power: bq27xxx_battery: Fix typos and change naming for state of charge functions

Fix typos and change "relative state of charge" to "state of charge" as not
all supported devices use relative state of charge.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

drivers/power/bq27xxx_battery.c

@@ -229,26 +229,26 @@ static bool bq27xxx_is_chip_version_higher(struct bq27xxx_device_info *di)
 }
 
 /*
- * Return the battery Relative State-of-Charge
+ * Return the battery State-of-Charge
  * Or < 0 if something fails.
  */
-static int bq27xxx_battery_read_rsoc(struct bq27xxx_device_info *di)
+static int bq27xxx_battery_read_soc(struct bq27xxx_device_info *di)
 {
-	int rsoc;
+	int soc;
 
 	if (di->chip == BQ27500 || di->chip == BQ27742)
-		rsoc = bq27xxx_read(di, BQ27500_REG_SOC, false);
+		soc = bq27xxx_read(di, BQ27500_REG_SOC, false);
 	else if (di->chip == BQ27510)
-		rsoc = bq27xxx_read(di, BQ27510_REG_SOC, false);
+		soc = bq27xxx_read(di, BQ27510_REG_SOC, false);
 	else if (di->chip == BQ27425)
-		rsoc = bq27xxx_read(di, BQ27425_REG_SOC, false);
-	else
-		rsoc = bq27xxx_read(di, BQ27000_REG_RSOC, true);
+		soc = bq27xxx_read(di, BQ27425_REG_SOC, false);
+	else /* for the bq27000 we read the "relative" SoC register */
+		soc = bq27xxx_read(di, BQ27000_REG_RSOC, true);
 
-	if (rsoc < 0)
-		dev_dbg(di->dev, "error reading relative State-of-Charge\n");
+	if (soc < 0)
+		dev_dbg(di->dev, "error reading State-of-Charge\n");
 
-	return rsoc;
+	return soc;
 }
 
 /*
@@ -275,7 +275,7 @@ static int bq27xxx_battery_read_charge(struct bq27xxx_device_info *di, u8 reg)
 }
 
 /*
- * Return the battery Nominal available capaciy in µAh
+ * Return the battery Nominal available capacity in µAh
  * Or < 0 if something fails.
  */
 static inline int bq27xxx_battery_read_nac(struct bq27xxx_device_info *di)
@@ -416,7 +416,7 @@ static int bq27xxx_battery_read_time(struct bq27xxx_device_info *di, u8 reg)
 }
 
 /*
- * Read a power avg register.
+ * Read an average power register.
  * Return < 0 if something fails.
  */
 static int bq27xxx_battery_read_pwr_avg(struct bq27xxx_device_info *di, u8 reg)
@@ -498,7 +498,7 @@ static void bq27xxx_battery_update(struct bq27xxx_device_info *di)
 			cache.charge_full = -ENODATA;
 			cache.health = -ENODATA;
 		} else {
-			cache.capacity = bq27xxx_battery_read_rsoc(di);
+			cache.capacity = bq27xxx_battery_read_soc(di);
 			if (is_bq27742 || is_bq27510)
 				cache.time_to_empty =
 					bq27xxx_battery_read_time(di,