imxfb: Fix margin settings

The var->hsync_len, var->right_margin and var->left_margin fields
should contain the real values, not the hardware dependent values.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 9dd2757..bd1cb75 100644 (file)
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -495,9 +495,9 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
                        info->fix.id, var->lower_margin);
 #endif
 
-       writel(HCR_H_WIDTH(var->hsync_len) |
-               HCR_H_WAIT_1(var->right_margin) |
-               HCR_H_WAIT_2(var->left_margin),
+       writel(HCR_H_WIDTH(var->hsync_len - 1) |
+               HCR_H_WAIT_1(var->right_margin - 1) |
+               HCR_H_WAIT_2(var->left_margin - 3),
                fbi->regs + LCDC_HCR);
 
        writel(VCR_V_WIDTH(var->vsync_len) |