From 1e21885cde3bde872a8dee0350983424baedb719 Mon Sep 17 00:00:00 2001
From: Chia-I Wu <olvaffe@gmail.com>
Date: Sat, 26 Mar 2011 15:39:24 +0800
Subject: gralloc: improve radeon sync issue

---
 src/gralloc/gralloc_kms.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/gralloc/gralloc_kms.c')

diff --git a/src/gralloc/gralloc_kms.c b/src/gralloc/gralloc_kms.c
index 2ed06f7701..a6b4e30052 100644
--- a/src/gralloc/gralloc_kms.c
+++ b/src/gralloc/gralloc_kms.c
@@ -85,8 +85,16 @@ drm_kms_page_flip(struct drm_module_t *drm, struct drm_bo_t *bo)
       }
    }
 
-   if (ret)
+   if (ret) {
       LOGE("failed to perform page flip");
+   }
+   else if (drm->mode_page_flip_blocking) {
+      /*
+       * TODO page flip with DRM_MODE_PAGE_FLIP_EVENT instead of waiting for
+       * next vblank
+       */
+      drm_kms_wait_vblank(drm, 1);
+   }
 
    return ret;
 }
-- 
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