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

* git://git.infradead.org/battery-2.6:
  power_supply_sysfs: Handle -ENODATA in a special way
  wm831x_backup: Remove unused variables
  gta02: Set pcf50633 charger_reference_current_ma
  pcf50633: Query charger status directly
  pcf50633: Properly reenable charging when the supply conditions change
  pcf50633: Get rid of charging restart software auto-triggering
  pcf50633: introduces battery charging current control
  pcf50633: Add ac power supply class to the charger
  wm831x: Factor out WM831x backup battery charger

arch/arm/mach-s3c2442/mach-gta02.c

@@ -268,6 +268,9 @@ struct pcf50633_platform_data gta02_pcf_pdata = {
 
 	.batteries = gta02_batteries,
 	.num_batteries = ARRAY_SIZE(gta02_batteries),
+
+	.charger_reference_current_ma = 1000,
+
 	.reg_init_data = {
 		[PCF50633_REGULATOR_AUTO] = {
 			.constraints = {

drivers/mfd/wm831x-core.c

@@ -808,6 +808,9 @@ static struct resource wm831x_wdt_resources[] = {
 };
 
 static struct mfd_cell wm8310_devs[] = {
+	{
+		.name = "wm831x-backup",
+	},
 	{
 		.name = "wm831x-buckv",
 		.id = 1,
@@ -961,6 +964,9 @@ static struct mfd_cell wm8310_devs[] = {
 };
 
 static struct mfd_cell wm8311_devs[] = {
+	{
+		.name = "wm831x-backup",
+	},
 	{
 		.name = "wm831x-buckv",
 		.id = 1,
@@ -1095,6 +1101,9 @@ static struct mfd_cell wm8311_devs[] = {
 };
 
 static struct mfd_cell wm8312_devs[] = {
+	{
+		.name = "wm831x-backup",
+	},
 	{
 		.name = "wm831x-buckv",
 		.id = 1,

drivers/power/Kconfig

@@ -29,6 +29,13 @@ config APM_POWER
 	  Say Y here to enable support APM status emulation using
 	  battery class devices.
 
+config WM831X_BACKUP
+	tristate "WM831X backup battery charger support"
+	depends on MFD_WM831X
+	help
+	  Say Y here to enable support for the backup battery charger
+	  in the Wolfson Microelectronics WM831x PMICs.
+
 config WM831X_POWER
 	tristate "WM831X PMU support"
 	depends on MFD_WM831X

drivers/power/Makefile

@@ -16,6 +16,7 @@ obj-$(CONFIG_POWER_SUPPLY)	+= power_supply.o
 
 obj-$(CONFIG_PDA_POWER)		+= pda_power.o
 obj-$(CONFIG_APM_POWER)		+= apm_power.o
+obj-$(CONFIG_WM831X_BACKUP)	+= wm831x_backup.o
 obj-$(CONFIG_WM831X_POWER)	+= wm831x_power.o
 obj-$(CONFIG_WM8350_POWER)	+= wm8350_power.o