The MT8167 SoC have a hard limit on the maximal supported HDMI TMDS clock,
and is not validated and supported for HDMI modes out of HDMI CEA modes,
so add a configuration entry linked to the MT8167 compatible.

Signed-off-by: Fabien Parent <fpar...@baylibre.com>
Signed-off-by: Neil Armstrong <narmstr...@baylibre.com>
---
 drivers/gpu/drm/mediatek/mtk_hdmi.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c 
b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index bc50d97f2553..c1651a83700d 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1787,10 +1787,18 @@ static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 
= {
        .tz_disabled = true,
 };
 
+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8167 = {
+       .max_mode_clock = 148500,
+       .cea_modes_only = true,
+};
+
 static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
        { .compatible = "mediatek,mt2701-hdmi",
          .data = &mtk_hdmi_conf_mt2701,
        },
+       { .compatible = "mediatek,mt8167-hdmi",
+         .data = &mtk_hdmi_conf_mt8167,
+       },
        { .compatible = "mediatek,mt8173-hdmi",
        },
        {}
-- 
2.25.1

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