diff options
Diffstat (limited to 'sound/soc/sdca/sdca_device.c')
| -rw-r--r-- | sound/soc/sdca/sdca_device.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sound/soc/sdca/sdca_device.c b/sound/soc/sdca/sdca_device.c index 4798ce2c8f0b..405e80b979de 100644 --- a/sound/soc/sdca/sdca_device.c +++ b/sound/soc/sdca/sdca_device.c @@ -7,6 +7,7 @@ */ #include <linux/acpi.h> +#include <linux/device.h> #include <linux/dmi.h> #include <linux/module.h> #include <linux/property.h> @@ -27,6 +28,25 @@ void sdca_lookup_interface_revision(struct sdw_slave *slave) } EXPORT_SYMBOL_NS(sdca_lookup_interface_revision, "SND_SOC_SDCA"); +static void devm_acpi_table_put(void *ptr) +{ + acpi_put_table((struct acpi_table_header *)ptr); +} + +void sdca_lookup_swft(struct sdw_slave *slave) +{ + acpi_status status; + + status = acpi_get_table(ACPI_SIG_SWFT, 0, + (struct acpi_table_header **)&slave->sdca_data.swft); + if (ACPI_FAILURE(status)) + dev_info(&slave->dev, "SWFT not available\n"); + else + devm_add_action_or_reset(&slave->dev, devm_acpi_table_put, + &slave->sdca_data.swft); +} +EXPORT_SYMBOL_NS(sdca_lookup_swft, "SND_SOC_SDCA"); + static bool sdca_device_quirk_rt712_vb(struct sdw_slave *slave) { struct sdw_slave_id *id = &slave->id; |