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drm/i915/bigjoiner: Avoid dsc_compute_config for uncompressed bigjoiner

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For uncompressed big joiner DSC engine will not be used so will avoid
compute config of DSC.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Clinton Taylor <Clinton.A.Taylor@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210514153711.2359617-15-matthew.d.roper@intel.com
This commit is contained in:
Animesh Manna 2021-05-14 08:37:06 -07:00 committed by Matt Roper
parent ca844ea7e1
commit e6f9bb62fb
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/i915/display/intel_dp.c
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@ -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)