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hwmon: (nct6775) Move config variable declarations and initializations

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Group configuration variable declarations and initialization together.
While this results in reading more registers than necessary for a given
chip, it improves code readability and simplifies extending the code.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2018-09-18 09:46:24 -07:00
parent a6c54f2cde
commit 97ce6df468
1 changed files with 11 additions and 19 deletions
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30
drivers/hwmon/nct6775.c
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@ -3436,8 +3436,6 @@ 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 cr24;
int cr2c;
/* Store SIO_REG_ENABLE for use during resume */
superio_select(sioreg, NCT6775_LD_HWM);
@ -3445,7 +3443,7 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
/* fan4 and fan5 share some pins with the GPIO and serial flash */
if (data->kind == nct6775) {
cr2c = superio_inb(sioreg, 0x2c);
int cr2c = superio_inb(sioreg, 0x2c);
fan3pin = cr2c & BIT(6);
pwm3pin = cr2c & BIT(7);
@ -3493,17 +3491,20 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
fan4min = fan4pin;
pwm3pin = fan3pin;
} else if (data->kind == nct6106) {
cr24 = superio_inb(sioreg, 0x24);
int 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;
cr1c = superio_inb(sioreg, 0x1c);
int cr1b = superio_inb(sioreg, 0x1b);
int cr1c = superio_inb(sioreg, 0x1c);
int cr1d = superio_inb(sioreg, 0x1d);
int cr2a = superio_inb(sioreg, 0x2a);
int cr2b = superio_inb(sioreg, 0x2b);
int cr2d = superio_inb(sioreg, 0x2d);
int cr2f = superio_inb(sioreg, 0x2f);
bool dsw_en = cr2f & BIT(3);
fan3pin = !(cr1c & BIT(5));
fan4pin = !(cr1c & BIT(6));
@ -3513,7 +3514,6 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
pwm4pin = !(cr1c & BIT(1));
pwm5pin = !(cr1c & BIT(2));
cr2d = superio_inb(sioreg, 0x2d);
switch (data->kind) {
case nct6791:
case nct6792:
@ -3523,11 +3523,6 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
case nct6793:
case nct6795:
case nct6796:
cr1b = superio_inb(sioreg, 0x1b);
cr2a = superio_inb(sioreg, 0x2a);
cr2f = superio_inb(sioreg, 0x2f);
dsw_en = cr2f & BIT(3);
if (!pwm5pin)
pwm5pin = cr2d & BIT(7);
@ -3566,9 +3561,6 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
}
if (data->kind == nct6796) {
int cr1d = superio_inb(sioreg, 0x1d);
int cr2b = superio_inb(sioreg, 0x2b);
fan7pin = !(cr2b & BIT(2));
pwm7pin = !(cr1d & (BIT(2) | BIT(3)));
}