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Commit 40c5d876 authored by Adam Jackson's avatar Adam Jackson Committed by Dave Airlie
Browse files

drm/radeon/dp: Probe branch/sink OUIs 



Signed-off-by: default avatarAdam Jackson <ajax@redhat.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarJerome Glisse <jglisse@redhat.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 0d198328

drivers/gpu/drm/radeon/atombios_dp.c

+20 −0
Original line number Diff line number Diff line
@@ -530,6 +530,23 @@ u8 radeon_dp_getsinktype(struct radeon_connector *radeon_connector) 
					 dig_connector->dp_i2c_bus->rec.i2c_id, 0);

}



static void radeon_dp_probe_oui(struct radeon_connector *radeon_connector)

{

	struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv;

	u8 buf[3];



	if (!(dig_connector->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))

		return;



	if (radeon_dp_aux_native_read(radeon_connector, DP_SINK_OUI, buf, 3, 0))

		DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n",

			      buf[0], buf[1], buf[2]);



	if (radeon_dp_aux_native_read(radeon_connector, DP_BRANCH_OUI, buf, 3, 0))

		DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n",

			      buf[0], buf[1], buf[2]);

}



bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector)

{

	struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv;
@@ -543,6 +560,9 @@ bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector) 
		for (i = 0; i < 8; i++)

			DRM_DEBUG_KMS("%02x ", msg[i]);

		DRM_DEBUG_KMS("\n");



		radeon_dp_probe_oui(radeon_connector);



		return true;

	}

	dig_connector->dpcd[0] = 0;