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authorGustavo A. R. Silva <garsilva@embeddedor.com>2017-06-29 20:38:37 +0300
committerAlex Deucher <alexander.deucher@amd.com>2017-07-14 18:05:55 +0300
commit0ed279877ddf7ae8e5acd9fe4d464ceba98f37cd (patch)
tree05c8fc99c2f134aa9a90d11c2ea75765c2ba921b /drivers/gpu/drm/radeon/vce_v2_0.c
parentccfee95c6e6e9614a7c5f1191902de7927b6af2f (diff)
downloadlinux-0ed279877ddf7ae8e5acd9fe4d464ceba98f37cd.tar.xz
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/vce_v2_0.c')
-rw-r--r--drivers/gpu/drm/radeon/vce_v2_0.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/vce_v2_0.c b/drivers/gpu/drm/radeon/vce_v2_0.c
index fce214482e72..b0a43b68776d 100644
--- a/drivers/gpu/drm/radeon/vce_v2_0.c
+++ b/drivers/gpu/drm/radeon/vce_v2_0.c
@@ -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;