In the HDAS ACPI scope, the SoundWire may not be the direct child of HDAS. It needs to go through the ACPI table at max depth of 2 to find the SoundWire device from HDAS. Libin Yang (2): ALSA: hda: intel-sdw-acpi: harden detection of controller ALSA: hda: intel-sdw-acpi: go through HDAS ACPI at max depth of 2 sound/hda/intel-sdw-acpi.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) -- 2.17.1