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>
mariux64 · Oct 11, 2018 · 7dcdbde · 7dcdbde
1 parent b2833f3
commit 7dcdbde
Showing 1 changed file with 4 additions and 1 deletion.
diff --git 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: