diff options
| -rw-r--r-- | drivers/video/pxafb.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 1820c4a24434..33a6aacfcbe3 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -80,7 +80,8 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info *); static void set_ctrlr_state(struct pxafb_info *fbi, u_int state); -static void setup_base_frame(struct pxafb_info *fbi, int branch); +static void setup_base_frame(struct pxafb_info *fbi, + struct fb_var_screeninfo *var, int branch); static int setup_frame_dma(struct pxafb_info *fbi, int dma, int pal, unsigned long offset, size_t size); @@ -531,12 +532,22 @@ static int pxafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { struct pxafb_info *fbi = (struct pxafb_info *)info; + struct fb_var_screeninfo newvar; int dma = DMA_MAX + DMA_BASE; if (fbi->state != C_ENABLE) return 0; - setup_base_frame(fbi, 1); + /* Only take .xoffset, .yoffset and .vmode & FB_VMODE_YWRAP from what + * was passed in and copy the rest from the old screeninfo. + */ + memcpy(&newvar, &fbi->fb.var, sizeof(newvar)); + newvar.xoffset = var->xoffset; + newvar.yoffset = var->yoffset; + newvar.vmode &= ~FB_VMODE_YWRAP; + newvar.vmode |= var->vmode & FB_VMODE_YWRAP; + + setup_base_frame(fbi, &newvar, 1); if (fbi->lccr0 & LCCR0_SDS) lcd_writel(fbi, FBR1, fbi->fdadr[dma + 1] | 0x1); @@ -1052,9 +1063,10 @@ static int setup_frame_dma(struct pxafb_info *fbi, int dma, int pal, return 0; } -static void setup_base_frame(struct pxafb_info *fbi, int branch) +static void setup_base_frame(struct pxafb_info *fbi, + struct fb_var_screeninfo *var, + int branch) { - struct fb_var_screeninfo *var = &fbi->fb.var; struct fb_fix_screeninfo *fix = &fbi->fb.fix; int nbytes, dma, pal, bpp = var->bits_per_pixel; unsigned long offset; @@ -1332,7 +1344,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, #endif setup_parallel_timing(fbi, var); - setup_base_frame(fbi, 0); + setup_base_frame(fbi, var, 0); fbi->reg_lccr0 = fbi->lccr0 | (LCCR0_LDM | LCCR0_SFM | LCCR0_IUM | LCCR0_EFM | |