[PATCH] i3c: dw: reduce do_daa time if there's no client

If there's no client, wait for completion will timeout, then there's no
need to add i3c dev at all. This can save boot time by ~6s if there's
no client connected to the i3c interface.

Signed-off-by: Jisheng Zhang <[email protected]>
---
 drivers/i3c/master/dw-i3c-master.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index 0625587f1527..18ebf304029a 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -885,8 +885,10 @@ static int dw_i3c_master_daa(struct i3c_master_controller *m)
 		      COMMAND_PORT_ROC;
 
 	dw_i3c_master_enqueue_xfer(master, xfer);
-	if (!wait_for_completion_timeout(&xfer->comp, XFER_TIMEOUT))
+	if (!wait_for_completion_timeout(&xfer->comp, XFER_TIMEOUT)) {
 		dw_i3c_master_dequeue_xfer(master, xfer);
+		goto rpm_out;
+	}
 
 	newdevs = GENMASK(master->maxdevs - cmd->rx_len - 1, 0);
 	newdevs &= ~olddevs;
-- 
2.53.0


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