The prefix "wcn" corresponds to the WCN685x chip, while entries without the "wcn" prefix correspond to the QCA2066 chip. There are some feature differences between the two.

However, due to historical reasons, WCN685x chip has been using firmware without the "wcn" prefix. The mapping between the chip and its corresponding firmware has now been corrected.

Cc: stable@vger.kernel.org Fixes: 30209aeff75f ("Bluetooth: qca: Expand firmware-name to load specific rampatch") Signed-off-by: Shuai Zhang shuai.zhang@oss.qualcomm.com --- drivers/bluetooth/btqca.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index 7c958d606..8e0004ef7 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -847,8 +847,12 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, "qca/msbtfw%02x.mbn", rom_ver); break; case QCA_WCN6855: + /* Due to historical reasons, WCN685x chip has been using firmware + * without the "wcn" prefix. The mapping between the chip and its + * corresponding firmware has now been corrected. + */ snprintf(config.fwname, sizeof(config.fwname), - "qca/hpbtfw%02x.tlv", rom_ver); + "qca/wcnhpbtfw%02x.tlv", rom_ver); break; case QCA_WCN7850: snprintf(config.fwname, sizeof(config.fwname), @@ -861,6 +865,13 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, }

err = qca_download_firmware(hdev, &config, soc_type, rom_ver); + + if (!rampatch_name && err < 0 && soc_type == QCA_WCN6855) { + snprintf(config.fwname, sizeof(config.fwname), + "qca/hpbtfw%02x.tlv", rom_ver); + err = qca_download_firmware(hdev, &config, soc_type, rom_ver); + } + if (err < 0) { bt_dev_err(hdev, "QCA Failed to download patch (%d)", err); return err; @@ -923,7 +934,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, case QCA_WCN6855: qca_read_fw_board_id(hdev, &boardid); qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname), - "hpnv", soc_type, ver, rom_ver, boardid); + "wcnhpnv", soc_type, ver, rom_ver, boardid); break; case QCA_WCN7850: qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname), @@ -936,6 +947,13 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, }

err = qca_download_firmware(hdev, &config, soc_type, rom_ver); + + if (!firmware_name && err < 0 && soc_type == QCA_WCN6855) { + qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname), + "hpnv", soc_type, ver, rom_ver, boardid); + err = qca_download_firmware(hdev, &config, soc_type, rom_ver); + } + if (err < 0) { bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err); return err;