drm/radeon: add header comment for clarification to vce_v2_0_enable_mgcg()

Add function header comment to make it clear that local variable sw_cg
is used for debugging and it should not be removed.

Addresses-Coverity-ID: 1198635
Cc: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Gustavo A. R. Silva 2017-06-29 12:38:37 -05:00 committed by Alex Deucher
parent ccfee95c6e
commit 0ed279877d

View File

@ -104,6 +104,10 @@ static void vce_v2_0_disable_cg(struct radeon_device *rdev)
WREG32(VCE_CGTT_CLK_OVERRIDE, 7);
}
/*
* Local variable sw_cg is used for debugging purposes, in case we
* ran into problems with dynamic clock gating. Don't remove it.
*/
void vce_v2_0_enable_mgcg(struct radeon_device *rdev, bool enable)
{
bool sw_cg = false;