drm/radeon/dpm: implement vblank_too_short callback for 7xx

[karo-tx-linux.git] / drivers / gpu / drm / radeon / rv770_dpm.c

diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c
index 4de50c8118799f7ec6aa796bd548ad00adc33b59..d914e04ea39a19e3f2013dafdac2fddd3ec18837 100644 (file)
--- a/drivers/gpu/drm/radeon/rv770_dpm.c
+++ b/drivers/gpu/drm/radeon/rv770_dpm.c
@@ -2508,3 +2508,14 @@ u32 rv770_dpm_get_mclk(struct radeon_device *rdev, bool low)
        else
                return requested_state->high.mclk;
 }
+
+bool rv770_dpm_vblank_too_short(struct radeon_device *rdev)
+{
+       u32 vblank_time = r600_dpm_get_vblank_time(rdev);
+
+       if (vblank_time < 300)
+               return true;
+       else
+               return false;
+
+}