto err_free_irq;
-+ }
-+
-+ dev_set_drvdata(dev, tu);
-+
-+ return 0;
-+
-+err_free_irq:
-+ free_irq(tu->irq, tu);
-+err_release_clk:
-+ clk_disable(tu->ick);
-+ clk_put(tu->ick);
-+err_free_tu:
-+ kfree(tu);
-+ tahvo_usb_device = NULL;
-+
-+ return ret;
-+}
-+
-+static int __exit tahvo_usb_remove(struct platform_device *pdev)
-+{
-+ struct tahvo_usb *tu = platform_get_drvdata(pdev);
-+
-+ dev_dbg(&pdev->dev, "remove\n");
-+
-+ free_irq(tu->irq, tu);
-+ flush_scheduled_work();
-+ otg_set_transceiver(0);
-+ device_remove_file(&pdev->dev, &dev_attr_vbus_state);
-+#ifdef CONFIG_USB_OTG
-+ device_remove_file(&pdev->dev, &dev_attr_otg_mode);
-+#endif
-+ clk_disable(tu->ick);
-+ clk_put(tu->ick);
-+
-+ kfree(tu);
-+ tahvo_usb_device = NULL;
-+
-+ return 0;
-+}
-+
-+static struct platform_driver tahvo_usb_driver = {
-+ .driver = {
-+ .name = "tahvo-usb",
-+ },
-+ .remove = __exit_p(tahvo_usb_remove),
-+};
-+
-+static int __init tahvo_usb_init(void)
-+{
-+ int ret = 0;
-+
-+ ret = platform_driver_probe(&tahvo_usb_driver, tahvo_usb_probe);
-+ if (ret)
-+ return ret;
-+
-+ ret = platform_driver_probe(&omap_otg_driver, omap_otg_probe);
-+ if (ret) {
-+ platform_driver_unregister(&tahvo_usb_driver);
-+ return ret;
-+ }
-+
-+ return 0;
-+}
-+
-+subsys_initcall(tahvo_usb_init);
-+
-+static void __exit tahvo_usb_exit(void)
-+{
-+ platform_driver_unregister(&omap_otg_driver);
-+ platform_driver_unregister(&tahvo_usb_driver);
-+}
-+module_exit(tahvo_usb_exit);
-+
-+MODULE_DESCRIPTION("Tahvo USB OTG Transceiver Driver");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Juha Yrjölä, Tony Lindgren, and Timo Teräs");
---- a/drivers/Makefile
-+++ b/drivers/Makefile
-@@ -78,7 +78,7 @@ obj-$(CONFIG_GAMEPORT) += input/gamepor
- obj-$(CONFIG_INPUT) += input/
- obj-$(CONFIG_I2O) += message/
- obj-$(CONFIG_RTC_LIB) += rtc/
--obj-y += i2c/ media/
-+obj-y += i2c/ media/ cbus/
- obj-$(CONFIG_PPS) += pps/
- obj-$(CONFIG_PTP_1588_CLOCK) += ptp/
- obj-$(CONFIG_W1) += w1/
---- a/drivers/Kconfig
-+++ b/drivers/Kconfig
-@@ -2,6 +2,8 @@ menu "Device Drivers"
-
- source "drivers/base/Kconfig"
-
-+source "drivers/cbus/Kconfig"
-+
- source "drivers/connector/Kconfig"
-
- source "drivers/mtd/Kconfig"
projects / 15.05 / openwrt.git / blobdiff