diff --git a/[refs] b/[refs]
index 27df74193c02..25685257e4b4 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a61cd03827eceefcec19eefc6e1173703fdc5e5d
+refs/heads/master: e47c4f70ea41fd973eec80a9388a1347d3d27896
diff --git a/trunk/drivers/input/serio/at32psif.c b/trunk/drivers/input/serio/at32psif.c
index 50bdc00c49d7..b54452a8c771 100644
--- a/trunk/drivers/input/serio/at32psif.c
+++ b/trunk/drivers/input/serio/at32psif.c
@@ -137,7 +137,7 @@ static int psif_write(struct serio *io, unsigned char val)
 	spin_lock_irqsave(&psif->lock, flags);
 
 	while (!(psif_readl(psif, SR) & PSIF_BIT(TXEMPTY)) && timeout--)
-		msleep(10);
+		udelay(50);
 
 	if (timeout >= 0) {
 		psif_writel(psif, THR, val);