From 5a1527ed8b431055fca51d67a6dde064ec2e76f2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 5 Apr 2024 00:34:33 +0300 Subject: [PATCH] drm/i915/mst: Check intel_dp_joiner_needs_dsc() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit intel_dp_mst_compute_config() is missing the "does the joiner need DSC?" check despite claiming to have a lot of other joiner/dsc stuff in there (albeit disabled). Replicate the logic from the SST side. TODO: refactor all this duplicated code! Tested-by: Vidya Srinivas Reviewed-by: Uma Shankar Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240404213441.17637-10-ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/display/intel_dp_mst.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index da9585c8c751..a665a165a831 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -532,7 +532,7 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, const struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode; struct link_config_limits limits; - bool dsc_needed; + bool dsc_needed, joiner_needs_dsc; int ret = 0; if (pipe_config->fec_enable && @@ -546,7 +546,9 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; pipe_config->has_pch_encoder = false; - dsc_needed = intel_dp->force_dsc_en || + joiner_needs_dsc = intel_dp_joiner_needs_dsc(dev_priv, pipe_config->bigjoiner_pipes); + + dsc_needed = joiner_needs_dsc || intel_dp->force_dsc_en || !intel_dp_mst_compute_config_limits(intel_dp, connector, pipe_config, @@ -566,8 +568,8 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, /* enable compression if the mode doesn't fit available BW */ if (dsc_needed) { - drm_dbg_kms(&dev_priv->drm, "Try DSC (fallback=%s, force=%s)\n", - str_yes_no(ret), + drm_dbg_kms(&dev_priv->drm, "Try DSC (fallback=%s, joiner=%s, force=%s)\n", + str_yes_no(ret), str_yes_no(joiner_needs_dsc), str_yes_no(intel_dp->force_dsc_en)); if (!intel_dp_mst_dsc_source_support(pipe_config))