amdgpu/dce11: Remove division from dce_v11_0_vblank_wait()

Mimics odd behaviour where (i++ % 100 == 0) is true in the first iteration of each loop...

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index 8701661a8868..80be62a0b99b 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -211,7 +211,7 @@ static bool dce_v11_0_is_counter_moving(struct amdgpu_device *adev, int crtc)
  */
 static void dce_v11_0_vblank_wait(struct amdgpu_device *adev, int crtc)
 {
-        unsigned i = 0;
+        unsigned i = 100;
 
         if (crtc >= adev->mode_info.num_crtc)
                 return;
@@ -223,14 +223,16 @@ static void dce_v11_0_vblank_wait(struct amdgpu_device *adev, int crtc)
          * wait for another frame.
          */
         while (dce_v11_0_is_in_vblank(adev, crtc)) {
-                if (i++ % 100 == 0) {
+                if (i++ == 100) {
+                        i = 0;
                         if (!dce_v11_0_is_counter_moving(adev, crtc))
                                 break;
                 }
         }
 
         while (!dce_v11_0_is_in_vblank(adev, crtc)) {
-                if (i++ % 100 == 0) {
+                if (i++ == 100) {
+                        i = 0;
                         if (!dce_v11_0_is_counter_moving(adev, crtc))
                                 break;
                 }