drm/i915/tc: fix the reset of ln0

Setting ln0 similar to ln1

Fixes: 3b51be4e4061b ("drm/i915/tc: Update DP_MODE programming")
Cc: <stable@vger.kernel.org> # v5.5+
Signed-off-by: Khaled Almahallawy <khaled.almahallawy@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200608204537.28468-1-khaled.almahallawy@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 96eaa4b39c687150a1dace767152124e76df7827..1c0c369573e7f0db9a207917ce175fa7c26e61ab 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3025,7 +3025,7 @@ icl_program_mg_dp_mode(struct intel_digital_port *intel_dig_port,
                ln1 = intel_de_read(dev_priv, MG_DP_MODE(1, tc_port));
        }
 
-       ln0 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X1_MODE);
+       ln0 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE);
        ln1 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE);
 
        /* DPPATC */