[PATCH stable 4.4] Revert "drm/radeon/ci: disable mclk switching for high refresh rates (v2)"

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This reverts commit 0157e2a8a71978c58a7d6cfb3616ab17d9726631.

The reverted commit was backported and applied twice on the stable branch:
- First as commit 15de2e4c90b7 ("drm/radeon/ci: disable mclk switching for
high refresh rates (v2)")
- Then as commit 0157e2a8a719 ("drm/radeon/ci: disable mclk switching for
high refresh rates (v2)")

Fixes: 0157e2a8a719 ("drm/radeon/ci: disable mclk switching for high refresh rates (v2)")
Signed-off-by: Guillaume Bertholon <guillaume.bertholon@xxxxxx>

---
 drivers/gpu/drm/radeon/ci_dpm.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index 8e1bf9e..c8baa06 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -782,12 +782,6 @@ bool ci_dpm_vblank_too_short(struct radeon_device *rdev)
 	if (r600_dpm_get_vrefresh(rdev) > 120)
 		return true;

-	/* disable mclk switching if the refresh is >120Hz, even if the
-        * blanking period would allow it
-        */
-	if (r600_dpm_get_vrefresh(rdev) > 120)
-		return true;
-
 	if (vblank_time < switch_limit)
 		return true;
 	else
--
2.7.4




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