drm/radeon: fix correctness of irq_enabled check for radeon.

[linux-2.6-omap-h63xx.git] / drivers / gpu / drm / radeon / radeon_irq.c

diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c
index 5079f7054a2f67aa712bcf6c89fa4e98cb1835b9..8289e16419a8d24566559223489037860809ec54 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_irq.c
+++ b/drivers/gpu/drm/radeon/radeon_irq.c
@@ -44,7 +44,8 @@ void radeon_irq_set_state(struct drm_device *dev, u32 mask, int state)
        else
                dev_priv->irq_enable_reg &= ~mask;
 
-       RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
+       if (dev->irq_enabled)
+               RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
 }
 
 static void r500_vbl_irq_set_state(struct drm_device *dev, u32 mask, int state)
@@ -56,7 +57,8 @@ static void r500_vbl_irq_set_state(struct drm_device *dev, u32 mask, int state)
        else
                dev_priv->r500_disp_irq_reg &= ~mask;
 
-       RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
+       if (dev->irq_enabled)
+               RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
 }
 
 int radeon_enable_vblank(struct drm_device *dev, int crtc)
@@ -337,15 +339,10 @@ int radeon_driver_irq_postinstall(struct drm_device *dev)
 {
        drm_radeon_private_t *dev_priv =
            (drm_radeon_private_t *) dev->dev_private;
-       int ret;
 
        atomic_set(&dev_priv->swi_emitted, 0);
        DRM_INIT_WAITQUEUE(&dev_priv->swi_queue);
 
-       ret = drm_vblank_init(dev, 2);
-       if (ret)
-               return ret;
-
        dev->max_vblank_count = 0x001fffff;
 
        radeon_irq_set_state(dev, RADEON_SW_INT_ENABLE, 1);
@@ -360,8 +357,6 @@ void radeon_driver_irq_uninstall(struct drm_device * dev)
        if (!dev_priv)
                return;
 
-       dev_priv->irq_enabled = 0;
-
        if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
                RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
        /* Disable *all* interrupts */