From b904eebfd45029b20f9f312b430f2a972ec3c67b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@google.com>
Date: Tue, 14 May 2024 12:45:26 +0000
Subject: [PATCH] Revert "Bluetooth: btqca: Add WCN3988 support"

This reverts commit 940963613275a39fd693fb1969c1c6fbc0798a21 which is
commit f904feefe60c28b6852d5625adc4a2c39426a2d9 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I1ca051a8ba0f510b7c48a13856ed54859d09f67c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
---
 drivers/bluetooth/btqca.c   | 13 ++-----------
 drivers/bluetooth/btqca.h   | 12 ++----------
 drivers/bluetooth/hci_qca.c | 12 ------------
 3 files changed, 4 insertions(+), 33 deletions(-)

diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index d775402b33df..d40a6041c48c 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -594,20 +594,14 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	/* Firmware files to download are based on ROM version.
 	 * ROM version is derived from last two bytes of soc_ver.
 	 */
-	if (soc_type == QCA_WCN3988)
-		rom_ver = ((soc_ver & 0x00000f00) >> 0x05) | (soc_ver & 0x0000000f);
-	else
-		rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
+	rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
 
 	if (soc_type == QCA_WCN6750)
 		qca_send_patch_config_cmd(hdev);
 
 	/* Download rampatch file */
 	config.type = TLV_TYPE_PATCH;
-	if (soc_type == QCA_WCN3988) {
-		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/apbtfw%02x.tlv", rom_ver);
-	} else if (qca_is_wcn399x(soc_type)) {
+	if (qca_is_wcn399x(soc_type)) {
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/crbtfw%02x.tlv", rom_ver);
 	} else if (soc_type == QCA_QCA6390) {
@@ -642,9 +636,6 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	if (firmware_name)
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/%s", firmware_name);
-	else if (soc_type == QCA_WCN3988)
-		snprintf(config.fwname, sizeof(config.fwname),
-			 "qca/apnv%02x.bin", rom_ver);
 	else if (qca_is_wcn399x(soc_type)) {
 		if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID) {
 			snprintf(config.fwname, sizeof(config.fwname),
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index fc6cf314eb0e..b884095bcd9d 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -142,7 +142,6 @@ enum qca_btsoc_type {
 	QCA_INVALID = -1,
 	QCA_AR3002,
 	QCA_ROME,
-	QCA_WCN3988,
 	QCA_WCN3990,
 	QCA_WCN3998,
 	QCA_WCN3991,
@@ -163,15 +162,8 @@ 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)
 {
-	switch (soc_type) {
-	case QCA_WCN3988:
-	case QCA_WCN3990:
-	case QCA_WCN3991:
-	case QCA_WCN3998:
-		return true;
-	default:
-		return false;
-	}
+	return soc_type == QCA_WCN3990 || soc_type == QCA_WCN3991 ||
+	       soc_type == QCA_WCN3998;
 }
 static inline bool qca_is_wcn6750(enum qca_btsoc_type soc_type)
 {
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 746eb096c037..f217c2821b9f 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1832,17 +1832,6 @@ static const struct hci_uart_proto qca_proto = {
 	.dequeue	= qca_dequeue,
 };
 
-static const struct qca_device_data qca_soc_data_wcn3988 __maybe_unused = {
-	.soc_type = QCA_WCN3988,
-	.vregs = (struct qca_vreg []) {
-		{ "vddio", 15000  },
-		{ "vddxo", 80000  },
-		{ "vddrf", 300000 },
-		{ "vddch0", 450000 },
-	},
-	.num_vregs = 4,
-};
-
 static const struct qca_device_data qca_soc_data_wcn3990 __maybe_unused = {
 	.soc_type = QCA_WCN3990,
 	.vregs = (struct qca_vreg []) {
@@ -2368,7 +2357,6 @@ static const struct of_device_id qca_bluetooth_of_match[] = {
 	{ .compatible = "qcom,qca6174-bt" },
 	{ .compatible = "qcom,qca6390-bt", .data = &qca_soc_data_qca6390},
 	{ .compatible = "qcom,qca9377-bt" },
-	{ .compatible = "qcom,wcn3988-bt", .data = &qca_soc_data_wcn3988},
 	{ .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},
 	{ .compatible = "qcom,wcn3991-bt", .data = &qca_soc_data_wcn3991},
 	{ .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},