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drm/i915/spt+: Don't reset invalid AUX channel interrupt bits in SDEIMR

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The SDE interrupt bits 25, 26 and 27 are either reserved or meant for
DDI E hotplug in SPT+. These bits are meant for AUX channels only in LPT
and CPT, so add the appropriate checks.

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170909004255.14827-1-dhinakaran.pandiyan@intel.com
This commit is contained in:
Dhinakaran Pandiyan
2017-09-08 17:42:55 -07:00
committed by Rodrigo Vivi
parent 61843f0e62
commit 4ebc65092c
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/i915_irq.c
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@@ -3241,8 +3241,10 @@ static void ibx_irq_postinstall(struct drm_device *dev)
if (HAS_PCH_IBX(dev_priv))
mask = SDE_GMBUS | SDE_AUX_MASK | SDE_POISON;
else
else if (HAS_PCH_CPT(dev_priv) || HAS_PCH_LPT(dev_priv))
mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT;
else
mask = SDE_GMBUS_CPT;
gen5_assert_iir_is_zero(dev_priv, SDEIIR);
I915_WRITE(SDEIMR, ~mask);