From: Michel Dänzer <michel@tungstengraphics.com>
Date: Fri, 15 Jun 2007 08:21:44 +0000 (+0200)
Subject: i915: Fix tests for vblank interrupts being enabled on CRTC by X server.
X-Git-Tag: submit/1.0/20121108.012404~1046
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=914a810a82af6f82e69a94448570772f20a94953;p=profile%2Fivi%2Flibdrm.git

i915: Fix tests for vblank interrupts being enabled on CRTC by X server.
---

diff --git a/shared-core/i915_irq.c b/shared-core/i915_irq.c
index ad2cf9c..9861af9 100644
--- a/shared-core/i915_irq.c
+++ b/shared-core/i915_irq.c
@@ -484,7 +484,7 @@ int i915_enable_vblank(drm_device_t *dev, int crtc)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-	if (dev_priv->vblank_pipe != (1 << crtc))
+	if (!(dev_priv->vblank_pipe & (1 << crtc)))
 		return -EINVAL;
 	
 	switch (crtc) {
@@ -509,7 +509,7 @@ void i915_disable_vblank(drm_device_t *dev, int crtc)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-	if (crtc > dev_priv->vblank_pipe)
+	if (!(dev_priv->vblank_pipe & (1 << crtc)))
 		return;
 	
 	switch (crtc) {