Bluetooth: Fix complicated assignment of firmware for Marvell devices

The Marvell Bluetooth SDIO driver has a really complicated concept on how
firmware names are assigned to specific device ids. Fix that by doing a
proper structure and assign it to the module device table.

And while at it fix various coding style weirdness that is still present
in this driver.
Signed-off-by: Marcel Holtman <marcel@holtmann.org>

drivers/bluetooth/btmrvl_sdio.c

@@ -31,10 +31,6 @@
 
 #define VERSION "1.0"
 
-#ifndef SDIO_DEVICE_ID_MARVELL_8688BT
-#define SDIO_DEVICE_ID_MARVELL_8688BT		0x9105
-#endif
-
 /* The btmrvl_sdio_remove() callback function is called
  * when user removes this module from kernel space or ejects
  * the card from the slot. The driver handles these 2 cases
@@ -51,21 +47,21 @@
  */
 static u8 user_rmmod;
 
-static const struct sdio_device_id btmrvl_sdio_ids[] = {
-	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8688BT)},
-	{0, 0, 0, 0}
+static const struct btmrvl_sdio_device btmrvl_sdio_sd6888 = {
+	.helper		= "sd8688_helper.bin",
+	.firmware	= "sd8688.bin",
 };
 
-MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
+static const struct sdio_device_id btmrvl_sdio_ids[] = {
+	/* Marvell SD8688 Bluetooth device */
+	{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
+			.driver_data = (unsigned long) &btmrvl_sdio_sd6888 },
 
-static struct btmrvl_sdio_device btmrvl_sdio_devices[] = {
-	{
-		.dev_id = SDIO_DEVICE_ID_MARVELL_8688BT,
-		.helper = "sd8688_helper.bin",
-		.firmware = "sd8688.bin",
-	},
+	{ }	/* Terminating entry */
 };
 
+MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
+
 static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
 {
 	u8 reg;
@@ -301,10 +297,8 @@ static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
 				tx_len);
 
 		/* Now send the data */
-		ret = sdio_writesb(card->func, card->ioport,
-				   helperbuf,
-				   FIRMWARE_TRANSFER_NBLOCK *
-				   SDIO_BLOCK_SIZE);
+		ret = sdio_writesb(card->func, card->ioport, helperbuf,
+				FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
 		if (ret < 0) {
 			BT_ERR("IO error during helper download @ %d",
 				hlprblknow);
@@ -691,9 +685,9 @@ static void btmrvl_sdio_interrupt(struct sdio_func *func)
 
 static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
 {
-	int ret = 0, i;
-	u8 reg;
 	struct sdio_func *func;
+	u8 reg;
+	int ret = 0;
 
 	BT_DBG("Enter");
 
@@ -705,20 +699,6 @@ static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
 
 	func = card->func;
 
-	for (i = 0; i < ARRAY_SIZE(btmrvl_sdio_devices); i++) {
-		if (func->device == btmrvl_sdio_devices[i].dev_id)
-			break;
-	}
-
-	if (i == ARRAY_SIZE(btmrvl_sdio_devices)) {
-		BT_ERR("Error: unknown device id 0x%x", func->device);
-		ret = -EINVAL;
-		goto failed;
-	}
-
-	card->helper = btmrvl_sdio_devices[i].helper;
-	card->firmware = btmrvl_sdio_devices[i].firmware;
-
 	sdio_claim_host(func);
 
 	ret = sdio_enable_func(func);
@@ -1002,6 +982,12 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
 
 	card->func = func;
 
+	if (id->driver_data) {
+		struct btmrvl_sdio_device *data = (void *) id->driver_data;
+		card->helper   = data->helper;
+		card->firmware = data->firmware;
+	}
+
 	if (btmrvl_sdio_register_dev(card) < 0) {
 		BT_ERR("Failed to register BT device!");
 		ret = -ENODEV;

drivers/bluetooth/btmrvl_sdio.h

@@ -90,7 +90,6 @@ struct btmrvl_sdio_card {
 };
 
 struct btmrvl_sdio_device {
-	unsigned short dev_id;
 	const char *helper;
 	const char *firmware;
 };