s390/scm: process availability

Let the bus code process scm availability information and
notify scm device drivers about the new state.

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index 78141be..dc9200c 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -98,7 +98,7 @@
 #define OP_STATE_TEMP_ERR	2
 #define OP_STATE_PERM_ERR	3
 
-enum scm_event {SCM_CHANGE};
+enum scm_event {SCM_CHANGE, SCM_AVAIL};
 
 struct scm_driver {
 	struct device_driver drv;