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Commit 4ebc6509 authored by Dhinakaran Pandiyan's avatar Dhinakaran Pandiyan Committed by Rodrigo Vivi
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drm/i915/spt+: Don't reset invalid AUX channel interrupt bits in SDEIMR 



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: default avatarDhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170909004255.14827-1-dhinakaran.pandiyan@intel.com
parent 61843f0e

drivers/gpu/drm/i915/i915_irq.c

+3 −1
Original line number Diff line number Diff line
@@ -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);