X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fradeon%2Fradeon_kms.c;h=4bf423ca4c1230bf32506ad330762041b3762719;hb=f5a8020903932624cf020dc72455a10a3e005087;hp=8fbbe1c6ebbda854f7bf9dc9f76ae1c4eefdafc5;hpb=188e213dbc5758bbfb62f7ce0367c5c8de057f02;p=profile%2Fivi%2Fkernel-x86-ivi.git

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 8fbbe1c..4bf423c 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -277,6 +277,27 @@ void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
 	radeon_irq_set(rdev);
 }
 
+int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
+				    int *max_error,
+				    struct timeval *vblank_time,
+				    unsigned flags)
+{
+	struct drm_crtc *drmcrtc;
+	struct radeon_device *rdev = dev->dev_private;
+
+	if (crtc < 0 || crtc >= dev->num_crtcs) {
+		DRM_ERROR("Invalid crtc %d\n", crtc);
+		return -EINVAL;
+	}
+
+	/* Get associated drm_crtc: */
+	drmcrtc = &rdev->mode_info.crtcs[crtc]->base;
+
+	/* Helper routine in DRM core does all the work: */
+	return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc, max_error,
+						     vblank_time, flags,
+						     drmcrtc);
+}
 
 /*
  * IOCTL.