Use stratight-forward defintion of PANEL_PLANE_BR register fields and
use open-coded implementation for register manipulations
Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 #define PANEL_PLANE_TL_LEFT_MASK                      0xeff
 
 #define PANEL_PLANE_BR                                0x080020
-#define PANEL_PLANE_BR_BOTTOM                         26:16
-#define PANEL_PLANE_BR_RIGHT                          10:0
+#define PANEL_PLANE_BR_BOTTOM_SHIFT                   16
+#define PANEL_PLANE_BR_BOTTOM_MASK                    (0xeff << 16)
+#define PANEL_PLANE_BR_RIGHT_MASK                     0xeff
 
 #define PANEL_HORIZONTAL_TOTAL                        0x080024
 #define PANEL_HORIZONTAL_TOTAL_TOTAL                  27:16
 
 
                POKE32(PANEL_PLANE_TL, 0);
 
-               POKE32(PANEL_PLANE_BR,
-                       FIELD_VALUE(0, PANEL_PLANE_BR, BOTTOM, var->yres - 1)|
-                       FIELD_VALUE(0, PANEL_PLANE_BR, RIGHT, var->xres - 1));
+               reg = ((var->yres - 1) << PANEL_PLANE_BR_BOTTOM_SHIFT) &
+                      PANEL_PLANE_BR_BOTTOM_MASK;
+               reg |= ((var->xres - 1) & PANEL_PLANE_BR_RIGHT_MASK);
+               POKE32(PANEL_PLANE_BR, reg);
 
                /* set pixel format */
                reg = PEEK32(PANEL_DISPLAY_CTRL);