[media] radio-si4713: improve querycap

Set bus_info and fill in device_caps.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Tested-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/radio/radio-si4713.c b/drivers/media/radio/radio-si4713.c
index 70dc652..f0f0a90 100644
--- a/drivers/media/radio/radio-si4713.c
+++ b/drivers/media/radio/radio-si4713.c
@@ -67,7 +67,10 @@
 	strlcpy(capability->driver, "radio-si4713", sizeof(capability->driver));
 	strlcpy(capability->card, "Silicon Labs Si4713 Modulator",
 		sizeof(capability->card));
-	capability->capabilities = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT;
+	strlcpy(capability->bus_info, "platform:radio-si4713",
+		sizeof(capability->bus_info));
+	capability->device_caps = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT;
+	capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS;
 
 	return 0;
 }