hwmon: (nct6775) Fix fan6/pwm6 detection for NCT6792D

Per datasheet, AUXFANIN3 (fan6) and AUXFANOUT3 (pwm6) are only connected
if DSW_EN is false.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 0ad4bf0..6e11df6 100644 (file)
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -3522,10 +3522,13 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 
                switch (data->kind) {
                case nct6791:
-               case nct6792:
                        fan6pin = cr2d & BIT(1);
                        pwm6pin = cr2d & BIT(0);
                        break;
+               case nct6792:
+                       fan6pin = !dsw_en && (cr2d & BIT(1));
+                       pwm6pin = !dsw_en && (cr2d & BIT(0));
+                       break;
                case nct6793:
                case nct6795:
                case nct6796: