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authorImre Deak <imre.deak@intel.com>2024-10-25 19:02:59 +0300
committerImre Deak <imre.deak@intel.com>2024-10-31 19:11:18 +0300
commit1f12d63a14d7f858c0fab9824102c9a9cc08004d (patch)
tree861e68b37207daf4529613b81ffa753374e8bd45 /drivers/gpu/drm/i915
parent855e828c2665f21286e170c3f3c8656d8afcb72c (diff)
downloadlinux-1f12d63a14d7f858c0fab9824102c9a9cc08004d.tar.xz
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 <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241025160259.3088727-9-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c5
1 files 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 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;
}