6.1-stable review patch. If anyone has any objections, please let me know.
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From: Zijun Hu quic_zijuhu@quicinc.com
[ Upstream commit a2fad248947d702ed3dcb52b8377c1a3ae201e44 ]
For WCN6855, board ID specific NVM needs to be downloaded once board ID is available, but the default NVM is always downloaded currently.
The wrong NVM causes poor RF performance, and effects user experience for several types of laptop with WCN6855 on the market.
Fix by downloading board ID specific NVM if board ID is available.
Fixes: 095327fede00 ("Bluetooth: hci_qca: Add support for QTI Bluetooth chip wcn6855") Cc: stable@vger.kernel.org # 6.4 Signed-off-by: Zijun Hu quic_zijuhu@quicinc.com Tested-by: Johan Hovold johan+linaro@kernel.org Reviewed-by: Johan Hovold johan+linaro@kernel.org Tested-by: Steev Klimaszewski steev@kali.org #Thinkpad X13s Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bluetooth/btqca.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index 484a860785fde..892e2540f008a 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -927,8 +927,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, "qca/msnv%02x.bin", rom_ver); break; case QCA_WCN6855: - snprintf(config.fwname, sizeof(config.fwname), - "qca/hpnv%02x.bin", rom_ver); + 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); break; case QCA_WCN7850: qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),