From e6f9bb62fbbf2cf0336c954033e08837bf7aaf8d Mon Sep 17 00:00:00 2001 From: Animesh Manna Date: Fri, 14 May 2021 08:37:06 -0700 Subject: [PATCH] drm/i915/bigjoiner: Avoid dsc_compute_config for uncompressed bigjoiner For uncompressed big joiner DSC engine will not be used so will avoid compute config of DSC. Cc: Manasi Navare Signed-off-by: Animesh Manna Signed-off-by: Clinton Taylor Signed-off-by: Matt Roper Reviewed-by: Manasi Navare Link: https://patchwork.freedesktop.org/patch/msgid/20210514153711.2359617-15-matthew.d.roper@intel.com --- drivers/gpu/drm/i915/display/intel_dp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 9db2c96c8d42..5694bc716ade 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1370,9 +1370,13 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, */ ret = intel_dp_compute_link_config_wide(intel_dp, pipe_config, &limits); - /* enable compression if the mode doesn't fit available BW */ + /* + * Pipe joiner needs compression upto display12 due to BW limitation. DG2 + * onwards pipe joiner can be enabled without compression. + */ drm_dbg_kms(&i915->drm, "Force DSC en = %d\n", intel_dp->force_dsc_en); - if (ret || intel_dp->force_dsc_en || pipe_config->bigjoiner) { + if (ret || intel_dp->force_dsc_en || (DISPLAY_VER(i915) < 13 && + pipe_config->bigjoiner)) { ret = intel_dp_dsc_compute_config(intel_dp, pipe_config, conn_state, &limits); if (ret < 0) -- 2.11.0