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path: root/drivers/firmware/arm_scmi/mailbox.c
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Diffstat (limited to 'drivers/firmware/arm_scmi/mailbox.c')
-rw-r--r--drivers/firmware/arm_scmi/mailbox.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/firmware/arm_scmi/mailbox.c b/drivers/firmware/arm_scmi/mailbox.c
index 4626404be541..e3dcb58314ae 100644
--- a/drivers/firmware/arm_scmi/mailbox.c
+++ b/drivers/firmware/arm_scmi/mailbox.c
@@ -69,6 +69,9 @@ static int mailbox_chan_setup(struct scmi_chan_info *cinfo, struct device *dev,
return -ENOMEM;
shmem = of_parse_phandle(cdev->of_node, "shmem", idx);
+ if (!of_device_is_compatible(shmem, "arm,scmi-shmem"))
+ return -ENXIO;
+
ret = of_address_to_resource(shmem, 0, &res);
of_node_put(shmem);
if (ret) {