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drm/i915: reenable gmbus on gen3+ again

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With the rework to merge the bit-banging fallback into the gmbus
i2c adapter we've gotten rid of the deadlock possibility that
originally lead to the disabling of this code.

This reverts the revert

commit 826c7e4147
Author: Jean Delvare <khali@linux-fr.org>
Date:   Sat Jun 4 19:34:56 2011 +0000

    Revert "drm/i915: Enable GMBUS for post-gen2 chipsets"

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=35572
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-02-14 22:37:25 +01:00
parent f6f808c8e1
commit c3dfefa0a6
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_i2c.c
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@ -390,7 +390,7 @@ int intel_setup_gmbus(struct drm_device *dev)
bus->has_gpio = intel_gpio_setup(bus, i);
/* XXX force bit banging until GMBUS is fully debugged */
if (bus->has_gpio)
if (bus->has_gpio && IS_GEN2(dev))
bus->force_bit = true;
}