diff --git a/drivers/media/i2c/ds90ub960.c b/drivers/media/i2c/ds90ub960.c
index eb833d3f0405..670edb1e3e75 100644
--- a/drivers/media/i2c/ds90ub960.c
+++ b/drivers/media/i2c/ds90ub960.c
@@ -54,6 +54,15 @@
 
 #define MHZ(v) ((u32)((v) * HZ_PER_MHZ))
 
+/*
+ * If this is defined, the i2c addresses from UB960_DEBUG_I2C_RX_ID to
+ * UB960_DEBUG_I2C_RX_ID + 3 can be used to access the paged RX port registers
+ * directly.
+ *
+ * Only for debug purposes.
+ */
+/* #define UB960_DEBUG_I2C_RX_ID	0x40 */
+
 #define UB960_POLL_TIME_MS	500
 
 #define UB960_MAX_RX_NPORTS	4
@@ -350,7 +359,7 @@
 #define UB960_SR_FPD3_RX_ID(n)			(0xf0 + (n))
 #define UB960_SR_FPD3_RX_ID_LEN			6
 
-#define UB960_SR_I2C_RX_ID(n)			(0xf8 + (n)) /* < UB960_FPD_RX_NPORTS */
+#define UB960_SR_I2C_RX_ID(n)			(0xf8 + (n))
 
 #define UB9702_SR_REFCLK_FREQ			0x3d
 
@@ -3998,6 +4007,12 @@ static int ub960_probe(struct i2c_client *client)
 	schedule_delayed_work(&priv->poll_work,
 			      msecs_to_jiffies(UB960_POLL_TIME_MS));
 
+#ifdef UB960_DEBUG_I2C_RX_ID
+	for (unsigned int i = 0; i < priv->hw_data->num_rxports; i++)
+		ub960_write(priv, UB960_SR_I2C_RX_ID(i),
+			    (UB960_DEBUG_I2C_RX_ID + i) << 1);
+#endif
+
 	return 0;
 
 err_free_sers: