[x86] i915: Revert "drm/i915: Enable GMBUS for post-gen2 chipsets" (Closes: #627575)

svn path=/dists/sid/linux-2.6/; revision=17712

debian/changelog

@@ -1,3 +1,11 @@
+linux-2.6 (2.6.39-3) UNRELEASED; urgency=low
+
+  [ Ben Hutchings ]
+  * [x86] i915: Revert "drm/i915: Enable GMBUS for post-gen2 chipsets"
+    (Closes: #627575)
+
+ -- Ben Hutchings <ben@decadent.org.uk>  Tue, 21 Jun 2011 05:27:43 +0100
+
 linux-2.6 (2.6.39-2) unstable; urgency=low
 
   [ Ben Hutchings ]

debian/patches/bugfix/x86/Revert-drm-i915-Enable-GMBUS-for-post-gen2-chipsets.patch

@@ -0,0 +1,37 @@
+From: Jean Delvare <khali@linux-fr.org>
+Date: Sat, 4 Jun 2011 19:34:56 +0000
+Subject: [PATCH] Revert "drm/i915: Enable GMBUS for post-gen2 chipsets"
+
+commit 826c7e4147f902737b281e8a5a7d7aa33fd63316 upstream.
+
+Revert commit 8f9a3f9b63b8cd3f03be9dc53533f90bd4120e5f. This fixes a
+hang when loading the eeprom driver (see bug #35572.) GMBUS will be
+re-enabled later, differently.
+
+Signed-off-by: Jean Delvare <khali@linux-fr.org>
+Reported-by: Marek Otahal <markotahal@gmail.com>
+Tested-by: Yermandu Patapitafious <yermandu.dev@gmail.com>
+Tested-by: Andrew Lutomirski <luto@mit.edu>
+Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
+Signed-off-by: Dave Airlie <airlied@redhat.com>
+---
+ drivers/gpu/drm/i915/intel_i2c.c |    3 +--
+ 1 files changed, 1 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
+index d3b903b..d98cee6 100644
+--- a/drivers/gpu/drm/i915/intel_i2c.c
++++ b/drivers/gpu/drm/i915/intel_i2c.c
+@@ -401,8 +401,7 @@ int intel_setup_gmbus(struct drm_device *dev)
+ 		bus->reg0 = i | GMBUS_RATE_100KHZ;
+ 
+ 		/* XXX force bit banging until GMBUS is fully debugged */
+-		if (IS_GEN2(dev))
+-			bus->force_bit = intel_gpio_create(dev_priv, i);
++		bus->force_bit = intel_gpio_create(dev_priv, i);
+ 	}
+ 
+ 	intel_i2c_reset(dev_priv->dev);
+-- 
+1.7.5.4
+

debian/patches/series/3

@@ -0,0 +1 @@
++ bugfix/x86/Revert-drm-i915-Enable-GMBUS-for-post-gen2-chipsets.patch