1 files changed, 16 insertions, 13 deletions

diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 25bf4b8b6b53..ab816cadb470 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -306,8 +306,6 @@ static void pxafb_setmode(struct fb_var_screeninfo *var,
         var->lower_margin       = mode->lower_margin;
         var->sync               = mode->sync;
         var->grayscale          = mode->cmap_greyscale;
-        var->xres_virtual       = var->xres;
-        var->yres_virtual       = var->yres;
 }
 
 /*
@@ -345,10 +343,14 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
                         return -EINVAL;
         }
 
-        var->xres_virtual =
-                max(var->xres_virtual, var->xres);
-        var->yres_virtual =
-                max(var->yres_virtual, var->yres);
+        /* we don't support xpan, force xres_virtual to be equal to xres */
+        var->xres_virtual = var->xres;
+
+        if (var->accel_flags & FB_ACCELF_TEXT)
+                var->yres_virtual = fbi->fb.fix.smem_len /
+                        (var->xres_virtual * var->bits_per_pixel / 8);
+        else
+                var->yres_virtual = max(var->yres_virtual, var->yres);
 
         /*
          * Setup the RGB parameters for this display.
@@ -878,7 +880,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var,
                               struct pxafb_info *fbi)
 {
         u_long flags;
-        size_t nbytes;
+        size_t nbytes, offset;
 
 #if DEBUG_VAR
         if (!(fbi->lccr0 & LCCR0_LCDT)) {
@@ -939,17 +941,18 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var,
 
         fbi->reg_lccr3 |= pxafb_bpp_to_lccr3(var);
 
-        nbytes = var->yres * fbi->fb.fix.line_length;
+        nbytes = fbi->fb.fix.line_length * var->yres;
+        offset = fbi->fb.fix.line_length * var->yoffset;
 
         if ((fbi->lccr0 & LCCR0_SDS) == LCCR0_Dual) {
                 nbytes = nbytes / 2;
-                setup_frame_dma(fbi, DMA_LOWER, PAL_NONE, nbytes, nbytes);
+                setup_frame_dma(fbi, DMA_LOWER, PAL_NONE, offset + nbytes, nbytes);
         }
 
         if ((var->bits_per_pixel >= 16) || (fbi->lccr0 & LCCR0_LCDT))
-                setup_frame_dma(fbi, DMA_BASE, PAL_NONE, 0, nbytes);
+                setup_frame_dma(fbi, DMA_BASE, PAL_NONE, offset, nbytes);
         else
-                setup_frame_dma(fbi, DMA_BASE, PAL_BASE, 0, nbytes);
+                setup_frame_dma(fbi, DMA_BASE, PAL_BASE, offset, nbytes);
 
         fbi->reg_lccr4 = lcd_readl(fbi, LCCR4) & ~LCCR4_PAL_FOR_MASK;
         fbi->reg_lccr4 |= (fbi->lccr4 & LCCR4_PAL_FOR_MASK);
@@ -1362,7 +1365,7 @@ static struct pxafb_info * __devinit pxafb_init_fbinfo(struct device *dev)
         fbi->fb.fix.type        = FB_TYPE_PACKED_PIXELS;
         fbi->fb.fix.type_aux    = 0;
         fbi->fb.fix.xpanstep    = 0;
-        fbi->fb.fix.ypanstep    = 0;
+        fbi->fb.fix.ypanstep    = 1;
         fbi->fb.fix.ywrapstep   = 0;
         fbi->fb.fix.accel       = FB_ACCEL_NONE;
 
@@ -1370,7 +1373,7 @@ static struct pxafb_info * __devinit pxafb_init_fbinfo(struct device *dev)
         fbi->fb.var.activate    = FB_ACTIVATE_NOW;
         fbi->fb.var.height      = -1;
         fbi->fb.var.width       = -1;
-        fbi->fb.var.accel_flags = 0;
+        fbi->fb.var.accel_flags = FB_ACCELF_TEXT;
         fbi->fb.var.vmode       = FB_VMODE_NONINTERLACED;
 
         fbi->fb.fbops           = &pxafb_ops;