Add support for DisplayPort driver on SnapDragon

index 729ec6e0d43a..10b8310f290b 100644
@@ -8114,7 +8114,7 @@ static void compute_m_n(unsigned int m, unsigned int n,
 	 * which the devices expect also in synchronous clock mode.
 	 */
 	if (constant_n)
-		*ret_n = 0x8000;
+		*ret_n = DP_LINK_CONSTANT_N_VALUE;
 	else
 		*ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
 

index e47dc22ebf50..a31d7aebb8b8 100644
@@ -1134,6 +1134,7 @@
 #define DP_MST_PHYSICAL_PORT_0 0
 #define DP_MST_LOGICAL_PORT_0 8
 
+#define DP_LINK_CONSTANT_N_VALUE 0x8000
 #define DP_LINK_STATUS_SIZE	   6
 bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
 			  int lane_count);

index a97f6d2e5a08..8b14d7c42f37 100644
@@ -995,6 +995,9 @@ static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 
 	trace_dpu_enc_mode_set(DRMID(drm_enc));
 
+	if (drm_enc->encoder_type == DRM_MODE_ENCODER_TMDS && priv->dp)
+		msm_dp_display_mode_set(priv->dp, drm_enc, mode, adj_mode);
+
 	list_for_each_entry(conn_iter, connector_list, head)
 		if (conn_iter->encoder == drm_enc)
 			conn = conn_iter;

@@ -1140,6 +1143,7 @@ static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc)
 {
 	struct dpu_encoder_virt *dpu_enc = NULL;
 	int ret = 0;
+	struct msm_drm_private *priv;
 	struct drm_display_mode *cur_mode = NULL;
 
 	if (!drm_enc) {

@@ -1150,6 +1154,7 @@ static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc)
 
 	mutex_lock(&dpu_enc->enc_lock);
 	cur_mode = &dpu_enc->base.crtc->state->adjusted_mode;
+	priv = drm_enc->dev->dev_private;
 
 	trace_dpu_enc_enable(DRMID(drm_enc), cur_mode->hdisplay,
 			     cur_mode->vdisplay);

@@ -1170,6 +1175,15 @@ static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc)
 
 	_dpu_encoder_virt_enable_helper(drm_enc);
 
+	if (drm_enc->encoder_type == DRM_MODE_ENCODER_TMDS && priv->dp) {
+		ret = msm_dp_display_enable(priv->dp,
+						drm_enc);
+		if (ret) {
+			DPU_ERROR_ENC(dpu_enc, "dp display enable failed: %d\n",
+				ret);
+			goto out;
+		}
+	}
 	dpu_enc->enabled = true;
 
 out:

@@ -1232,6 +1246,11 @@ static void dpu_encoder_virt_disable(struct drm_encoder *drm_enc)
 
 	dpu_rm_release(global_state, drm_enc);
 
+	if (drm_enc->encoder_type == DRM_MODE_ENCODER_TMDS && priv->dp) {
+		if (msm_dp_display_disable(priv->dp, drm_enc))
+			DPU_ERROR_ENC(dpu_enc, "dp display disable failed\n");
+	}
+
 	mutex_unlock(&dpu_enc->enc_lock);
 }
 

index b5a49050d131..be11a0c5e60c 100644
@@ -100,6 +100,14 @@ static void drm_mode_to_intf_timing_params(
 	 * display_v_end -= mode->hsync_start - mode->hdisplay;
 	 * }
 	 */
+	/* for DP/EDP, Shift timings to align it to bottom right */
+	if ((phys_enc->hw_intf->cap->type == INTF_DP) ||
+		(phys_enc->hw_intf->cap->type == INTF_EDP)) {
+		timing->h_back_porch += timing->h_front_porch;
+		timing->h_front_porch = 0;
+		timing->v_back_porch += timing->v_front_porch;
+		timing->v_front_porch = 0;
+	}
 }
 
 static u32 get_horizontal_total(const struct intf_timing_params *timing)

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new file mode 100644
index 000000000000..2de11021d84a
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DP_AUX_H_
+#define _DP_AUX_H_
+
+#include "dp_catalog.h"
+#include <drm/drm_dp_helper.h>
+
+#define DP_AUX_ERR_NONE		0
+#define DP_AUX_ERR_ADDR		-1
+#define DP_AUX_ERR_TOUT		-2
+#define DP_AUX_ERR_NACK		-3
+#define DP_AUX_ERR_DEFER	-4
+#define DP_AUX_ERR_NACK_DEFER	-5
+
+int dp_aux_register(struct drm_dp_aux *dp_aux);
+void dp_aux_unregister(struct drm_dp_aux *dp_aux);
+void dp_aux_isr(struct drm_dp_aux *dp_aux);
+void dp_aux_init(struct drm_dp_aux *dp_aux);
+void dp_aux_deinit(struct drm_dp_aux *dp_aux);
+void dp_aux_reconfig(struct drm_dp_aux *dp_aux);
+
+struct drm_dp_aux *dp_aux_get(struct device *dev, struct dp_catalog *catalog);
+void dp_aux_put(struct drm_dp_aux *aux);
+
+#endif /*__DP_AUX_H_*/

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index 497f97f86c82..e506e0756e92 100644
@@ -5,6 +5,7 @@
 
 #define pr_fmt(fmt)	"[drm-dp] %s: " fmt, __func__
 
+#include <linux/rational.h>
 #include <linux/delay.h>
 #include <linux/iopoll.h>
 #include <linux/rational.h>

@@ -131,51 +132,58 @@ static inline void dp_write_ahb(struct dp_catalog_private *catalog,
 static inline void dp_write_phy(struct dp_catalog_private *catalog,
 			       u32 offset, u32 data)
 {
+	offset += DP_PHY_REG_OFFSET;
 	/*
 	 * To make sure phy reg writes happens before any other operation,
 	 * this function uses writel() instread of writel_relaxed()
 	 */
-	writel(data, catalog->io->phy_io.base + offset);
+	writel(data, catalog->io->phy_reg.base + offset);
 }
 
 static inline u32 dp_read_phy(struct dp_catalog_private *catalog,
 			       u32 offset)
 {
+	offset += DP_PHY_REG_OFFSET;
 	/*
 	 * To make sure phy reg writes happens before any other operation,
 	 * this function uses writel() instread of writel_relaxed()
 	 */
-	return readl_relaxed(catalog->io->phy_io.base + offset);
+	return readl_relaxed(catalog->io->phy_reg.base + offset);
 }
 
 static inline void dp_write_pll(struct dp_catalog_private *catalog,
 			       u32 offset, u32 data)
 {
-	writel_relaxed(data, catalog->io->dp_pll_io.base + offset);
+	offset += DP_PHY_PLL_OFFSET;
+	writel_relaxed(data, catalog->io->phy_reg.base + offset);
 }
 
 static inline void dp_write_ln_tx0(struct dp_catalog_private *catalog,
 			       u32 offset, u32 data)
 {
-	writel_relaxed(data, catalog->io->ln_tx0_io.base + offset);
+	offset += DP_PHY_LN_TX0_OFFSET;
+	writel_relaxed(data, catalog->io->phy_reg.base + offset);
 }
 
 static inline void dp_write_ln_tx1(struct dp_catalog_private *catalog,
 			       u32 offset, u32 data)
 {
-	writel_relaxed(data, catalog->io->ln_tx1_io.base + offset);
+	offset += DP_PHY_LN_TX1_OFFSET;
+	writel_relaxed(data, catalog->io->phy_reg.base + offset);
 }
 
 static inline u32 dp_read_ln_tx0(struct dp_catalog_private *catalog,
 			       u32 offset)
 {
-	return readl_relaxed(catalog->io->ln_tx0_io.base + offset);
+	offset += DP_PHY_LN_TX0_OFFSET;
+	return readl_relaxed(catalog->io->phy_reg.base + offset);
 }
 
 static inline u32 dp_read_ln_tx1(struct dp_catalog_private *catalog,
 			       u32 offset)
 {
-	return readl_relaxed(catalog->io->ln_tx1_io.base + offset);
+	offset += DP_PHY_LN_TX1_OFFSET;
+	return readl_relaxed(catalog->io->phy_reg.base + offset);
 }
 
 static inline void dp_write_usb_cm(struct dp_catalog_private *catalog,

@@ -386,13 +394,16 @@ void dp_catalog_dump_regs(struct dp_catalog *dp_catalog)
 	dump_regs(catalog->io->usb3_dp_com.base, catalog->io->usb3_dp_com.len);
 
 	pr_info("LN TX0 regs\n");
-	dump_regs(catalog->io->ln_tx0_io.base, catalog->io->ln_tx0_io.len);
+	dump_regs(catalog->io->phy_reg.base + DP_PHY_LN_TX0_OFFSET,
+						DP_PHY_LN_TX0_SIZE);
 
 	pr_info("LN TX1 regs\n");
-	dump_regs(catalog->io->ln_tx1_io.base, catalog->io->ln_tx1_io.len);
+	dump_regs(catalog->io->phy_reg.base + DP_PHY_LN_TX1_OFFSET,
+						DP_PHY_LN_TX1_SIZE);
 
 	pr_info("DP PHY regs\n");
-	dump_regs(catalog->io->phy_io.base, catalog->io->phy_io.len);
+	dump_regs(catalog->io->phy_reg.base + DP_PHY_REG_OFFSET,
+						DP_PHY_REG_SIZE);
 }
 
 void dp_catalog_aux_setup(struct dp_catalog *dp_catalog)

index 4b0d64e504ac..86c958b21c97 100644
@@ -22,6 +22,7 @@
 #include "dp_ctrl.h"
 #include "dp_display.h"
 #include "dp_drm.h"
+#include "dp_pll.h"
 
 static struct msm_dp *g_dp_display;
 #define HPD_STRING_SIZE 30

@@ -42,6 +43,7 @@ struct dp_display_private {
 
 	struct dp_usbpd   *usbpd;
 	struct dp_parser  *parser;
+	struct msm_dp_pll *pll;
 	struct dp_power   *power;
 	struct dp_catalog *catalog;
 	struct drm_dp_aux *aux;

@@ -232,7 +234,6 @@ static int dp_display_process_hpd_high(struct dp_display_private *dp)
 	edid = dp->panel->edid;
 
 	dp->audio_supported = drm_detect_monitor_audio(edid);
-
 	dp_panel_handle_sink_request(dp->panel);
 
 	dp->dp_display.max_pclk_khz = DP_MAX_PIXEL_CLK_KHZ;

@@ -410,6 +411,7 @@ static void dp_display_deinit_sub_modules(struct dp_display_private *dp)
 	dp_ctrl_put(dp->ctrl);
 	dp_panel_put(dp->panel);
 	dp_aux_put(dp->aux);
+	dp_pll_put(dp->pll);
 }
 
 static int dp_init_sub_modules(struct dp_display_private *dp)

@@ -420,6 +422,9 @@ static int dp_init_sub_modules(struct dp_display_private *dp)
 	struct dp_panel_in panel_in = {
 		.dev = dev,
 	};
+	struct dp_pll_in pll_in = {
+		.pdev = dp->pdev,
+	};
 
 	/* Callback APIs used for cable status change event */
 	cb->configure  = dp_display_usbpd_configure_cb;

@@ -450,6 +455,17 @@ static int dp_init_sub_modules(struct dp_display_private *dp)
 		goto error;
 	}
 
+	pll_in.parser = dp->parser;
+	dp->pll = dp_pll_get(&pll_in);
+	if (IS_ERR_OR_NULL(dp->pll)) {
+		rc = -EINVAL;
+		DRM_ERROR("failed to initialize pll, rc = %d\n", rc);
+		dp->pll = NULL;
+		goto error;
+	}
+
+	dp->parser->pll = dp->pll;
+
 	dp->power = dp_power_get(dp->parser);
 	if (IS_ERR(dp->power)) {
 		rc = PTR_ERR(dp->power);

index dad8610685a6..4c53ed55d1cc 100644
@@ -25,4 +25,7 @@ int dp_display_request_irq(struct msm_dp *dp_display);
 bool dp_display_check_video_test(struct msm_dp *dp_display);
 int dp_display_get_test_bpp(struct msm_dp *dp_display);
 
+void __init msm_dp_pll_driver_register(void);
+void __exit msm_dp_pll_driver_unregister(void);
+
 #endif /* _DP_DISPLAY_H_ */

index 19c14c1ddbb4..1e480d01ddbb 100644
@@ -6,6 +6,7 @@
 #include <linux/of_gpio.h>
 
 #include "dp_parser.h"
+#include "dp_reg.h"
 
 static const struct dp_regulator_cfg sdm845_dp_reg_cfg = {
 	.num = 2,

@@ -52,6 +53,7 @@ static void dp_parser_unmap_io_resources(struct dp_parser *parser)
 	struct dp_io *io = &parser->io;
 
 	msm_dss_iounmap(&io->dp_controller);
+	msm_dss_iounmap(&io->phy_reg);
 	msm_dss_iounmap(&io->usb3_dp_com);
 }
 

index 2085b15aa4cf..aa0380b6a280 100644
@@ -10,6 +10,7 @@
 
 #include "dpu_io_util.h"
 #include "msm_drv.h"
+#include "dp_pll.h"
 
 #define DP_LABEL "MDSS DP DISPLAY"
 #define DP_MAX_PIXEL_CLK_KHZ	675000

@@ -66,10 +67,7 @@ struct dp_display_data {
  */
 struct dp_io {
 	struct dss_io_data dp_controller;
-	struct dss_io_data phy_io;
-	struct dss_io_data ln_tx0_io;
-	struct dss_io_data ln_tx1_io;
-	struct dss_io_data dp_pll_io;
+	struct dss_io_data phy_reg;
 	struct dss_io_data usb3_dp_com;
 };
 

@@ -117,6 +115,7 @@ struct dp_parser {
 	struct dp_pinctrl pinctrl;
 	struct dp_io io;
 	struct dp_display_data disp_data;
+	struct msm_dp_pll *pll;
 	const struct dp_regulator_cfg *regulator_cfg;
 	u32 max_dp_lanes;
 

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index 4aaa0aae4883..8b0a276d34a4 100644
@@ -101,6 +101,16 @@ static int dp_power_clk_init(struct dp_power_private *power)
 	core = &power->parser->mp[DP_CORE_PM];
 	ctrl = &power->parser->mp[DP_CTRL_PM];
 
+	if (power->parser->pll && power->parser->pll->get_provider) {
+		rc = power->parser->pll->get_provider(power->parser->pll,
+			&power->link_provider, &power->pixel_provider);
+		if (rc) {
+			DRM_ERROR("%s:provider failed,don't set parent\n",
+								__func__);
+			return 0;
+		}
+	}
+
 	rc = msm_dss_get_clk(dev, core->clk_config, core->num_clk);
 	if (rc) {
 		DRM_ERROR("failed to get %s clk. err=%d\n",

index ae55b78bf54a..756341e290ed 100644
@@ -14,7 +14,6 @@
  * @init: initializes the regulators/core clocks/GPIOs/pinctrl
  * @deinit: turns off the regulators/core clocks/GPIOs/pinctrl
  * @clk_enable: enable/disable the DP clocks
- * @set_link_clk_parent: set the parent of DP link clock
  * @set_pixel_clk_parent: set the parent of DP pixel clock
  */
 struct dp_power {

@@ -22,10 +21,49 @@ struct dp_power {
 	bool link_clks_on;
 };
 
+/**
+ * dp_power_init() - enable power supplies for display controller
+ *
+ * @power: instance of power module
+ * @flip: bool for flipping gpio direction
+ * return: 0 if success or error if failure.
+ *
+ * This API will turn on the regulators and configures gpio's
+ * aux/hpd.
+ */
 int dp_power_init(struct dp_power *power, bool flip);
+
+/**
+ * dp_power_deinit() - turn off regulators and gpios.
+ *
+ * @power: instance of power module
+ * return: 0 for success
+ *
+ * This API turns off power and regulators.
+ */
 int dp_power_deinit(struct dp_power *power);
+
+/**
+ * dp_power_clk_enable() - enable display controller clocks
+ *
+ * @power: instance of power module
+ * @pm_type: type of pm, core/ctrl/phy
+ * @enable: enables or disables
+ * return: pointer to allocated power module data
+ *
+ * This API will call setrate and enable for DP clocks
+ */
+
 int dp_power_clk_enable(struct dp_power *power, enum dp_pm_type pm_type,
 				bool enable);
+/**
+ * dp_power_set_link_clk_parent() - configures parent of link clocks
+ *
+ * @power: instance of power module
+ * return: 0 for success, error for failures
+ *
+ * This API will set the link clock parent source
+ */
 int dp_power_set_link_clk_parent(struct dp_power *power);
 
 /**

index 28c16822bb73..ad6f1760f893 100644
@@ -6,6 +6,22 @@
 #ifndef _DP_REG_H_
 #define _DP_REG_H_
 
+/* DP PHY Register Regions */
+#define REG_DP_PHY_REGION_BASE			(0x088ea000)
+#define REG_DP_PHY_REGION_SIZE			(0x00000C00)
+
+#define REG_USB3_DP_COM_REGION_BASE		(0x088e8000)
+#define REG_USB3_DP_COM_REGION_SIZE		(0x00000020)
+
+#define DP_PHY_PLL_OFFSET			(0x00000000)
+#define DP_PHY_PLL_SIZE				(0x00000200)
+#define DP_PHY_REG_OFFSET			(0x00000A00)
+#define DP_PHY_REG_SIZE				(0x00000200)
+#define DP_PHY_LN_TX0_OFFSET			(0x00000200)
+#define DP_PHY_LN_TX0_SIZE			(0x00000200)
+#define DP_PHY_LN_TX1_OFFSET			(0x00000600)
+#define DP_PHY_LN_TX1_SIZE			(0x00000200)
+
 /* DP_TX Registers */
 #define REG_DP_HW_VERSION			(0x00000000)
 

index 8b14d7c42f37..6a9e257d2fe6 100644
@@ -2025,7 +2025,7 @@ static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc,
 {
 	int ret = 0;
 	int i = 0;
-	enum dpu_intf_type intf_type;
+	enum dpu_intf_type intf_type = INTF_NONE;
 	struct dpu_enc_phys_init_params phys_params;
 
 	if (!dpu_enc) {

@@ -2047,9 +2047,9 @@ static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc,
 	case DRM_MODE_ENCODER_DSI:
 		intf_type = INTF_DSI;
 		break;
-	default:
-		DPU_ERROR_ENC(dpu_enc, "unsupported display interface type\n");
-		return -EINVAL;
+	case DRM_MODE_ENCODER_TMDS:
+		intf_type = INTF_DP;
+		break;
 	}
 
 	WARN_ON(disp_info->num_of_h_tiles < 1);

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index 62bc33cb0d3a..5e977d5ff341 100644
@@ -752,6 +752,23 @@ static void dpu_irq_preinstall(struct msm_kms *kms)
 	dpu_core_irq_preinstall(dpu_kms);
 }
 
+static int dpu_irq_postinstall(struct msm_kms *kms)
+{
+	struct msm_drm_private *priv;
+	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
+
+	if (!dpu_kms || !dpu_kms->dev)
+		return -EINVAL;
+
+	priv = dpu_kms->dev->dev_private;
+	if (!priv)
+		return -EINVAL;
+
+	msm_dp_irq_postinstall(priv->dp);
+
+	return 0;
+}
+
 static void dpu_irq_uninstall(struct msm_kms *kms)
 {
 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);

@@ -762,6 +779,7 @@ static void dpu_irq_uninstall(struct msm_kms *kms)
 static const struct msm_kms_funcs kms_funcs = {
 	.hw_init         = dpu_kms_hw_init,
 	.irq_preinstall  = dpu_irq_preinstall,
+	.irq_postinstall = dpu_irq_postinstall,
 	.irq_uninstall   = dpu_irq_uninstall,
 	.irq             = dpu_irq,
 	.enable_commit   = dpu_kms_enable_commit,

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index 4cf9ad4206cc..bcd381bfc9cd 100644
@@ -75,7 +75,10 @@ void dp_catalog_ctrl_reset(struct dp_catalog *dp_catalog);
 void dp_catalog_ctrl_usb_reset(struct dp_catalog *dp_catalog, bool flip);
 bool dp_catalog_ctrl_mainlink_ready(struct dp_catalog *dp_catalog);
 void dp_catalog_ctrl_enable_irq(struct dp_catalog *dp_catalog, bool enable);
-void dp_catalog_ctrl_hpd_config(struct dp_catalog *dp_catalog, bool enable);
+void dp_catalog_hpd_config_intr(struct dp_catalog *dp_catalog,
+			u32 intr_mask, bool en);
+void dp_catalog_ctrl_hpd_config(struct dp_catalog *dp_catalog);
+u32 dp_catalog_hpd_get_intr_status(struct dp_catalog *dp_catalog);
 void dp_catalog_ctrl_phy_reset(struct dp_catalog *dp_catalog);
 void dp_catalog_ctrl_phy_lane_cfg(struct dp_catalog *dp_catalog, bool flipped,
 				u8 lane_cnt);

index 9a06cbf40af1..ae07e43b541b 100644
@@ -1563,7 +1563,6 @@ int dp_ctrl_on(struct dp_ctrl *dp_ctrl)
 	rate = ctrl->panel->link_info.rate;
 
 	dp_power_clk_enable(ctrl->power, DP_CORE_PM, true);
-	dp_catalog_ctrl_hpd_config(ctrl->catalog, true);
 
 	if (ctrl->link->sink_request & DP_TEST_LINK_PHY_TEST_PATTERN) {
 		DRM_DEBUG_DP("using phy test link parameters\n");

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index ad6f1760f893..6b3e297e4e04 100644
@@ -54,10 +54,22 @@
 #define DP_DP_IRQ_HPD_INT_MASK			(0x00000002)
 #define DP_DP_HPD_REPLUG_INT_MASK		(0x00000004)
 #define DP_DP_HPD_UNPLUG_INT_MASK		(0x00000008)
+#define DP_DP_HPD_INT_MASK			(DP_DP_HPD_PLUG_INT_MASK | \
+						DP_DP_IRQ_HPD_INT_MASK | \
+						DP_DP_HPD_REPLUG_INT_MASK | \
+						DP_DP_HPD_UNPLUG_INT_MASK)
+#define DP_DP_HPD_STATE_STATUS_CONNECTED	(0x40000000)
+#define DP_DP_HPD_STATE_STATUS_PENDING		(0x20000000)
+#define DP_DP_HPD_STATE_STATUS_DISCONNECTED	(0x00000000)
+#define DP_DP_HPD_STATE_STATUS_MASK		(0xE0000000)
 
 #define REG_DP_DP_HPD_REFTIMER			(0x00000018)
+#define DP_DP_HPD_REFTIMER_ENABLE		(1 << 16)
+
 #define REG_DP_DP_HPD_EVENT_TIME_0		(0x0000001C)
 #define REG_DP_DP_HPD_EVENT_TIME_1		(0x00000020)
+#define DP_DP_HPD_EVENT_TIME_0_VAL		(0x3E800FA)
+#define DP_DP_HPD_EVENT_TIME_1_VAL		(0x1F407D0)
 
 #define REG_DP_AUX_CTRL				(0x00000030)
 #define DP_AUX_CTRL_ENABLE			(0x00000001)

index 9360331a8f39..b4b213e57f99 100644
@@ -390,6 +390,7 @@ int msm_dp_display_disable(struct msm_dp *dp, struct drm_encoder *encoder);
 void msm_dp_display_mode_set(struct msm_dp *dp, struct drm_encoder *encoder,
 				struct drm_display_mode *mode,
 				struct drm_display_mode *adjusted_mode);
+void msm_dp_irq_postinstall(struct msm_dp *dp_display);
 
 #else
 static inline int __init msm_dp_register(void)

@@ -421,6 +422,11 @@ static inline void msm_dp_display_mode_set(struct msm_dp *dp,
 				struct drm_display_mode *adjusted_mode)
 {
 }
+
+static inline void msm_dp_irq_postinstall(struct msm_dp *dp_display)
+{
+}
+
 #endif
 
 void __init msm_mdp_register(void);