drm/panel: simple: fix vertical timings for Innolux AT043TN24

The vsync length should be 10 lines, as specified in the data sheet.
This gets the actual refresh rate closer to nominal 60 Hz given the
9 MHz pixel clock.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Marco Franchi <marco.franchi@nxp.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171011125958.23064-1-p.zabel@pengutronix.de

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index a3c96d2..fae989b 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1018,8 +1018,8 @@ static const struct drm_display_mode innolux_at043tn24_mode = {
        .htotal = 480 + 2 + 41 + 2,
        .vdisplay = 272,
        .vsync_start = 272 + 2,
-       .vsync_end = 272 + 2 + 11,
-       .vtotal = 272 + 2 + 11 + 2,
+       .vsync_end = 272 + 2 + 10,
+       .vtotal = 272 + 2 + 10 + 2,
        .vrefresh = 60,
        .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
 };