diff --git a/drivers/gpu/drm/bridge/synopsys/Kconfig b/drivers/gpu/drm/bridge/synopsys/Kconfig
index 21a1be3ced0f3..080146093b68e 100644
--- a/drivers/gpu/drm/bridge/synopsys/Kconfig
+++ b/drivers/gpu/drm/bridge/synopsys/Kconfig
@@ -39,3 +39,4 @@ config DRM_DW_MIPI_DSI
 	select DRM_KMS_HELPER
 	select DRM_MIPI_DSI
 	select DRM_PANEL_BRIDGE
+	select REGMAP_MMIO
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index 5ef0f154aa7bd..34b8668ae24ea 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/regmap.h>
 #include <linux/reset.h>
 
 #include <video/mipi_display.h>
@@ -227,6 +228,7 @@ struct dw_mipi_dsi {
 	struct drm_bridge *panel_bridge;
 	struct device *dev;
 	void __iomem *base;
+	struct regmap *regs;
 
 	struct clk *pclk;
 
@@ -235,6 +237,7 @@ struct dw_mipi_dsi {
 	u32 lanes;
 	u32 format;
 	unsigned long mode_flags;
+	u32 hw_version;
 
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *debugfs;
@@ -249,6 +252,13 @@ struct dw_mipi_dsi {
 	const struct dw_mipi_dsi_plat_data *plat_data;
 };
 
+static const struct regmap_config dw_mipi_dsi_regmap_cfg = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+	.name = "dw-mipi-dsi",
+};
+
 /*
  * Check if either a link to a master or slave is present
  */
@@ -280,16 +290,6 @@ static inline struct dw_mipi_dsi *bridge_to_dsi(struct drm_bridge *bridge)
 	return container_of(bridge, struct dw_mipi_dsi, bridge);
 }
 
-static inline void dsi_write(struct dw_mipi_dsi *dsi, u32 reg, u32 val)
-{
-	writel(val, dsi->base + reg);
-}
-
-static inline u32 dsi_read(struct dw_mipi_dsi *dsi, u32 reg)
-{
-	return readl(dsi->base + reg);
-}
-
 static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host,
 				   struct mipi_dsi_device *device)
 {
@@ -366,8 +366,8 @@ static void dw_mipi_message_config(struct dw_mipi_dsi *dsi,
 	if (lpm)
 		val |= CMD_MODE_ALL_LP;
 
-	dsi_write(dsi, DSI_LPCLK_CTRL, lpm ? 0 : PHY_TXREQUESTCLKHS);
-	dsi_write(dsi, DSI_CMD_MODE_CFG, val);
+	regmap_write(dsi->regs, DSI_LPCLK_CTRL, lpm ? 0 : PHY_TXREQUESTCLKHS);
+	regmap_write(dsi->regs, DSI_CMD_MODE_CFG, val);
 }
 
 static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 hdr_val)
@@ -375,20 +375,20 @@ static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 hdr_val)
 	int ret;
 	u32 val, mask;
 
-	ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
-				 val, !(val & GEN_CMD_FULL), 1000,
-				 CMD_PKT_STATUS_TIMEOUT_US);
+	ret = regmap_read_poll_timeout(dsi->regs, DSI_CMD_PKT_STATUS,
+				       val, !(val & GEN_CMD_FULL), 1000,
+				       CMD_PKT_STATUS_TIMEOUT_US);
 	if (ret) {
 		dev_err(dsi->dev, "failed to get available command FIFO\n");
 		return ret;
 	}
 
-	dsi_write(dsi, DSI_GEN_HDR, hdr_val);
+	regmap_write(dsi->regs, DSI_GEN_HDR, hdr_val);
 
 	mask = GEN_CMD_EMPTY | GEN_PLD_W_EMPTY;
-	ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
-				 val, (val & mask) == mask,
-				 1000, CMD_PKT_STATUS_TIMEOUT_US);
+	ret = regmap_read_poll_timeout(dsi->regs, DSI_CMD_PKT_STATUS,
+				       val, (val & mask) == mask,
+				       1000, CMD_PKT_STATUS_TIMEOUT_US);
 	if (ret) {
 		dev_err(dsi->dev, "failed to write command FIFO\n");
 		return ret;
@@ -409,18 +409,20 @@ static int dw_mipi_dsi_write(struct dw_mipi_dsi *dsi,
 		if (len < pld_data_bytes) {
 			word = 0;
 			memcpy(&word, tx_buf, len);
-			dsi_write(dsi, DSI_GEN_PLD_DATA, le32_to_cpu(word));
+			regmap_write(dsi->regs, DSI_GEN_PLD_DATA,
+				     le32_to_cpu(word));
 			len = 0;
 		} else {
 			memcpy(&word, tx_buf, pld_data_bytes);
-			dsi_write(dsi, DSI_GEN_PLD_DATA, le32_to_cpu(word));
+			regmap_write(dsi->regs, DSI_GEN_PLD_DATA,
+				     le32_to_cpu(word));
 			tx_buf += pld_data_bytes;
 			len -= pld_data_bytes;
 		}
 
-		ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
-					 val, !(val & GEN_PLD_W_FULL), 1000,
-					 CMD_PKT_STATUS_TIMEOUT_US);
+		ret = regmap_read_poll_timeout(dsi->regs, DSI_CMD_PKT_STATUS,
+					       val, !(val & GEN_PLD_W_FULL),
+					       1000, CMD_PKT_STATUS_TIMEOUT_US);
 		if (ret) {
 			dev_err(dsi->dev,
 				"failed to get available write payload FIFO\n");
@@ -441,9 +443,9 @@ static int dw_mipi_dsi_read(struct dw_mipi_dsi *dsi,
 	u32 val;
 
 	/* Wait end of the read operation */
-	ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
-				 val, !(val & GEN_RD_CMD_BUSY),
-				 1000, CMD_PKT_STATUS_TIMEOUT_US);
+	ret = regmap_read_poll_timeout(dsi->regs, DSI_CMD_PKT_STATUS,
+				       val, !(val & GEN_RD_CMD_BUSY),
+				       1000, CMD_PKT_STATUS_TIMEOUT_US);
 	if (ret) {
 		dev_err(dsi->dev, "Timeout during read operation\n");
 		return ret;
@@ -451,15 +453,15 @@ static int dw_mipi_dsi_read(struct dw_mipi_dsi *dsi,
 
 	for (i = 0; i < len; i += 4) {
 		/* Read fifo must not be empty before all bytes are read */
-		ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
-					 val, !(val & GEN_PLD_R_EMPTY),
-					 1000, CMD_PKT_STATUS_TIMEOUT_US);
+		ret = regmap_read_poll_timeout(dsi->regs, DSI_CMD_PKT_STATUS,
+					       val, !(val & GEN_PLD_R_EMPTY),
+					       1000, CMD_PKT_STATUS_TIMEOUT_US);
 		if (ret) {
 			dev_err(dsi->dev, "Read payload FIFO is empty\n");
 			return ret;
 		}
 
-		val = dsi_read(dsi, DSI_GEN_PLD_DATA);
+		regmap_read(dsi->regs, DSI_GEN_PLD_DATA, &val);
 		for (j = 0; j < 4 && j + i < len; j++)
 			buf[i + j] = val >> (8 * j);
 	}
@@ -536,29 +538,29 @@ static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi)
 	}
 #endif /* CONFIG_DEBUG_FS */
 
-	dsi_write(dsi, DSI_VID_MODE_CFG, val);
+	regmap_write(dsi->regs, DSI_VID_MODE_CFG, val);
 }
 
 static void dw_mipi_dsi_set_mode(struct dw_mipi_dsi *dsi,
 				 unsigned long mode_flags)
 {
-	dsi_write(dsi, DSI_PWR_UP, RESET);
+	regmap_write(dsi->regs, DSI_PWR_UP, RESET);
 
 	if (mode_flags & MIPI_DSI_MODE_VIDEO) {
-		dsi_write(dsi, DSI_MODE_CFG, ENABLE_VIDEO_MODE);
+		regmap_write(dsi->regs, DSI_MODE_CFG, ENABLE_VIDEO_MODE);
 		dw_mipi_dsi_video_mode_config(dsi);
-		dsi_write(dsi, DSI_LPCLK_CTRL, PHY_TXREQUESTCLKHS);
+		regmap_write(dsi->regs, DSI_LPCLK_CTRL, PHY_TXREQUESTCLKHS);
 	} else {
-		dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
+		regmap_write(dsi->regs, DSI_MODE_CFG, ENABLE_CMD_MODE);
 	}
 
-	dsi_write(dsi, DSI_PWR_UP, POWERUP);
+	regmap_write(dsi->regs, DSI_PWR_UP, POWERUP);
 }
 
 static void dw_mipi_dsi_disable(struct dw_mipi_dsi *dsi)
 {
-	dsi_write(dsi, DSI_PWR_UP, RESET);
-	dsi_write(dsi, DSI_PHY_RSTZ, PHY_RSTZ);
+	regmap_write(dsi->regs, DSI_PWR_UP, RESET);
+	regmap_write(dsi->regs, DSI_PHY_RSTZ, PHY_RSTZ);
 }
 
 static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
@@ -573,14 +575,14 @@ static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
 	 */
 	u32 esc_clk_division = (dsi->lane_mbps >> 3) / 20 + 1;
 
-	dsi_write(dsi, DSI_PWR_UP, RESET);
+	regmap_write(dsi->regs, DSI_PWR_UP, RESET);
 
 	/*
 	 * TODO dw drv improvements
 	 * timeout clock division should be computed with the
 	 * high speed transmission counter timeout and byte lane...
 	 */
-	dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVISION(10) |
+	regmap_write(dsi->regs, DSI_CLKMGR_CFG, TO_CLK_DIVISION(10) |
 		  TX_ESC_CLK_DIVISION(esc_clk_division));
 }
 
@@ -609,22 +611,22 @@ static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi,
 	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
 		val |= HSYNC_ACTIVE_LOW;
 
-	dsi_write(dsi, DSI_DPI_VCID, DPI_VCID(dsi->channel));
-	dsi_write(dsi, DSI_DPI_COLOR_CODING, color);
-	dsi_write(dsi, DSI_DPI_CFG_POL, val);
+	regmap_write(dsi->regs, DSI_DPI_VCID, DPI_VCID(dsi->channel));
+	regmap_write(dsi->regs, DSI_DPI_COLOR_CODING, color);
+	regmap_write(dsi->regs, DSI_DPI_CFG_POL, val);
 	/*
 	 * TODO dw drv improvements
 	 * largest packet sizes during hfp or during vsa/vpb/vfp
 	 * should be computed according to byte lane, lane number and only
 	 * if sending lp cmds in high speed is enable (PHY_TXREQUESTCLKHS)
 	 */
-	dsi_write(dsi, DSI_DPI_LP_CMD_TIM, OUTVACT_LPCMD_TIME(4)
+	regmap_write(dsi->regs, DSI_DPI_LP_CMD_TIM, OUTVACT_LPCMD_TIME(4)
 		  | INVACT_LPCMD_TIME(4));
 }
 
 static void dw_mipi_dsi_packet_handler_config(struct dw_mipi_dsi *dsi)
 {
-	dsi_write(dsi, DSI_PCKHDL_CFG, CRC_RX_EN | ECC_RX_EN | BTA_EN);
+	regmap_write(dsi->regs, DSI_PCKHDL_CFG, CRC_RX_EN | ECC_RX_EN | BTA_EN);
 }
 
 static void dw_mipi_dsi_video_packet_config(struct dw_mipi_dsi *dsi,
@@ -638,7 +640,7 @@ static void dw_mipi_dsi_video_packet_config(struct dw_mipi_dsi *dsi,
 	 * non-burst video modes, see dw_mipi_dsi_video_mode_config()...
 	 */
 
-	dsi_write(dsi, DSI_VID_PKT_SIZE,
+	regmap_write(dsi->regs, DSI_VID_PKT_SIZE,
 		       dw_mipi_is_dual_mode(dsi) ?
 				VID_PKT_SIZE(mode->hdisplay / 2) :
 				VID_PKT_SIZE(mode->hdisplay));
@@ -651,14 +653,15 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
 	 * compute high speed transmission counter timeout according
 	 * to the timeout clock division (TO_CLK_DIVISION) and byte lane...
 	 */
-	dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(1000) | LPRX_TO_CNT(1000));
+	regmap_write(dsi->regs, DSI_TO_CNT_CFG,
+		     HSTX_TO_CNT(1000) | LPRX_TO_CNT(1000));
 	/*
 	 * TODO dw drv improvements
 	 * the Bus-Turn-Around Timeout Counter should be computed
 	 * according to byte lane...
 	 */
-	dsi_write(dsi, DSI_BTA_TO_CNT, 0xd00);
-	dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
+	regmap_write(dsi->regs, DSI_BTA_TO_CNT, 0xd00);
+	regmap_write(dsi->regs, DSI_MODE_CFG, ENABLE_CMD_MODE);
 }
 
 /* Get lane byte clock cycles. */
@@ -692,13 +695,13 @@ static void dw_mipi_dsi_line_timer_config(struct dw_mipi_dsi *dsi,
 	 * computations below may be improved...
 	 */
 	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, htotal);
-	dsi_write(dsi, DSI_VID_HLINE_TIME, lbcc);
+	regmap_write(dsi->regs, DSI_VID_HLINE_TIME, lbcc);
 
 	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, hsa);
-	dsi_write(dsi, DSI_VID_HSA_TIME, lbcc);
+	regmap_write(dsi->regs, DSI_VID_HSA_TIME, lbcc);
 
 	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, hbp);
-	dsi_write(dsi, DSI_VID_HBP_TIME, lbcc);
+	regmap_write(dsi->regs, DSI_VID_HBP_TIME, lbcc);
 }
 
 static void dw_mipi_dsi_vertical_timing_config(struct dw_mipi_dsi *dsi,
@@ -711,17 +714,16 @@ static void dw_mipi_dsi_vertical_timing_config(struct dw_mipi_dsi *dsi,
 	vfp = mode->vsync_start - mode->vdisplay;
 	vbp = mode->vtotal - mode->vsync_end;
 
-	dsi_write(dsi, DSI_VID_VACTIVE_LINES, vactive);
-	dsi_write(dsi, DSI_VID_VSA_LINES, vsa);
-	dsi_write(dsi, DSI_VID_VFP_LINES, vfp);
-	dsi_write(dsi, DSI_VID_VBP_LINES, vbp);
+	regmap_write(dsi->regs, DSI_VID_VACTIVE_LINES, vactive);
+	regmap_write(dsi->regs, DSI_VID_VSA_LINES, vsa);
+	regmap_write(dsi->regs, DSI_VID_VFP_LINES, vfp);
+	regmap_write(dsi->regs, DSI_VID_VBP_LINES, vbp);
 }
 
 static void dw_mipi_dsi_dphy_timing_config(struct dw_mipi_dsi *dsi)
 {
 	const struct dw_mipi_dsi_phy_ops *phy_ops = dsi->plat_data->phy_ops;
 	struct dw_mipi_dsi_dphy_timing timing;
-	u32 hw_version;
 	int ret;
 
 	ret = phy_ops->get_timing(dsi->plat_data->priv_data,
@@ -737,23 +739,22 @@ static void dw_mipi_dsi_dphy_timing_config(struct dw_mipi_dsi *dsi)
 	 * DSI_CMD_MODE_CFG.MAX_RD_PKT_SIZE_LP (see CMD_MODE_ALL_LP)
 	 */
 
-	hw_version = dsi_read(dsi, DSI_VERSION) & VERSION;
-
-	if (hw_version >= HWVER_131) {
-		dsi_write(dsi, DSI_PHY_TMR_CFG,
-			  PHY_HS2LP_TIME_V131(timing.data_hs2lp) |
-			  PHY_LP2HS_TIME_V131(timing.data_lp2hs));
-		dsi_write(dsi, DSI_PHY_TMR_RD_CFG, MAX_RD_TIME_V131(10000));
+	if (dsi->hw_version >= HWVER_131) {
+		regmap_write(dsi->regs, DSI_PHY_TMR_CFG,
+			     PHY_HS2LP_TIME_V131(timing.data_hs2lp) |
+			     PHY_LP2HS_TIME_V131(timing.data_lp2hs));
+		regmap_write(dsi->regs, DSI_PHY_TMR_RD_CFG,
+			     MAX_RD_TIME_V131(10000));
 	} else {
-		dsi_write(dsi, DSI_PHY_TMR_CFG,
-			  PHY_HS2LP_TIME(timing.data_hs2lp) |
-			  PHY_LP2HS_TIME(timing.data_lp2hs) |
-			  MAX_RD_TIME(10000));
+		regmap_write(dsi->regs, DSI_PHY_TMR_CFG,
+			     PHY_HS2LP_TIME(timing.data_hs2lp) |
+			     PHY_LP2HS_TIME(timing.data_lp2hs) |
+			     MAX_RD_TIME(10000));
 	}
 
-	dsi_write(dsi, DSI_PHY_TMR_LPCLK_CFG,
-		  PHY_CLKHS2LP_TIME(timing.clk_hs2lp) |
-		  PHY_CLKLP2HS_TIME(timing.clk_lp2hs));
+	regmap_write(dsi->regs, DSI_PHY_TMR_LPCLK_CFG,
+		     PHY_CLKHS2LP_TIME(timing.clk_hs2lp) |
+		     PHY_CLKLP2HS_TIME(timing.clk_lp2hs));
 }
 
 static void dw_mipi_dsi_dphy_interface_config(struct dw_mipi_dsi *dsi)
@@ -763,18 +764,18 @@ static void dw_mipi_dsi_dphy_interface_config(struct dw_mipi_dsi *dsi)
 	 * stop wait time should be the maximum between host dsi
 	 * and panel stop wait times
 	 */
-	dsi_write(dsi, DSI_PHY_IF_CFG, PHY_STOP_WAIT_TIME(0x20) |
-		  N_LANES(dsi->lanes));
+	regmap_write(dsi->regs, DSI_PHY_IF_CFG,
+		     PHY_STOP_WAIT_TIME(0x20) | N_LANES(dsi->lanes));
 }
 
 static void dw_mipi_dsi_dphy_init(struct dw_mipi_dsi *dsi)
 {
 	/* Clear PHY state */
-	dsi_write(dsi, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK
-		  | PHY_RSTZ | PHY_SHUTDOWNZ);
-	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR);
-	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLR);
-	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR);
+	regmap_write(dsi->regs, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK
+		     | PHY_RSTZ | PHY_SHUTDOWNZ);
+	regmap_write(dsi->regs, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR);
+	regmap_write(dsi->regs, DSI_PHY_TST_CTRL0, PHY_TESTCLR);
+	regmap_write(dsi->regs, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR);
 }
 
 static void dw_mipi_dsi_dphy_enable(struct dw_mipi_dsi *dsi)
@@ -782,27 +783,30 @@ static void dw_mipi_dsi_dphy_enable(struct dw_mipi_dsi *dsi)
 	u32 val;
 	int ret;
 
-	dsi_write(dsi, DSI_PHY_RSTZ, PHY_ENFORCEPLL | PHY_ENABLECLK |
-		  PHY_UNRSTZ | PHY_UNSHUTDOWNZ);
+	regmap_write(dsi->regs, DSI_PHY_RSTZ, PHY_ENFORCEPLL | PHY_ENABLECLK |
+		     PHY_UNRSTZ | PHY_UNSHUTDOWNZ);
 
-	ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS, val,
-				 val & PHY_LOCK, 1000, PHY_STATUS_TIMEOUT_US);
+	ret = regmap_read_poll_timeout(dsi->regs, DSI_PHY_STATUS,
+				       val, val & PHY_LOCK,
+				       1000, PHY_STATUS_TIMEOUT_US);
 	if (ret)
 		DRM_DEBUG_DRIVER("failed to wait phy lock state\n");
 
-	ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS,
-				 val, val & PHY_STOP_STATE_CLK_LANE, 1000,
-				 PHY_STATUS_TIMEOUT_US);
+	ret = regmap_read_poll_timeout(dsi->regs, DSI_PHY_STATUS,
+				       val, val & PHY_STOP_STATE_CLK_LANE, 1000,
+				       PHY_STATUS_TIMEOUT_US);
 	if (ret)
 		DRM_DEBUG_DRIVER("failed to wait phy clk lane stop state\n");
 }
 
 static void dw_mipi_dsi_clear_err(struct dw_mipi_dsi *dsi)
 {
-	dsi_read(dsi, DSI_INT_ST0);
-	dsi_read(dsi, DSI_INT_ST1);
-	dsi_write(dsi, DSI_INT_MSK0, 0);
-	dsi_write(dsi, DSI_INT_MSK1, 0);
+	u32 val;
+
+	regmap_read(dsi->regs, DSI_INT_ST0, &val);
+	regmap_read(dsi->regs, DSI_INT_ST1, &val);
+	regmap_write(dsi->regs, DSI_INT_MSK0, 0);
+	regmap_write(dsi->regs, DSI_INT_MSK1, 0);
 }
 
 static void dw_mipi_dsi_bridge_post_disable(struct drm_bridge *bridge)
@@ -989,6 +993,18 @@ static void dw_mipi_dsi_debugfs_remove(struct dw_mipi_dsi *dsi) { }
 
 #endif /* CONFIG_DEBUG_FS */
 
+static int dw_mipi_dsi_get_hw_version(struct dw_mipi_dsi *dsi)
+{
+	regmap_read(dsi->regs, DSI_VERSION, &dsi->hw_version);
+	dsi->hw_version &= VERSION;
+	if (!dsi->hw_version) {
+		dev_err(dsi->dev,
+			"Failed to read DSI version. Is pclk enabled?\n");
+		return -ENODEV;
+	}
+	return 0;
+}
+
 static struct dw_mipi_dsi *
 __dw_mipi_dsi_probe(struct platform_device *pdev,
 		    const struct dw_mipi_dsi_plat_data *plat_data)
@@ -1020,6 +1036,14 @@ __dw_mipi_dsi_probe(struct platform_device *pdev,
 		dsi->base = plat_data->base;
 	}
 
+	dsi->regs = devm_regmap_init_mmio(dev, dsi->base,
+					  &dw_mipi_dsi_regmap_cfg);
+	if (IS_ERR(dsi->regs)) {
+		ret = PTR_ERR(dsi->regs);
+		DRM_ERROR("Failed to create DW MIPI DSI regmap: %d\n", ret);
+		return ERR_PTR(ret);
+	}
+
 	dsi->pclk = devm_clk_get(dev, "pclk");
 	if (IS_ERR(dsi->pclk)) {
 		ret = PTR_ERR(dsi->pclk);
@@ -1055,6 +1079,12 @@ __dw_mipi_dsi_probe(struct platform_device *pdev,
 		clk_disable_unprepare(dsi->pclk);
 	}
 
+	ret = dw_mipi_dsi_get_hw_version(dsi);
+	if (ret) {
+		dev_err(dev, "Could not read HW version\n");
+		return ERR_PTR(ret);
+	}
+
 	dw_mipi_dsi_debugfs_init(dsi);
 	pm_runtime_enable(dev);
 
