diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index fbf05097612f..4ac82166edc3 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -214,9 +214,9 @@ static void dsi_set_ulps_auto(struct dsi_data *dsi, bool enable);
 static int dsi_display_init_dispc(struct dsi_data *dsi);
 static void dsi_display_uninit_dispc(struct dsi_data *dsi);
 
-static int dsi_vc_send_null(struct dsi_data *dsi, int channel);
+static int dsi_vc_send_null(struct dsi_data *dsi, int vc, int channel);
 
-static ssize_t _omap_dsi_host_transfer(struct dsi_data *dsi,
+static ssize_t _omap_dsi_host_transfer(struct dsi_data *dsi, int vc,
 				       const struct mipi_dsi_msg *msg);
 
 static void dsi_display_disable(struct omap_dss_device *dssdev);
@@ -376,7 +376,7 @@ struct dsi_data {
 	/* space for a copy used by the interrupt handler */
 	struct dsi_isr_tables isr_tables_copy;
 
-	int update_channel;
+	int update_vc;
 #ifdef DSI_PERF_MEASURE
 	unsigned int update_bytes;
 #endif
@@ -639,7 +639,7 @@ static void print_irq_status(u32 status)
 #undef PIS
 }
 
-static void print_irq_status_vc(int channel, u32 status)
+static void print_irq_status_vc(int vc, u32 status)
 {
 	if (status == 0)
 		return;
@@ -650,7 +650,7 @@ static void print_irq_status_vc(int channel, u32 status)
 #define PIS(x) (status & DSI_VC_IRQ_##x) ? (#x " ") : ""
 
 	pr_debug("DSI VC(%d) IRQ 0x%x: %s%s%s%s%s%s%s%s%s\n",
-		channel,
+		vc,
 		status,
 		PIS(CS),
 		PIS(ECC_CORR),
@@ -1031,7 +1031,7 @@ static int dsi_unregister_isr(struct dsi_data *dsi, omap_dsi_isr_t isr,
 	return r;
 }
 
-static int dsi_register_isr_vc(struct dsi_data *dsi, int channel,
+static int dsi_register_isr_vc(struct dsi_data *dsi, int vc,
 			       omap_dsi_isr_t isr, void *arg, u32 mask)
 {
 	unsigned long flags;
@@ -1040,18 +1040,18 @@ static int dsi_register_isr_vc(struct dsi_data *dsi, int channel,
 	spin_lock_irqsave(&dsi->irq_lock, flags);
 
 	r = _dsi_register_isr(isr, arg, mask,
-			dsi->isr_tables.isr_table_vc[channel],
-			ARRAY_SIZE(dsi->isr_tables.isr_table_vc[channel]));
+			dsi->isr_tables.isr_table_vc[vc],
+			ARRAY_SIZE(dsi->isr_tables.isr_table_vc[vc]));
 
 	if (r == 0)
-		_omap_dsi_set_irqs_vc(dsi, channel);
+		_omap_dsi_set_irqs_vc(dsi, vc);
 
 	spin_unlock_irqrestore(&dsi->irq_lock, flags);
 
 	return r;
 }
 
-static int dsi_unregister_isr_vc(struct dsi_data *dsi, int channel,
+static int dsi_unregister_isr_vc(struct dsi_data *dsi, int vc,
 				 omap_dsi_isr_t isr, void *arg, u32 mask)
 {
 	unsigned long flags;
@@ -1060,11 +1060,11 @@ static int dsi_unregister_isr_vc(struct dsi_data *dsi, int channel,
 	spin_lock_irqsave(&dsi->irq_lock, flags);
 
 	r = _dsi_unregister_isr(isr, arg, mask,
-			dsi->isr_tables.isr_table_vc[channel],
-			ARRAY_SIZE(dsi->isr_tables.isr_table_vc[channel]));
+			dsi->isr_tables.isr_table_vc[vc],
+			ARRAY_SIZE(dsi->isr_tables.isr_table_vc[vc]));
 
 	if (r == 0)
-		_omap_dsi_set_irqs_vc(dsi, channel);
+		_omap_dsi_set_irqs_vc(dsi, vc);
 
 	spin_unlock_irqrestore(&dsi->irq_lock, flags);
 
@@ -2232,9 +2232,9 @@ static int dsi_force_tx_stop_mode_io(struct dsi_data *dsi)
 	return 0;
 }
 
-static bool dsi_vc_is_enabled(struct dsi_data *dsi, int channel)
+static bool dsi_vc_is_enabled(struct dsi_data *dsi, int vc)
 {
-	return REG_GET(dsi, DSI_VC_CTRL(channel), 0, 0);
+	return REG_GET(dsi, DSI_VC_CTRL(vc), 0, 0);
 }
 
 static void dsi_packet_sent_handler_vp(void *data, u32 mask)
@@ -2242,14 +2242,14 @@ static void dsi_packet_sent_handler_vp(void *data, u32 mask)
 	struct dsi_packet_sent_handler_data *vp_data =
 		(struct dsi_packet_sent_handler_data *) data;
 	struct dsi_data *dsi = vp_data->dsi;
-	const int channel = dsi->update_channel;
+	const int vc = dsi->update_vc;
 	u8 bit = dsi->te_enabled ? 30 : 31;
 
-	if (REG_GET(dsi, DSI_VC_TE(channel), bit, bit) == 0)
+	if (REG_GET(dsi, DSI_VC_TE(vc), bit, bit) == 0)
 		complete(vp_data->completion);
 }
 
-static int dsi_sync_vc_vp(struct dsi_data *dsi, int channel)
+static int dsi_sync_vc_vp(struct dsi_data *dsi, int vc)
 {
 	DECLARE_COMPLETION_ONSTACK(completion);
 	struct dsi_packet_sent_handler_data vp_data = {
@@ -2261,13 +2261,13 @@ static int dsi_sync_vc_vp(struct dsi_data *dsi, int channel)
 
 	bit = dsi->te_enabled ? 30 : 31;
 
-	r = dsi_register_isr_vc(dsi, channel, dsi_packet_sent_handler_vp,
+	r = dsi_register_isr_vc(dsi, vc, dsi_packet_sent_handler_vp,
 		&vp_data, DSI_VC_IRQ_PACKET_SENT);
 	if (r)
 		goto err0;
 
 	/* Wait for completion only if TE_EN/TE_START is still set */
-	if (REG_GET(dsi, DSI_VC_TE(channel), bit, bit)) {
+	if (REG_GET(dsi, DSI_VC_TE(vc), bit, bit)) {
 		if (wait_for_completion_timeout(&completion,
 				msecs_to_jiffies(10)) == 0) {
 			DSSERR("Failed to complete previous frame transfer\n");
@@ -2276,12 +2276,12 @@ static int dsi_sync_vc_vp(struct dsi_data *dsi, int channel)
 		}
 	}
 
-	dsi_unregister_isr_vc(dsi, channel, dsi_packet_sent_handler_vp,
+	dsi_unregister_isr_vc(dsi, vc, dsi_packet_sent_handler_vp,
 		&vp_data, DSI_VC_IRQ_PACKET_SENT);
 
 	return 0;
 err1:
-	dsi_unregister_isr_vc(dsi, channel, dsi_packet_sent_handler_vp,
+	dsi_unregister_isr_vc(dsi, vc, dsi_packet_sent_handler_vp,
 		&vp_data, DSI_VC_IRQ_PACKET_SENT);
 err0:
 	return r;
@@ -2292,13 +2292,13 @@ static void dsi_packet_sent_handler_l4(void *data, u32 mask)
 	struct dsi_packet_sent_handler_data *l4_data =
 		(struct dsi_packet_sent_handler_data *) data;
 	struct dsi_data *dsi = l4_data->dsi;
-	const int channel = dsi->update_channel;
+	const int vc = dsi->update_vc;
 
-	if (REG_GET(dsi, DSI_VC_CTRL(channel), 5, 5) == 0)
+	if (REG_GET(dsi, DSI_VC_CTRL(vc), 5, 5) == 0)
 		complete(l4_data->completion);
 }
 
-static int dsi_sync_vc_l4(struct dsi_data *dsi, int channel)
+static int dsi_sync_vc_l4(struct dsi_data *dsi, int vc)
 {
 	DECLARE_COMPLETION_ONSTACK(completion);
 	struct dsi_packet_sent_handler_data l4_data = {
@@ -2307,13 +2307,13 @@ static int dsi_sync_vc_l4(struct dsi_data *dsi, int channel)
 	};
 	int r = 0;
 
-	r = dsi_register_isr_vc(dsi, channel, dsi_packet_sent_handler_l4,
+	r = dsi_register_isr_vc(dsi, vc, dsi_packet_sent_handler_l4,
 		&l4_data, DSI_VC_IRQ_PACKET_SENT);
 	if (r)
 		goto err0;
 
 	/* Wait for completion only if TX_FIFO_NOT_EMPTY is still set */
-	if (REG_GET(dsi, DSI_VC_CTRL(channel), 5, 5)) {
+	if (REG_GET(dsi, DSI_VC_CTRL(vc), 5, 5)) {
 		if (wait_for_completion_timeout(&completion,
 				msecs_to_jiffies(10)) == 0) {
 			DSSERR("Failed to complete previous l4 transfer\n");
@@ -2322,47 +2322,47 @@ static int dsi_sync_vc_l4(struct dsi_data *dsi, int channel)
 		}
 	}
 
-	dsi_unregister_isr_vc(dsi, channel, dsi_packet_sent_handler_l4,
+	dsi_unregister_isr_vc(dsi, vc, dsi_packet_sent_handler_l4,
 		&l4_data, DSI_VC_IRQ_PACKET_SENT);
 
 	return 0;
 err1:
-	dsi_unregister_isr_vc(dsi, channel, dsi_packet_sent_handler_l4,
+	dsi_unregister_isr_vc(dsi, vc, dsi_packet_sent_handler_l4,
 		&l4_data, DSI_VC_IRQ_PACKET_SENT);
 err0:
 	return r;
 }
 
-static int dsi_sync_vc(struct dsi_data *dsi, int channel)
+static int dsi_sync_vc(struct dsi_data *dsi, int vc)
 {
 	WARN_ON(!dsi_bus_is_locked(dsi));
 
 	WARN_ON(in_interrupt());
 
-	if (!dsi_vc_is_enabled(dsi, channel))
+	if (!dsi_vc_is_enabled(dsi, vc))
 		return 0;
 
-	switch (dsi->vc[channel].source) {
+	switch (dsi->vc[vc].source) {
 	case DSI_VC_SOURCE_VP:
-		return dsi_sync_vc_vp(dsi, channel);
+		return dsi_sync_vc_vp(dsi, vc);
 	case DSI_VC_SOURCE_L4:
-		return dsi_sync_vc_l4(dsi, channel);
+		return dsi_sync_vc_l4(dsi, vc);
 	default:
 		BUG();
 		return -EINVAL;
 	}
 }
 
-static int dsi_vc_enable(struct dsi_data *dsi, int channel, bool enable)
+static int dsi_vc_enable(struct dsi_data *dsi, int vc, bool enable)
 {
-	DSSDBG("dsi_vc_enable channel %d, enable %d\n",
-			channel, enable);
+	DSSDBG("dsi_vc_enable vc %d, enable %d\n",
+			vc, enable);
 
 	enable = enable ? 1 : 0;
 
-	REG_FLD_MOD(dsi, DSI_VC_CTRL(channel), enable, 0, 0);
+	REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), enable, 0, 0);
 
-	if (!wait_for_bit_change(dsi, DSI_VC_CTRL(channel), 0, enable)) {
+	if (!wait_for_bit_change(dsi, DSI_VC_CTRL(vc), 0, enable)) {
 		DSSERR("Failed to set dsi_vc_enable to %d\n", enable);
 		return -EIO;
 	}
@@ -2370,17 +2370,17 @@ static int dsi_vc_enable(struct dsi_data *dsi, int channel, bool enable)
 	return 0;
 }
 
-static void dsi_vc_initial_config(struct dsi_data *dsi, int channel)
+static void dsi_vc_initial_config(struct dsi_data *dsi, int vc)
 {
 	u32 r;
 
-	DSSDBG("Initial config of virtual channel %d", channel);
+	DSSDBG("Initial config of VC %d", vc);
 
-	r = dsi_read_reg(dsi, DSI_VC_CTRL(channel));
+	r = dsi_read_reg(dsi, DSI_VC_CTRL(vc));
 
 	if (FLD_GET(r, 15, 15)) /* VC_BUSY */
 		DSSERR("VC(%d) busy when trying to configure it!\n",
-				channel);
+				vc);
 
 	r = FLD_MOD(r, 0, 1, 1); /* SOURCE, 0 = L4 */
 	r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN  */
@@ -2395,76 +2395,76 @@ static void dsi_vc_initial_config(struct dsi_data *dsi, int channel)
 	r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */
 	r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */
 
-	dsi_write_reg(dsi, DSI_VC_CTRL(channel), r);
+	dsi_write_reg(dsi, DSI_VC_CTRL(vc), r);
 
-	dsi->vc[channel].source = DSI_VC_SOURCE_L4;
+	dsi->vc[vc].source = DSI_VC_SOURCE_L4;
 }
 
-static int dsi_vc_config_source(struct dsi_data *dsi, int channel,
+static int dsi_vc_config_source(struct dsi_data *dsi, int vc,
 				enum dsi_vc_source source)
 {
-	if (dsi->vc[channel].source == source)
+	if (dsi->vc[vc].source == source)
 		return 0;
 
-	DSSDBG("Source config of virtual channel %d", channel);
+	DSSDBG("Source config of VC %d", vc);
 
-	dsi_sync_vc(dsi, channel);
+	dsi_sync_vc(dsi, vc);
 
-	dsi_vc_enable(dsi, channel, 0);
+	dsi_vc_enable(dsi, vc, 0);
 
 	/* VC_BUSY */
-	if (!wait_for_bit_change(dsi, DSI_VC_CTRL(channel), 15, 0)) {
-		DSSERR("vc(%d) busy when trying to config for VP\n", channel);
+	if (!wait_for_bit_change(dsi, DSI_VC_CTRL(vc), 15, 0)) {
+		DSSERR("vc(%d) busy when trying to config for VP\n", vc);
 		return -EIO;
 	}
 
 	/* SOURCE, 0 = L4, 1 = video port */
-	REG_FLD_MOD(dsi, DSI_VC_CTRL(channel), source, 1, 1);
+	REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), source, 1, 1);
 
 	/* DCS_CMD_ENABLE */
 	if (dsi->data->quirks & DSI_QUIRK_DCS_CMD_CONFIG_VC) {
 		bool enable = source == DSI_VC_SOURCE_VP;
-		REG_FLD_MOD(dsi, DSI_VC_CTRL(channel), enable, 30, 30);
+		REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), enable, 30, 30);
 	}
 
-	dsi_vc_enable(dsi, channel, 1);
+	dsi_vc_enable(dsi, vc, 1);
 
-	dsi->vc[channel].source = source;
+	dsi->vc[vc].source = source;
 
 	return 0;
 }
 
-static void dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel,
+static void dsi_vc_enable_hs(struct omap_dss_device *dssdev, int vc,
 		bool enable)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 
-	DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable);
+	DSSDBG("dsi_vc_enable_hs(%d, %d)\n", vc, enable);
 
 	WARN_ON(!dsi_bus_is_locked(dsi));
 
-	dsi_vc_enable(dsi, channel, 0);
+	dsi_vc_enable(dsi, vc, 0);
 	dsi_if_enable(dsi, 0);
 
-	REG_FLD_MOD(dsi, DSI_VC_CTRL(channel), enable, 9, 9);
+	REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), enable, 9, 9);
 
-	dsi_vc_enable(dsi, channel, 1);
+	dsi_vc_enable(dsi, vc, 1);
 	dsi_if_enable(dsi, 1);
 
 	dsi_force_tx_stop_mode_io(dsi);
 
 	/* start the DDR clock by sending a NULL packet */
 	if (dsi->vm_timings.ddr_clk_always_on && enable)
-		dsi_vc_send_null(dsi, channel);
+		dsi_vc_send_null(dsi, vc, dsi->dsidev->channel);
 
 	dsi->in_lp_mode = !enable;
 }
 
-static void dsi_vc_flush_long_data(struct dsi_data *dsi, int channel)
+static void dsi_vc_flush_long_data(struct dsi_data *dsi, int vc)
 {
-	while (REG_GET(dsi, DSI_VC_CTRL(channel), 20, 20)) {
+	while (REG_GET(dsi, DSI_VC_CTRL(vc), 20, 20)) {
 		u32 val;
-		val = dsi_read_reg(dsi, DSI_VC_SHORT_PACKET_HEADER(channel));
+		val = dsi_read_reg(dsi, DSI_VC_SHORT_PACKET_HEADER(vc));
 		DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 %#02x\n",
 				(val >> 0) & 0xff,
 				(val >> 8) & 0xff,
@@ -2510,13 +2510,13 @@ static void dsi_show_rx_ack_with_err(u16 err)
 		DSSERR("\t\tDSI Protocol Violation\n");
 }
 
-static u16 dsi_vc_flush_receive_data(struct dsi_data *dsi, int channel)
+static u16 dsi_vc_flush_receive_data(struct dsi_data *dsi, int vc)
 {
 	/* RX_FIFO_NOT_EMPTY */
-	while (REG_GET(dsi, DSI_VC_CTRL(channel), 20, 20)) {
+	while (REG_GET(dsi, DSI_VC_CTRL(vc), 20, 20)) {
 		u32 val;
 		u8 dt;
-		val = dsi_read_reg(dsi, DSI_VC_SHORT_PACKET_HEADER(channel));
+		val = dsi_read_reg(dsi, DSI_VC_SHORT_PACKET_HEADER(vc));
 		DSSERR("\trawval %#08x\n", val);
 		dt = FLD_GET(val, 5, 0);
 		if (dt == MIPI_DSI_RX_ACKNOWLEDGE_AND_ERROR_REPORT) {
@@ -2531,7 +2531,7 @@ static u16 dsi_vc_flush_receive_data(struct dsi_data *dsi, int channel)
 		} else if (dt == MIPI_DSI_RX_DCS_LONG_READ_RESPONSE) {
 			DSSERR("\tDCS long response, len %d\n",
 					FLD_GET(val, 23, 8));
-			dsi_vc_flush_long_data(dsi, channel);
+			dsi_vc_flush_long_data(dsi, vc);
 		} else {
 			DSSERR("\tunknown datatype 0x%02x\n", dt);
 		}
@@ -2539,35 +2539,35 @@ static u16 dsi_vc_flush_receive_data(struct dsi_data *dsi, int channel)
 	return 0;
 }
 
-static int dsi_vc_send_bta(struct dsi_data *dsi, int channel)
+static int dsi_vc_send_bta(struct dsi_data *dsi, int vc)
 {
 	if (dsi->debug_write || dsi->debug_read)
-		DSSDBG("dsi_vc_send_bta %d\n", channel);
+		DSSDBG("dsi_vc_send_bta %d\n", vc);
 
 	WARN_ON(!dsi_bus_is_locked(dsi));
 
 	/* RX_FIFO_NOT_EMPTY */
-	if (REG_GET(dsi, DSI_VC_CTRL(channel), 20, 20)) {
+	if (REG_GET(dsi, DSI_VC_CTRL(vc), 20, 20)) {
 		DSSERR("rx fifo not empty when sending BTA, dumping data:\n");
-		dsi_vc_flush_receive_data(dsi, channel);
+		dsi_vc_flush_receive_data(dsi, vc);
 	}
 
-	REG_FLD_MOD(dsi, DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */
+	REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 1, 6, 6); /* BTA_EN */
 
 	/* flush posted write */
-	dsi_read_reg(dsi, DSI_VC_CTRL(channel));
+	dsi_read_reg(dsi, DSI_VC_CTRL(vc));
 
 	return 0;
 }
 
-static int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel)
+static int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int vc)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 	DECLARE_COMPLETION_ONSTACK(completion);
 	int r = 0;
 	u32 err;
 
-	r = dsi_register_isr_vc(dsi, channel, dsi_completion_handler,
+	r = dsi_register_isr_vc(dsi, vc, dsi_completion_handler,
 			&completion, DSI_VC_IRQ_BTA);
 	if (r)
 		goto err0;
@@ -2577,7 +2577,7 @@ static int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel)
 	if (r)
 		goto err1;
 
-	r = dsi_vc_send_bta(dsi, channel);
+	r = dsi_vc_send_bta(dsi, vc);
 	if (r)
 		goto err2;
 
@@ -2598,14 +2598,15 @@ static int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel)
 	dsi_unregister_isr(dsi, dsi_completion_handler, &completion,
 			DSI_IRQ_ERROR_MASK);
 err1:
-	dsi_unregister_isr_vc(dsi, channel, dsi_completion_handler,
+	dsi_unregister_isr_vc(dsi, vc, dsi_completion_handler,
 			&completion, DSI_VC_IRQ_BTA);
 err0:
 	return r;
 }
 
-static inline void dsi_vc_write_long_header(struct dsi_data *dsi, int channel,
-					    u8 data_type, u16 len, u8 ecc)
+static inline void dsi_vc_write_long_header(struct dsi_data *dsi, int vc,
+					    int channel, u8 data_type, u16 len,
+					    u8 ecc)
 {
 	u32 val;
 	u8 data_id;
@@ -2615,12 +2616,12 @@ static inline void dsi_vc_write_long_header(struct dsi_data *dsi, int channel,
 	data_id = data_type | channel << 6;
 
 	val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) |
-		FLD_VAL(ecc, 31, 24);
+	      FLD_VAL(ecc, 31, 24);
 
-	dsi_write_reg(dsi, DSI_VC_LONG_PACKET_HEADER(channel), val);
+	dsi_write_reg(dsi, DSI_VC_LONG_PACKET_HEADER(vc), val);
 }
 
-static inline void dsi_vc_write_long_payload(struct dsi_data *dsi, int channel,
+static inline void dsi_vc_write_long_payload(struct dsi_data *dsi, int vc,
 					     u8 b1, u8 b2, u8 b3, u8 b4)
 {
 	u32 val;
@@ -2630,10 +2631,10 @@ static inline void dsi_vc_write_long_payload(struct dsi_data *dsi, int channel,
 /*	DSSDBG("\twriting %02x, %02x, %02x, %02x (%#010x)\n",
 			b1, b2, b3, b4, val); */
 
-	dsi_write_reg(dsi, DSI_VC_LONG_PACKET_PAYLOAD(channel), val);
+	dsi_write_reg(dsi, DSI_VC_LONG_PACKET_PAYLOAD(vc), val);
 }
 
-static int dsi_vc_send_long(struct dsi_data *dsi,
+static int dsi_vc_send_long(struct dsi_data *dsi, int vc,
 			    const struct mipi_dsi_msg *msg)
 {
 	/*u32 val; */
@@ -2646,14 +2647,14 @@ static int dsi_vc_send_long(struct dsi_data *dsi,
 		DSSDBG("dsi_vc_send_long, %d bytes\n", msg->tx_len);
 
 	/* len + header */
-	if (dsi->vc[msg->channel].tx_fifo_size * 32 * 4 < msg->tx_len + 4) {
+	if (dsi->vc[vc].tx_fifo_size * 32 * 4 < msg->tx_len + 4) {
 		DSSERR("unable to send long packet: packet too long.\n");
 		return -EINVAL;
 	}
 
-	dsi_vc_config_source(dsi, msg->channel, DSI_VC_SOURCE_L4);
+	dsi_vc_config_source(dsi, vc, DSI_VC_SOURCE_L4);
 
-	dsi_vc_write_long_header(dsi, msg->channel, msg->type, msg->tx_len, 0);
+	dsi_vc_write_long_header(dsi, vc, msg->channel, msg->type, msg->tx_len, 0);
 
 	p = msg->tx_buf;
 	for (i = 0; i < msg->tx_len >> 2; i++) {
@@ -2665,7 +2666,7 @@ static int dsi_vc_send_long(struct dsi_data *dsi,
 		b3 = *p++;
 		b4 = *p++;
 
-		dsi_vc_write_long_payload(dsi, msg->channel, b1, b2, b3, b4);
+		dsi_vc_write_long_payload(dsi, vc, b1, b2, b3, b4);
 	}
 
 	i = msg->tx_len % 4;
@@ -2690,13 +2691,13 @@ static int dsi_vc_send_long(struct dsi_data *dsi,
 			break;
 		}
 
-		dsi_vc_write_long_payload(dsi, msg->channel, b1, b2, b3, 0);
+		dsi_vc_write_long_payload(dsi, vc, b1, b2, b3, 0);
 	}
 
 	return r;
 }
 
-static int dsi_vc_send_short(struct dsi_data *dsi,
+static int dsi_vc_send_short(struct dsi_data *dsi, int vc,
 			     const struct mipi_dsi_msg *msg)
 {
 	struct mipi_dsi_packet pkt;
@@ -2710,11 +2711,11 @@ static int dsi_vc_send_short(struct dsi_data *dsi,
 
 	if (dsi->debug_write)
 		DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n",
-		       msg->channel, msg->type, pkt.header[1], pkt.header[2]);
+		       vc, msg->type, pkt.header[1], pkt.header[2]);
 
-	dsi_vc_config_source(dsi, msg->channel, DSI_VC_SOURCE_L4);
+	dsi_vc_config_source(dsi, vc, DSI_VC_SOURCE_L4);
 
-	if (FLD_GET(dsi_read_reg(dsi, DSI_VC_CTRL(msg->channel)), 16, 16)) {
+	if (FLD_GET(dsi_read_reg(dsi, DSI_VC_CTRL(vc)), 16, 16)) {
 		DSSERR("ERROR FIFO FULL, aborting transfer\n");
 		return -EINVAL;
 	}
@@ -2722,31 +2723,31 @@ static int dsi_vc_send_short(struct dsi_data *dsi,
 	r = pkt.header[3] << 24 | pkt.header[2] << 16 | pkt.header[1] << 8 |
 	    pkt.header[0];
 
-	dsi_write_reg(dsi, DSI_VC_SHORT_PACKET_HEADER(msg->channel), r);
+	dsi_write_reg(dsi, DSI_VC_SHORT_PACKET_HEADER(vc), r);
 
 	return 0;
 }
 
-static int dsi_vc_send_null(struct dsi_data *dsi, int channel)
+static int dsi_vc_send_null(struct dsi_data *dsi, int vc, int channel)
 {
 	const struct mipi_dsi_msg msg = {
 		.channel = channel,
 		.type = MIPI_DSI_NULL_PACKET,
 	};
 
-	return dsi_vc_send_long(dsi, &msg);
+	return dsi_vc_send_long(dsi, vc, &msg);
 }
 
-static int dsi_vc_write_common(struct omap_dss_device *dssdev,
+static int dsi_vc_write_common(struct omap_dss_device *dssdev, int vc,
 			       const struct mipi_dsi_msg *msg)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 	int r;
 
 	if (mipi_dsi_packet_format_is_short(msg->type))
-		r = dsi_vc_send_short(dsi, msg);
+		r = dsi_vc_send_short(dsi, vc, msg);
 	else
-		r = dsi_vc_send_long(dsi, msg);
+		r = dsi_vc_send_long(dsi, vc, msg);
 
 	if (r < 0)
 		return r;
@@ -2758,23 +2759,23 @@ static int dsi_vc_write_common(struct omap_dss_device *dssdev,
 	 * In that case we can return early.
 	 */
 
-	r = dsi_vc_send_bta_sync(dssdev, msg->channel);
+	r = dsi_vc_send_bta_sync(dssdev, vc);
 	if (r) {
 		DSSERR("bta sync failed\n");
 		return r;
 	}
 
 	/* RX_FIFO_NOT_EMPTY */
-	if (REG_GET(dsi, DSI_VC_CTRL(msg->channel), 20, 20)) {
+	if (REG_GET(dsi, DSI_VC_CTRL(vc), 20, 20)) {
 		DSSERR("rx fifo not empty after write, dumping data:\n");
-		dsi_vc_flush_receive_data(dsi, msg->channel);
+		dsi_vc_flush_receive_data(dsi, vc);
 		return -EIO;
 	}
 
 	return 0;
 }
 
-static int dsi_vc_read_rx_fifo(struct dsi_data *dsi, int channel, u8 *buf,
+static int dsi_vc_read_rx_fifo(struct dsi_data *dsi, int vc, u8 *buf,
 			       int buflen, enum dss_dsi_content_type type)
 {
 	u32 val;
@@ -2782,13 +2783,13 @@ static int dsi_vc_read_rx_fifo(struct dsi_data *dsi, int channel, u8 *buf,
 	int r;
 
 	/* RX_FIFO_NOT_EMPTY */
-	if (REG_GET(dsi, DSI_VC_CTRL(channel), 20, 20) == 0) {
+	if (REG_GET(dsi, DSI_VC_CTRL(vc), 20, 20) == 0) {
 		DSSERR("RX fifo empty when trying to read.\n");
 		r = -EIO;
 		goto err;
 	}
 
-	val = dsi_read_reg(dsi, DSI_VC_SHORT_PACKET_HEADER(channel));
+	val = dsi_read_reg(dsi, DSI_VC_SHORT_PACKET_HEADER(vc));
 	if (dsi->debug_read)
 		DSSDBG("\theader: %08x\n", val);
 	dt = FLD_GET(val, 5, 0);
@@ -2852,7 +2853,7 @@ static int dsi_vc_read_rx_fifo(struct dsi_data *dsi, int channel, u8 *buf,
 		for (w = 0; w < len + 2;) {
 			int b;
 			val = dsi_read_reg(dsi,
-				DSI_VC_SHORT_PACKET_HEADER(channel));
+				DSI_VC_SHORT_PACKET_HEADER(vc));
 			if (dsi->debug_read)
 				DSSDBG("\t\t%02x %02x %02x %02x\n",
 						(val >> 0) & 0xff,
@@ -2876,32 +2877,31 @@ static int dsi_vc_read_rx_fifo(struct dsi_data *dsi, int channel, u8 *buf,
 	}
 
 err:
-	DSSERR("dsi_vc_read_rx_fifo(ch %d type %s) failed\n", channel,
+	DSSERR("dsi_vc_read_rx_fifo(vc %d type %s) failed\n", vc,
 		type == DSS_DSI_CONTENT_GENERIC ? "GENERIC" : "DCS");
 
 	return r;
 }
 
-static int dsi_vc_dcs_read(struct omap_dss_device *dssdev,
+static int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int vc,
 			   const struct mipi_dsi_msg *msg)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 	u8 cmd = ((u8 *)msg->tx_buf)[0];
-	u8 channel = msg->channel;
 	int r;
 
 	if (dsi->debug_read)
-		DSSDBG("%s(ch %d, cmd %x)\n", __func__, channel, cmd);
+		DSSDBG("%s(ch %d, cmd %x)\n", __func__, vc, cmd);
 
-	r = dsi_vc_send_short(dsi, msg);
+	r = dsi_vc_send_short(dsi, vc, msg);
 	if (r)
 		goto err;
 
-	r = dsi_vc_send_bta_sync(dssdev, channel);
+	r = dsi_vc_send_bta_sync(dssdev, vc);
 	if (r)
 		goto err;
 
-	r = dsi_vc_read_rx_fifo(dsi, channel, msg->rx_buf, msg->rx_len,
+	r = dsi_vc_read_rx_fifo(dsi, vc, msg->rx_buf, msg->rx_len,
 		DSS_DSI_CONTENT_DCS);
 	if (r < 0)
 		goto err;
@@ -2913,25 +2913,25 @@ static int dsi_vc_dcs_read(struct omap_dss_device *dssdev,
 
 	return 0;
 err:
-	DSSERR("%s(ch %d, cmd 0x%02x) failed\n", __func__,  msg->channel, cmd);
+	DSSERR("%s(ch %d, cmd 0x%02x) failed\n", __func__,  vc, cmd);
 	return r;
 }
 
-static int dsi_vc_generic_read(struct omap_dss_device *dssdev,
+static int dsi_vc_generic_read(struct omap_dss_device *dssdev, int vc,
 			       const struct mipi_dsi_msg *msg)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 	int r;
 
-	r = dsi_vc_send_short(dsi, msg);
+	r = dsi_vc_send_short(dsi, vc, msg);
 	if (r)
 		goto err;
 
-	r = dsi_vc_send_bta_sync(dssdev, msg->channel);
+	r = dsi_vc_send_bta_sync(dssdev, vc);
 	if (r)
 		goto err;
 
-	r = dsi_vc_read_rx_fifo(dsi, msg->channel, msg->rx_buf, msg->rx_len,
+	r = dsi_vc_read_rx_fifo(dsi, vc, msg->rx_buf, msg->rx_len,
 		DSS_DSI_CONTENT_GENERIC);
 	if (r < 0)
 		goto err;
@@ -2943,7 +2943,7 @@ static int dsi_vc_generic_read(struct omap_dss_device *dssdev,
 
 	return 0;
 err:
-	DSSERR("%s(ch %d, reqlen %d) failed\n", __func__,  msg->channel, msg->tx_len);
+	DSSERR("%s(ch %d, reqlen %d) failed\n", __func__,  vc, msg->tx_len);
 	return r;
 }
 
@@ -3631,7 +3631,7 @@ static int dsi_configure_pins(struct dsi_data *dsi,
 	return 0;
 }
 
-static void dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
+static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 	int bpp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt);
@@ -3665,17 +3665,17 @@ static void dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 		}
 
 		dsi_if_enable(dsi, false);
-		dsi_vc_enable(dsi, channel, false);
+		dsi_vc_enable(dsi, vc, false);
 
 		/* MODE, 1 = video mode */
-		REG_FLD_MOD(dsi, DSI_VC_CTRL(channel), 1, 4, 4);
+		REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 1, 4, 4);
 
 		word_count = DIV_ROUND_UP(dsi->vm.hactive * bpp, 8);
 
-		dsi_vc_write_long_header(dsi, channel, data_type,
+		dsi_vc_write_long_header(dsi, vc, dsi->dsidev->channel, data_type,
 				word_count, 0);
 
-		dsi_vc_enable(dsi, channel, true);
+		dsi_vc_enable(dsi, vc, true);
 		dsi_if_enable(dsi, true);
 	}
 
@@ -3688,7 +3688,7 @@ static void dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 err_mgr_enable:
 	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
 		dsi_if_enable(dsi, false);
-		dsi_vc_enable(dsi, channel, false);
+		dsi_vc_enable(dsi, vc, false);
 	}
 err_pix_fmt:
 	dsi_display_uninit_dispc(dsi);
@@ -3696,18 +3696,18 @@ static void dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 	return;
 }
 
-static void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel)
+static void dsi_disable_video_output(struct omap_dss_device *dssdev, int vc)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 
 	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
 		dsi_if_enable(dsi, false);
-		dsi_vc_enable(dsi, channel, false);
+		dsi_vc_enable(dsi, vc, false);
 
 		/* MODE, 0 = command mode */
-		REG_FLD_MOD(dsi, DSI_VC_CTRL(channel), 0, 4, 4);
+		REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 0, 4, 4);
 
-		dsi_vc_enable(dsi, channel, true);
+		dsi_vc_enable(dsi, vc, true);
 		dsi_if_enable(dsi, true);
 	}
 
@@ -3740,14 +3740,14 @@ static void dsi_update_screen_dispc(struct dsi_data *dsi)
 	unsigned int packet_len;
 	u32 l;
 	int r;
-	const unsigned channel = dsi->update_channel;
+	const unsigned vc = dsi->update_vc;
 	const unsigned int line_buf_size = dsi->line_buffer_size;
 	u16 w = dsi->vm.hactive;
 	u16 h = dsi->vm.vactive;
 
 	DSSDBG("dsi_update_screen_dispc(%dx%d)\n", w, h);
 
-	dsi_vc_config_source(dsi, channel, DSI_VC_SOURCE_VP);
+	dsi_vc_config_source(dsi, vc, DSI_VC_SOURCE_VP);
 
 	bytespp	= mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt) / 8;
 	bytespl = w * bytespp;
@@ -3768,16 +3768,16 @@ static void dsi_update_screen_dispc(struct dsi_data *dsi)
 		total_len += (bytespf % packet_payload) + 1;
 
 	l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */
-	dsi_write_reg(dsi, DSI_VC_TE(channel), l);
+	dsi_write_reg(dsi, DSI_VC_TE(vc), l);
 
-	dsi_vc_write_long_header(dsi, channel, MIPI_DSI_DCS_LONG_WRITE,
+	dsi_vc_write_long_header(dsi, vc, dsi->dsidev->channel, MIPI_DSI_DCS_LONG_WRITE,
 		packet_len, 0);
 
 	if (dsi->te_enabled)
 		l = FLD_MOD(l, 1, 30, 30); /* TE_EN */
 	else
 		l = FLD_MOD(l, 1, 31, 31); /* TE_START */
-	dsi_write_reg(dsi, DSI_VC_TE(channel), l);
+	dsi_write_reg(dsi, DSI_VC_TE(vc), l);
 
 	/* We put SIDLEMODE to no-idle for the duration of the transfer,
 	 * because DSS interrupts are not capable of waking up the CPU and the
@@ -3800,7 +3800,7 @@ static void dsi_update_screen_dispc(struct dsi_data *dsi)
 		 * for TE is longer than the timer allows */
 		REG_FLD_MOD(dsi, DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */
 
-		dsi_vc_send_bta(dsi, channel);
+		dsi_vc_send_bta(dsi, vc);
 
 #ifdef DSI_CATCH_MISSING_TE
 		mod_timer(&dsi->te_timer, jiffies + msecs_to_jiffies(250));
@@ -3882,7 +3882,7 @@ static int _dsi_update(struct dsi_data *dsi)
 	return 0;
 }
 
-static int _dsi_send_nop(struct dsi_data *dsi, int channel)
+static int _dsi_send_nop(struct dsi_data *dsi, int vc, int channel)
 {
 	const u8 payload[] = { MIPI_DCS_NOP };
 	const struct mipi_dsi_msg msg = {
@@ -3894,10 +3894,10 @@ static int _dsi_send_nop(struct dsi_data *dsi, int channel)
 
 	WARN_ON(!dsi_bus_is_locked(dsi));
 
-	return _omap_dsi_host_transfer(dsi, &msg);
+	return _omap_dsi_host_transfer(dsi, vc, &msg);
 }
 
-static int dsi_update_channel(struct omap_dss_device *dssdev, int channel)
+static int dsi_update_channel(struct omap_dss_device *dssdev, int vc)
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 	int r;
@@ -3914,17 +3914,17 @@ static int dsi_update_channel(struct omap_dss_device *dssdev, int channel)
 		goto err;
 	}
 
-	DSSDBG("dsi_update_channel: %d", channel);
+	DSSDBG("dsi_update_channel: %d", vc);
 
 	dsi_set_ulps_auto(dsi, false);
 
-	r = _dsi_send_nop(dsi, channel);
+	r = _dsi_send_nop(dsi, vc, dsi->dsidev->channel);
 	if (r < 0) {
 		DSSWARN("failed to send nop between frames: %d\n", r);
 		goto err;
 	}
 
-	dsi->update_channel = channel;
+	dsi->update_vc = vc;
 
 	if (dsi->te_enabled && dsi->te_gpio) {
 		schedule_delayed_work(&dsi->te_timeout_work,
@@ -3973,10 +3973,10 @@ static int dsi_configure_dispc_clocks(struct dsi_data *dsi)
 
 static int dsi_display_init_dispc(struct dsi_data *dsi)
 {
-	enum omap_channel channel = dsi->output.dispc_channel;
+	enum omap_channel dispc_channel = dsi->output.dispc_channel;
 	int r;
 
-	dss_select_lcd_clk_source(dsi->dss, channel, dsi->module_id == 0 ?
+	dss_select_lcd_clk_source(dsi->dss, dispc_channel, dsi->module_id == 0 ?
 			DSS_CLK_SRC_PLL1_1 :
 			DSS_CLK_SRC_PLL2_1);
 
@@ -4012,19 +4012,19 @@ static int dsi_display_init_dispc(struct dsi_data *dsi)
 		dss_mgr_unregister_framedone_handler(&dsi->output,
 				dsi_framedone_irq_callback, dsi);
 err:
-	dss_select_lcd_clk_source(dsi->dss, channel, DSS_CLK_SRC_FCK);
+	dss_select_lcd_clk_source(dsi->dss, dispc_channel, DSS_CLK_SRC_FCK);
 	return r;
 }
 
 static void dsi_display_uninit_dispc(struct dsi_data *dsi)
 {
-	enum omap_channel channel = dsi->output.dispc_channel;
+	enum omap_channel dispc_channel = dsi->output.dispc_channel;
 
 	if (dsi->mode == OMAP_DSS_DSI_CMD_MODE)
 		dss_mgr_unregister_framedone_handler(&dsi->output,
 				dsi_framedone_irq_callback, dsi);
 
-	dss_select_lcd_clk_source(dsi->dss, channel, DSS_CLK_SRC_FCK);
+	dss_select_lcd_clk_source(dsi->dss, dispc_channel, DSS_CLK_SRC_FCK);
 }
 
 static int dsi_configure_dsi_clocks(struct dsi_data *dsi)
@@ -4841,12 +4841,12 @@ static int dsi_set_config(struct omap_dss_device *dssdev,
 }
 
 /*
- * Return a hardcoded channel for the DSI output. This should work for
+ * Return a hardcoded dispc channel for the DSI output. This should work for
  * current use cases, but this can be later expanded to either resolve
  * the channel in some more dynamic manner, or get the channel as a user
  * parameter.
  */
-static enum omap_channel dsi_get_channel(struct dsi_data *dsi)
+static enum omap_channel dsi_get_dispc_channel(struct dsi_data *dsi)
 {
 	switch (dsi->data->model) {
 	case DSI_MODEL_OMAP3:
@@ -4880,14 +4880,14 @@ static enum omap_channel dsi_get_channel(struct dsi_data *dsi)
 	}
 }
 
-static ssize_t _omap_dsi_host_transfer(struct dsi_data *dsi,
+static ssize_t _omap_dsi_host_transfer(struct dsi_data *dsi, int vc,
 				       const struct mipi_dsi_msg *msg)
 {
 	struct omap_dss_device *dssdev = &dsi->output;
 	int r;
 
 	if (!!(msg->flags & MIPI_DSI_MSG_USE_LPM) != dsi->in_lp_mode)
-		dsi_vc_enable_hs(dssdev, msg->channel,
+		dsi_vc_enable_hs(dssdev, vc,
 				 !(msg->flags & MIPI_DSI_MSG_USE_LPM));
 
 	switch (msg->type) {
@@ -4900,15 +4900,15 @@ static ssize_t _omap_dsi_host_transfer(struct dsi_data *dsi,
 	case MIPI_DSI_DCS_LONG_WRITE:
 	case MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE:
 	case MIPI_DSI_NULL_PACKET:
-		r = dsi_vc_write_common(dssdev, msg);
+		r = dsi_vc_write_common(dssdev, vc, msg);
 		break;
 	case MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM:
 	case MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM:
 	case MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM:
-		r = dsi_vc_generic_read(dssdev, msg);
+		r = dsi_vc_generic_read(dssdev, vc, msg);
 		break;
 	case MIPI_DSI_DCS_READ:
-		r = dsi_vc_dcs_read(dssdev, msg);
+		r = dsi_vc_dcs_read(dssdev, vc, msg);
 		break;
 	default:
 		r = -EINVAL;
@@ -4936,12 +4936,13 @@ static ssize_t omap_dsi_host_transfer(struct mipi_dsi_host *host,
 {
 	struct dsi_data *dsi = host_to_omap(host);
 	int r;
+	int vc = VC_DEFAULT;
 
 	dsi_bus_lock(dsi);
 
 	if (dsi->video_enabled) {
 		dsi_set_ulps_auto(dsi, false);
-		r = _omap_dsi_host_transfer(dsi, msg);
+		r = _omap_dsi_host_transfer(dsi, vc, msg);
 		dsi_set_ulps_auto(dsi, true);
 	} else {
 		r = -EIO;
@@ -5398,7 +5399,7 @@ static int dsi_init_output(struct dsi_data *dsi)
 
 	out->type = OMAP_DISPLAY_TYPE_DSI;
 	out->name = dsi->module_id == 0 ? "dsi.0" : "dsi.1";
-	out->dispc_channel = dsi_get_channel(dsi);
+	out->dispc_channel = dsi_get_dispc_channel(dsi);
 	out->dsi_ops = &dsi_ops;
 	out->of_port = 0;
 	out->bus_flags = DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE
