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path: root/drivers/gpu/drm/i915/i915_irq.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 7ebc84c2881e..6c89f2ff2495 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -565,6 +565,27 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);
I915_READ(PORT_HOTPLUG_STAT);
+
+ /* EOS interrupts occurs */
+ if (IS_IGD(dev) &&
+ (hotplug_status & CRT_EOS_INT_STATUS)) {
+ u32 temp;
+
+ DRM_DEBUG("EOS interrupt occurs\n");
+ /* status is already cleared */
+ temp = I915_READ(ADPA);
+ temp &= ~ADPA_DAC_ENABLE;
+ I915_WRITE(ADPA, temp);
+
+ temp = I915_READ(PORT_HOTPLUG_EN);
+ temp &= ~CRT_EOS_INT_EN;
+ I915_WRITE(PORT_HOTPLUG_EN, temp);
+
+ temp = I915_READ(PORT_HOTPLUG_STAT);
+ if (temp & CRT_EOS_INT_STATUS)
+ I915_WRITE(PORT_HOTPLUG_STAT,
+ CRT_EOS_INT_STATUS);
+ }
}
I915_WRITE(IIR, iir);