drm/i915: Add the missing clonemask for display port on Ironlake

Add the missing clonemask for display port on Ironlake.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e0e835e..3b584d3 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1306,11 +1306,11 @@ intel_dp_init(struct drm_device *dev, int output_reg)
        else
                intel_output->type = INTEL_OUTPUT_DISPLAYPORT;
 
-       if (output_reg == DP_B)
+       if (output_reg == DP_B || output_reg == PCH_DP_B)
                intel_output->clone_mask = (1 << INTEL_DP_B_CLONE_BIT);
-       else if (output_reg == DP_C)
+       else if (output_reg == DP_C || output_reg == PCH_DP_C)
                intel_output->clone_mask = (1 << INTEL_DP_C_CLONE_BIT);
-       else if (output_reg == DP_D)
+       else if (output_reg == DP_D || output_reg == PCH_DP_D)
                intel_output->clone_mask = (1 << INTEL_DP_D_CLONE_BIT);
 
        if (IS_eDP(intel_output)) {