[PATCH 12/17] scmi: add the macro SCMI_MSG

[Alice Guo]

From: Peng Fan <peng.fan at nxp.com>

This patch adds the macro SCMI_MSG for protocols that do not need
_in_array.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
Signed-off-by: Alice Guo <alice.guo at nxp.com>
Reviewed-by: Ye Li <ye.li at nxp.com>
---
 include/scmi_agent.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/scmi_agent.h b/include/scmi_agent.h
index 755986d6c424ccc881ac0943a88735cbcfacb001..5508a126a6dc504afa6d896c78c760b1af0d3deb 100644
--- a/include/scmi_agent.h
+++ b/include/scmi_agent.h
@@ -54,6 +54,17 @@ struct scmi_msg {
 		.out_msg_sz = sizeof(_out_array),	\
 	}
 
+/* Helper macro to match a message on output array references */
+#define SCMI_MSG(_protocol, _message, _out_array)	\
+	(struct scmi_msg){				\
+		.protocol_id = (_protocol),		\
+		.message_id = (_message),		\
+		.in_msg = (uint8_t *)NULL,		\
+		.in_msg_sz = 0,				\
+		.out_msg = (uint8_t *)&(_out_array),	\
+		.out_msg_sz = sizeof(_out_array),	\
+	}
+
 /**
  * devm_scmi_of_get_channel() - Get SCMI channel handle from SCMI agent DT node
  *

-- 
2.34.1