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path: root/drivers/gpu/drm/i915/intel_hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_hdmi.c')
-rw-r--r--drivers/gpu/drm/i915/intel_hdmi.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index b62bd8251c2a..b0b6dd19a70d 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1295,6 +1295,9 @@ intel_hdmi_mode_valid(struct drm_connector *connector,
if (mode->flags & DRM_MODE_FLAG_DBLCLK)
clock *= 2;
+ if (drm_mode_is_420_only(&connector->display_info, mode))
+ clock /= 2;
+
/* check if we can do 8bpc */
status = hdmi_port_clock_valid(hdmi, clock, true, force_dvi);