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drm/i915/adl_p: enable MSO on pipe B

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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@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210526082903.26395-1-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2021-05-26 11:29:03 +03:00
parent aa85beeace
commit 7bc188cc2c
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/i915/display/intel_ddi.c
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@ -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