From: Jani Nikula Date: Fri, 14 Jun 2024 14:23:11 +0000 (+0300) Subject: drm/i915/mso: using joiner is not possible with eDP MSO X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8b5a92ca24eb96bb71e2a55e352687487d87687f;p=users%2Fjedix%2Flinux-maple.git drm/i915/mso: using joiner is not possible with eDP MSO It's not possible to use the joiner at the same time with eDP MSO. When a panel needs MSO, it's not optional, so MSO trumps joiner. v3: Only change intel_dp_has_joiner(), leave debugfs alone (Ville) Fixes: bc71194e8897 ("drm/i915/edp: enable eDP MSO during link training") Cc: # v5.13+ Cc: Ville Syrjala Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1668 Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240614142311.589089-1-jani.nikula@intel.com Signed-off-by: Jani Nikula --- diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 53b26c354f38..3903f6ead6e6 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -465,6 +465,10 @@ bool intel_dp_has_joiner(struct intel_dp *intel_dp) struct intel_encoder *encoder = &intel_dig_port->base; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + /* eDP MSO is not compatible with joiner */ + if (intel_dp->mso_link_count) + return false; + return DISPLAY_VER(dev_priv) >= 12 || (DISPLAY_VER(dev_priv) == 11 && encoder->port != PORT_A);