zynqmp: pm: update error codes to match Linux and PMU Firmware

All EEMI error codes start with value 2000.

Note: Legacy error codes ARGS (=1) and NOTSUPPORTED (=4) returned by
current ATF code have been left in place.
Signed-off-by: Davorin Mista <davorin.mista@aggios.com>
Acked-by: Will Wong <WILLW@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Change-Id: I939afa85957cac88025d82a80f9f6dd49be993b6

plat/xilinx/zynqmp/pm_service/pm_defs.h

@@ -215,26 +215,29 @@ enum pm_opchar_type {
 
 /**
  * @PM_RET_SUCCESS:		success
- * @PM_RET_ERROR_ARGS:		illegal arguments provided
+ * @PM_RET_ERROR_ARGS:		illegal arguments provided (deprecated)
+ * @PM_RET_ERROR_NOTSUPPORTED:	feature not supported  (deprecated)
+ * @PM_RET_ERROR_INTERNAL:	internal error
+ * @PM_RET_ERROR_CONFLICT:	conflict
  * @PM_RET_ERROR_ACCESS:	access rights violation
+ * @PM_RET_ERROR_INVALID_NODE:	invalid node
+ * @PM_RET_ERROR_DOUBLE_REQ:	duplicate request for same node
+ * @PM_RET_ERROR_ABORT_SUSPEND:	suspend procedure has been aborted
  * @PM_RET_ERROR_TIMEOUT:	timeout in communication with PMU
- * @PM_RET_ERROR_NOTSUPPORTED:	feature not supported
- * @PM_RET_ERROR_PROC:		node is not a processor node
- * @PM_RET_ERROR_API_ID:	illegal API ID
- * @PM_RET_ERROR_OTHER:		other error
+ * @PM_RET_ERROR_NODE_USED:	node is already in use
  */
 enum pm_ret_status {
 	PM_RET_SUCCESS,
-	PM_RET_ERROR_ARGS,
-	PM_RET_ERROR_ACCESS,
-	PM_RET_ERROR_TIMEOUT,
-	PM_RET_ERROR_NOTSUPPORTED,
-	PM_RET_ERROR_PROC,
-	PM_RET_ERROR_API_ID,
-	PM_RET_ERROR_FAILURE,
-	PM_RET_ERROR_COMMUNIC,
-	PM_RET_ERROR_DOUBLEREQ,
-	PM_RET_ERROR_OTHER,
+	PM_RET_ERROR_ARGS = 1,
+	PM_RET_ERROR_NOTSUPPORTED = 4,
+	PM_RET_ERROR_INTERNAL = 2000,
+	PM_RET_ERROR_CONFLICT = 2001,
+	PM_RET_ERROR_ACCESS = 2002,
+	PM_RET_ERROR_INVALID_NODE = 2003,
+	PM_RET_ERROR_DOUBLE_REQ = 2004,
+	PM_RET_ERROR_ABORT_SUSPEND = 2005,
+	PM_RET_ERROR_TIMEOUT = 2006,
+	PM_RET_ERROR_NODE_USED = 2007
 };
 
 /**