drm/tegra: sor: Reject HDMI 2.0 modes

Enabling HDMI 2.0 modes requires extra programming and will not work
with the current driver, so reject all those modes.

Signed-off-by: Thierry Reding <treding@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index cb7e06062174..43e934e8fbec 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -1372,6 +1372,10 @@ static enum drm_mode_status
 tegra_sor_connector_mode_valid(struct drm_connector *connector,
                                struct drm_display_mode *mode)
 {
+        /* HDMI 2.0 modes are not yet supported */
+        if (mode->clock > 340000)
+                return MODE_NOCLOCK;
+
         return MODE_OK;
 }