linux-kernel - [PATCH v3 2/2] Bluetooth: btnxpuart: Update firmware names

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Message-Id: <20240410081049.775382-3-neeraj.sanjaykale@nxp.com>
Date: Wed, 10 Apr 2024 13:40:48 +0530
From: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
To: marcel@...tmann.org,
	luiz.dentz@...il.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	conor+dt@...nel.org
Cc: linux-bluetooth@...r.kernel.org,
	netdev@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	amitkumar.karwar@....com,
	rohit.fule@....com,
	neeraj.sanjaykale@....com,
	sherry.sun@....com,
	ziniu.wang_1@....com,
	haibo.chen@....com,
	LnxRevLi@....com
Subject: [PATCH v3 2/2] Bluetooth: btnxpuart: Update firmware names

This updates the firmware names of 3 chipsets: w8987, w8997, w9098.
These changes are been done to standardize chip specific firmware
file names.
To allow user to use older firmware file names, a new device tree
property has been introduced called firmware-name, which will override
the hardcoded firmware names in the driver.

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
---
v2: Remove "nxp/" from all firmware name definitions to be inline with
firware file name read from device tree file. (Krzysztof)
---
 drivers/bluetooth/btnxpuart.c | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c
index 0b93c2ff29e4..4442d911eba8 100644
--- a/drivers/bluetooth/btnxpuart.c
+++ b/drivers/bluetooth/btnxpuart.c
@@ -33,16 +33,16 @@
 /* NXP HW err codes */
 #define BTNXPUART_IR_HW_ERR		0xb0
 
-#define FIRMWARE_W8987		"nxp/uartuart8987_bt.bin"
-#define FIRMWARE_W8997		"nxp/uartuart8997_bt_v4.bin"
-#define FIRMWARE_W9098		"nxp/uartuart9098_bt_v1.bin"
-#define FIRMWARE_IW416		"nxp/uartiw416_bt_v0.bin"
-#define FIRMWARE_IW612		"nxp/uartspi_n61x_v1.bin.se"
-#define FIRMWARE_IW624		"nxp/uartiw624_bt.bin"
-#define FIRMWARE_SECURE_IW624	"nxp/uartiw624_bt.bin.se"
-#define FIRMWARE_AW693		"nxp/uartaw693_bt.bin"
-#define FIRMWARE_SECURE_AW693	"nxp/uartaw693_bt.bin.se"
-#define FIRMWARE_HELPER		"nxp/helper_uart_3000000.bin"
+#define FIRMWARE_W8987		"uart8987_bt_v0.bin"
+#define FIRMWARE_W8997		"uart8997_bt_v4.bin"
+#define FIRMWARE_W9098		"uart9098_bt_v1.bin"
+#define FIRMWARE_IW416		"uartiw416_bt_v0.bin"
+#define FIRMWARE_IW612		"uartspi_n61x_v1.bin.se"
+#define FIRMWARE_IW624		"uartiw624_bt.bin"
+#define FIRMWARE_SECURE_IW624	"uartiw624_bt.bin.se"
+#define FIRMWARE_AW693		"uartaw693_bt.bin"
+#define FIRMWARE_SECURE_AW693	"uartaw693_bt.bin.se"
+#define FIRMWARE_HELPER		"helper_uart_3000000.bin"
 
 #define CHIP_ID_W9098		0x5c03
 #define CHIP_ID_IW416		0x7201
@@ -685,13 +685,19 @@ static bool process_boot_signature(struct btnxpuart_dev *nxpdev)
 static int nxp_request_firmware(struct hci_dev *hdev, const char *fw_name)
 {
 	struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
+	const char *fw_name_dt;
 	int err = 0;
 
 	if (!fw_name)
 		return -ENOENT;
 
 	if (!strlen(nxpdev->fw_name)) {
-		snprintf(nxpdev->fw_name, MAX_FW_FILE_NAME_LEN, "%s", fw_name);
+		if (strcmp(fw_name, FIRMWARE_HELPER) &&
+		    !device_property_read_string(&nxpdev->serdev->dev,
+						 "firmware-name",
+						 &fw_name_dt))
+			fw_name = fw_name_dt;
+		snprintf(nxpdev->fw_name, MAX_FW_FILE_NAME_LEN, "nxp/%s", fw_name);
 
 		bt_dev_dbg(hdev, "Request Firmware: %s", nxpdev->fw_name);
 		err = request_firmware(&nxpdev->fw, nxpdev->fw_name, &hdev->dev);
-- 
2.34.1