1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 807b89b4933..891935271d3 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -518,6 +518,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
         int encoder_mode = 0;
         u32 dp_clock = mode->clock;
         int bpc = 8;
+        bool is_duallink = false;
 
         /* reset the pll flags */
         pll->flags = 0;
@@ -552,6 +553,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
                         if (connector && connector->display_info.bpc)
                                 bpc = connector->display_info.bpc;
                         encoder_mode = atombios_get_encoder_mode(encoder);
+                        is_duallink = radeon_dig_monitor_is_duallink(encoder, mode->clock);
                         if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
                             (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) {
                                 if (connector) {
@@ -647,7 +649,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
                                         if (dig->coherent_mode)
                                                 args.v3.sInput.ucDispPllConfig |=
                                                         DISPPLL_CONFIG_COHERENT_MODE;
-                                        if (mode->clock > 165000)
+                                        if (is_duallink)
                                                 args.v3.sInput.ucDispPllConfig |=
                                                         DISPPLL_CONFIG_DUAL_LINK;
                                 }