The hardware state readout oopses after several warnings when trying to
use HDMI on port A, if such a combination is configured in VBT. Filter
the combo out already at the VBT parsing phase.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102889
Cc: [email protected]
Cc: Imre Deak <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
---
 drivers/gpu/drm/i915/intel_bios.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_bios.c 
b/drivers/gpu/drm/i915/intel_bios.c
index 5949750a35ee..f85f736569f1 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1162,6 +1162,11 @@ static void parse_ddi_port(struct drm_i915_private 
*dev_priv, enum port port,
        is_hdmi = is_dvi && (child->device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) 
== 0;
        is_edp = is_dp && (child->device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);
 
+       if (port == PORT_A && is_hdmi) {
+               DRM_DEBUG_KMS("VBT claims port A supports HDMI, ignoring\n");
+               is_hdmi = false;
+       }
+
        info->supports_dvi = is_dvi;
        info->supports_hdmi = is_hdmi;
        info->supports_dp = is_dp;
-- 
2.11.0

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