@@ -358,6 +358,13 @@ int snd_sof_device_probe(struct device *dev, struct snd_sof_pdata *plat_data)
sdev->first_boot = true;
dev_set_drvdata(dev, sdev);
+ /* check IPC support */
+ if (!(BIT(plat_data->ipc_type) & plat_data->desc->ipc_supported_mask)) {
+ dev_err(dev, "ipc_type %d is not supported on this platform, mask is %#x\n",
+ plat_data->ipc_type, plat_data->desc->ipc_supported_mask);
+ return -EINVAL;
+ }
+
/* init ops, if necessary */
ret = sof_ops_init(sdev);
if (ret < 0)
@@ -40,6 +40,10 @@ static int sof_pci_debug;
module_param_named(sof_pci_debug, sof_pci_debug, int, 0444);
MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)");
+static int sof_pci_ipc_type = -1;
+module_param_named(ipc_type, sof_pci_ipc_type, int, 0444);
+MODULE_PARM_DESC(ipc_type, "SOF IPC type (0): SOF, (1) Intel CAVS");
+
static const char *sof_dmi_override_tplg_name;
static bool sof_dmi_use_community_key;
@@ -206,6 +210,23 @@ int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
sof_pdata->ipc_type = desc->ipc_default;
+ if (sof_pci_ipc_type < 0) {
+ sof_pdata->ipc_type = desc->ipc_default;
+ } else {
+ dev_info(dev, "overriding default IPC %d to requested %d\n",
+ desc->ipc_default, sof_pci_ipc_type);
+ if (sof_pci_ipc_type >= SOF_IPC_TYPE_COUNT) {
+ dev_err(dev, "invalid request value %d\n", sof_pci_ipc_type);
+ return -EINVAL;
+ }
+ if (!(BIT(sof_pci_ipc_type) & desc->ipc_supported_mask)) {
+ dev_err(dev, "invalid request value %d, supported mask is %#x\n",
+ sof_pci_ipc_type, desc->ipc_supported_mask);
+ return -EINVAL;
+ }
+ sof_pdata->ipc_type = sof_pci_ipc_type;
+ }
+
if (fw_filename) {
sof_pdata->fw_filename = fw_filename;