From 7bc188cc2c8c7b21bfa0782f0d22bbf245ce1f63 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Wed, 26 May 2021 11:29:03 +0300 Subject: [PATCH] drm/i915/adl_p: enable MSO on pipe B MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit On ADL-P, it's possible to enable the stream splitter on pipe B in addition to pipe A. Bspec: 50174 Cc: Uma Shankar Cc: Ville Syrjälä Reviewed-by: Ville Syrjälä Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20210526082903.26395-1-jani.nikula@intel.com --- 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