hwmon: (it87) Fix pwm4 detection for IT8620 and IT8628
authorGuenter Roeck <linux@roeck-us.net>
Wed, 8 Feb 2017 22:05:56 +0000 (14:05 -0800)
committerGuenter Roeck <linux@roeck-us.net>
Sat, 11 Feb 2017 05:35:08 +0000 (21:35 -0800)
pwm4 is enabled if bit 2 of GPIO control register 4 is disabled,
not when it is enabled. Since the check is for the skip condition,
it is reversed. This applies to both IT8620 and IT8628.

Fixes: 36c4d98a7883d ("hwmon: (it87) Add support for all pwm channels ...")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
drivers/hwmon/it87.c

index 85918d8..4f3fabc 100644 (file)
@@ -2614,7 +2614,7 @@ static int __init it87_find(int sioaddr, unsigned short *address,
 
                /* Check for pwm4 */
                reg = superio_inb(sioaddr, IT87_SIO_GPIO4_REG);
-               if (!(reg & BIT(2)))
+               if (reg & BIT(2))
                        sio_data->skip_pwm |= BIT(3);
 
                /* Check for pwm2, fan2 */