linux-kernel - [PATCH v1] Bluetooth: btqca: Add WCN6855 firmware priority selection feature

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Message-Id: <20251112074638.1592864-1-quic_shuaz@quicinc.com>
Date: Wed, 12 Nov 2025 15:46:38 +0800
From: Shuai Zhang <quic_shuaz@...cinc.com>
To: Bartosz Golaszewski <brgl@...ev.pl>, Marcel Holtmann <marcel@...tmann.org>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>
Cc: linux-arm-msm@...r.kernel.org, linux-bluetooth@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_chejiang@...cinc.com,
        quic_jiaymao@...cinc.com, quic_chezhou@...cinc.com,
        Shuai Zhang <quic_shuaz@...cinc.com>
Subject: [PATCH v1] Bluetooth: btqca: Add WCN6855 firmware priority selection feature

For WCN6855: download wcnhpbtfwxx.tlv and wcnhpnvxx.xxx;
if they do not exist, download hpbtfwxx.tlv and hpnvxx.xxx instead.

Signed-off-by: Shuai Zhang <quic_shuaz@...cinc.com>
---
 drivers/bluetooth/btqca.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index 7c958d606..cafdae903 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -848,7 +848,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 			break;
 		case QCA_WCN6855:
 			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 +861,13 @@ 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 +930,7 @@ 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 +943,13 @@ 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;
-- 
2.34.1