From: Imre Deak Date: Wed, 30 Oct 2024 19:23:10 +0000 (+0200) Subject: drm/i915/adlp+/dp_mst: Align slave transcoder enabling with spec wrt. DDI function X-Git-Tag: v6.14-rc1~174^2~12^2~159 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=734148a1d8d1ff00b1f31a44f20bf013f820e8e0;p=thirdparty%2Fkernel%2Flinux.git drm/i915/adlp+/dp_mst: Align slave transcoder enabling with spec wrt. DDI function On ADLP+ during modeset enabling configure the DDI function without enabling it for MST slave transcoders before programming the data and link M/N values. The DDI function gets enabled separately later in the transcoder enabling sequence. Align the code with the spec based on the above. v2: Move this patch earlier in the series, addressing the DP2 config fixes for all ADLP+ platforms later. Bspec: 55424, 54128, 65448, 68849 Reviewed-by: Luca Coelho Signed-off-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20241030192313.4030617-3-imre.deak@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index bd5a5956123a7..13449c85162d2 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -1224,7 +1224,7 @@ static void intel_mst_pre_enable_dp(struct intel_atomic_state *state, if (DISPLAY_VER(dev_priv) < 12 || !first_mst_stream) intel_ddi_enable_transcoder_clock(encoder, pipe_config); - if (DISPLAY_VER(dev_priv) >= 30 && !first_mst_stream) + if (DISPLAY_VER(dev_priv) >= 13 && !first_mst_stream) intel_ddi_config_transcoder_func(encoder, pipe_config); intel_dsc_dp_pps_write(&dig_port->base, pipe_config);