disp: msm: dsi: Add support for parsing mdp_intf base address from dt

Currently, mdp_intf_line_count and mdp_intf_tear_line_count register
addresses are defined in dsi_ctrl_hw for debug feature. But mdp_intf
base address is target specific and independent of dsi controller
version. This change adds support for parsing the mdp intf base
address from dt, thereby remapping using base + offset addressing.

Change-Id: Ibb72dfe84a786a5c8b95f6a400e8333f6b46814a
Signed-off-by: Lipsa Rout <lrout@codeaurora.org>

msm/dsi/dsi_ctrl.c

@@ -630,6 +630,7 @@ static int dsi_ctrl_init_regmap(struct platform_device *pdev,
 		}
 		ctrl->hw.mmss_misc_base = ptr;
 		ctrl->hw.disp_cc_base = NULL;
+		ctrl->hw.mdp_intf_base = NULL;
 		break;
 	case DSI_CTRL_VERSION_2_2:
 	case DSI_CTRL_VERSION_2_3:
@@ -643,6 +644,10 @@ static int dsi_ctrl_init_regmap(struct platform_device *pdev,
 		}
 		ctrl->hw.disp_cc_base = ptr;
 		ctrl->hw.mmss_misc_base = NULL;
+
+		ptr = msm_ioremap(pdev, "mdp_intf_base", ctrl->name);
+		if (!IS_ERR(ptr))
+			ctrl->hw.mdp_intf_base = ptr;
 		break;
 	default:
 		break;
@@ -2093,9 +2098,6 @@ static int dsi_ctrl_dev_probe(struct platform_device *pdev)
 		goto fail_clks;
 	}
 
-	if (dsi_ctrl->hw.ops.map_mdp_regs)
-		dsi_ctrl->hw.ops.map_mdp_regs(pdev, &dsi_ctrl->hw);
-
 	item->ctrl = dsi_ctrl;
 	sde_dbg_dsi_ctrl_register(dsi_ctrl->hw.base, dsi_ctrl->name);