Merge tag 'for-v3.20' of git://git.infradead.org/battery-2.6

Pull power supply and reset changes from Sebastian Reichel:
 "New drivers:
   - charger driver for Maxim 77693
   - battery gauge driver for LTC 2941/2943
   - battery gauge driver for RT5033
   - reset driver for R-Mobile platforms

  Convert drivers to restart handler framework:
   - arm-versatile
   - at91
   - st-poweroff

  Misc:
   - remove deprecated sun6i reboot driver
   - use alarmtimer instead of rtc in charger-manager
   - misc fixes"

* tag 'for-v3.20' of git://git.infradead.org/battery-2.6: (48 commits)
  power_supply: 88pm860x: Fix leaked power supply on probe fail
  power/reset: restart-poweroff: Remove arm dependencies
  power/reset: st-poweroff: Fix misleading Kconfig description
  power/reset: st-poweroff: Register with kernel restart handler
  power/reset: Remove sun6i reboot driver
  power/reset: at91: Register with kernel restart handler
  power/reset: arm-versatile: Register with kernel restart handler
  power: test_power: Use enum as index for array of supplies
  Add devicetree binding documentation for the LTC2941/LTC2943 driver
  Add LTC2941/LTC2943 Battery Gauge Driver
  power/reset: brcmstb: Add support for old 65nm chips
  power/reset: brcmstb: Use the DT "compatible" string to indicate bit positions
  power/reset: brcmstb: Make the driver buildable on MIPS
  power: charger-manager: Use alarmtimer for battery monitoring in suspend.
  power/reset: at91-poweroff: Fix error handling and other compiler warnings
  bq27x00_battery: Call power_supply_changed only when capacity changed
  bq27x00_battery: fix register offset for bq27425
  power: max14577: Remove SYSFS dependency from Kconfig
  power: bq24190_charger: suppress build warning
  power: reset: Add reset driver for R-Mobile platforms
  ...

4 files changed, 83 insertions, 6 deletions

diff --git a/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt b/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt
index 3c436cc4f35d..430608ec09f0 100644
--- a/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt
+++ b/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt
@@ -79,7 +79,9 @@ reboot
 Required properties
 
     - compatible
-        The string property "brcm,brcmstb-reboot".
+        The string property "brcm,brcmstb-reboot" for 40nm/28nm chips with
+        the new SYS_CTRL interface, or "brcm,bcm7038-reboot" for 65nm
+        chips with the old SUN_TOP_CTRL interface.
 
     - syscon
         A phandle / integer array that points to the syscon node which describes
diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt
index 01e9f30fe678..38e64405e98d 100644
--- a/Documentation/devicetree/bindings/mfd/max77693.txt
+++ b/Documentation/devicetree/bindings/mfd/max77693.txt
@@ -41,6 +41,41 @@ Optional properties:
          To get more informations, please refer to documentaion.
         [*] refer Documentation/devicetree/bindings/pwm/pwm.txt
 
+- charger : Node configuring the charger driver.
+  If present, required properties:
+  - compatible : Must be "maxim,max77693-charger".
+
+  Optional properties (if not set, defaults will be used):
+  - maxim,constant-microvolt : Battery constant voltage in uV. The charger
+    will operate in fast charge constant current mode till battery voltage
+    reaches this level. Then the charger will switch to fast charge constant
+    voltage mode. Also vsys (system voltage) will be set to this value when
+    DC power is supplied but charger is not enabled.
+    Valid values: 3650000 - 4400000, step by 25000 (rounded down)
+    Default: 4200000
+
+  - maxim,min-system-microvolt : Minimal system voltage in uV.
+    Valid values: 3000000 - 3700000, step by 100000 (rounded down)
+    Default: 3600000
+
+  - maxim,thermal-regulation-celsius : Temperature in Celsius for entering
+    high temperature charging mode. If die temperature exceeds this value
+    the charging current will be reduced by 105 mA/Celsius.
+    Valid values: 70, 85, 100, 115
+    Default: 100
+
+  - maxim,battery-overcurrent-microamp : Overcurrent protection threshold
+    in uA (current from battery to system).
+    Valid values: 2000000 - 3500000, step by 250000 (rounded down)
+    Default: 3500000
+
+  - maxim,charge-input-threshold-microvolt : Threshold voltage in uV for
+    triggering input voltage regulation loop. If input voltage decreases
+    below this value, the input current will be reduced to reach the
+    threshold voltage.
+    Valid values: 4300000, 4700000, 4800000, 4900000
+    Default: 4300000
+
 Example:
         max77693@66 {
                 compatible = "maxim,max77693";
@@ -73,4 +108,14 @@ Example:
                         pwms = <&pwm 0 40000 0>;
                         pwm-names = "haptic";
                 };
+
+                charger {
+                        compatible = "maxim,max77693-charger";
+
+                        maxim,constant-microvolt = <4200000>;
+                        maxim,min-system-microvolt = <3600000>;
+                        maxim,thermal-regulation-celsius = <75>;
+                        maxim,battery-overcurrent-microamp = <3000000>;
+                        maxim,charge-input-threshold-microvolt = <4300000>;
+                };
         };
diff --git a/Documentation/devicetree/bindings/power/ltc2941.txt b/Documentation/devicetree/bindings/power/ltc2941.txt
new file mode 100644
index 000000000000..ea42ae12d924
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/ltc2941.txt
@@ -0,0 +1,27 @@
+binding for LTC2941 and LTC2943 battery gauges
+
+Both the LTC2941 and LTC2943 measure battery capacity.
+The LTC2943 is compatible with the LTC2941, it adds voltage and
+temperature monitoring, and uses a slightly different conversion
+formula for the charge counter.
+
+Required properties:
+- compatible: Should contain "ltc2941" or "ltc2943" which also indicates the
+    type of I2C chip attached.
+- reg: The 7-bit I2C address.
+- lltc,resistor-sense: The sense resistor value in milli-ohms. Can be a 32-bit
+    negative value when the battery has been connected to the wrong end of the
+    resistor.
+- lltc,prescaler-exponent: The prescaler exponent as explained in the datasheet.
+    This determines the range and accuracy of the gauge. The value is programmed
+    into the chip only if it differs from the current setting. The setting is
+    lost when the battery is disconnected.
+
+Example from the Topic Miami Florida board:
+
+        fuelgauge: ltc2943@64 {
+                compatible = "ltc2943";
+                reg = <0x64>;
+                lltc,resistor-sense = <15>;
+                lltc,prescaler-exponent = <5>; /* 2^(2*5) = 1024 */
+        };
diff --git a/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt b/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt
index 0c94c637f63b..cd2d7f58a9d7 100644
--- a/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt
+++ b/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt
@@ -1,20 +1,23 @@
 Binding for the LTC2952 PowerPath controller
 
 This chip is used to externally trigger a system shut down. Once the trigger has
-been sent, the chips' watchdog has to be reset to gracefully shut down.
-If the Linux systems decides to shut down it powers off the platform via the
-kill signal.
+been sent, the chip's watchdog has to be reset to gracefully shut down.
+A full powerdown can be triggered via the kill signal.
 
 Required properties:
 
 - compatible:           Must contain: "lltc,ltc2952"
-- trigger-gpios:        phandle + gpio-specifier for the GPIO connected to the
-                        chip's trigger line
 - watchdog-gpios:       phandle + gpio-specifier for the GPIO connected to the
                         chip's watchdog line
 - kill-gpios:           phandle + gpio-specifier for the GPIO connected to the
                         chip's kill line
 
+Optional properties:
+- trigger-gpios:        phandle + gpio-specifier for the GPIO connected to the
+                        chip's trigger line. If this property is not set, the
+                        trigger function is ignored and the chip is kept alive
+                        until an explicit kill signal is received
+
 Example:
 
 ltc2952 {