From: Peng Fan <peng....@nxp.com>

This patch adds the macro SCMI_MSG for protocols that do not need
_in_array.
Signed-off-by: Peng Fan <peng....@nxp.com>
Signed-off-by: Alice Guo <alice....@nxp.com>
Reviewed-by: Ye Li <ye...@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

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