drm/i915/dp: Add wrapper function to check AS SDP

Add a wrapper function to check if both the source and
sink support Adaptive Sync SDP.

--v1:
Just use drm/i915/dp in subject line.

Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240322031157.3823909-6-mitulkumar.ajitkumar.golani@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 4e62a774a5cf0298e3189489c7a8042c53f59a15..365ff7fa6daea1629ebbe6947c46295076a0b0a8 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -123,6 +123,14 @@ bool intel_dp_is_edp(struct intel_dp *intel_dp)
        return dig_port->base.type == INTEL_OUTPUT_EDP;
 }
 
+bool intel_dp_as_sdp_supported(struct intel_dp *intel_dp)
+{
+       struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+
+       return HAS_AS_SDP(i915) &&
+               drm_dp_as_sdp_supported(&intel_dp->aux, intel_dp->dpcd);
+}
+
 static void intel_dp_unset_edid(struct intel_dp *intel_dp);
 
 /* Is link rate UHBR and thus 128b/132b? */

diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index c540d3a73fe74521380735f4c772d41645fc4851..9f880d7865d1c24cdceb6f25100d7298b09ab54f 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -88,6 +88,7 @@ void intel_dp_audio_compute_config(struct intel_encoder *encoder,
                                   struct drm_connector_state *conn_state);
 bool intel_dp_has_hdmi_sink(struct intel_dp *intel_dp);
 bool intel_dp_is_edp(struct intel_dp *intel_dp);
+bool intel_dp_as_sdp_supported(struct intel_dp *intel_dp);
 bool intel_dp_is_uhbr(const struct intel_crtc_state *crtc_state);
 int intel_dp_link_symbol_size(int rate);
 int intel_dp_link_symbol_clock(int rate);