From 192aac1f19e7a2c69fe486b863c914aabd7acc69 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Tue, 20 Sep 2011 10:12:44 -0700 Subject: [PATCH] drm/i915: Shut down PCH interrupts during irq_uninstall This masks out all interrupts and ack's any pending ones at IRQ uninstall time to make sure we don't receive any unexpected interrupts later on. Signed-off-by: Keith Packard Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_irq.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index c22823bbf9f..adeab2a9f1f 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2044,6 +2044,10 @@ static void ironlake_irq_uninstall(struct drm_device *dev) I915_WRITE(GTIMR, 0xffffffff); I915_WRITE(GTIER, 0x0); I915_WRITE(GTIIR, I915_READ(GTIIR)); + + I915_WRITE(SDEIMR, 0xffffffff); + I915_WRITE(SDEIER, 0x0); + I915_WRITE(SDEIIR, I915_READ(SDEIIR)); } static void i915_driver_irq_uninstall(struct drm_device * dev) -- 2.41.0