diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index f052a3eb2098..7e3ed2714630 100644
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -1381,9 +1381,9 @@ static void flexrm_shutdown(struct mbox_chan *chan)
 
 	/* Clear ring flush state */
 	timeout = 1000; /* timeout of 1s */
-	writel_relaxed(0x0, ring + RING_CONTROL);
+	writel_relaxed(0x0, ring->regs + RING_CONTROL);
 	do {
-		if (!(readl_relaxed(ring + RING_FLUSH_DONE) &
+		if (!(readl_relaxed(ring->regs + RING_FLUSH_DONE) &
 		      FLUSH_DONE_MASK))
 			break;
 		mdelay(1);