Merge branch 'master' into next

27 files changed, 1861 insertions, 896 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 1c484084ed4..6d1ac180f6e 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -18,8 +18,8 @@ config ATMEL_PWM
 	depends on AVR32 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9
 	help
 	  This option enables device driver support for the PWM channels
-	  on certain Atmel prcoessors.  Pulse Width Modulation is used for
-	  purposes including software controlled power-efficent backlights
+	  on certain Atmel processors.  Pulse Width Modulation is used for
+	  purposes including software controlled power-efficient backlights
 	  on LCD displays, motor control, and waveform generation.
 
 config ATMEL_TCLIB
@@ -142,7 +142,7 @@ config ATMEL_SSC
 	tristate "Device driver for Atmel SSC peripheral"
 	depends on AVR32 || ARCH_AT91
 	---help---
-	  This option enables device driver support for Atmel Syncronized
+	  This option enables device driver support for Atmel Synchronized
 	  Serial Communication peripheral (SSC).
 
 	  The SSC peripheral supports a wide variety of serial frame based
@@ -165,7 +165,7 @@ config SGI_XP
 	depends on (IA64_GENERIC || IA64_SGI_SN2 || IA64_SGI_UV || X86_UV) && SMP
 	select IA64_UNCACHED_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
 	select GENERIC_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
-	select SGI_GRU if (IA64_GENERIC || IA64_SGI_UV || X86_64) && SMP
+	select SGI_GRU if X86_64 && SMP
 	---help---
 	  An SGI machine can be divided into multiple Single System
 	  Images which act independently of each other and have
@@ -189,7 +189,7 @@ config HP_ILO
 
 config SGI_GRU
 	tristate "SGI GRU driver"
-	depends on (X86_UV || IA64_SGI_UV || IA64_GENERIC) && SMP
+	depends on X86_UV && SMP
 	default n
 	select MMU_NOTIFIER
 	---help---
@@ -223,6 +223,16 @@ config DELL_LAPTOP
 	This driver adds support for rfkill and backlight control to Dell
 	laptops.
 
+config ISL29003
+	tristate "Intersil ISL29003 ambient light sensor"
+	depends on I2C && SYSFS
+	help
+	  If you say yes here you get support for the Intersil ISL29003
+	  ambient light sensor.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called isl29003.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index bc119983055..7871f05dcb9 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -18,5 +18,6 @@ obj-$(CONFIG_KGDB_TESTS)	+= kgdbts.o
 obj-$(CONFIG_SGI_XP)		+= sgi-xp/
 obj-$(CONFIG_SGI_GRU)		+= sgi-gru/
 obj-$(CONFIG_HP_ILO)		+= hpilo.o
+obj-$(CONFIG_ISL29003)		+= isl29003.o
 obj-$(CONFIG_C2PORT)		+= c2port/
 obj-y				+= eeprom/
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index d4775528abc..db39f4a52f5 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -53,6 +53,7 @@
 
 struct at24_data {
 	struct at24_platform_data chip;
+	struct memory_accessor macc;
 	bool use_smbus;
 
 	/*
@@ -225,14 +226,11 @@ static ssize_t at24_eeprom_read(struct at24_data *at24, char *buf,
 		return status;
 }
 
-static ssize_t at24_bin_read(struct kobject *kobj, struct bin_attribute *attr,
+static ssize_t at24_read(struct at24_data *at24,
 		char *buf, loff_t off, size_t count)
 {
-	struct at24_data *at24;
 	ssize_t retval = 0;
 
-	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
-
 	if (unlikely(!count))
 		return count;
 
@@ -262,12 +260,14 @@ static ssize_t at24_bin_read(struct kobject *kobj, struct bin_attribute *attr,
 	return retval;
 }
 
+static ssize_t at24_bin_read(struct kobject *kobj, struct bin_attribute *attr,
+		char *buf, loff_t off, size_t count)
+{
+	struct at24_data *at24;
 
-/*
- * REVISIT: export at24_bin{read,write}() to let other kernel code use
- * eeprom data. For example, it might hold a board's Ethernet address, or
- * board-specific calibration data generated on the manufacturing floor.
- */
+	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+	return at24_read(at24, buf, off, count);
+}
 
 
 /*
@@ -278,7 +278,7 @@ static ssize_t at24_bin_read(struct kobject *kobj, struct bin_attribute *attr,
  * We only use page mode writes; the alternative is sloooow. This routine
  * writes at most one page.
  */
-static ssize_t at24_eeprom_write(struct at24_data *at24, char *buf,
+static ssize_t at24_eeprom_write(struct at24_data *at24, const char *buf,
 		unsigned offset, size_t count)
 {
 	struct i2c_client *client;
@@ -347,14 +347,11 @@ static ssize_t at24_eeprom_write(struct at24_data *at24, char *buf,
 	return -ETIMEDOUT;
 }
 
-static ssize_t at24_bin_write(struct kobject *kobj, struct bin_attribute *attr,
-		char *buf, loff_t off, size_t count)
+static ssize_t at24_write(struct at24_data *at24, const char *buf, loff_t off,
+			  size_t count)
 {
-	struct at24_data *at24;
 	ssize_t retval = 0;
 
-	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
-
 	if (unlikely(!count))
 		return count;
 
@@ -384,6 +381,39 @@ static ssize_t at24_bin_write(struct kobject *kobj, struct bin_attribute *attr,
 	return retval;
 }
 
+static ssize_t at24_bin_write(struct kobject *kobj, struct bin_attribute *attr,
+		char *buf, loff_t off, size_t count)
+{
+	struct at24_data *at24;
+
+	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+	return at24_write(at24, buf, off, count);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * This lets other kernel code access the eeprom data. For example, it
+ * might hold a board's Ethernet address, or board-specific calibration
+ * data generated on the manufacturing floor.
+ */
+
+static ssize_t at24_macc_read(struct memory_accessor *macc, char *buf,
+			 off_t offset, size_t count)
+{
+	struct at24_data *at24 = container_of(macc, struct at24_data, macc);
+
+	return at24_read(at24, buf, offset, count);
+}
+
+static ssize_t at24_macc_write(struct memory_accessor *macc, const char *buf,
+			  off_t offset, size_t count)
+{
+	struct at24_data *at24 = container_of(macc, struct at24_data, macc);
+
+	return at24_write(at24, buf, offset, count);
+}
+
 /*-------------------------------------------------------------------------*/
 
 static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
@@ -413,6 +443,9 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		 * is recommended anyhow.
 		 */
 		chip.page_size = 1;
+
+		chip.setup = NULL;
+		chip.context = NULL;
 	}
 
 	if (!is_power_of_2(chip.byte_len))
@@ -463,6 +496,8 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	at24->bin.read = at24_bin_read;
 	at24->bin.size = chip.byte_len;
 
+	at24->macc.read = at24_macc_read;
+
 	writable = !(chip.flags & AT24_FLAG_READONLY);
 	if (writable) {
 		if (!use_smbus || i2c_check_functionality(client->adapter,
@@ -470,6 +505,8 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
 			unsigned write_max = chip.page_size;
 
+			at24->macc.write = at24_macc_write;
+
 			at24->bin.write = at24_bin_write;
 			at24->bin.attr.mode |= S_IWUSR;
 
@@ -520,6 +557,10 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		at24->write_max,
 		use_smbus ? ", use_smbus" : "");
 
+	/* export data to kernel code */
+	if (chip.setup)
+		chip.setup(&at24->macc, chip.context);
+
 	return 0;
 
 err_clients:
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 290dbe99647..b34cb5f79ee 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -30,6 +30,7 @@
 
 struct at25_data {
 	struct spi_device	*spi;
+	struct memory_accessor	mem;
 	struct mutex		lock;
 	struct spi_eeprom	chip;
 	struct bin_attribute	bin;
@@ -75,6 +76,13 @@ at25_ee_read(
 	struct spi_transfer	t[2];
 	struct spi_message	m;
 
+	if (unlikely(offset >= at25->bin.size))
+		return 0;
+	if ((offset + count) > at25->bin.size)
+		count = at25->bin.size - offset;
+	if (unlikely(!count))
+		return count;
+
 	cp = command;
 	*cp++ = AT25_READ;
 
@@ -127,25 +135,26 @@ at25_bin_read(struct kobject *kobj, struct bin_attribute *bin_attr,
 	dev = container_of(kobj, struct device, kobj);
 	at25 = dev_get_drvdata(dev);
 
-	if (unlikely(off >= at25->bin.size))
-		return 0;
-	if ((off + count) > at25->bin.size)
-		count = at25->bin.size - off;
-	if (unlikely(!count))
-		return count;
-
 	return at25_ee_read(at25, buf, off, count);
 }
 
 
 static ssize_t
-at25_ee_write(struct at25_data *at25, char *buf, loff_t off, size_t count)
+at25_ee_write(struct at25_data *at25, const char *buf, loff_t off,
+	      size_t count)
 {
 	ssize_t			status = 0;
 	unsigned		written = 0;
 	unsigned		buf_size;
 	u8			*bounce;
 
+	if (unlikely(off >= at25->bin.size))
+		return -EFBIG;
+	if ((off + count) > at25->bin.size)
+		count = at25->bin.size - off;
+	if (unlikely(!count))
+		return count;
+
 	/* Temp buffer starts with command and address */
 	buf_size = at25->chip.page_size;
 	if (buf_size > io_limit)
@@ -253,18 +262,31 @@ at25_bin_write(struct kobject *kobj, struct bin_attribute *bin_attr,
 	dev = container_of(kobj, struct device, kobj);
 	at25 = dev_get_drvdata(dev);
 
-	if (unlikely(off >= at25->bin.size))
-		return -EFBIG;
-	if ((off + count) > at25->bin.size)
-		count = at25->bin.size - off;
-	if (unlikely(!count))
-		return count;
-
 	return at25_ee_write(at25, buf, off, count);
 }
 
 /*-------------------------------------------------------------------------*/
 
+/* Let in-kernel code access the eeprom data. */
+
+static ssize_t at25_mem_read(struct memory_accessor *mem, char *buf,
+			 off_t offset, size_t count)
+{
+	struct at25_data *at25 = container_of(mem, struct at25_data, mem);
+
+	return at25_ee_read(at25, buf, offset, count);
+}
+
+static ssize_t at25_mem_write(struct memory_accessor *mem, const char *buf,
+			  off_t offset, size_t count)
+{
+	struct at25_data *at25 = container_of(mem, struct at25_data, mem);
+
+	return at25_ee_write(at25, buf, offset, count);
+}
+
+/*-------------------------------------------------------------------------*/
+
 static int at25_probe(struct spi_device *spi)
 {
 	struct at25_data	*at25 = NULL;
@@ -317,6 +339,10 @@ static int at25_probe(struct spi_device *spi)
 	at25->addrlen = addrlen;
 
 	/* Export the EEPROM bytes through sysfs, since that's convenient.
+	 * And maybe to other kernel code; it might hold a board's Ethernet
+	 * address, or board-specific calibration data generated on the
+	 * manufacturing floor.
+	 *
 	 * Default to root-only access to the data; EEPROMs often hold data
 	 * that's sensitive for read and/or write, like ethernet addresses,
 	 * security codes, board-specific manufacturing calibrations, etc.
@@ -324,17 +350,22 @@ static int at25_probe(struct spi_device *spi)
 	at25->bin.attr.name = "eeprom";
 	at25->bin.attr.mode = S_IRUSR;
 	at25->bin.read = at25_bin_read;
+	at25->mem.read = at25_mem_read;
 
 	at25->bin.size = at25->chip.byte_len;
 	if (!(chip->flags & EE_READONLY)) {
 		at25->bin.write = at25_bin_write;
 		at25->bin.attr.mode |= S_IWUSR;
+		at25->mem.write = at25_mem_write;
 	}
 
 	err = sysfs_create_bin_file(&spi->dev.kobj, &at25->bin);
 	if (err)
 		goto fail;
 
+	if (chip->setup)
+		chip->setup(&at25->mem, chip->context);
+
 	dev_info(&spi->dev, "%Zd %s %s eeprom%s, pagesize %u\n",
 		(at25->bin.size < 1024)
 			? at25->bin.size
diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index cf991850f01..880ccf39e23 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -209,7 +209,7 @@ static void ilo_ccb_close(struct pci_dev *pdev, struct ccb_data *data)
 	/* give iLO some time to process stop request */
 	for (retries = MAX_WAIT; retries > 0; retries--) {
 		doorbell_set(driver_ccb);
-		udelay(1);
+		udelay(WAIT_TIME);
 		if (!(ioread32(&device_ccb->send_ctrl) & (1 << CTRL_BITPOS_A))
 		    &&
 		    !(ioread32(&device_ccb->recv_ctrl) & (1 << CTRL_BITPOS_A)))
@@ -312,7 +312,7 @@ static int ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
 	for (i = MAX_WAIT; i > 0; i--) {
 		if (ilo_pkt_dequeue(hw, driver_ccb, SENDQ, &pkt_id, NULL, NULL))
 			break;
-		udelay(1);
+		udelay(WAIT_TIME);
 	}
 
 	if (i) {
@@ -759,7 +759,7 @@ static void __exit ilo_exit(void)
 	class_destroy(ilo_class);
 }
 
-MODULE_VERSION("1.0");
+MODULE_VERSION("1.1");
 MODULE_ALIAS(ILO_NAME);
 MODULE_DESCRIPTION(ILO_NAME);
 MODULE_AUTHOR("David Altobelli <david.altobelli@hp.com>");
diff --git a/drivers/misc/hpilo.h b/drivers/misc/hpilo.h
index b64a20ef07e..03a14c82aad 100644
--- a/drivers/misc/hpilo.h
+++ b/drivers/misc/hpilo.h
@@ -19,8 +19,12 @@
 #define MAX_ILO_DEV	1
 /* max number of files */
 #define MAX_OPEN	(MAX_CCB * MAX_ILO_DEV)
+/* total wait time in usec */
+#define MAX_WAIT_TIME	10000
+/* per spin wait time in usec */
+#define WAIT_TIME	10
 /* spin counter for open/close delay */
-#define MAX_WAIT	10000
+#define MAX_WAIT	(MAX_WAIT_TIME / WAIT_TIME)
 
 /*
  * Per device, used to track global memory allocations.
diff --git a/drivers/misc/isl29003.c b/drivers/misc/isl29003.c
new file mode 100644
index 00000000000..a71e245801e
--- /dev/null
+++ b/drivers/misc/isl29003.c
@@ -0,0 +1,475 @@
+/*
+ *  isl29003.c - Linux kernel module for
+ * 	Intersil ISL29003 ambient light sensor
+ *
+ *  See file:Documentation/misc-devices/isl29003
+ *
+ *  Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
+ *
+ *  Based on code written by
+ *  	Rodolfo Giometti <giometti@linux.it>
+ *  	Eurotech S.p.A. <info@eurotech.it>
+ *
+ *  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/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+
+#define ISL29003_DRV_NAME	"isl29003"
+#define DRIVER_VERSION		"1.0"
+
+#define ISL29003_REG_COMMAND		0x00
+#define ISL29003_ADC_ENABLED		(1 << 7)
+#define ISL29003_ADC_PD			(1 << 6)
+#define ISL29003_TIMING_INT		(1 << 5)
+#define ISL29003_MODE_SHIFT		(2)
+#define ISL29003_MODE_MASK		(0x3 << ISL29003_MODE_SHIFT)
+#define ISL29003_RES_SHIFT		(0)
+#define ISL29003_RES_MASK		(0x3 << ISL29003_RES_SHIFT)
+
+#define ISL29003_REG_CONTROL		0x01
+#define ISL29003_INT_FLG		(1 << 5)
+#define ISL29003_RANGE_SHIFT		(2)
+#define ISL29003_RANGE_MASK		(0x3 << ISL29003_RANGE_SHIFT)
+#define ISL29003_INT_PERSISTS_SHIFT	(0)
+#define ISL29003_INT_PERSISTS_MASK	(0xf << ISL29003_INT_PERSISTS_SHIFT)
+
+#define ISL29003_REG_IRQ_THRESH_HI	0x02
+#define ISL29003_REG_IRQ_THRESH_LO	0x03
+#define ISL29003_REG_LSB_SENSOR		0x04
+#define ISL29003_REG_MSB_SENSOR		0x05
+#define ISL29003_REG_LSB_TIMER		0x06
+#define ISL29003_REG_MSB_TIMER		0x07
+
+#define ISL29003_NUM_CACHABLE_REGS	4
+
+struct isl29003_data {
+	struct i2c_client *client;
+	struct mutex lock;
+	u8 reg_cache[ISL29003_NUM_CACHABLE_REGS];
+	u8 power_state_before_suspend;
+};
+
+static int gain_range[] = {
+	1000, 4000, 16000, 64000
+};
+
+/*
+ * register access helpers
+ */
+
+static int __isl29003_read_reg(struct i2c_client *client,
+			       u32 reg, u8 mask, u8 shift)
+{
+	struct isl29003_data *data = i2c_get_clientdata(client);
+	return (data->reg_cache[reg] & mask) >> shift;
+}
+
+static int __isl29003_write_reg(struct i2c_client *client,
+				u32 reg, u8 mask, u8 shift, u8 val)
+{
+	struct isl29003_data *data = i2c_get_clientdata(client);
+	int ret = 0;
+	u8 tmp;
+
+	if (reg >= ISL29003_NUM_CACHABLE_REGS)
+		return -EINVAL;
+
+	mutex_lock(&data->lock);
+
+	tmp = data->reg_cache[reg];
+	tmp &= ~mask;
+	tmp |= val << shift;
+
+	ret = i2c_smbus_write_byte_data(client, reg, tmp);
+	if (!ret)
+		data->reg_cache[reg] = tmp;
+
+	mutex_unlock(&data->lock);
+	return ret;
+}
+
+/*
+ * internally used functions
+ */
+
+/* range */
+static int isl29003_get_range(struct i2c_client *client)
+{
+	return __isl29003_read_reg(client, ISL29003_REG_CONTROL,
+		ISL29003_RANGE_MASK, ISL29003_RANGE_SHIFT);
+}
+
+static int isl29003_set_range(struct i2c_client *client, int range)
+{
+	return __isl29003_write_reg(client, ISL29003_REG_CONTROL,
+		ISL29003_RANGE_MASK, ISL29003_RANGE_SHIFT, range);
+}
+
+/* resolution */
+static int isl29003_get_resolution(struct i2c_client *client)
+{
+	return __isl29003_read_reg(client, ISL29003_REG_COMMAND,
+		ISL29003_RES_MASK, ISL29003_RES_SHIFT);
+}
+
+static int isl29003_set_resolution(struct i2c_client *client, int res)
+{
+	return __isl29003_write_reg(client, ISL29003_REG_COMMAND,
+		ISL29003_RES_MASK, ISL29003_RES_SHIFT, res);
+}
+
+/* mode */
+static int isl29003_get_mode(struct i2c_client *client)
+{
+	return __isl29003_read_reg(client, ISL29003_REG_COMMAND,
+		ISL29003_RES_MASK, ISL29003_RES_SHIFT);
+}
+
+static int isl29003_set_mode(struct i2c_client *client, int mode)
+{
+	return __isl29003_write_reg(client, ISL29003_REG_COMMAND,
+		ISL29003_RES_MASK, ISL29003_RES_SHIFT, mode);
+}
+
+/* power_state */
+static int isl29003_set_power_state(struct i2c_client *client, int state)
+{
+	return __isl29003_write_reg(client, ISL29003_REG_COMMAND,
+				ISL29003_ADC_ENABLED | ISL29003_ADC_PD, 0,
+				state ? ISL29003_ADC_ENABLED : ISL29003_ADC_PD);
+}
+
+static int isl29003_get_power_state(struct i2c_client *client)
+{
+	struct isl29003_data *data = i2c_get_clientdata(client);
+	u8 cmdreg = data->reg_cache[ISL29003_REG_COMMAND];
+	return ~cmdreg & ISL29003_ADC_PD;
+}
+
+static int isl29003_get_adc_value(struct i2c_client *client)
+{
+	struct isl29003_data *data = i2c_get_clientdata(client);
+	int lsb, msb, range, bitdepth;
+
+	mutex_lock(&data->lock);
+	lsb = i2c_smbus_read_byte_data(client, ISL29003_REG_LSB_SENSOR);
+
+	if (lsb < 0) {
+		mutex_unlock(&data->lock);
+		return lsb;
+	}
+
+	msb = i2c_smbus_read_byte_data(client, ISL29003_REG_MSB_SENSOR);
+	mutex_unlock(&data->lock);
+
+	if (msb < 0)
+		return msb;
+
+	range = isl29003_get_range(client);
+	bitdepth = (4 - isl29003_get_resolution(client)) * 4;
+	return (((msb << 8) | lsb) * gain_range[range]) >> bitdepth;
+}
+
+/*
+ * sysfs layer
+ */
+
+/* range */
+static ssize_t isl29003_show_range(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	return sprintf(buf, "%i\n", isl29003_get_range(client));
+}
+
+static ssize_t isl29003_store_range(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	unsigned long val;
+	int ret;
+
+	if ((strict_strtoul(buf, 10, &val) < 0) || (val > 3))
+		return -EINVAL;
+
+	ret = isl29003_set_range(client, val);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static DEVICE_ATTR(range, S_IWUSR | S_IRUGO,
+		   isl29003_show_range, isl29003_store_range);
+
+
+/* resolution */
+static ssize_t isl29003_show_resolution(struct device *dev,
+					struct device_attribute *attr,
+					char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	return sprintf(buf, "%d\n", isl29003_get_resolution(client));
+}
+
+static ssize_t isl29003_store_resolution(struct device *dev,
+					 struct device_attribute *attr,
+					 const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	unsigned long val;
+	int ret;
+
+	if ((strict_strtoul(buf, 10, &val) < 0) || (val > 3))
+		return -EINVAL;
+
+	ret = isl29003_set_resolution(client, val);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static DEVICE_ATTR(resolution, S_IWUSR | S_IRUGO,
+		   isl29003_show_resolution, isl29003_store_resolution);
+
+/* mode */
+static ssize_t isl29003_show_mode(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	return sprintf(buf, "%d\n", isl29003_get_mode(client));
+}
+
+static ssize_t isl29003_store_mode(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	unsigned long val;
+	int ret;
+
+	if ((strict_strtoul(buf, 10, &val) < 0) || (val > 2))
+		return -EINVAL;
+
+	ret = isl29003_set_mode(client, val);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static DEVICE_ATTR(mode, S_IWUSR | S_IRUGO,
+		   isl29003_show_mode, isl29003_store_mode);
+
+
+/* power state */
+static ssize_t isl29003_show_power_state(struct device *dev,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	return sprintf(buf, "%d\n", isl29003_get_power_state(client));
+}
+
+static ssize_t isl29003_store_power_state(struct device *dev,
+					  struct device_attribute *attr,
+					  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	unsigned long val;
+	int ret;
+
+	if ((strict_strtoul(buf, 10, &val) < 0) || (val > 1))
+		return -EINVAL;
+
+	ret = isl29003_set_power_state(client, val);
+	return ret ? ret : count;
+}
+
+static DEVICE_ATTR(power_state, S_IWUSR | S_IRUGO,
+		   isl29003_show_power_state, isl29003_store_power_state);
+
+
+/* lux */
+static ssize_t isl29003_show_lux(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	/* No LUX data if not operational */
+	if (!isl29003_get_power_state(client))
+		return -EBUSY;
+
+	return sprintf(buf, "%d\n", isl29003_get_adc_value(client));
+}
+
+static DEVICE_ATTR(lux, S_IRUGO, isl29003_show_lux, NULL);
+
+static struct attribute *isl29003_attributes[] = {
+	&dev_attr_range.attr,
+	&dev_attr_resolution.attr,
+	&dev_attr_mode.attr,
+	&dev_attr_power_state.attr,
+	&dev_attr_lux.attr,
+	NULL
+};
+
+static const struct attribute_group isl29003_attr_group = {
+	.attrs = isl29003_attributes,
+};
+
+static int isl29003_init_client(struct i2c_client *client)
+{
+	struct isl29003_data *data = i2c_get_clientdata(client);
+	int i;
+
+	/* read all the registers once to fill the cache.
+	 * if one of the reads fails, we consider the init failed */
+	for (i = 0; i < ARRAY_SIZE(data->reg_cache); i++) {
+		int v = i2c_smbus_read_byte_data(client, i);
+		if (v < 0)
+			return -ENODEV;
+
+		data->reg_cache[i] = v;
+	}
+
+	/* set defaults */
+	isl29003_set_range(client, 0);
+	isl29003_set_resolution(client, 0);
+	isl29003_set_mode(client, 0);
+	isl29003_set_power_state(client, 0);
+
+	return 0;
+}
+
+/*
+ * I2C layer
+ */
+
+static int __devinit isl29003_probe(struct i2c_client *client,
+				    const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct isl29003_data *data;
+	int err = 0;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+		return -EIO;
+
+	data = kzalloc(sizeof(struct isl29003_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->client = client;
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->lock);
+
+	/* initialize the ISL29003 chip */
+	err = isl29003_init_client(client);
+	if (err)
+		goto exit_kfree;
+
+	/* register sysfs hooks */
+	err = sysfs_create_group(&client->dev.kobj, &isl29003_attr_group);
+	if (err)
+		goto exit_kfree;
+
+	dev_info(&client->dev, "driver version %s enabled\n", DRIVER_VERSION);
+	return 0;
+
+exit_kfree:
+	kfree(data);
+	return err;
+}
+
+static int __devexit isl29003_remove(struct i2c_client *client)
+{
+	sysfs_remove_group(&client->dev.kobj, &isl29003_attr_group);
+	isl29003_set_power_state(client, 0);
+	kfree(i2c_get_clientdata(client));
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int isl29003_suspend(struct i2c_client *client, pm_message_t mesg)
+{
+	struct isl29003_data *data = i2c_get_clientdata(client);
+
+	data->power_state_before_suspend = isl29003_get_power_state(client);
+	return isl29003_set_power_state(client, 0);
+}
+
+static int isl29003_resume(struct i2c_client *client)
+{
+	int i;
+	struct isl29003_data *data = i2c_get_clientdata(client);
+
+	/* restore registers from cache */
+	for (i = 0; i < ARRAY_SIZE(data->reg_cache); i++)
+		if (i2c_smbus_write_byte_data(client, i, data->reg_cache[i]))
+			return -EIO;
+
+	return isl29003_set_power_state(client,
+		data->power_state_before_suspend);
+}
+
+#else
+#define isl29003_suspend	NULL
+#define isl29003_resume		NULL
+#endif /* CONFIG_PM */
+
+static const struct i2c_device_id isl29003_id[] = {
+	{ "isl29003", 0 },
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, isl29003_id);
+
+static struct i2c_driver isl29003_driver = {
+	.driver = {
+		.name	= ISL29003_DRV_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.suspend = isl29003_suspend,
+	.resume	= isl29003_resume,
+	.probe	= isl29003_probe,
+	.remove	= __devexit_p(isl29003_remove),
+	.id_table = isl29003_id,
+};
+
+static int __init isl29003_init(void)
+{
+	return i2c_add_driver(&isl29003_driver);
+}
+
+static void __exit isl29003_exit(void)
+{
+	i2c_del_driver(&isl29003_driver);
+}
+
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
+MODULE_DESCRIPTION("ISL29003 ambient light sensor driver");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION(DRIVER_VERSION);
+
+module_init(isl29003_init);
+module_exit(isl29003_exit);
+
diff --git a/drivers/misc/sgi-gru/Makefile b/drivers/misc/sgi-gru/Makefile
index 9e9170b3599..bcd8136d2f9 100644
--- a/drivers/misc/sgi-gru/Makefile
+++ b/drivers/misc/sgi-gru/Makefile
@@ -3,5 +3,5 @@ ifdef CONFIG_SGI_GRU_DEBUG
 endif
 
 obj-$(CONFIG_SGI_GRU) := gru.o
-gru-y := grufile.o grumain.o grufault.o grutlbpurge.o gruprocfs.o grukservices.o
+gru-y := grufile.o grumain.o grufault.o grutlbpurge.o gruprocfs.o grukservices.o gruhandles.o