if (machine->id[0]) { if (acpi_dev_present(machine->id, NULL, -1)) returntrue;
}
if (comp_ids) { for (i = 0; i < comp_ids->num_codecs; i++) { if (acpi_dev_present(comp_ids->codecs[i], NULL, -1)) {
strscpy(machine->id, comp_ids->codecs[i], ACPI_ID_LEN); returntrue;
}
}
}
/* Check if all Slaves defined on the link can be found */ bool snd_soc_acpi_sdw_link_slaves_found(struct device *dev, conststruct snd_soc_acpi_link_adr *link, struct sdw_peripherals *peripherals)
{ unsignedint part_id, link_id, unique_id, mfg_id, version; int i, j, k;
for (i = 0; i < link->num_adr; i++) {
u64 adr = link->adr_d[i].adr; int reported_part_count = 0;
/* find out how many identical parts were reported on that link */ if (peripheral->bus->link_id == link_id &&
peripheral->id.part_id == part_id &&
peripheral->id.mfg_id == mfg_id &&
peripheral->id.sdw_version == version)
reported_part_count++;
}
for (j = 0; j < peripherals->num_peripherals; j++) { struct sdw_slave *peripheral = peripherals->array[j]; int expected_part_count = 0;
/* find out how many identical parts are expected */ for (k = 0; k < link->num_adr; k++) {
u64 adr2 = link->adr_d[k].adr;
if (SDW_CODEC_ADR_MASK(adr2) == SDW_CODEC_ADR_MASK(adr))
expected_part_count++;
}
if (reported_part_count == expected_part_count) { /* * we have to check unique id * if there is more than one * Slave on the link
*/
unique_id = SDW_UNIQUE_ID(adr); if (reported_part_count == 1 ||
peripheral->id.unique_id == unique_id) {
dev_dbg(dev, "found part_id %#x at link %d\n", part_id, link_id); break;
}
} else {
dev_dbg(dev, "part_id %#x reported %d expected %d on link %d, skipping\n",
part_id, reported_part_count, expected_part_count, link_id);
}
} if (j == peripherals->num_peripherals) {
dev_dbg(dev, "Slave part_id %#x not found\n", part_id); returnfalse;
}
} returntrue;
}
EXPORT_SYMBOL_GPL(snd_soc_acpi_sdw_link_slaves_found);
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