Validate the computed TMDS character rate against connector->hdmi.max_tmds_char_rate when no driver-specific tmds_char_rate_valid() hook is provided.
This gives HDMI connectors a common fallback for rejecting modes whose TMDS character rate exceeds the connector limit, while still allowing drivers with custom validation requirements to implement their own tmds_char_rate_valid() callback. Signed-off-by: Cristian Ciocaltea <[email protected]> --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index ce17eeefc2da..db76699093e8 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -566,6 +566,9 @@ hdmi_clock_valid(const struct drm_connector *connector, status = funcs->tmds_char_rate_valid(connector, mode, clock); if (status != MODE_OK) return status; + } else if (connector->hdmi.max_tmds_char_rate) { + if (clock > connector->hdmi.max_tmds_char_rate) + return MODE_CLOCK_HIGH; } return MODE_OK; -- 2.54.0
