From: Keith Packard Date: Tue, 20 Sep 2011 17:12:44 +0000 (-0700) Subject: drm/i915: Shut down PCH interrupts during irq_uninstall X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=192aac1f19e7a2c69fe486b863c914aabd7acc69;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git 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 --- diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index c22823bbf9f0..adeab2a9f1fb 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)