Pass options to init functions.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
diff --git a/sensor.c b/sensor.c
index 008b662..3b37bc6 100644
--- a/sensor.c
+++ b/sensor.c
@@ -295,10 +295,13 @@
 	.display = sensor_display,
 };
 
-int sensor_init(void)
+int sensor_init(struct powerdebug_options *options)
 {
 	int ret = 0;
 
+	if (!(options->flags & SENSOR_OPTION))
+		return 0;
+
 	ret = display_register(SENSOR, &sensor_ops);
 	if (ret)
 		printf("error: sensor display register failed");