On Fri, Oct 25, 2024 at 07:02:59PM +0300, Imre Deak wrote: > At least the i-tec USB-C Nano 2x Display Docking Station (containing a > Synaptics MST branch device) requires the driver to update the source > OUI DPCD registers to expose its DSC capability. Accordingly update the > OUI for all sink types (besides eDP where this has been done already). > > v2: Rebased on latest patch version. > > Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/11776 > Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx> Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_dp.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c > index 916301aa9f6b6..24daf5f973770 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -3407,9 +3407,6 @@ intel_dp_init_source_oui(struct intel_dp *intel_dp) > u8 oui[] = { 0x00, 0xaa, 0x01 }; > u8 buf[3] = {}; > > - if (!intel_dp_is_edp(intel_dp)) > - return; > - > if (READ_ONCE(intel_dp->oui_valid)) > return; > > @@ -6133,6 +6130,8 @@ intel_dp_hpd_pulse(struct intel_digital_port *dig_port, bool long_hpd) > > if (long_hpd) { > intel_dp->reset_link_params = true; > + intel_dp_invalidate_source_oui(intel_dp); > + > return IRQ_NONE; > } > > -- > 2.44.2 -- Ville Syrjälä Intel
