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[PATCH] [drm] Mark DDX as supporting modeset notify ioctls on the first call
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From: Keith P. <ke...@ke...> - 2008-11-03 07:38:31
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The initial mode setting from the 2D driver is done before drm_vblank_init
is called, which means that vblank_disable_allow isn't set. This prevents
the kernel from disabling vblank interrupts after they are first turned on.
Signed-off-by: Keith Packard <ke...@ke...>
---
drivers/gpu/drm/drm_irq.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 212a94f..61c2a46 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -448,6 +448,8 @@ int drm_modeset_ctl(struct drm_device *dev, void *data,
unsigned long irqflags;
int crtc, ret = 0;
+ dev->vblank_disable_allowed = 1;
+
/* If drm_vblank_init() hasn't been called yet, just no-op */
if (!dev->num_crtcs)
goto out;
@@ -475,7 +477,6 @@ int drm_modeset_ctl(struct drm_device *dev, void *data,
case _DRM_POST_MODESET:
if (dev->vblank_inmodeset[crtc]) {
spin_lock_irqsave(&dev->vbl_lock, irqflags);
- dev->vblank_disable_allowed = 1;
dev->vblank_inmodeset[crtc] = 0;
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
drm_vblank_put(dev, crtc);
--
1.5.6.5
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