From: Imre Deak Date: Fri, 25 Oct 2024 16:02:59 +0000 (+0300) Subject: drm/i915/dp: Write the source OUI for non-eDP sinks as well X-Git-Tag: microblaze-v6.16~14^2~17^2~185 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=1f12d63a14d7f858c0fab9824102c9a9cc08004d;p=linux-2.6-microblaze.git drm/i915/dp: Write the source OUI for non-eDP sinks as well 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 Reviewed-by: Ville Syrjälä Signed-off-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20241025160259.3088727-9-imre.deak@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index f884711cbad3..5fbb33bd6bb1 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -3410,9 +3410,6 @@ 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; @@ -6136,6 +6133,8 @@ 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; }