hwmon: (nct6775) Replace 'regval' with variables named after config registers

Using variables named after configuration registers makes it more obvious
which configuration register value is used, especially if more than one
configuration register value is used to determine a configuration detail.

No functional change.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/nct6775.c

@@ -3436,7 +3436,8 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 	bool pwm3pin = false, pwm4pin = false, pwm5pin = false;
 	bool pwm6pin = false, pwm7pin = false;
 	int sioreg = data->sioreg;
-	int regval;
+	int cr24;
+	int cr2c;
 
 	/* Store SIO_REG_ENABLE for use during resume */
 	superio_select(sioreg, NCT6775_LD_HWM);
@@ -3444,10 +3445,10 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 
 	/* fan4 and fan5 share some pins with the GPIO and serial flash */
 	if (data->kind == nct6775) {
-		regval = superio_inb(sioreg, 0x2c);
+		cr2c = superio_inb(sioreg, 0x2c);
 
-		fan3pin = regval & BIT(6);
-		pwm3pin = regval & BIT(7);
+		fan3pin = cr2c & BIT(6);
+		pwm3pin = cr2c & BIT(7);
 
 		/* On NCT6775, fan4 shares pins with the fdc interface */
 		fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
@@ -3492,30 +3493,32 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 		fan4min = fan4pin;
 		pwm3pin = fan3pin;
 	} else if (data->kind == nct6106) {
-		regval = superio_inb(sioreg, 0x24);
-		fan3pin = !(regval & 0x80);
-		pwm3pin = regval & 0x08;
+		cr24 = superio_inb(sioreg, 0x24);
+		fan3pin = !(cr24 & 0x80);
+		pwm3pin = cr24 & 0x08;
 	} else {
 		/* NCT6779D, NCT6791D, NCT6792D, NCT6793D, NCT6795D, NCT6796D */
 		int cr1b, cr2a, cr2f;
+		int cr1c;
+		int cr2d;
 		bool dsw_en;
 
-		regval = superio_inb(sioreg, 0x1c);
+		cr1c = superio_inb(sioreg, 0x1c);
 
-		fan3pin = !(regval & BIT(5));
-		fan4pin = !(regval & BIT(6));
-		fan5pin = !(regval & BIT(7));
+		fan3pin = !(cr1c & BIT(5));
+		fan4pin = !(cr1c & BIT(6));
+		fan5pin = !(cr1c & BIT(7));
 
-		pwm3pin = !(regval & BIT(0));
-		pwm4pin = !(regval & BIT(1));
-		pwm5pin = !(regval & BIT(2));
+		pwm3pin = !(cr1c & BIT(0));
+		pwm4pin = !(cr1c & BIT(1));
+		pwm5pin = !(cr1c & BIT(2));
 
-		regval = superio_inb(sioreg, 0x2d);
+		cr2d = superio_inb(sioreg, 0x2d);
 		switch (data->kind) {
 		case nct6791:
 		case nct6792:
-			fan6pin = regval & BIT(1);
-			pwm6pin = regval & BIT(0);
+			fan6pin = cr2d & BIT(1);
+			pwm6pin = cr2d & BIT(0);
 			break;
 		case nct6793:
 		case nct6795:
@@ -3526,7 +3529,7 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 			dsw_en = cr2f & BIT(3);
 
 			if (!pwm5pin)
-				pwm5pin = regval & BIT(7);
+				pwm5pin = cr2d & BIT(7);
 
 			if (!fan5pin)
 				fan5pin = cr1b & BIT(5);
@@ -3536,8 +3539,8 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 				int creb = superio_inb(sioreg, 0xeb);
 
 				if (!dsw_en) {
-					fan6pin = regval & BIT(1);
-					pwm6pin = regval & BIT(0);
+					fan6pin = cr2d & BIT(1);
+					pwm6pin = cr2d & BIT(0);
 				}
 
 				if (!fan5pin)