korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-17 09:14:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

drm/i915: Shut down PCH interrupts during irq_uninstall

Browse Source 
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 <keithp@keithp.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Keith Packard 2011-09-20 10:12:44 -07:00
parent 7fe0b973fa
commit 192aac1f19
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/i915_irq.c
View File

@ -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)