From 9e80587aba4cdb9f50b2ffc546e2640ef0a33c48 Mon Sep 17 00:00:00 2001 From: Balakrishna Godavarthi Date: Wed, 11 Nov 2020 10:44:13 +0530 Subject: [PATCH] Bluetooth: hci_qca: Enhance retry logic in qca_setup Currently driver only retries to download FW if FW downloading is failed. Sometimes observed command timeout for version request command, if this happen on some platforms during boot time, then a reboot is needed to turn ON BT. Instead to avoid a reboot, now extended retry logic for version request command too. Signed-off-by: Balakrishna Godavarthi Reviewed-by: Abhishek Pandit-Subedi Signed-off-by: Marcel Holtmann --- drivers/bluetooth/hci_qca.c | 34 ++++++++++++++++++---------------- 1 file changed, 18 insertions(+), 16 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 2d3f1f179a1e..1c9a2d46e791 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1672,7 +1672,7 @@ static int qca_setup(struct hci_uart *hu) retry: ret = qca_power_on(hdev); if (ret) - return ret; + goto out; clear_bit(QCA_SSR_TRIGGERED, &qca->flags); @@ -1681,7 +1681,7 @@ retry: ret = qca_read_soc_version(hdev, &soc_ver, soc_type); if (ret) - return ret; + goto out; } else { qca_set_speed(hu, QCA_INIT_SPEED); } @@ -1691,7 +1691,7 @@ retry: if (speed) { ret = qca_set_speed(hu, QCA_OPER_SPEED); if (ret) - return ret; + goto out; qca_baudrate = qca_get_baudrate_value(speed); } @@ -1700,7 +1700,7 @@ retry: /* Get QCA version information */ ret = qca_read_soc_version(hdev, &soc_ver, soc_type); if (ret) - return ret; + goto out; } bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver); @@ -1721,20 +1721,22 @@ retry: * 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; - } + } + +out: + if (ret && retries < MAX_INIT_RETRIES) { + bt_dev_warn(hdev, "Retry BT power ON:%d", 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; } + retries++; + goto retry; } /* Setup bdaddr */ -- 2.20.1