drm/panel: st7701: Swap vertical front and back porch timings

Vertical front and back porch values on existing driver are swapped.
The existing timings are still working as expected, but to make sure
it can compatible with techstar ts8550b bsp timings this patch swap
the same values.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190512184827.13905-1-jagan@amarulasolutions.com

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c
index 63f9a1c..09c5d9a 100644 (file)
--- a/drivers/gpu/drm/panel/panel-sitronix-st7701.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c
@@ -305,9 +305,9 @@ static const struct drm_display_mode ts8550b_mode = {
        .htotal         = 480 + 38 + 12 + 12,
 
        .vdisplay       = 854,
-       .vsync_start    = 854 + 4,
-       .vsync_end      = 854 + 4 + 8,
-       .vtotal         = 854 + 4 + 8 + 18,
+       .vsync_start    = 854 + 18,
+       .vsync_end      = 854 + 18 + 8,
+       .vtotal         = 854 + 18 + 8 + 4,
 
        .width_mm       = 69,
        .height_mm      = 139,