Patch "drm/i915/bios: ignore HDMI on port A" has been added to the 4.13-stable tree

This is a note to let you know that I've just added the patch titled

drm/i915/bios: ignore HDMI on port A

to the 4.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:

     drm-i915-bios-ignore-hdmi-on-port-a.patch

and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Jani Nikula <[email protected]>
Date: Thu, 21 Sep 2017 17:19:20 +0300
Subject: drm/i915/bios: ignore HDMI on port A
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From: Jani Nikula <[email protected]>

commit 2ba7d7e0437127314864238f8bfcb8369d81075c upstream.

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.

v2: also ignore DVI (Ville)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102889

---
 drivers/gpu/drm/i915/intel_bios.c |    7 +++++++
 1 file changed, 7 insertions(+)

@@ -1163,6 +1163,13 @@ static void parse_ddi_port(struct drm_i9
 	is_hdmi = is_dvi && (child->common.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
 	is_edp = is_dp && (child->common.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);
 
+	if (port == PORT_A && is_dvi) {
+		DRM_DEBUG_KMS("VBT claims port A supports DVI%s, ignoring\n",
+			      is_hdmi ? "/HDMI" : "");
+		is_dvi = false;
+		is_hdmi = false;
+	}
+
 	info->supports_dvi = is_dvi;
 	info->supports_hdmi = is_hdmi;
 	info->supports_dp = is_dp;

Patches currently in stable-queue which might be from [email protected] are

queue-4.13/drm-i915-always-update-eld-connector-type-after-get-modes.patch queue-4.13/drm-i915-bios-ignore-hdmi-on-port-a.patch