firmware: arm_scmi: increase mailbox timeout

jamike · ADESTM · commit 342bb320b8bc · 2026-06-01T16:30:14.000+02:00
During linux stress test, arm-scmi timeout is observed. Since the scp firmware maximum timeout to perform a request is 200ms. the max_rx_timeout_ms is set to these value. Change-Id: I9e8dc53ffbd7e75f0cbdca41daa3a9f7e972516e Signed-off-by: Michel JAOUEN <michel.jaouen@st.com> Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/566811 Domain-Review: Christophe KERELLO <christophe.kerello@st.com> ACI: CITOOLS <MDG-smet-aci-reviews@list.st.com> ACI: CIBUILD <MDG-smet-aci-builds@list.st.com> Reviewed-by: Christophe KERELLO <christophe.kerello@st.com>
diff --git a/drivers/firmware/arm_scmi/mailbox.c b/drivers/firmware/arm_scmi/mailbox.c
@@ -336,7 +336,7 @@ static const struct scmi_transport_ops scmi_mailbox_ops = {
 
 const struct scmi_desc scmi_mailbox_desc = {
 	.ops = &scmi_mailbox_ops,
-	.max_rx_timeout_ms = 100, /* We may increase this if required */
+	.max_rx_timeout_ms = 200, /* We may increase this if required */
 	.max_msg = 20, /* Limited by MBOX_TX_QUEUE_LEN */
 	.max_msg_size = 128,
 };
