From b82a682d3234115dda6c8d05c31bafe98a66c885 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Thu, 1 Jun 2017 17:36:18 +0300
Subject: [PATCH] drm/i915: Drop pipe A quirk for Thinkapd T60
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Git-commit: b82a682d3234115dda6c8d05c31bafe98a66c885
Patch-mainline: v4.13-rc1
References: FATE#322643 bsc#1055900

The pipe A force quirk shouldn't needed except on 830. So let's nuke it
for the IBM Thinkpad T60 945 machines. This quirk pre-dates
KMS so it's usefulness is doubtful at best now.

The original bug report [1] describes the symptoms as "system hang on
closing T60 panel lid", and we already dropped a similar quirk for
another 945 machine in
commit 736a69ca8c99 ("drm/i915: Drop PIPE-A quirk for 945GSE HP Mini")
so I'm hopeful we can drop this one as well.

The quirk was added into xf86-video-intel in
commit 08903abe4dc0 ("Add pipe a force enable quirk for Lenovo T60")

[1] https://bugs.freedesktop.org/show_bug.cgi?id=16494

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-7-ville.syrjala@linux.intel.com
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/intel_display.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14826,9 +14826,6 @@ static const struct intel_dmi_quirk inte
 };
 
 static struct intel_quirk intel_quirks[] = {
-	/* ThinkPad T60 needs pipe A force quirk (bug #16494) */
-	{ 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
-
 	/* 830 needs to leave pipe A & dpll A up */
 	{ 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },