drm/i915/display: For MTL+ platforms skip mg dp programming

For MTL+ platforms we use PICA chips for Type-C support and
hence mg programming is not needed.

Fixes issue with drm warn of TC port not being in legacy mode.

Cc: stable@vger.kernel.org
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240625111840.597574-1-mika.kahola@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index bb13a3ca8c7c975d2afbadc2ed8fba827349b58f..6672fc162c4f6bce06a72774011c98671d86d7dc 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -2096,6 +2096,9 @@ icl_program_mg_dp_mode(struct intel_digital_port *dig_port,
        u32 ln0, ln1, pin_assignment;
        u8 width;
 
+       if (DISPLAY_VER(dev_priv) >= 14)
+               return;
+
        if (!intel_encoder_is_tc(&dig_port->base) ||
            intel_tc_port_in_tbt_alt_mode(dig_port))
                return;