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-rw-r--r--src/mainboard/system76/adl/devicetree.cb1
-rw-r--r--src/mainboard/system76/rpl/devicetree.cb1
2 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/system76/adl/devicetree.cb b/src/mainboard/system76/adl/devicetree.cb
index ad70b0595b..9a7841506c 100644
--- a/src/mainboard/system76/adl/devicetree.cb
+++ b/src/mainboard/system76/adl/devicetree.cb
@@ -82,6 +82,7 @@ chip soc/intel/alderlake
device ref p2sb on end
device ref hda on
register "pch_hda_audio_link_hda_enable" = "1"
+ register "pch_hda_sdi_enable[0]" = "1"
register "pch_hda_idisp_codec_enable" = "1"
register "pch_hda_idisp_link_frequency" = "HDA_LINKFREQ_96MHZ"
register "pch_hda_idisp_link_tmode" = "HDA_TMODE_8T"
diff --git a/src/mainboard/system76/rpl/devicetree.cb b/src/mainboard/system76/rpl/devicetree.cb
index a016dec962..d389d2175b 100644
--- a/src/mainboard/system76/rpl/devicetree.cb
+++ b/src/mainboard/system76/rpl/devicetree.cb
@@ -66,6 +66,7 @@ chip soc/intel/alderlake
device ref p2sb on end
device ref hda on
register "pch_hda_audio_link_hda_enable" = "1"
+ register "pch_hda_sdi_enable[0]" = "1"
register "pch_hda_idisp_codec_enable" = "1"
register "pch_hda_idisp_link_frequency" = "HDA_LINKFREQ_96MHZ"
register "pch_hda_idisp_link_tmode" = "HDA_TMODE_8T"