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path: root/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
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Diffstat (limited to 'drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c')
-rw-r--r--drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
index e3b34a345546..3de41de43127 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
@@ -357,7 +357,9 @@ static void sun6i_dsi_inst_init(struct sun6i_dsi *dsi,
static u16 sun6i_dsi_get_video_start_delay(struct sun6i_dsi *dsi,
struct drm_display_mode *mode)
{
- return mode->vtotal - (mode->vsync_end - mode->vdisplay) + 1;
+ u16 start = clamp(mode->vtotal - mode->vdisplay - 10, 8, 100);
+
+ return mode->vtotal - (mode->vsync_end - mode->vdisplay) + start;
}
static void sun6i_dsi_setup_burst(struct sun6i_dsi *dsi,