drm: tegra: fix front_porch <-> back_porch mixup

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / tegra / dc.c

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 0744103..54683e4 100644 (file)
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -102,12 +102,12 @@ static int tegra_dc_set_timings(struct tegra_dc *dc,
                ((mode->hsync_end - mode->hsync_start) <<  0);
        tegra_dc_writel(dc, value, DC_DISP_SYNC_WIDTH);
 
-       value = ((mode->vsync_start - mode->vdisplay) << 16) |
-               ((mode->hsync_start - mode->hdisplay) <<  0);
-       tegra_dc_writel(dc, value, DC_DISP_BACK_PORCH);
-
        value = ((mode->vtotal - mode->vsync_end) << 16) |
                ((mode->htotal - mode->hsync_end) <<  0);
+       tegra_dc_writel(dc, value, DC_DISP_BACK_PORCH);
+
+       value = ((mode->vsync_start - mode->vdisplay) << 16) |
+               ((mode->hsync_start - mode->hdisplay) <<  0);
        tegra_dc_writel(dc, value, DC_DISP_FRONT_PORCH);
 
        value = (mode->vdisplay << 16) | mode->hdisplay;