On ADL-P, it's possible to enable the stream splitter on pipe B in
addition to pipe A.
Bspec: 50174
Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 3d8918674153..4d6f1a206f56 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4729,9 +4729,12 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
dig_port->hpd_pulse = intel_dp_hpd_pulse;
- /* Splitter enable for eDP MSO is supported for pipe A only. */
- if (dig_port->dp.mso_link_count)
+ /* Splitter enable for eDP MSO is limited to certain pipes. */
+ if (dig_port->dp.mso_link_count) {
encoder->pipe_mask = BIT(PIPE_A);
+ if (IS_ALDERLAKE_P(dev_priv))
+ encoder->pipe_mask |= BIT(PIPE_B);
+ }
}
/* In theory we don't need the encoder->type check, but leave it just in
--
2.20.1
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