The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y git checkout FETCH_HEAD git cherry-pick -x f72383371e8c5d1d108532d7e395ff2c277233e5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024070843-concrete-lather-a4a3@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^..
Possible dependencies:
f72383371e8c ("drm/i915/display: For MTL+ platforms skip mg dp programming") 7fcf755896a3 ("drm/i915/display: use intel_encoder_is/to_* functions") 0a099232d254 ("drm/i915/snps: pass encoder to intel_snps_phy_update_psr_power_state()") 684a37a6ffa9 ("drm/i915/ddi: pass encoder to intel_wait_ddi_buf_active()") 65ea19a698f2 ("drm/i915/hdmi: convert *_port_to_ddc_pin() to *_encoder_to_ddc_pin()") 6a8c66bf0e56 ("drm/i915: Don't explode when the dig port we don't have an AUX CH") d5c7854b50e6 ("drm/i915/xe2lpd: Move D2D enable/disable") 2e4b90fbe755 ("drm/i915: Filter out glitches on HPD lines during hotplug detection") 31a5b6ed88c7 ("drm/i915/display: Unify VSC SPD preparation") 00076671a648 ("drm/i915/display: Move colorimetry_support from intel_psr to intel_dp") e11300a1d8e3 ("drm/i915/display: Remove intel_crtc_state->psr_vsc") 561322c3bc14 ("drm/i915/display: Skip state verification with TBT-ALT mode") 7966a93a27cf ("drm/i915: Push audio enable/disable further out") 59be90248b42 ("drm/i915/mtl: C20 state verification") 3257e55d3ea7 ("drm/i915/panelreplay: enable/disable panel replay") b8cf5b5d266e ("drm/i915/panelreplay: Initializaton and compute config for panel replay") dd8f2298e34b ("drm/i915/psr: Move psr specific dpcd init into own function") 36f579ffc692 ("drm/i915/dp_mst: Improve BW sharing between MST streams") e37137380931 ("drm/i915/dp_mst: Force modeset CRTC if DSC toggling requires it") b2608c6b3212 ("drm/i915/dp_mst: Enable MST DSC decompression for all streams")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From f72383371e8c5d1d108532d7e395ff2c277233e5 Mon Sep 17 00:00:00 2001 From: Imre Deak imre.deak@intel.com Date: Tue, 25 Jun 2024 14:18:40 +0300 Subject: [PATCH] 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.k... (cherry picked from commit aaf9dc86bd806458f848c39057d59e5aa652a399) Signed-off-by: Jani Nikula jani.nikula@intel.com
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 3c3fc53376ce..6bff169fa8d4 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -2088,6 +2088,9 @@ 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;