Merge branch 'for-upstream' of...

Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2018-01-25

Here's one last bluetooth-next pull request for the 4.16 kernel:

 - Improved support for Intel controllers
 - New set_parity method to serdev (agreed with maintainers to be taken
   through bluetooth-next)
 - Fix error path in hci_bcm (missing call to serdev close)
 - New ID for BCM4343A0 UART controller

Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/bluetooth/btbcm.c

@@ -323,6 +323,7 @@ static const struct {
 	{ 0x410e, "BCM43341B0"	},	/* 002.001.014 */
 	{ 0x4406, "BCM4324B3"	},	/* 002.004.006 */
 	{ 0x610c, "BCM4354"	},	/* 003.001.012 */
+	{ 0x2122, "BCM4343A0"	},	/* 001.001.034 */
 	{ 0x2209, "BCM43430A1"  },	/* 001.002.009 */
 	{ 0x6119, "BCM4345C0"	},	/* 003.001.025 */
 	{ 0x230f, "BCM4356A2"	},	/* 001.003.015 */

drivers/bluetooth/btintel.c

@@ -24,6 +24,7 @@
 #include <linux/module.h>
 #include <linux/firmware.h>
 #include <linux/regmap.h>
+#include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -569,6 +570,160 @@ struct regmap *btintel_regmap_init(struct hci_dev *hdev, u16 opcode_read,
 }
 EXPORT_SYMBOL_GPL(btintel_regmap_init);
 
+int btintel_send_intel_reset(struct hci_dev *hdev, u32 boot_param)
+{
+	struct intel_reset params = { 0x00, 0x01, 0x00, 0x01, 0x00000000 };
+	struct sk_buff *skb;
+
+	params.boot_param = cpu_to_le32(boot_param);
+
+	skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(params), &params,
+			     HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		bt_dev_err(hdev, "Failed to send Intel Reset command");
+		return PTR_ERR(skb);
+	}
+
+	kfree_skb(skb);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(btintel_send_intel_reset);
+
+int btintel_read_boot_params(struct hci_dev *hdev,
+			     struct intel_boot_params *params)
+{
+	struct sk_buff *skb;
+
+	skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		bt_dev_err(hdev, "Reading Intel boot parameters failed (%ld)",
+			   PTR_ERR(skb));
+		return PTR_ERR(skb);
+	}
+
+	if (skb->len != sizeof(*params)) {
+		bt_dev_err(hdev, "Intel boot parameters size mismatch");
+		kfree_skb(skb);
+		return -EILSEQ;
+	}
+
+	memcpy(params, skb->data, sizeof(*params));
+
+	kfree_skb(skb);
+
+	if (params->status) {
+		bt_dev_err(hdev, "Intel boot parameters command failed (%02x)",
+			   params->status);
+		return -bt_to_errno(params->status);
+	}
+
+	bt_dev_info(hdev, "Device revision is %u",
+		    le16_to_cpu(params->dev_revid));
+
+	bt_dev_info(hdev, "Secure boot is %s",
+		    params->secure_boot ? "enabled" : "disabled");
+
+	bt_dev_info(hdev, "OTP lock is %s",
+		    params->otp_lock ? "enabled" : "disabled");
+
+	bt_dev_info(hdev, "API lock is %s",
+		    params->api_lock ? "enabled" : "disabled");
+
+	bt_dev_info(hdev, "Debug lock is %s",
+		    params->debug_lock ? "enabled" : "disabled");
+
+	bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
+		    params->min_fw_build_nn, params->min_fw_build_cw,
+		    2000 + params->min_fw_build_yy);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(btintel_read_boot_params);
+
+int btintel_download_firmware(struct hci_dev *hdev, const struct firmware *fw,
+			      u32 *boot_param)
+{
+	int err;
+	const u8 *fw_ptr;
+	u32 frag_len;
+
+	/* Start the firmware download transaction with the Init fragment
+	 * represented by the 128 bytes of CSS header.
+	 */
+	err = btintel_secure_send(hdev, 0x00, 128, fw->data);
+	if (err < 0) {
+		bt_dev_err(hdev, "Failed to send firmware header (%d)", err);
+		goto done;
+	}
+
+	/* Send the 256 bytes of public key information from the firmware
+	 * as the PKey fragment.
+	 */
+	err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
+	if (err < 0) {
+		bt_dev_err(hdev, "Failed to send firmware pkey (%d)", err);
+		goto done;
+	}
+
+	/* Send the 256 bytes of signature information from the firmware
+	 * as the Sign fragment.
+	 */
+	err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
+	if (err < 0) {
+		bt_dev_err(hdev, "Failed to send firmware signature (%d)", err);
+		goto done;
+	}
+
+	fw_ptr = fw->data + 644;
+	frag_len = 0;
+
+	while (fw_ptr - fw->data < fw->size) {
+		struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
+
+		/* Each SKU has a different reset parameter to use in the
+		 * HCI_Intel_Reset command and it is embedded in the firmware
+		 * data. So, instead of using static value per SKU, check
+		 * the firmware data and save it for later use.
+		 */
+		if (le16_to_cpu(cmd->opcode) == 0xfc0e) {
+			/* The boot parameter is the first 32-bit value
+			 * and rest of 3 octets are reserved.
+			 */
+			*boot_param = get_unaligned_le32(fw_ptr + sizeof(*cmd));
+
+			bt_dev_dbg(hdev, "boot_param=0x%x", *boot_param);
+		}
+
+		frag_len += sizeof(*cmd) + cmd->plen;
+
+		/* The parameter length of the secure send command requires
+		 * a 4 byte alignment. It happens so that the firmware file
+		 * contains proper Intel_NOP commands to align the fragments
+		 * as needed.
+		 *
+		 * Send set of commands with 4 byte alignment from the
+		 * firmware data buffer as a single Data fragement.
+		 */
+		if (!(frag_len % 4)) {
+			err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
+			if (err < 0) {
+				bt_dev_err(hdev,
+					   "Failed to send firmware data (%d)",
+					   err);
+				goto done;
+			}
+
+			fw_ptr += frag_len;
+			frag_len = 0;
+		}
+	}
+
+done:
+	return err;
+}
+EXPORT_SYMBOL_GPL(btintel_download_firmware);
+
 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
 MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION);
 MODULE_VERSION(VERSION);

drivers/bluetooth/btintel.h

@@ -69,6 +69,14 @@ struct intel_secure_send_result {
 	__u8     status;
 } __packed;
 
+struct intel_reset {
+	__u8     reset_type;
+	__u8     patch_enable;
+	__u8     ddc_reload;
+	__u8     boot_option;
+	__le32   boot_param;
+} __packed;
+
 #if IS_ENABLED(CONFIG_BT_INTEL)
 
 int btintel_check_bdaddr(struct hci_dev *hdev);
@@ -89,7 +97,11 @@ int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver);
 
 struct regmap *btintel_regmap_init(struct hci_dev *hdev, u16 opcode_read,
 				   u16 opcode_write);
-
+int btintel_send_intel_reset(struct hci_dev *hdev, u32 boot_param);
+int btintel_read_boot_params(struct hci_dev *hdev,
+			     struct intel_boot_params *params);
+int btintel_download_firmware(struct hci_dev *dev, const struct firmware *fw,
+			      u32 *boot_param);
 #else
 
 static inline int btintel_check_bdaddr(struct hci_dev *hdev)
@@ -165,4 +177,23 @@ static inline struct regmap *btintel_regmap_init(struct hci_dev *hdev,
 {
 	return ERR_PTR(-EINVAL);
 }
+
+static inline int btintel_send_intel_reset(struct hci_dev *hdev,
+					   u32 reset_param)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int btintel_read_boot_params(struct hci_dev *hdev,
+					   struct intel_boot_params *params)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int btintel_download_firmware(struct hci_dev *dev,
+					    const struct firmware *fw,
+					    u32 *boot_param)
+{
+	return -EOPNOTSUPP;
+}
 #endif

drivers/bluetooth/btusb.c

@@ -2009,15 +2009,11 @@ static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
 
 static int btusb_setup_intel_new(struct hci_dev *hdev)
 {
-	static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
-					  0x00, 0x08, 0x04, 0x00 };
 	struct btusb_data *data = hci_get_drvdata(hdev);
-	struct sk_buff *skb;
 	struct intel_version ver;
-	struct intel_boot_params *params;
+	struct intel_boot_params params;
 	const struct firmware *fw;
-	const u8 *fw_ptr;
-	u32 frag_len;
+	u32 boot_param;
 	char fwname[64];
 	ktime_t calltime, delta, rettime;
 	unsigned long long duration;
@@ -2025,6 +2021,12 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 
 	BT_DBG("%s", hdev->name);
 
+	/* Set the default boot parameter to 0x0 and it is updated to
+	 * SKU specific boot parameter after reading Intel_Write_Boot_Params
+	 * command while downloading the firmware.
+	 */
+	boot_param = 0x00000000;
+
 	calltime = ktime_get();
 
 	/* Read the Intel version information to determine if the device
@@ -2095,55 +2097,24 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 	/* Read the secure boot parameters to identify the operating
 	 * details of the bootloader.
 	 */
-	skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
-	if (IS_ERR(skb)) {
-		BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
-		       hdev->name, PTR_ERR(skb));
-		return PTR_ERR(skb);
-	}
-
-	if (skb->len != sizeof(*params)) {
-		BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
-		kfree_skb(skb);
-		return -EILSEQ;
-	}
-
-	params = (struct intel_boot_params *)skb->data;
-
-	bt_dev_info(hdev, "Device revision is %u",
-		    le16_to_cpu(params->dev_revid));
-
-	bt_dev_info(hdev, "Secure boot is %s",
-		    params->secure_boot ? "enabled" : "disabled");
-
-	bt_dev_info(hdev, "OTP lock is %s",
-		    params->otp_lock ? "enabled" : "disabled");
-
-	bt_dev_info(hdev, "API lock is %s",
-		    params->api_lock ? "enabled" : "disabled");
-
-	bt_dev_info(hdev, "Debug lock is %s",
-		    params->debug_lock ? "enabled" : "disabled");
-
-	bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
-		    params->min_fw_build_nn, params->min_fw_build_cw,
-		    2000 + params->min_fw_build_yy);
+	err = btintel_read_boot_params(hdev, &params);
+	if (err)
+		return err;
 
 	/* It is required that every single firmware fragment is acknowledged
 	 * with a command complete event. If the boot parameters indicate
 	 * that this bootloader does not send them, then abort the setup.
 	 */
-	if (params->limited_cce != 0x00) {
+	if (params.limited_cce != 0x00) {
 		BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
-		       hdev->name, params->limited_cce);
-		kfree_skb(skb);
+		       hdev->name, params.limited_cce);
 		return -EINVAL;
 	}
 
 	/* If the OTP has no valid Bluetooth device address, then there will
 	 * also be no valid address for the operational firmware.
 	 */
-	if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
+	if (!bacmp(&params.otp_bdaddr, BDADDR_ANY)) {
 		bt_dev_info(hdev, "No device address configured");
 		set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
 	}
@@ -2174,7 +2145,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 	case 0x0c:	/* WsP */
 		snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
 			 le16_to_cpu(ver.hw_variant),
-			 le16_to_cpu(params->dev_revid));
+			 le16_to_cpu(params.dev_revid));
 		break;
 	case 0x11:	/* JfP */
 	case 0x12:	/* ThP */
@@ -2192,7 +2163,6 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 	if (err < 0) {
 		BT_ERR("%s: Failed to load Intel firmware file (%d)",
 		       hdev->name, err);
-		kfree_skb(skb);
 		return err;
 	}
 
@@ -2206,7 +2176,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 	case 0x0c:	/* WsP */
 		snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
 			 le16_to_cpu(ver.hw_variant),
-			 le16_to_cpu(params->dev_revid));
+			 le16_to_cpu(params.dev_revid));
 		break;
 	case 0x11:	/* JfP */
 	case 0x12:	/* ThP */
@@ -2220,8 +2190,6 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 		return -EINVAL;
 	}
 
-	kfree_skb(skb);
-
 	if (fw->size < 644) {
 		BT_ERR("%s: Invalid size of firmware file (%zu)",
 		       hdev->name, fw->size);
@@ -2231,64 +2199,10 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 
 	set_bit(BTUSB_DOWNLOADING, &data->flags);
 
-	/* Start the firmware download transaction with the Init fragment
-	 * represented by the 128 bytes of CSS header.
-	 */
-	err = btintel_secure_send(hdev, 0x00, 128, fw->data);
-	if (err < 0) {
-		BT_ERR("%s: Failed to send firmware header (%d)",
-		       hdev->name, err);
-		goto done;
-	}
-
-	/* Send the 256 bytes of public key information from the firmware
-	 * as the PKey fragment.
-	 */
-	err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
-	if (err < 0) {
-		BT_ERR("%s: Failed to send firmware public key (%d)",
-		       hdev->name, err);
-		goto done;
-	}
-
-	/* Send the 256 bytes of signature information from the firmware
-	 * as the Sign fragment.
-	 */
-	err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
-	if (err < 0) {
-		BT_ERR("%s: Failed to send firmware signature (%d)",
-		       hdev->name, err);
-		goto done;
-	}
-
-	fw_ptr = fw->data + 644;
-	frag_len = 0;
-
-	while (fw_ptr - fw->data < fw->size) {
-		struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
-
-		frag_len += sizeof(*cmd) + cmd->plen;
-
-		/* The parameter length of the secure send command requires
-		 * a 4 byte alignment. It happens so that the firmware file
-		 * contains proper Intel_NOP commands to align the fragments
-		 * as needed.
-		 *
-		 * Send set of commands with 4 byte alignment from the
-		 * firmware data buffer as a single Data fragement.
-		 */
-		if (!(frag_len % 4)) {
-			err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
-			if (err < 0) {
-				BT_ERR("%s: Failed to send firmware data (%d)",
-				       hdev->name, err);
+	/* Start firmware downloading and get boot parameter */
+	err = btintel_download_firmware(hdev, fw, &boot_param);
+	if (err < 0)
 		goto done;
-			}
-
-			fw_ptr += frag_len;
-			frag_len = 0;
-		}
-	}
 
 	set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
 
@@ -2341,12 +2255,9 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 
 	set_bit(BTUSB_BOOTING, &data->flags);
 
-	skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
-			     HCI_INIT_TIMEOUT);
-	if (IS_ERR(skb))
-		return PTR_ERR(skb);
-
-	kfree_skb(skb);
+	err = btintel_send_intel_reset(hdev, boot_param);
+	if (err)
+		return err;
 
 	/* The bootloader will not indicate when the device is ready. This
 	 * is done by the operational firmware sending bootup notification.

drivers/bluetooth/hci_bcm.c

@@ -412,7 +412,10 @@ static int bcm_open(struct hci_uart *hu)
 	return 0;
 
 err_unset_hu:
+	if (hu->serdev)
+		serdev_device_close(hu->serdev);
 #ifdef CONFIG_PM
+	else
 		bcm->dev->hu = NULL;
 #endif
 err_free:

drivers/bluetooth/hci_intel.c

@@ -540,18 +540,15 @@ static int intel_set_baudrate(struct hci_uart *hu, unsigned int speed)
 
 static int intel_setup(struct hci_uart *hu)
 {
-	static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
-					  0x00, 0x08, 0x04, 0x00 };
 	struct intel_data *intel = hu->priv;
 	struct hci_dev *hdev = hu->hdev;
 	struct sk_buff *skb;
 	struct intel_version ver;
-	struct intel_boot_params *params;
+	struct intel_boot_params params;
 	struct list_head *p;
 	const struct firmware *fw;
-	const u8 *fw_ptr;
 	char fwname[64];
-	u32 frag_len;
+	u32 boot_param;
 	ktime_t calltime, delta, rettime;
 	unsigned long long duration;
 	unsigned int init_speed, oper_speed;
@@ -563,6 +560,12 @@ static int intel_setup(struct hci_uart *hu)
 	hu->hdev->set_diag = btintel_set_diag;
 	hu->hdev->set_bdaddr = btintel_set_bdaddr;
 
+	/* Set the default boot parameter to 0x0 and it is updated to
+	 * SKU specific boot parameter after reading Intel_Write_Boot_Params
+	 * command while downloading the firmware.
+	 */
+	boot_param = 0x00000000;
+
 	calltime = ktime_get();
 
 	if (hu->init_speed)
@@ -656,85 +659,95 @@ static int intel_setup(struct hci_uart *hu)
 	/* Read the secure boot parameters to identify the operating
 	 * details of the bootloader.
 	 */
-	skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_CMD_TIMEOUT);
-	if (IS_ERR(skb)) {
-		bt_dev_err(hdev, "Reading Intel boot parameters failed (%ld)",
-			   PTR_ERR(skb));
-		return PTR_ERR(skb);
-	}
-
-	if (skb->len != sizeof(*params)) {
-		bt_dev_err(hdev, "Intel boot parameters size mismatch");
-		kfree_skb(skb);
-		return -EILSEQ;
-	}
-
-	params = (struct intel_boot_params *)skb->data;
-	if (params->status) {
-		bt_dev_err(hdev, "Intel boot parameters command failure (%02x)",
-			   params->status);
-		err = -bt_to_errno(params->status);
-		kfree_skb(skb);
+	err = btintel_read_boot_params(hdev, &params);
+	if (err)
 		return err;
-	}
-
-	bt_dev_info(hdev, "Device revision is %u",
-		    le16_to_cpu(params->dev_revid));
-
-	bt_dev_info(hdev, "Secure boot is %s",
-		    params->secure_boot ? "enabled" : "disabled");
-
-	bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
-		params->min_fw_build_nn, params->min_fw_build_cw,
-		2000 + params->min_fw_build_yy);
 
 	/* It is required that every single firmware fragment is acknowledged
 	 * with a command complete event. If the boot parameters indicate
 	 * that this bootloader does not send them, then abort the setup.
 	 */
-	if (params->limited_cce != 0x00) {
+	if (params.limited_cce != 0x00) {
 		bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
-			   params->limited_cce);
-		kfree_skb(skb);
+			   params.limited_cce);
 		return -EINVAL;
 	}
 
 	/* If the OTP has no valid Bluetooth device address, then there will
 	 * also be no valid address for the operational firmware.
 	 */
-	if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
+	if (!bacmp(&params.otp_bdaddr, BDADDR_ANY)) {
 		bt_dev_info(hdev, "No device address configured");
 		set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
 	}
 
 	/* With this Intel bootloader only the hardware variant and device
-	 * revision information are used to select the right firmware.
+	 * revision information are used to select the right firmware for SfP
+	 * and WsP.
 	 *
 	 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
 	 *
 	 * Currently the supported hardware variants are:
 	 *   11 (0x0b) for iBT 3.0 (LnP/SfP)
+	 *   12 (0x0c) for iBT 3.5 (WsP)
+	 *
+	 * For ThP/JfP and for future SKU's, the FW name varies based on HW
+	 * variant, HW revision and FW revision, as these are dependent on CNVi
+	 * and RF Combination.
+	 *
+	 *   18 (0x12) for iBT3.5 (ThP/JfP)
+	 *
+	 * The firmware file name for these will be
+	 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
+	 *
 	 */
+	switch (ver.hw_variant) {
+	case 0x0b:      /* SfP */
+	case 0x0c:      /* WsP */
 		snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
 			 le16_to_cpu(ver.hw_variant),
-		le16_to_cpu(params->dev_revid));
+			 le16_to_cpu(params.dev_revid));
+		break;
+	case 0x12:      /* ThP */
+		snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
+			 le16_to_cpu(ver.hw_variant),
+			 le16_to_cpu(ver.hw_revision),
+			 le16_to_cpu(ver.fw_revision));
+		break;
+	default:
+		bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
+			   ver.hw_variant);
+		return -EINVAL;
+	}
 
 	err = request_firmware(&fw, fwname, &hdev->dev);
 	if (err < 0) {
 		bt_dev_err(hdev, "Failed to load Intel firmware file (%d)",
 			   err);
-		kfree_skb(skb);
 		return err;
 	}
 
 	bt_dev_info(hdev, "Found device firmware: %s", fwname);
 
 	/* Save the DDC file name for later */
+	switch (ver.hw_variant) {
+	case 0x0b:      /* SfP */
+	case 0x0c:      /* WsP */
 		snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
 			 le16_to_cpu(ver.hw_variant),
-		le16_to_cpu(params->dev_revid));
-
-	kfree_skb(skb);
+			 le16_to_cpu(params.dev_revid));
+		break;
+	case 0x12:      /* ThP */
+		snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
+			 le16_to_cpu(ver.hw_variant),
+			 le16_to_cpu(ver.hw_revision),
+			 le16_to_cpu(ver.fw_revision));
+		break;
+	default:
+		bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
+			   ver.hw_variant);
+		return -EINVAL;
+	}
 
 	if (fw->size < 644) {
 		bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
@@ -745,70 +758,10 @@ static int intel_setup(struct hci_uart *hu)
 
 	set_bit(STATE_DOWNLOADING, &intel->flags);
 
-	/* Start the firmware download transaction with the Init fragment
-	 * represented by the 128 bytes of CSS header.
-	 */
-	err = btintel_secure_send(hdev, 0x00, 128, fw->data);
-	if (err < 0) {
-		bt_dev_err(hdev, "Failed to send firmware header (%d)", err);
-		goto done;
-	}
-
-	/* Send the 256 bytes of public key information from the firmware
-	 * as the PKey fragment.
-	 */
-	err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
-	if (err < 0) {
-		bt_dev_err(hdev, "Failed to send firmware public key (%d)",
-			   err);
-		goto done;
-	}
-
-	/* Send the 256 bytes of signature information from the firmware
-	 * as the Sign fragment.
-	 */
-	err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
-	if (err < 0) {
-		bt_dev_err(hdev, "Failed to send firmware signature (%d)",
-			   err);
-		goto done;
-	}
-
-	fw_ptr = fw->data + 644;
-	frag_len = 0;
-
-	while (fw_ptr - fw->data < fw->size) {
-		struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
-
-		frag_len += sizeof(*cmd) + cmd->plen;
-
-		bt_dev_dbg(hdev, "Patching %td/%zu", (fw_ptr - fw->data),
-			   fw->size);
-
-		/* The parameter length of the secure send command requires
-		 * a 4 byte alignment. It happens so that the firmware file
-		 * contains proper Intel_NOP commands to align the fragments
-		 * as needed.
-		 *
-		 * Send set of commands with 4 byte alignment from the
-		 * firmware data buffer as a single Data fragement.
-		 */
-		if (frag_len % 4)
-			continue;
-
-		/* Send each command from the firmware data buffer as
-		 * a single Data fragment.
-		 */
-		err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
-		if (err < 0) {
-			bt_dev_err(hdev, "Failed to send firmware data (%d)",
-				   err);
+	/* Start firmware downloading and get boot parameter */
+	err = btintel_download_firmware(hdev, fw, &boot_param);
+	if (err < 0)
 		goto done;
-		}
-
-		fw_ptr += frag_len;
-		frag_len = 0;
-	}
 
 	set_bit(STATE_FIRMWARE_LOADED, &intel->flags);
 
@@ -869,12 +822,9 @@ static int intel_setup(struct hci_uart *hu)
 
 	set_bit(STATE_BOOTING, &intel->flags);
 
-	skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
-			     HCI_CMD_TIMEOUT);
-	if (IS_ERR(skb))
-		return PTR_ERR(skb);
-
-	kfree_skb(skb);
+	err = btintel_send_intel_reset(hdev, boot_param);
+	if (err)
+		return err;
 
 	/* The bootloader will not indicate when the device is ready. This
 	 * is done by the operational firmware sending bootup notification.

drivers/tty/serdev/core.c

@@ -225,6 +225,18 @@ void serdev_device_set_flow_control(struct serdev_device *serdev, bool enable)
 }
 EXPORT_SYMBOL_GPL(serdev_device_set_flow_control);
 
+int serdev_device_set_parity(struct serdev_device *serdev,
+			     enum serdev_parity parity)
+{
+	struct serdev_controller *ctrl = serdev->ctrl;
+
+	if (!ctrl || !ctrl->ops->set_parity)
+		return -ENOTSUPP;
+
+	return ctrl->ops->set_parity(ctrl, parity);
+}
+EXPORT_SYMBOL_GPL(serdev_device_set_parity);
+
 void serdev_device_wait_until_sent(struct serdev_device *serdev, long timeout)
 {
 	struct serdev_controller *ctrl = serdev->ctrl;

drivers/tty/serdev/serdev-ttyport.c

@@ -190,6 +190,29 @@ static void ttyport_set_flow_control(struct serdev_controller *ctrl, bool enable
 	tty_set_termios(tty, &ktermios);
 }
 
+static int ttyport_set_parity(struct serdev_controller *ctrl,
+			      enum serdev_parity parity)
+{
+	struct serport *serport = serdev_controller_get_drvdata(ctrl);
+	struct tty_struct *tty = serport->tty;
+	struct ktermios ktermios = tty->termios;
+
+	ktermios.c_cflag &= ~(PARENB | PARODD | CMSPAR);
+	if (parity != SERDEV_PARITY_NONE) {
+		ktermios.c_cflag |= PARENB;
+		if (parity == SERDEV_PARITY_ODD)
+			ktermios.c_cflag |= PARODD;
+	}
+
+	tty_set_termios(tty, &ktermios);
+
+	if ((tty->termios.c_cflag & (PARENB | PARODD | CMSPAR)) !=
+	    (ktermios.c_cflag & (PARENB | PARODD | CMSPAR)))
+		return -EINVAL;
+
+	return 0;
+}
+
 static void ttyport_wait_until_sent(struct serdev_controller *ctrl, long timeout)
 {
 	struct serport *serport = serdev_controller_get_drvdata(ctrl);
@@ -227,6 +250,7 @@ static const struct serdev_controller_ops ctrl_ops = {
 	.open = ttyport_open,
 	.close = ttyport_close,
 	.set_flow_control = ttyport_set_flow_control,
+	.set_parity = ttyport_set_parity,
 	.set_baudrate = ttyport_set_baudrate,
 	.wait_until_sent = ttyport_wait_until_sent,
 	.get_tiocm = ttyport_get_tiocm,

include/linux/serdev.h

@@ -76,6 +76,12 @@ static inline struct serdev_device_driver *to_serdev_device_driver(struct device
 	return container_of(d, struct serdev_device_driver, driver);
 }
 
+enum serdev_parity {
+	SERDEV_PARITY_NONE,
+	SERDEV_PARITY_EVEN,
+	SERDEV_PARITY_ODD,
+};
+
 /*
  * serdev controller structures
  */
@@ -86,6 +92,7 @@ struct serdev_controller_ops {
 	int (*open)(struct serdev_controller *);
 	void (*close)(struct serdev_controller *);
 	void (*set_flow_control)(struct serdev_controller *, bool);
+	int (*set_parity)(struct serdev_controller *, enum serdev_parity);
 	unsigned int (*set_baudrate)(struct serdev_controller *, unsigned int);
 	void (*wait_until_sent)(struct serdev_controller *, long);
 	int (*get_tiocm)(struct serdev_controller *);
@@ -298,6 +305,9 @@ static inline int serdev_device_set_rts(struct serdev_device *serdev, bool enabl
 		return serdev_device_set_tiocm(serdev, 0, TIOCM_RTS);
 }
 
+int serdev_device_set_parity(struct serdev_device *serdev,
+			     enum serdev_parity parity);
+
 /*
  * serdev hooks into TTY core
  */