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-rw-r--r--drivers/i3c/device.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/i3c/device.c b/drivers/i3c/device.c
index 1a6a8703db..e80e487569 100644
--- a/drivers/i3c/device.c
+++ b/drivers/i3c/device.c
@@ -27,6 +27,10 @@
* This function can sleep and thus cannot be called in atomic context.
*
* Return: 0 in case of success, a negative error core otherwise.
+ * -EAGAIN: controller lost address arbitration. Target
+ * (IBI, HJ or controller role request) win the bus. Client
+ * driver needs to resend the 'xfers' some time later.
+ * See I3C spec ver 1.1.1 09-Jun-2021. Section: 5.1.2.2.3.
*/
int i3c_device_do_priv_xfers(struct i3c_device *dev,
struct i3c_priv_xfer *xfers,