From: marius vlad <marius.c.vlad@xxxxxxxxx>
Make a copy of drm_property_blob data for user-supplied EDID blobs.
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx>
Signed-off-by: Marius Vlad <marius.c.vlad@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_hdmi.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index a580de8..76b8023 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1463,6 +1463,16 @@ intel_hdmi_set_edid(struct drm_connector *connector)
intel_gmbus_get_adapter(dev_priv,
intel_hdmi->ddc_bus));
+ /*
+ * Use the user-supplied EDID blob in case we don't have an
+ * EDID from the display.
+ */
+ if (!edid && connector->override_edid) {
+ edid = kmemdup(connector->edid_blob_ptr->data,
+ connector->edid_blob_ptr->length,
+ GFP_KERNEL);
+ }
+
intel_hdmi_dp_dual_mode_detect(connector, edid != NULL);
intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS);
--
2.7.4
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