net: dsa: realtek: Fix LED group port bit for non-zero LED group

The rtl8366rb_led_group_port_mask() function always returns LED port bit in LED group 0; the switch statement returns the same thing in all non-default cases.

This means that the driver does not currently support configuring LEDs in non-zero LED groups.

Fix this.

---
I was just looking at the driver code ouf of curiosity and saw this.

I don't have corresponing hardware nor documentation.

But it seems to be a copy-paste mistake from early driver development that was not fixed later, maybe because the original developer had only a board with port LEDs in LED group 0...

---
 drivers/net/dsa/realtek/rtl8366rb-leds.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

index 99c890681ae6..509ffd3f8db5 100644
@@ -12,11 +12,11 @@ static inline u32 rtl8366rb_led_group_port_mask(u8 led_group, u8 port)
 	case 0:
 		return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port));
 	case 1:
-		return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port));
+		return FIELD_PREP(RTL8366RB_LED_X_1_CTRL_MASK, BIT(port));
 	case 2:
-		return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port));
+		return FIELD_PREP(RTL8366RB_LED_2_X_CTRL_MASK, BIT(port));
 	case 3:
-		return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port));
+		return FIELD_PREP(RTL8366RB_LED_X_3_CTRL_MASK, BIT(port));
 	default:
 		return 0;
 	}

2.52.0

Patch looks sensible.

Andrew