video: tegra20: dsi: calculate packet parameters for video mode
Calculate packet parameters for video mode same way it is done or
command mode, by halving timings plugged into equations.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/drivers/video/tegra20/tegra-dsi.c b/drivers/video/tegra20/tegra-dsi.c
index e1502d8..2beb9ec 100644
--- a/drivers/video/tegra20/tegra-dsi.c
+++ b/drivers/video/tegra20/tegra-dsi.c
@@ -697,12 +697,19 @@
/* horizontal back porch */
hbp = timing->hback_porch.typ * mul / div;
- if ((mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) == 0)
- hbp += hsw;
-
/* horizontal front porch */
hfp = timing->hfront_porch.typ * mul / div;
+ if (priv->master || priv->slave) {
+ hact /= 2;
+ hsw /= 2;
+ hbp = hbp / 2 - 1;
+ hfp /= 2;
+ }
+
+ if ((mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) == 0)
+ hbp += hsw;
+
/* subtract packet overhead */
hsw -= 10;
hbp -= 14;