commit 354ef928a0e67166249c0136cdba21fdfef31702
author Nils Wallménius <nils.wallmenius@gmail.com> Thu May 05 09:07:47 2016 +0200
committer Alex Deucher <alexander.deucher@amd.com> Wed May 11 12:31:23 2016 -0400
tree 4e336d646b7a8e2d02e48ffb795651f676b270e1
parent 9887e425f91b063d68ee1fbec76dea15d6a82085

drm/amdgpu: Simplify calculation in *get_sleep_divider_id_from_clock

a / (1 << b) is equivalent to a >> b for unsigned values

Signed-off-by: Nils Wallménius <nils.wallmenius@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/ci_dpm.c

diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
index 4d50c43..b2c2f37 100644
--- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
@@ -2560,7 +2560,7 @@
 		return 0;
 
 	for (i = CISLAND_MAX_DEEPSLEEP_DIVIDER_ID;  ; i--) {
-		tmp = sclk / (1 << i);
+		tmp = sclk >> i;
 		if (tmp >= min || i == 0)
 			break;
 	}