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authorTom St Denis <tom.stdenis@amd.com>2015-12-15 13:01:49 -0500
committerAlex Deucher <alexander.deucher@amd.com>2016-01-04 17:21:03 -0500
commit9e4e1ae82f2479a32bee61132206367a710e961e (patch)
tree87158cb72e69300fb171acf64944a6ccb39eb815 /drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
parent691ca86a3a15a9c5054edb3c517a1aeb40e9fadc (diff)
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/dce_v11_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/dce_v11_0.c8
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;
}