Merge tag 'for-v3.14-fixes' of git://git.infradead.org/battery-2.6

Pull battery fixes from Dmitry Eremin-Solenikov:

 - Fix NULL pointer dereference in max17040 driver

 - Add bq2415x dts bindings documentation

 - Fix misleading comment in ds2782 driver

 - Remove useless check in isp1704 charger driver.

* tag 'for-v3.14-fixes' of git://git.infradead.org/battery-2.6:
  power: max17040: Fix NULL pointer dereference when there is no platform_data
  dt: binding documentation for bq2415x charger
  isp1704_charger: remove useless check in isp1704_charger_probe()
  power: ds2782_battery: Typo in comment

4 files changed, 51 insertions, 5 deletions

diff --git a/Documentation/devicetree/bindings/power/bq2415x.txt b/Documentation/devicetree/bindings/power/bq2415x.txt
new file mode 100644
index 000000000000..d0327f0b59ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/bq2415x.txt
@@ -0,0 +1,47 @@
+Binding for TI bq2415x Li-Ion Charger
+
+Required properties:
+- compatible: Should contain one of the following:
+ * "ti,bq24150"
+ * "ti,bq24150"
+ * "ti,bq24150a"
+ * "ti,bq24151"
+ * "ti,bq24151a"
+ * "ti,bq24152"
+ * "ti,bq24153"
+ * "ti,bq24153a"
+ * "ti,bq24155"
+ * "ti,bq24156"
+ * "ti,bq24156a"
+ * "ti,bq24158"
+- reg:                     integer, i2c address of the device.
+- ti,current-limit:        integer, initial maximum current charger can pull
+                           from power supply in mA.
+- ti,weak-battery-voltage: integer, weak battery voltage threshold in mV.
+                           The chip will use slow precharge if battery voltage
+                           is below this value.
+- ti,battery-regulation-voltage: integer, maximum charging voltage in mV.
+- ti,charge-current:       integer, maximum charging current in mA.
+- ti,termination-current:  integer, charge will be terminated when current in
+                           constant-voltage phase drops below this value (in mA).
+- ti,resistor-sense:       integer, value of sensing resistor in milliohm.
+
+Optional properties:
+- ti,usb-charger-detection: phandle to usb charger detection device.
+                            (required for auto mode)
+
+Example from Nokia N900:
+
+bq24150a {
+        compatible = "ti,bq24150a";
+        reg = <0x6b>;
+
+        ti,current-limit = <100>;
+        ti,weak-battery-voltage = <3400>;
+        ti,battery-regulation-voltage = <4200>;
+        ti,charge-current = <650>;
+        ti,termination-current = <100>;
+        ti,resistor-sense = <68>;
+
+        ti,usb-charger-detection = <&isp1704>;
+};
diff --git a/drivers/power/ds2782_battery.c b/drivers/power/ds2782_battery.c
index 563174891c90..041f9b638d28 100644
--- a/drivers/power/ds2782_battery.c
+++ b/drivers/power/ds2782_battery.c
@@ -192,7 +192,7 @@ static int ds2786_get_voltage(struct ds278x_info *info, int *voltage_uV)
 
         /*
          * Voltage is measured in units of 1.22mV. The voltage is stored as
-         * a 10-bit number plus sign, in the upper bits of a 16-bit register
+         * a 12-bit number plus sign, in the upper bits of a 16-bit register
          */
         err = ds278x_read_reg16(info, DS278x_REG_VOLT_MSB, &raw);
         if (err)
diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index 80edb7d8cb54..0b4cf9d63291 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -444,8 +444,6 @@ static int isp1704_charger_probe(struct platform_device *pdev)
                 ret = PTR_ERR(isp->phy);
                 goto fail0;
         }
-        if (!isp->phy)
-                goto fail0;
 
         isp->dev = &pdev->dev;
         platform_set_drvdata(pdev, isp);
diff --git a/drivers/power/max17040_battery.c b/drivers/power/max17040_battery.c
index c7ff6d67f158..0fbac861080d 100644
--- a/drivers/power/max17040_battery.c
+++ b/drivers/power/max17040_battery.c
@@ -148,7 +148,7 @@ static void max17040_get_online(struct i2c_client *client)
 {
         struct max17040_chip *chip = i2c_get_clientdata(client);
 
-        if (chip->pdata->battery_online)
+        if (chip->pdata && chip->pdata->battery_online)
                 chip->online = chip->pdata->battery_online();
         else
                 chip->online = 1;
@@ -158,7 +158,8 @@ static void max17040_get_status(struct i2c_client *client)
 {
         struct max17040_chip *chip = i2c_get_clientdata(client);
 
-        if (!chip->pdata->charger_online || !chip->pdata->charger_enable) {
+        if (!chip->pdata || !chip->pdata->charger_online
+                        || !chip->pdata->charger_enable) {
                 chip->status = POWER_SUPPLY_STATUS_UNKNOWN;
                 return;
         }