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drm/i915: Kill leftover GTIIR writes from valleyview_irq_preinstall() 

There are two leftover GTIIR writes in valleyview_irq_preinstall().
Looks like the were originally left behind by:

 commit d18ea1b58a
 Author: Daniel Vetter <daniel.vetter@ffwll.ch>
 Date:   Fri Jul 12 22:43:25 2013 +0200

    drm/i915: unify PM interrupt preinstall sequence

and then the GTIIR reset was added back here:

 commit f86f3fb005
 Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
 Date:   Tue Apr 1 15:37:14 2014 -0300

    drm/i915: properly clear IIR at irq_uninstall on Gen5+

so we can kill the leftovers from the vlv code.

Cc: Paulo Zanoni <przanoni@gmail.com>
Suggested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-10-31 11:53:06 +02:00 committed by Daniel Vetter
parent 9b2e8c9411
commit 5eba929d1b
1 changed files with 0 additions and 4 deletions
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4
drivers/gpu/drm/i915/i915_irq.c
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@ -3128,10 +3128,6 @@ static void valleyview_irq_preinstall(struct drm_device *dev)
I915_WRITE(RING_IMR(GEN6_BSD_RING_BASE), 0);
I915_WRITE(RING_IMR(BLT_RING_BASE), 0);
/* and GT */
I915_WRITE(GTIIR, I915_READ(GTIIR));
I915_WRITE(GTIIR, I915_READ(GTIIR));
gen5_gt_irq_reset(dev);
I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK);