From 91e3738ebc6d858e784090382e02afeae5a93b08 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@linux.ie>
Date: Sat, 18 Feb 2006 15:17:04 +1100
Subject: [PATCH] drm: fixup i915 interrupt on X server exit
Fixes: IRQ disabled (i915?) when switchig between gnome themes (gnome-theme-manager)
Signed-off-by: Dave Airlie <airlied@linux.ie>
---
drivers/char/drm/i915_irq.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c
index a1381c61aa63..d3879ac9970f 100644
--- a/drivers/char/drm/i915_irq.c
+++ b/drivers/char/drm/i915_irq.c
@@ -202,10 +202,15 @@ void i915_driver_irq_postinstall(drm_device_t * dev)
void i915_driver_irq_uninstall(drm_device_t * dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ u16 temp;
+
if (!dev_priv)
return;
I915_WRITE16(I915REG_HWSTAM, 0xffff);
I915_WRITE16(I915REG_INT_MASK_R, 0xffff);
I915_WRITE16(I915REG_INT_ENABLE_R, 0x0);
+
+ temp = I915_READ16(I915REG_INT_IDENTITY_R);
+ I915_WRITE16(I915REG_INT_IDENTITY_R, temp);
}