@@ -129,6 +129,8 @@ struct snd_soc_acpi_link_adr {
* all firmware/topology related fields.
*
* @id: ACPI ID (usually the codec's) used to find a matching machine driver.
+ * @comp_ids: list of compatible audio codecs using the same machine driver,
+ * firmware and topology
* @link_mask: describes required board layout, e.g. for SoundWire.
* @links: array of link _ADR descriptors, null terminated.
* @drv_name: machine driver name
@@ -146,6 +148,7 @@ struct snd_soc_acpi_link_adr {
/* Descriptor for SST ASoC machine driver */
struct snd_soc_acpi_mach {
const u8 id[ACPI_ID_LEN];
+ const struct snd_soc_acpi_codecs *comp_ids;
const u32 link_mask;
const struct snd_soc_acpi_link_adr *links;
const char *drv_name;
@@ -8,14 +8,34 @@
#include <linux/module.h>
#include <sound/soc-acpi.h>
+static bool snd_soc_acpi_id_present(struct snd_soc_acpi_mach *machine)
+{
+ const struct snd_soc_acpi_codecs *comp_ids = machine->comp_ids;
+ int i;
+
+ if (machine->id[0]) {
+ if (acpi_dev_present(machine->id, NULL, -1))
+ return true;
+ }
+
+ if (comp_ids) {
+ for (i = 0; i < comp_ids->num_codecs; i++) {
+ if (acpi_dev_present(comp_ids->codecs[i], NULL, -1))
+ return true;
+ }
+ }
+
+ return false;
+}
+
struct snd_soc_acpi_mach *
snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines)
{
struct snd_soc_acpi_mach *mach;
struct snd_soc_acpi_mach *mach_alt;
- for (mach = machines; mach->id[0]; mach++) {
- if (acpi_dev_present(mach->id, NULL, -1)) {
+ for (mach = machines; mach->id[0] || mach->comp_ids; mach++) {
+ if (snd_soc_acpi_id_present(mach)) {
if (mach->machine_quirk) {
mach_alt = mach->machine_quirk(mach);
if (!mach_alt)
A machine driver needs to be enumerated by more than one ACPI HID if it supports second headphone driver (i.e. rt5682 and rt5682s). However, the id field in snd_soc_acpi_mach structure could contain only one HID. By adding a 'comp_ids' field which can contain several HIDs, we can enumerate a machine driver by multiple ACPI HIDs. Signed-off-by: Brent Lu <brent.lu@intel.com> --- include/sound/soc-acpi.h | 3 +++ sound/soc/soc-acpi.c | 24 ++++++++++++++++++++++-- 2 files changed, 25 insertions(+), 2 deletions(-)