platform: remove unused REG_DSI macro

REG_DSI macro is no longer supported for MDSS-based targets since
the preferred approach for DSI register programming is by specifying
and offset with respect to a particular DSI controller's base. Remove
these macros from corresponding platforms.

Change-Id: I39eda8e435f55548d34fc64b5687a1ca71bd5e56
diff --git a/platform/apq8084/include/platform/iomap.h b/platform/apq8084/include/platform/iomap.h
index 3129ba4..d1fac29 100644
--- a/platform/apq8084/include/platform/iomap.h
+++ b/platform/apq8084/include/platform/iomap.h
@@ -247,7 +247,6 @@
 #define DSI1_PHY_BASE               (0xFD923100)
 #define DSI0_PLL_BASE               (0xFD922A00)
 #define DSI1_PLL_BASE               (0xFD923000)
-#define REG_DSI(off)                (MIPI_DSI_BASE + 0x04 + (off))
 #define MDP_BASE                    (0xfd900000)
 #define REG_MDP(off)                (MDP_BASE + (off))
 #define MDP_VP_0_VIG_0_BASE         REG_MDP(0x1200)
diff --git a/platform/msm8226/include/platform/iomap.h b/platform/msm8226/include/platform/iomap.h
index 4429c0a..fec3f86 100644
--- a/platform/msm8226/include/platform/iomap.h
+++ b/platform/msm8226/include/platform/iomap.h
@@ -176,7 +176,6 @@
 #define DSI1_PHY_BASE               DSI0_PHY_BASE
 #define DSI0_PLL_BASE               (0xFD922A00)
 #define DSI1_PLL_BASE               DSI0_PLL_BASE
-#define REG_DSI(off)                (MIPI_DSI_BASE + 0x04 + (off))
 #define MDP_BASE                    (0xfd900000)
 #define REG_MDP(off)                (MDP_BASE + (off))
 #define MDP_VP_0_VIG_0_BASE          REG_MDP(0x1200)
diff --git a/platform/msm8909/include/platform/iomap.h b/platform/msm8909/include/platform/iomap.h
index b47fede..e199906 100644
--- a/platform/msm8909/include/platform/iomap.h
+++ b/platform/msm8909/include/platform/iomap.h
@@ -167,8 +167,6 @@
 #define DSI1_PHY_BASE               DSI0_PHY_BASE
 #define DSI0_PLL_BASE               (0x1AC8300)
 #define DSI1_PLL_BASE               DSI0_PLL_BASE
-#define REG_DSI(off)                (MIPI_DSI_BASE + 0x04 + (off))
-
 
 /* MDP */
 #define MDP_BASE                    0x1A00000
diff --git a/platform/msm8916/include/platform/iomap.h b/platform/msm8916/include/platform/iomap.h
index 014e6ae..e58525f 100644
--- a/platform/msm8916/include/platform/iomap.h
+++ b/platform/msm8916/include/platform/iomap.h
@@ -159,8 +159,6 @@
 #define DSI1_PHY_BASE               (0x1AA0500)
 #define DSI0_PLL_BASE               (0x1A98300)
 #define DSI1_PLL_BASE               DSI0_PLL_BASE
-#define DSIPHY_PLL_CTRL(x)       REG_DSI(DSI0_PLL_BASE + (x) * 4)
-#define REG_DSI(off)                (MIPI_DSI_BASE + 0x04 + (off))
 #define MDP_BASE                    (0x1A00000)
 #define REG_MDP(off)                (MDP_BASE + (off))
 #define MDP_HW_REV                              REG_MDP(0x1000)
diff --git a/platform/msm8974/include/platform/iomap.h b/platform/msm8974/include/platform/iomap.h
index 8463a77..0b1e4cf 100644
--- a/platform/msm8974/include/platform/iomap.h
+++ b/platform/msm8974/include/platform/iomap.h
@@ -224,7 +224,6 @@
 #define DSI1_PHY_BASE               (0xFD923100)
 #define DSI0_PLL_BASE               (0xFD922A00)
 #define DSI1_PLL_BASE               (0xFD923000)
-#define REG_DSI(off)                (MIPI_DSI_BASE + 0x04 + (off))
 #define EDP_BASE                    (0xFD923400)
 #define MDP_BASE                    (0xfd900000)
 #define REG_MDP(off)                (MDP_BASE + (off))
diff --git a/platform/msm8994/include/platform/iomap.h b/platform/msm8994/include/platform/iomap.h
index db20bf9..2427869 100644
--- a/platform/msm8994/include/platform/iomap.h
+++ b/platform/msm8994/include/platform/iomap.h
@@ -240,7 +240,6 @@
 #define DSI1_PHY_BASE               (0xFD9A0500)
 #define DSI0_PLL_BASE               (0xFD998300)
 #define DSI1_PLL_BASE               (0xFD9A0300)
-#define REG_DSI(off)                (MIPI_DSI_BASE + 0x04 + (off))
 
 #define MDP_BASE                    (0xfd900000)