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

…nel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: linux-bluetooth 2019-11-11

Here's one more bluetooth-next pull request for the 5.5 kernel release.

 - Several fixes for LE advertising
 - Added PM support to hci_qca driver
 - Added support for WCN3991 SoC in hci_qca driver
 - Added DT bindings for BCM43540 module
 - A few other small cleanups/fixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/broadcom-bluetooth.txt

@@ -14,6 +14,7 @@ Required properties:
    * "brcm,bcm4330-bt"
    * "brcm,bcm43438-bt"
    * "brcm,bcm4345c5"
+   * "brcm,bcm43540-bt"
 
 Optional properties:
 

drivers/bluetooth/btmtksdio.c

@@ -57,6 +57,7 @@ static const struct sdio_device_id btmtksdio_table[] = {
 	 .driver_data = (kernel_ulong_t)&mt7668_data },
 	{ }	/* Terminating entry */
 };
+MODULE_DEVICE_TABLE(sdio, btmtksdio_table);
 
 #define MTK_REG_CHLPCR		0x4	/* W1S */
 #define C_INT_EN_SET		BIT(0)

drivers/bluetooth/btqca.c

@@ -14,27 +14,41 @@
 
 #define VERSION "0.1"
 
-int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)
+int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,
+			 enum qca_btsoc_type soc_type)
 {
 	struct sk_buff *skb;
 	struct edl_event_hdr *edl;
-	struct rome_version *ver;
+	struct qca_btsoc_version *ver;
 	char cmd;
 	int err = 0;
+	u8 event_type = HCI_EV_VENDOR;
+	u8 rlen = sizeof(*edl) + sizeof(*ver);
+	u8 rtype = EDL_APP_VER_RES_EVT;
 
 	bt_dev_dbg(hdev, "QCA Version Request");
 
+	/* Unlike other SoC's sending version command response as payload to
+	 * VSE event. WCN3991 sends version command response as a payload to
+	 * command complete event.
+	 */
+	if (soc_type == QCA_WCN3991) {
+		event_type = 0;
+		rlen += 1;
+		rtype = EDL_PATCH_VER_REQ_CMD;
+	}
+
 	cmd = EDL_PATCH_VER_REQ_CMD;
 	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
-				&cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
+				&cmd, event_type, HCI_INIT_TIMEOUT);
 	if (IS_ERR(skb)) {
 		err = PTR_ERR(skb);
 		bt_dev_err(hdev, "Reading QCA version information failed (%d)",
 			   err);
 		return err;
 	}
 
-	if (skb->len != sizeof(*edl) + sizeof(*ver)) {
+	if (skb->len != rlen) {
 		bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len);
 		err = -EILSEQ;
 		goto out;
@@ -48,26 +62,29 @@ int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)
 	}
 
 	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
-	    edl->rtype != EDL_APP_VER_RES_EVT) {
+	    edl->rtype != rtype) {
 		bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
 			   edl->rtype);
 		err = -EIO;
 		goto out;
 	}
 
-	ver = (struct rome_version *)(edl->data);
+	if (soc_type == QCA_WCN3991)
+		memmove(&edl->data, &edl->data[1], sizeof(*ver));
+
+	ver = (struct qca_btsoc_version *)(edl->data);
 
 	BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
 	BT_DBG("%s: Patch  :0x%08x", hdev->name, le16_to_cpu(ver->patch_ver));
-	BT_DBG("%s: ROM    :0x%08x", hdev->name, le16_to_cpu(ver->rome_ver));
+	BT_DBG("%s: ROM    :0x%08x", hdev->name, le16_to_cpu(ver->rom_ver));
 	BT_DBG("%s: SOC    :0x%08x", hdev->name, le32_to_cpu(ver->soc_id));
 
 	/* QCA chipset version can be decided by patch and SoC
 	 * version, combination with upper 2 bytes from SoC
 	 * and lower 2 bytes from patch will be used.
 	 */
 	*soc_version = (le32_to_cpu(ver->soc_id) << 16) |
-			(le16_to_cpu(ver->rome_ver) & 0x0000ffff);
+			(le16_to_cpu(ver->rom_ver) & 0x0000ffff);
 	if (*soc_version == 0)
 		err = -EILSEQ;
 
@@ -121,7 +138,7 @@ int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
 }
 EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
 
-static void qca_tlv_check_data(struct rome_config *config,
+static void qca_tlv_check_data(struct qca_fw_config *config,
 				const struct firmware *fw)
 {
 	const u8 *data;
@@ -140,8 +157,8 @@ static void qca_tlv_check_data(struct rome_config *config,
 	BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
 	BT_DBG("Length\t\t : %d bytes", length);
 
-	config->dnld_mode = ROME_SKIP_EVT_NONE;
-	config->dnld_type = ROME_SKIP_EVT_NONE;
+	config->dnld_mode = QCA_SKIP_EVT_NONE;
+	config->dnld_type = QCA_SKIP_EVT_NONE;
 
 	switch (config->type) {
 	case TLV_TYPE_PATCH:
@@ -223,31 +240,45 @@ static void qca_tlv_check_data(struct rome_config *config,
 }
 
 static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
-				 const u8 *data, enum rome_tlv_dnld_mode mode)
+				const u8 *data, enum qca_tlv_dnld_mode mode,
+				enum qca_btsoc_type soc_type)
 {
 	struct sk_buff *skb;
 	struct edl_event_hdr *edl;
 	struct tlv_seg_resp *tlv_resp;
 	u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
 	int err = 0;
+	u8 event_type = HCI_EV_VENDOR;
+	u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp));
+	u8 rtype = EDL_TVL_DNLD_RES_EVT;
 
 	cmd[0] = EDL_PATCH_TLV_REQ_CMD;
 	cmd[1] = seg_size;
 	memcpy(cmd + 2, data, seg_size);
 
-	if (mode == ROME_SKIP_EVT_VSE_CC || mode == ROME_SKIP_EVT_VSE)
+	if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE)
 		return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
 				      cmd);
 
+	/* Unlike other SoC's sending version command response as payload to
+	 * VSE event. WCN3991 sends version command response as a payload to
+	 * command complete event.
+	 */
+	if (soc_type == QCA_WCN3991) {
+		event_type = 0;
+		rlen = sizeof(*edl);
+		rtype = EDL_PATCH_TLV_REQ_CMD;
+	}
+
 	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
-				HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
+				event_type, HCI_INIT_TIMEOUT);
 	if (IS_ERR(skb)) {
 		err = PTR_ERR(skb);
 		bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
 		return err;
 	}
 
-	if (skb->len != sizeof(*edl) + sizeof(*tlv_resp)) {
+	if (skb->len != rlen) {
 		bt_dev_err(hdev, "QCA TLV response size mismatch");
 		err = -EILSEQ;
 		goto out;
@@ -260,13 +291,19 @@ static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
 		goto out;
 	}
 
-	tlv_resp = (struct tlv_seg_resp *)(edl->data);
+	if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) {
+		bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x",
+			   edl->cresp, edl->rtype);
+		err = -EIO;
+	}
 
-	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
-	    edl->rtype != EDL_TVL_DNLD_RES_EVT || tlv_resp->result != 0x00) {
+	if (soc_type == QCA_WCN3991)
+		goto out;
+
+	tlv_resp = (struct tlv_seg_resp *)(edl->data);
+	if (tlv_resp->result) {
 		bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
 			   edl->cresp, edl->rtype, tlv_resp->result);
-		err = -EIO;
 	}
 
 out:
@@ -301,7 +338,8 @@ static int qca_inject_cmd_complete_event(struct hci_dev *hdev)
 }
 
 static int qca_download_firmware(struct hci_dev *hdev,
-				  struct rome_config *config)
+				 struct qca_fw_config *config,
+				 enum qca_btsoc_type soc_type)
 {
 	const struct firmware *fw;
 	const u8 *segment;
@@ -328,10 +366,10 @@ static int qca_download_firmware(struct hci_dev *hdev,
 		remain -= segsize;
 		/* The last segment is always acked regardless download mode */
 		if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
-			config->dnld_mode = ROME_SKIP_EVT_NONE;
+			config->dnld_mode = QCA_SKIP_EVT_NONE;
 
 		ret = qca_tlv_send_segment(hdev, segsize, segment,
-					    config->dnld_mode);
+					   config->dnld_mode, soc_type);
 		if (ret)
 			goto out;
 
@@ -344,8 +382,8 @@ static int qca_download_firmware(struct hci_dev *hdev,
 	 * decrease the BT in initialization time. Here we will inject a command
 	 * complete event to avoid a command timeout error message.
 	 */
-	if (config->dnld_type == ROME_SKIP_EVT_VSE_CC ||
-	    config->dnld_type == ROME_SKIP_EVT_VSE)
+	if (config->dnld_type == QCA_SKIP_EVT_VSE_CC ||
+	    config->dnld_type == QCA_SKIP_EVT_VSE)
 		ret = qca_inject_cmd_complete_event(hdev);
 
 out:
@@ -382,7 +420,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 		   enum qca_btsoc_type soc_type, u32 soc_ver,
 		   const char *firmware_name)
 {
-	struct rome_config config;
+	struct qca_fw_config config;
 	int err;
 	u8 rom_ver = 0;
 
@@ -405,7 +443,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 			 "qca/rampatch_%08x.bin", soc_ver);
 	}
 
-	err = qca_download_firmware(hdev, &config);
+	err = qca_download_firmware(hdev, &config, soc_type);
 	if (err < 0) {
 		bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
 		return err;
@@ -426,7 +464,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/nvm_%08x.bin", soc_ver);
 
-	err = qca_download_firmware(hdev, &config);
+	err = qca_download_firmware(hdev, &config, soc_type);
 	if (err < 0) {
 		bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
 		return err;

drivers/bluetooth/btqca.h

@@ -56,24 +56,24 @@ enum qca_baudrate {
 	QCA_BAUDRATE_RESERVED
 };
 
-enum rome_tlv_dnld_mode {
-	ROME_SKIP_EVT_NONE,
-	ROME_SKIP_EVT_VSE,
-	ROME_SKIP_EVT_CC,
-	ROME_SKIP_EVT_VSE_CC
+enum qca_tlv_dnld_mode {
+	QCA_SKIP_EVT_NONE,
+	QCA_SKIP_EVT_VSE,
+	QCA_SKIP_EVT_CC,
+	QCA_SKIP_EVT_VSE_CC
 };
 
-enum rome_tlv_type {
+enum qca_tlv_type {
 	TLV_TYPE_PATCH = 1,
 	TLV_TYPE_NVM
 };
 
-struct rome_config {
+struct qca_fw_config {
 	u8 type;
 	char fwname[64];
 	uint8_t user_baud_rate;
-	enum rome_tlv_dnld_mode dnld_mode;
-	enum rome_tlv_dnld_mode dnld_type;
+	enum qca_tlv_dnld_mode dnld_mode;
+	enum qca_tlv_dnld_mode dnld_type;
 };
 
 struct edl_event_hdr {
@@ -82,10 +82,10 @@ struct edl_event_hdr {
 	__u8 data[0];
 } __packed;
 
-struct rome_version {
+struct qca_btsoc_version {
 	__le32 product_id;
 	__le16 patch_ver;
-	__le16 rome_ver;
+	__le16 rom_ver;
 	__le32 soc_id;
 } __packed;
 
@@ -125,6 +125,7 @@ enum qca_btsoc_type {
 	QCA_AR3002,
 	QCA_ROME,
 	QCA_WCN3990,
+	QCA_WCN3991,
 	QCA_WCN3998,
 };
 
@@ -134,12 +135,14 @@ int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 		   enum qca_btsoc_type soc_type, u32 soc_ver,
 		   const char *firmware_name);
-int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version);
+int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,
+			 enum qca_btsoc_type);
 int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 int qca_send_pre_shutdown_cmd(struct hci_dev *hdev);
 static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)
 {
-	return soc_type == QCA_WCN3990 || soc_type == QCA_WCN3998;
+	return soc_type == QCA_WCN3990 || soc_type == QCA_WCN3991 ||
+	       soc_type == QCA_WCN3998;
 }
 #else
 
@@ -155,7 +158,8 @@ static inline int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	return -EOPNOTSUPP;
 }
 
-static inline int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)
+static inline int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,
+				       enum qca_btsoc_type)
 {
 	return -EOPNOTSUPP;
 }

drivers/bluetooth/btrtl.c

@@ -778,7 +778,7 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
 			rtl_dev_dbg(hdev, "skipping config entry 0x%x (len %u)",
 				   le16_to_cpu(entry->offset), entry->len);
 			break;
-		};
+		}
 
 		i += sizeof(*entry) + entry->len;
 	}

drivers/bluetooth/hci_bcm.c

@@ -1424,6 +1424,7 @@ static const struct of_device_id bcm_bluetooth_of_match[] = {
 	{ .compatible = "brcm,bcm4345c5" },
 	{ .compatible = "brcm,bcm4330-bt" },
 	{ .compatible = "brcm,bcm43438-bt" },
+	{ .compatible = "brcm,bcm43540-bt" },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, bcm_bluetooth_of_match);

drivers/bluetooth/hci_bcsp.c

@@ -591,6 +591,7 @@ static int bcsp_recv(struct hci_uart *hu, const void *data, int count)
 			if (*ptr == 0xc0) {
 				BT_ERR("Short BCSP packet");
 				kfree_skb(bcsp->rx_skb);
+				bcsp->rx_skb = NULL;
 				bcsp->rx_state = BCSP_W4_PKT_START;
 				bcsp->rx_count = 0;
 			} else
@@ -606,6 +607,7 @@ static int bcsp_recv(struct hci_uart *hu, const void *data, int count)
 			    bcsp->rx_skb->data[2])) != bcsp->rx_skb->data[3]) {
 				BT_ERR("Error in BCSP hdr checksum");
 				kfree_skb(bcsp->rx_skb);
+				bcsp->rx_skb = NULL;
 				bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
 				bcsp->rx_count = 0;
 				continue;
@@ -630,6 +632,7 @@ static int bcsp_recv(struct hci_uart *hu, const void *data, int count)
 				       bscp_get_crc(bcsp));
 
 				kfree_skb(bcsp->rx_skb);
+				bcsp->rx_skb = NULL;
 				bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
 				bcsp->rx_count = 0;
 				continue;