When interfaces can be pin-muxed, static information from ACPI might not be enough. Add information on which links needs to be enabled by hardware/firmware for a specific machine driver to be selected.
When walking through the list of possible machines, links will be checked, which implies that configurations where multiple links are required need to be checked first.
Additional criteria will be needed later, such as which SoundWire Slave devices are actually enabled, but for now this helps detect between basic configurations.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- include/sound/soc-acpi.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/include/sound/soc-acpi.h b/include/sound/soc-acpi.h index 35b38e41e5b2..c0fb71c7b3ad 100644 --- a/include/sound/soc-acpi.h +++ b/include/sound/soc-acpi.h @@ -75,6 +75,7 @@ struct snd_soc_acpi_mach_params { * all firmware/topology related fields. * * @id: ACPI ID (usually the codec's) used to find a matching machine driver. + * @link_mask: describes required board layout, e.g. for SoundWire. * @drv_name: machine driver name * @fw_filename: firmware file name. Used when SOF is not enabled. * @board: board name @@ -90,6 +91,7 @@ struct snd_soc_acpi_mach_params { /* Descriptor for SST ASoC machine driver */ struct snd_soc_acpi_mach { const u8 id[ACPI_ID_LEN]; + const u32 link_mask; const char *drv_name; const char *fw_filename; const char *board;