Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (59 commits)
  rtc: max8925: Add function to work as wakeup source
  mfd: Add pm ops to max8925
  mfd: Convert aat2870 to dev_pm_ops
  mfd: Still check other interrupts if we get a wm831x touchscreen IRQ
  mfd: Introduce missing kfree in 88pm860x probe routine
  mfd: Add S5M series configuration
  mfd: Add s5m series irq driver
  mfd: Add S5M core driver
  mfd: Improve mc13xxx dt binding document
  mfd: Fix stmpe section mismatch
  mfd: Fix stmpe build warning
  mfd: Fix STMPE I2c build failure
  mfd: Constify aat2870-core i2c_device_id table
  gpio: Add support for stmpe variant 801
  mfd: Add support for stmpe variant 801
  mfd: Add support for stmpe variant 610
  mfd: Add support for STMPE SPI interface
  mfd: Separate out STMPE controller and interface specific code
  misc: Remove max8997-muic sysfs attributes
  mfd: Remove unused wm831x_irq_data_to_mask_reg()
  ...

Fix up trivial conflict in drivers/leds/Kconfig due to addition of
LEDS_MAX8997 and LEDS_TCA6507 next to each other.

1 files changed, 134 insertions, 107 deletions

diff --git a/drivers/mfd/88pm860x-i2c.c b/drivers/mfd/88pm860x-i2c.c
index e017dc88622a..f93dd9571c3c 100644
--- a/drivers/mfd/88pm860x-i2c.c
+++ b/drivers/mfd/88pm860x-i2c.c
@@ -12,51 +12,20 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/regmap.h>
 #include <linux/mfd/88pm860x.h>
 #include <linux/slab.h>
 
-static inline int pm860x_read_device(struct i2c_client *i2c,
-				     int reg, int bytes, void *dest)
-{
-	unsigned char data;
-	int ret;
-
-	data = (unsigned char)reg;
-	ret = i2c_master_send(i2c, &data, 1);
-	if (ret < 0)
-		return ret;
-
-	ret = i2c_master_recv(i2c, dest, bytes);
-	if (ret < 0)
-		return ret;
-	return 0;
-}
-
-static inline int pm860x_write_device(struct i2c_client *i2c,
-				      int reg, int bytes, void *src)
-{
-	unsigned char buf[bytes + 1];
-	int ret;
-
-	buf[0] = (unsigned char)reg;
-	memcpy(&buf[1], src, bytes);
-
-	ret = i2c_master_send(i2c, buf, bytes + 1);
-	if (ret < 0)
-		return ret;
-	return 0;
-}
-
 int pm860x_reg_read(struct i2c_client *i2c, int reg)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
-	unsigned char data;
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
+	unsigned int data;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_read_device(i2c, reg, 1, &data);
-	mutex_unlock(&chip->io_lock);
-
+	ret = regmap_read(map, reg, &data);
 	if (ret < 0)
 		return ret;
 	else
@@ -68,12 +37,11 @@ int pm860x_reg_write(struct i2c_client *i2c, int reg,
 		     unsigned char data)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_write_device(i2c, reg, 1, &data);
-	mutex_unlock(&chip->io_lock);
-
+	ret = regmap_write(map, reg, data);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_reg_write);
@@ -82,12 +50,11 @@ int pm860x_bulk_read(struct i2c_client *i2c, int reg,
 		     int count, unsigned char *buf)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_read_device(i2c, reg, count, buf);
-	mutex_unlock(&chip->io_lock);
-
+	ret = regmap_raw_read(map, reg, buf, count);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_bulk_read);
@@ -96,12 +63,11 @@ int pm860x_bulk_write(struct i2c_client *i2c, int reg,
 		      int count, unsigned char *buf)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_write_device(i2c, reg, count, buf);
-	mutex_unlock(&chip->io_lock);
-
+	ret = regmap_raw_write(map, reg, buf, count);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_bulk_write);
@@ -110,39 +76,78 @@ int pm860x_set_bits(struct i2c_client *i2c, int reg,
 		    unsigned char mask, unsigned char data)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
-	unsigned char value;
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_read_device(i2c, reg, 1, &value);
-	if (ret < 0)
-		goto out;
-	value &= ~mask;
-	value |= data;
-	ret = pm860x_write_device(i2c, reg, 1, &value);
-out:
-	mutex_unlock(&chip->io_lock);
+	ret = regmap_update_bits(map, reg, mask, data);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_set_bits);
 
+static int read_device(struct i2c_client *i2c, int reg,
+		       int bytes, void *dest)
+{
+	unsigned char msgbuf0[I2C_SMBUS_BLOCK_MAX + 3];
+	unsigned char msgbuf1[I2C_SMBUS_BLOCK_MAX + 2];
+	struct i2c_adapter *adap = i2c->adapter;
+	struct i2c_msg msg[2] = {{i2c->addr, 0, 1, msgbuf0},
+				 {i2c->addr, I2C_M_RD, 0, msgbuf1},
+				};
+	int num = 1, ret = 0;
+
+	if (dest == NULL)
+		return -EINVAL;
+	msgbuf0[0] = (unsigned char)reg;	/* command */
+	msg[1].len = bytes;
+
+	/* if data needs to read back, num should be 2 */
+	if (bytes > 0)
+		num = 2;
+	ret = adap->algo->master_xfer(adap, msg, num);
+	memcpy(dest, msgbuf1, bytes);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
+static int write_device(struct i2c_client *i2c, int reg,
+			int bytes, void *src)
+{
+	unsigned char buf[bytes + 1];
+	struct i2c_adapter *adap = i2c->adapter;
+	struct i2c_msg msg;
+	int ret;
+
+	buf[0] = (unsigned char)reg;
+	memcpy(&buf[1], src, bytes);
+	msg.addr = i2c->addr;
+	msg.flags = 0;
+	msg.len = bytes + 1;
+	msg.buf = buf;
+
+	ret = adap->algo->master_xfer(adap, &msg, 1);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
 int pm860x_page_reg_read(struct i2c_client *i2c, int reg)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero = 0;
 	unsigned char data;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_read_device(i2c, reg, 1, &data);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xFA, 0, &zero);
+	read_device(i2c, 0xFB, 0, &zero);
+	read_device(i2c, 0xFF, 0, &zero);
+	ret = read_device(i2c, reg, 1, &data);
 	if (ret >= 0)
 		ret = (int)data;
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_reg_read);
@@ -150,18 +155,17 @@ EXPORT_SYMBOL(pm860x_page_reg_read);
 int pm860x_page_reg_write(struct i2c_client *i2c, int reg,
 			  unsigned char data)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_write_device(i2c, reg, 1, &data);
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xFA, 0, &zero);
+	read_device(i2c, 0xFB, 0, &zero);
+	read_device(i2c, 0xFF, 0, &zero);
+	ret = write_device(i2c, reg, 1, &data);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_reg_write);
@@ -169,18 +173,17 @@ EXPORT_SYMBOL(pm860x_page_reg_write);
 int pm860x_page_bulk_read(struct i2c_client *i2c, int reg,
 			  int count, unsigned char *buf)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero = 0;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_read_device(i2c, reg, count, buf);
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xfa, 0, &zero);
+	read_device(i2c, 0xfb, 0, &zero);
+	read_device(i2c, 0xff, 0, &zero);
+	ret = read_device(i2c, reg, count, buf);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_bulk_read);
@@ -188,18 +191,18 @@ EXPORT_SYMBOL(pm860x_page_bulk_read);
 int pm860x_page_bulk_write(struct i2c_client *i2c, int reg,
 			   int count, unsigned char *buf)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero = 0;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_write_device(i2c, reg, count, buf);
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xFA, 0, &zero);
+	read_device(i2c, 0xFB, 0, &zero);
+	read_device(i2c, 0xFF, 0, &zero);
+	ret = write_device(i2c, reg, count, buf);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_bulk_write);
@@ -207,25 +210,24 @@ EXPORT_SYMBOL(pm860x_page_bulk_write);
 int pm860x_page_set_bits(struct i2c_client *i2c, int reg,
 			 unsigned char mask, unsigned char data)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero;
 	unsigned char value;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_read_device(i2c, reg, 1, &value);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xFA, 0, &zero);
+	read_device(i2c, 0xFB, 0, &zero);
+	read_device(i2c, 0xFF, 0, &zero);
+	ret = read_device(i2c, reg, 1, &value);
 	if (ret < 0)
 		goto out;
 	value &= ~mask;
 	value |= data;
-	ret = pm860x_write_device(i2c, reg, 1, &value);
+	ret = write_device(i2c, reg, 1, &value);
 out:
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_set_bits);
@@ -257,11 +259,17 @@ static int verify_addr(struct i2c_client *i2c)
 	return 0;
 }
 
+static struct regmap_config pm860x_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
 static int __devinit pm860x_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
 	struct pm860x_platform_data *pdata = client->dev.platform_data;
 	struct pm860x_chip *chip;
+	int ret;
 
 	if (!pdata) {
 		pr_info("No platform data in %s!\n", __func__);
@@ -273,10 +281,17 @@ static int __devinit pm860x_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	chip->id = verify_addr(client);
+	chip->regmap = regmap_init_i2c(client, &pm860x_regmap_config);
+	if (IS_ERR(chip->regmap)) {
+		ret = PTR_ERR(chip->regmap);
+		dev_err(&client->dev, "Failed to allocate register map: %d\n",
+				ret);
+		kfree(chip);
+		return ret;
+	}
 	chip->client = client;
 	i2c_set_clientdata(client, chip);
 	chip->dev = &client->dev;
-	mutex_init(&chip->io_lock);
 	dev_set_drvdata(chip->dev, chip);
 
 	/*
@@ -290,6 +305,14 @@ static int __devinit pm860x_probe(struct i2c_client *client,
 		chip->companion_addr = pdata->companion_addr;
 		chip->companion = i2c_new_dummy(chip->client->adapter,
 						chip->companion_addr);
+		chip->regmap_companion = regmap_init_i2c(chip->companion,
+							&pm860x_regmap_config);
+		if (IS_ERR(chip->regmap_companion)) {
+			ret = PTR_ERR(chip->regmap_companion);
+			dev_err(&chip->companion->dev,
+				"Failed to allocate register map: %d\n", ret);
+			return ret;
+		}
 		i2c_set_clientdata(chip->companion, chip);
 	}
 
@@ -302,7 +325,11 @@ static int __devexit pm860x_remove(struct i2c_client *client)
 	struct pm860x_chip *chip = i2c_get_clientdata(client);
 
 	pm860x_device_exit(chip);
-	i2c_unregister_device(chip->companion);
+	if (chip->companion) {
+		regmap_exit(chip->regmap_companion);
+		i2c_unregister_device(chip->companion);
+	}
+	regmap_exit(chip->regmap);
 	kfree(chip);
 	return 0;
 }