video: imxfb: Fix the maximum value for yres

MX27 and MX25 have 10 bits in the YMAX field of LCDC Size Register.

Fix the maximum value for yres.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 5c363d0..1ab2c25 100644 (file)
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -53,11 +53,8 @@
 #define LCDC_SIZE      0x04
 #define SIZE_XMAX(x)   ((((x) >> 4) & 0x3f) << 20)
 
-#ifdef CONFIG_ARCH_MX1
-#define SIZE_YMAX(y)   ((y) & 0x1ff)
-#else
-#define SIZE_YMAX(y)   ((y) & 0x3ff)
-#endif
+#define YMAX_MASK       (cpu_is_mx1() ? 0x1ff : 0x3ff)
+#define SIZE_YMAX(y)   ((y) & YMAX_MASK)
 
 #define LCDC_VPW       0x08
 #define VPW_VPW(x)     ((x) & 0x3ff)
@@ -623,7 +620,7 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
        if (var->right_margin > 255)
                printk(KERN_ERR "%s: invalid right_margin %d\n",
                        info->fix.id, var->right_margin);
-       if (var->yres < 1 || var->yres > 511)
+       if (var->yres < 1 || var->yres > YMAX_MASK)
                printk(KERN_ERR "%s: invalid yres %d\n",
                        info->fix.id, var->yres);
        if (var->vsync_len > 100)