Merge git://git.infradead.org/battery-2.6

* git://git.infradead.org/battery-2.6:
  da9030_battery: Fix race between event handler and monitor
  Add MAX17040 Fuel Gauge driver
  w1: ds2760_battery: add support for sleep mode feature
  w1: ds2760: add support for EEPROM read and write
  ds2760_battery: cleanups in ds2760_battery_probe()

2 files changed, 37 insertions, 0 deletions

diff --git a/drivers/w1/slaves/w1_ds2760.c b/drivers/w1/slaves/w1_ds2760.c
index 1f09d4e4144c..59f708efe25f 100644
--- a/drivers/w1/slaves/w1_ds2760.c
+++ b/drivers/w1/slaves/w1_ds2760.c
@@ -68,6 +68,34 @@ int w1_ds2760_write(struct device *dev, char *buf, int addr, size_t count)
         return w1_ds2760_io(dev, buf, addr, count, 1);
 }
 
+static int w1_ds2760_eeprom_cmd(struct device *dev, int addr, int cmd)
+{
+        struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
+
+        if (!dev)
+                return -EINVAL;
+
+        mutex_lock(&sl->master->mutex);
+
+        if (w1_reset_select_slave(sl) == 0) {
+                w1_write_8(sl->master, cmd);
+                w1_write_8(sl->master, addr);
+        }
+
+        mutex_unlock(&sl->master->mutex);
+        return 0;
+}
+
+int w1_ds2760_store_eeprom(struct device *dev, int addr)
+{
+        return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_COPY_DATA);
+}
+
+int w1_ds2760_recall_eeprom(struct device *dev, int addr)
+{
+        return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_RECALL_DATA);
+}
+
 static ssize_t w1_ds2760_read_bin(struct kobject *kobj,
                                   struct bin_attribute *bin_attr,
                                   char *buf, loff_t off, size_t count)
@@ -200,6 +228,8 @@ static void __exit w1_ds2760_exit(void)
 
 EXPORT_SYMBOL(w1_ds2760_read);
 EXPORT_SYMBOL(w1_ds2760_write);
+EXPORT_SYMBOL(w1_ds2760_store_eeprom);
+EXPORT_SYMBOL(w1_ds2760_recall_eeprom);
 
 module_init(w1_ds2760_init);
 module_exit(w1_ds2760_exit);
diff --git a/drivers/w1/slaves/w1_ds2760.h b/drivers/w1/slaves/w1_ds2760.h
index f1302429cb02..58e774141568 100644
--- a/drivers/w1/slaves/w1_ds2760.h
+++ b/drivers/w1/slaves/w1_ds2760.h
@@ -25,6 +25,10 @@
 
 #define DS2760_PROTECTION_REG           0x00
 #define DS2760_STATUS_REG               0x01
+        #define DS2760_STATUS_IE        (1 << 2)
+        #define DS2760_STATUS_SWEN      (1 << 3)
+        #define DS2760_STATUS_RNAOP     (1 << 4)
+        #define DS2760_STATUS_PMOD      (1 << 5)
 #define DS2760_EEPROM_REG               0x07
 #define DS2760_SPECIAL_FEATURE_REG      0x08
 #define DS2760_VOLTAGE_MSB              0x0c
@@ -38,6 +42,7 @@
 #define DS2760_EEPROM_BLOCK0            0x20
 #define DS2760_ACTIVE_FULL              0x20
 #define DS2760_EEPROM_BLOCK1            0x30
+#define DS2760_STATUS_WRITE_REG         0x31
 #define DS2760_RATED_CAPACITY           0x32
 #define DS2760_CURRENT_OFFSET_BIAS      0x33
 #define DS2760_ACTIVE_EMPTY             0x3b
@@ -46,5 +51,7 @@ extern int w1_ds2760_read(struct device *dev, char *buf, int addr,
                           size_t count);
 extern int w1_ds2760_write(struct device *dev, char *buf, int addr,
                            size_t count);
+extern int w1_ds2760_store_eeprom(struct device *dev, int addr);
+extern int w1_ds2760_recall_eeprom(struct device *dev, int addr);
 
 #endif /* !__w1_ds2760_h__ */