WCL supports a maximum of HBR3 8.1 Gbps for both eDP/DP. Limit the max source rate to HBR3 for WCL.
Bspec:74286 Signed-off-by: Ankit Nautiyal <[email protected]> --- drivers/gpu/drm/i915/display/intel_dp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 0ec82fcbcf48..0d56504e1715 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -593,7 +593,10 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp) source_rates = mtl_rates; size = ARRAY_SIZE(mtl_rates); } - max_rate = mtl_max_source_rate(intel_dp); + if (display->platform.pantherlake_wildcatlake) + max_rate = 810000; + else + max_rate = mtl_max_source_rate(intel_dp); } else if (DISPLAY_VER(display) >= 11) { source_rates = icl_rates; size = ARRAY_SIZE(icl_rates); -- 2.45.2
