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: (90 commits)
  mfd: Push byte swaps out of wm8994 bulk read path
  mfd: Rename ab8500 gpadc header
  mfd: Constify WM8994 write path
  mfd: Push byte swap out of WM8994 bulk I/O
  mfd: Avoid copying data in WM8994 I2C write
  mfd: Remove copy from WM831x I2C write function
  mfd: Staticise WM8994 PM ops
  regulator: Add a subdriver for TI TPS6105x regulator portions v2
  mfd: Add a core driver for TI TPS61050/TPS61052 chips v2
  gpio: Add Tunnel Creek support to sch_gpio
  mfd: Add Tunnel Creek support to lpc_sch
  pci_ids: Add Intel Tunnel Creek LPC Bridge device ID.
  regulator: MAX8997/8966 support
  mfd: Add WM8994 bulk register write operation
  mfd: Append additional read write on 88pm860x
  mfd: Adopt mfd_data in 88pm860x input driver
  mfd: Adopt mfd_data in 88pm860x regulator
  mfd: Adopt mfd_data in 88pm860x led
  mfd: Adopt mfd_data in 88pm860x backlight
  mfd: Fix MAX8997 Kconfig entry typos
  ...

1 files changed, 52 insertions, 4 deletions

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index b6887014d687..6e185b272d00 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -4,7 +4,7 @@
  * License Terms: GNU General Public License v2
  * Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
  * Author: Rabin Vincent <rabin.vincent@stericsson.com>
- * Changes: Mattias Wallin <mattias.wallin@stericsson.com>
+ * Author: Mattias Wallin <mattias.wallin@stericsson.com>
  */
 
 #include <linux/kernel.h>
@@ -90,6 +90,7 @@
 #define AB8500_IT_MASK24_REG		0x57
 
 #define AB8500_REV_REG			0x80
+#define AB8500_SWITCH_OFF_STATUS	0x00
 
 /*
  * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
@@ -652,10 +653,38 @@ static ssize_t show_chip_id(struct device *dev,
 	return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
 }
 
+/*
+ * ab8500 has switched off due to (SWITCH_OFF_STATUS):
+ * 0x01 Swoff bit programming
+ * 0x02 Thermal protection activation
+ * 0x04 Vbat lower then BattOk falling threshold
+ * 0x08 Watchdog expired
+ * 0x10 Non presence of 32kHz clock
+ * 0x20 Battery level lower than power on reset threshold
+ * 0x40 Power on key 1 pressed longer than 10 seconds
+ * 0x80 DB8500 thermal shutdown
+ */
+static ssize_t show_switch_off_status(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int ret;
+	u8 value;
+	struct ab8500 *ab8500;
+
+	ab8500 = dev_get_drvdata(dev);
+	ret = get_register_interruptible(ab8500, AB8500_RTC,
+		AB8500_SWITCH_OFF_STATUS, &value);
+	if (ret < 0)
+		return ret;
+	return sprintf(buf, "%#x\n", value);
+}
+
 static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
+static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
 
 static struct attribute *ab8500_sysfs_entries[] = {
 	&dev_attr_chip_id.attr,
+	&dev_attr_switch_off_status.attr,
 	NULL,
 };
 
@@ -686,9 +715,10 @@ int __devinit ab8500_init(struct ab8500 *ab8500)
 	 * 0x10 - Cut 1.0
 	 * 0x11 - Cut 1.1
 	 * 0x20 - Cut 2.0
+	 * 0x30 - Cut 3.0
 	 */
-	if (value == 0x0 || value == 0x10 || value == 0x11 || value == 0x20) {
-		ab8500->revision = value;
+	if (value == 0x0 || value == 0x10 || value == 0x11 || value == 0x20 ||
+		value == 0x30) {
 		dev_info(ab8500->dev, "detected chip, revision: %#x\n", value);
 	} else {
 		dev_err(ab8500->dev, "unknown chip, revision: %#x\n", value);
@@ -696,6 +726,24 @@ int __devinit ab8500_init(struct ab8500 *ab8500)
 	}
 	ab8500->chip_id = value;
 
+	/*
+	 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
+	 * 0x01 Swoff bit programming
+	 * 0x02 Thermal protection activation
+	 * 0x04 Vbat lower then BattOk falling threshold
+	 * 0x08 Watchdog expired
+	 * 0x10 Non presence of 32kHz clock
+	 * 0x20 Battery level lower than power on reset threshold
+	 * 0x40 Power on key 1 pressed longer than 10 seconds
+	 * 0x80 DB8500 thermal shutdown
+	 */
+
+	ret = get_register_interruptible(ab8500, AB8500_RTC,
+		AB8500_SWITCH_OFF_STATUS, &value);
+	if (ret < 0)
+		return ret;
+	dev_info(ab8500->dev, "switch off status: %#x", value);
+
 	if (plat && plat->init)
 		plat->init(ab8500);
 
@@ -764,6 +812,6 @@ int __devexit ab8500_exit(struct ab8500 *ab8500)
 	return 0;
 }
 
-MODULE_AUTHOR("Srinidhi Kasagar, Rabin Vincent");
+MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
 MODULE_DESCRIPTION("AB8500 MFD core");
 MODULE_LICENSE("GPL v2");