Commit 08a57300 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915/mst: Always write CHICKEN_TRANS 



Since we're asked to disable FECSTALL_DIS_DPTSTREAM_DPTTG when
the transcoder is disabled it seems prudent to also clear it
when enabliing the transcoder w/o FEC, just in case
someone else left it enabled by mistake.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231018154123.5479-5-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 817cb16e

drivers/gpu/drm/i915/display/intel_dp_mst.c

+8 −6
Original line number Diff line number Diff line
@@ -817,12 +817,14 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state, 
	drm_dp_add_payload_part2(&intel_dp->mst_mgr, &state->base,

				 drm_atomic_get_mst_payload_state(mst_state, connector->port));



	if (DISPLAY_VER(dev_priv) >= 14 && pipe_config->fec_enable)

		intel_de_rmw(dev_priv, MTL_CHICKEN_TRANS(trans), 0,

			     FECSTALL_DIS_DPTSTREAM_DPTTG);

	else if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable)

		intel_de_rmw(dev_priv, CHICKEN_TRANS(trans), 0,

			     FECSTALL_DIS_DPTSTREAM_DPTTG);

	if (DISPLAY_VER(dev_priv) >= 14)

		intel_de_rmw(dev_priv, MTL_CHICKEN_TRANS(trans),

			     FECSTALL_DIS_DPTSTREAM_DPTTG,

			     pipe_config->fec_enable ? FECSTALL_DIS_DPTSTREAM_DPTTG : 0);

	else if (DISPLAY_VER(dev_priv) >= 12)

		intel_de_rmw(dev_priv, CHICKEN_TRANS(trans),

			     FECSTALL_DIS_DPTSTREAM_DPTTG,

			     pipe_config->fec_enable ? FECSTALL_DIS_DPTSTREAM_DPTTG : 0);



	intel_audio_sdp_split_update(pipe_config);