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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-18 06:19:50 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-18 06:19:50 +0200 |
| commit | 78af08d90b8f745044b1274430bc4bc6b2b27aca (patch) | |
| tree | 9e233eb5acf9974bf02de57a9d88c35f86629114 /drivers/gpu/drm/via/via_irq.c | |
| parent | Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/fyu/l... (diff) | |
| parent | drm: Move a dereference below a NULL test (diff) | |
| download | linux-78af08d90b8f745044b1274430bc4bc6b2b27aca.tar.xz linux-78af08d90b8f745044b1274430bc4bc6b2b27aca.zip | |
Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: Move a dereference below a NULL test
fb/intelfb: conflict with DRM_I915 and hide by default
drm/ttm: fix misplaced parentheses
drm/via: Fix vblank IRQ on VIA hardware.
drm: drm_gem, check kzalloc retval
drm: drm_debugfs, check kmalloc retval
drm/radeon: add some missing pci ids
Diffstat (limited to 'drivers/gpu/drm/via/via_irq.c')
| -rw-r--r-- | drivers/gpu/drm/via/via_irq.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c index c248c1d37268..5935b8842e86 100644 --- a/drivers/gpu/drm/via/via_irq.c +++ b/drivers/gpu/drm/via/via_irq.c @@ -183,7 +183,7 @@ int via_enable_vblank(struct drm_device *dev, int crtc) } status = VIA_READ(VIA_REG_INTERRUPT); - VIA_WRITE(VIA_REG_INTERRUPT, status & VIA_IRQ_VBLANK_ENABLE); + VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_VBLANK_ENABLE); VIA_WRITE8(0x83d4, 0x11); VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30); @@ -194,6 +194,10 @@ int via_enable_vblank(struct drm_device *dev, int crtc) void via_disable_vblank(struct drm_device *dev, int crtc) { drm_via_private_t *dev_priv = dev->dev_private; + u32 status; + + status = VIA_READ(VIA_REG_INTERRUPT); + VIA_WRITE(VIA_REG_INTERRUPT, status & ~VIA_IRQ_VBLANK_ENABLE); VIA_WRITE8(0x83d4, 0x11); VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30); |