Some SoCs like the MT8167 have a hard limit on the maximal supported HDMI TMDS clock, so add a configuration value to filter out those modes.
Signed-off-by: Fabien Parent fparent@baylibre.com Signed-off-by: Neil Armstrong narmstrong@baylibre.com --- drivers/gpu/drm/mediatek/mtk_hdmi.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c index 0539262e69d3..bc50d97f2553 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -149,6 +149,7 @@ struct hdmi_audio_param { struct mtk_hdmi_conf { bool tz_disabled; bool cea_modes_only; + unsigned long max_mode_clock; };
struct mtk_hdmi { @@ -1226,6 +1227,10 @@ static int mtk_hdmi_bridge_mode_valid(struct drm_bridge *bridge, if (hdmi->conf->cea_modes_only && !drm_match_cea_mode(mode)) return MODE_BAD;
+ if (hdmi->conf->max_mode_clock && + mode->clock > hdmi->conf->max_mode_clock) + return MODE_CLOCK_HIGH; + if (mode->clock < 27000) return MODE_CLOCK_LOW; if (mode->clock > 297000)