[PATCH 3/3] remoteproc: zynqmp: release mailbox channels on shutdown

Tanmay Shah
2026-03-03T23:51:49Z

mailbox driver can't introduce shutdown callback, as it might endup
closing mbox channels prematurely. By allowing the client driver to
manage the shutdown process, it's ensured that mailbox channels are
closed only when they are no longer needed.

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
---
drivers/remoteproc/xlnx_r5_remoteproc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/remoteproc/xlnx_r5_remoteproc.c b/drivers/remoteproc/xlnx_r5_remoteproc.c
index 5e92dc51f1c0..50a9974f3202 100644
--- a/drivers/remoteproc/xlnx_r5_remoteproc.c
+++ b/drivers/remoteproc/xlnx_r5_remoteproc.c
@@ -1490,6 +1490,8 @@ static void zynqmp_r5_remoteproc_shutdown(struct platform_device *pdev)
dev_err(cluster->dev, "failed to %s rproc %d\n",
rproc_state_str, rproc->index);
}
+
+ zynqmp_r5_free_mbox(r5_core->ipi);
}
}

--
2.34.1