From: Animesh Manna <animesh.manna@xxxxxxxxx>
For uncompressed big joiner DSC engine will not be used so will avoid
compute config of DSC.
Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx>
Signed-off-by: Animesh Manna <animesh.manna@xxxxxxxxx>
Signed-off-by: Clinton Taylor <Clinton.A.Taylor@xxxxxxxxx>
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
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 92d4c5ab32d7..a1a472ffef6d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1371,9 +1371,13 @@ 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)
--
2.25.4
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