video: mxsfb: enable setting VSYNC negative polarity

VSYNC signal can now be flipped by writing its bitmask on vdctrl0
register.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>

diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index 9912cf3d820c4cbc3654eed6522c91c6af39858f..4d33e24e1ae890e88311e7ea554b88a3173dd562 100644 (file)
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -127,6 +127,8 @@ static void mxs_lcd_init(struct udevice *dev, u32 fb_addr,
 
        if(flags & DISPLAY_FLAGS_HSYNC_HIGH)
                vdctrl0 |= LCDIF_VDCTRL0_HSYNC_POL;
+       if(flags & DISPLAY_FLAGS_VSYNC_HIGH)
+               vdctrl0 |= LCDIF_VDCTRL0_VSYNC_POL;
        writel(vdctrl0, &regs->hw_lcdif_vdctrl0);
        writel(timings->vback_porch.typ + timings->vfront_porch.typ +
                timings->vsync_len.typ + timings->vactive.typ,