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From: Hao Qin <hao.qin@mediatek.com>
To: Marcel Holtmann <marcel@holtmann.org>,
	Johan Hedberg <johan.hedberg@gmail.com>,
	Luiz Von Dentz <luiz.dentz@gmail.com>
Cc: Sean Wang <sean.wang@mediatek.com>,
	Deren Wu <deren.Wu@mediatek.com>,
	Aaron Hou <aaron.hou@mediatek.com>,
	Chris Lu <chris.lu@mediatek.com>,
	"Steve Lee" <steve.lee@mediatek.com>,
	linux-bluetooth <linux-bluetooth@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-mediatek <linux-mediatek@lists.infradead.org>,
	Hao Qin <hao.qin@mediatek.com>
Subject: [PATCH] Bluetooth: btusb: mediatek: Support auto revert for MT7922
Date: Fri, 12 Apr 2024 17:57:13 +0800	[thread overview]
Message-ID: <20240412095713.25641-1-hao.qin@mediatek.com> (raw)

Add support for auto reverting MT7922 during reset process.

Signed-off-by: Hao Qin <hao.qin@mediatek.com>
---
 drivers/bluetooth/btusb.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 4c0cc13adb47..0ad96ec8d31d 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3032,7 +3032,16 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
 	usb_kill_anchored_urbs(&data->tx_anchor);
 	mediatek = hci_get_priv(hdev);
 
-	if (mediatek->dev_id == 0x7925) {
+	if (mediatek->dev_id == 0x7922) {
+		btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
+		val |= 0x00002020;
+		btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val);
+		btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
+		btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
+		val |= BIT(0);
+		btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val);
+		msleep(100);
+	} else if (mediatek->dev_id == 0x7925) {
 		btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
 		val |= (1 << 5);
 		btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
@@ -3072,6 +3081,9 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
 	if (err < 0)
 		bt_dev_err(hdev, "Reset timeout");
 
+	if (mediatek->dev_id == 0x7922)
+		btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
+
 	btusb_mtk_id_get(data, 0x70010200, &val);
 	if (!val)
 		bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
-- 
2.18.0


             reply	other threads:[~2024-04-12  9:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-12  9:57 Hao Qin [this message]
2024-04-12 10:32 ` Bluetooth: btusb: mediatek: Support auto revert for MT7922 bluez.test.bot
2024-04-17 21:17 ` [PATCH] " Luiz Augusto von Dentz
2024-05-07 19:29   ` Sean Wang

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