linux-kernel - [PATCH] Bluetooth: btrtl: Set MSFT opcode for RTL8852

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Message-Id: <20210713163641.1.I2b8f2c16fab1ba67167461372a3bdb6817673303@changeid>
Date:   Tue, 13 Jul 2021 16:37:03 +0800
From:   Archie Pusaka <apusaka@...gle.com>
To:     linux-bluetooth <linux-bluetooth@...r.kernel.org>,
        Marcel Holtmann <marcel@...tmann.org>
Cc:     CrosBT Upstreaming <chromeos-bluetooth-upstreaming@...omium.org>,
        Archie Pusaka <apusaka@...omium.org>,
        Miao-chen Chou <mcchou@...omium.org>,
        Hilda Wu <hildawu@...ltek.com>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] Bluetooth: btrtl: Set MSFT opcode for RTL8852

From: Archie Pusaka <apusaka@...omium.org>

RTL8852 support MSFT HCI extension, therefore set the proper MSFT
opcode.

Signed-off-by: Archie Pusaka <apusaka@...omium.org>
Reviewed-by: Miao-chen Chou <mcchou@...omium.org>
Reviewed-by: Hilda Wu <hildawu@...ltek.com>

---

 drivers/bluetooth/btrtl.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index cce0125ec4fd..1f8afa0244d8 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -681,11 +681,15 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 		}
 	}
 
-	/* RTL8822CE supports the Microsoft vendor extension and uses 0xFCF0
-	 * for VsMsftOpCode.
+	/* The following chips supports the Microsoft vendor extension,
+	 * therefore set the corresponding VsMsftOpCode.
 	 */
-	if (lmp_subver == RTL_ROM_LMP_8822B)
+	switch (lmp_subver) {
+	case RTL_ROM_LMP_8822B:
+	case RTL_ROM_LMP_8852A:
 		hci_set_msft_opcode(hdev, 0xFCF0);
+		break;
+	}
 
 	return btrtl_dev;
 
-- 
2.32.0.93.g670b81a890-goog