parisc: Skip registering LED when running in QEMU

No need to spend CPU cycles when we run on QEMU. Signed-off-by: Helge Deller <[email protected]> CC: [email protected] # v4.9+
jerrinot · May 3, 2019 · b438749 · b438749
1 parent f30bfa6
commit b438749
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
@@ -568,6 +568,9 @@ int __init register_led_driver(int model, unsigned long cmd_reg, unsigned long d
 		break;
 
 	case DISPLAY_MODEL_LASI:
+		/* Skip to register LED in QEMU */
+		if (running_on_qemu)
+			return 1;
 		LED_DATA_REG = data_reg;
 		led_func_ptr = led_LASI_driver;
 		printk(KERN_INFO "LED display at %lx registered\n", LED_DATA_REG);