[PATCH v5 2/3] Bluetooth: btmtk: Improve BT firmware logging

[Chris Lu <chris.lu@mediatek.com>]

Improve firmware loading log messages to provide more useful information:

- Add firmware filename before loading to help identify which file
  is being loaded
- Display chip ID (dev_id) as HW version instead of firmware's hwver
  field, which provides more meaningful hardware identification

log output with MT7922
[  212.878783] Bluetooth: hci1: Loading BT firmware: mediatek/BT_RAM_CODE_MT7922_1_1_hdr.bin
[  212.889614] Bluetooth: hci1: BT HW ver: 0x7922, SW ver: 0x008a, Build Time: 20260224103448
[  216.048877] Bluetooth: hci1: Device setup in 3096530 usecs
[  216.048890] Bluetooth: hci1: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported.
[  216.114179] Bluetooth: hci1: AOSP extensions version v1.00
[  216.114220] Bluetooth: hci1: AOSP quality report is supported
[  216.116782] Bluetooth: MGMT ver 1.23

Signed-off-by: Chris Lu <chris.lu@mediatek.com>
---
 drivers/bluetooth/btmtk.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
index 21c08ee1cdbf..dc40820bfea0 100644
--- a/drivers/bluetooth/btmtk.c
+++ b/drivers/bluetooth/btmtk.c
@@ -147,6 +147,8 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
 	u32 section_num, dl_size, section_offset;
 	u8 cmd[64];
 
+	bt_dev_info(hdev, "Loading BT firmware: %s", fwname);
+
 	err = request_firmware(&fw, fwname, &hdev->dev);
 	if (err < 0) {
 		bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
@@ -159,8 +161,8 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
 	globaldesc = (struct btmtk_global_desc *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE);
 	section_num = le32_to_cpu(globaldesc->section_num);
 
-	bt_dev_info(hdev, "HW/SW Version: 0x%04x%04x, Build Time: %s",
-		    le16_to_cpu(hdr->hwver), le16_to_cpu(hdr->swver), hdr->datetime);
+	bt_dev_info(hdev, "BT HW ver: 0x%04x, SW ver: 0x%04x, Build Time: %s",
+		    dev_id & 0xffff, le16_to_cpu(hdr->swver), hdr->datetime);
 
 	for (i = 0; i < section_num; i++) {
 		first_block = 1;
-- 
2.45.2