diff options
| -rw-r--r-- | drivers/bluetooth/hci_qca.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index ecb74965be10..1139142e8eed 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -55,6 +55,9 @@ /* Controller debug log header */ #define QCA_DEBUG_HANDLE 0x2EDC +/* max retry count when init fails */ +#define MAX_INIT_RETRIES 3 + /* Controller dump header */ #define QCA_SSR_DUMP_HANDLE 0x0108 #define QCA_DUMP_PACKET_SIZE 255 @@ -1539,6 +1542,7 @@ static int qca_setup(struct hci_uart *hu) struct hci_dev *hdev = hu->hdev; struct qca_data *qca = hu->priv; unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200; + unsigned int retries = 0; enum qca_btsoc_type soc_type = qca_soc_type(hu); const char *firmware_name = qca_get_firmware_name(hu); int ret; @@ -1559,6 +1563,7 @@ static int qca_setup(struct hci_uart *hu) bt_dev_info(hdev, "setting up %s", qca_is_wcn399x(soc_type) ? "wcn399x" : "ROME"); +retry: ret = qca_power_on(hdev); if (ret) return ret; @@ -1613,6 +1618,20 @@ static int qca_setup(struct hci_uart *hu) * patch/nvm-config is found, so run with original fw/config. */ ret = 0; + } else { + if (retries < MAX_INIT_RETRIES) { + qca_power_shutdown(hu); + if (hu->serdev) { + serdev_device_close(hu->serdev); + ret = serdev_device_open(hu->serdev); + if (ret) { + bt_dev_err(hdev, "failed to open port"); + return ret; + } + } + retries++; + goto retry; + } } /* Setup bdaddr */ |