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From: <sean.wang@mediatek.com>
To: <marcel@holtmann.org>, <johan.hedberg@gmail.com>
Cc: <sean.wang@mediatek.com>, <Soul.Huang@mediatek.com>,
	<YN.Chen@mediatek.com>, <Leon.Yen@mediatek.com>,
	<Eric-SY.Chang@mediatek.com>, <Deren.Wu@mediatek.com>,
	<km.lin@mediatek.com>, <robin.chiu@mediatek.com>,
	<Eddie.Chen@mediatek.com>, <ch.yeh@mediatek.com>,
	<posh.sun@mediatek.com>, <ted.huang@mediatek.com>,
	<Eric.Liang@mediatek.com>, <Stella.Chang@mediatek.com>,
	<Tom.Chou@mediatek.com>, <steve.lee@mediatek.com>,
	<jsiuda@google.com>, <frankgor@google.com>,
	<abhishekpandit@google.com>, <michaelfsun@google.com>,
	<mcchou@chromium.org>, <shawnku@google.com>,
	<linux-bluetooth@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Yake Yang <yake.yang@mediatek.com>
Subject: [PATCH 2/2] Bluetooth: btmtksdio: fix possible FW initialization failure
Date: Fri, 13 May 2022 05:38:12 +0800	[thread overview]
Message-ID: <8ff7aed526e70f8cd05a019e94976d48992b4445.1652390894.git.objelf@gmail.com> (raw)
In-Reply-To: <e26167a3fcefdeae1151162e8676c9a467a8100d.1652390894.git.objelf@gmail.com>

From: Sean Wang <sean.wang@mediatek.com>

According to FW advised sequence, mt7921s need to re-acquire privilege
immediately after the firmware download is complete before normal running.
Otherwise, it is still possible the bus may be stuck in an abnormal status
that causes FW initialization failure in the current driver.

Fixes: 752aea58489f ("Bluetooth: mt7921s: fix bus hang with wrong privilege")
Co-developed-by: Yake Yang <yake.yang@mediatek.com>
Signed-off-by: Yake Yang <yake.yang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/bluetooth/btmtksdio.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 26e27fd79a21..d6700efcfe8c 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -864,6 +864,14 @@ static int mt79xx_setup(struct hci_dev *hdev, const char *fwname)
 		return err;
 	}
 
+	err = btmtksdio_fw_pmctrl(bdev);
+	if (err < 0)
+		return err;
+
+	err = btmtksdio_drv_pmctrl(bdev);
+	if (err < 0)
+		return err;
+
 	/* Enable Bluetooth protocol */
 	wmt_params.op = BTMTK_WMT_FUNC_CTRL;
 	wmt_params.flag = 0;
@@ -1109,14 +1117,6 @@ static int btmtksdio_setup(struct hci_dev *hdev)
 		if (err < 0)
 			return err;
 
-		err = btmtksdio_fw_pmctrl(bdev);
-		if (err < 0)
-			return err;
-
-		err = btmtksdio_drv_pmctrl(bdev);
-		if (err < 0)
-			return err;
-
 		/* Enable SCO over I2S/PCM */
 		err = btmtksdio_sco_setting(hdev);
 		if (err < 0) {
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: <sean.wang@mediatek.com>
To: <marcel@holtmann.org>, <johan.hedberg@gmail.com>
Cc: <sean.wang@mediatek.com>, <Soul.Huang@mediatek.com>,
	<YN.Chen@mediatek.com>, <Leon.Yen@mediatek.com>,
	<Eric-SY.Chang@mediatek.com>, <Deren.Wu@mediatek.com>,
	<km.lin@mediatek.com>,  <robin.chiu@mediatek.com>,
	<Eddie.Chen@mediatek.com>, <ch.yeh@mediatek.com>,
	<posh.sun@mediatek.com>, <ted.huang@mediatek.com>,
	<Eric.Liang@mediatek.com>,  <Stella.Chang@mediatek.com>,
	<Tom.Chou@mediatek.com>, <steve.lee@mediatek.com>,
	<jsiuda@google.com>, <frankgor@google.com>,
	<abhishekpandit@google.com>, <michaelfsun@google.com>,
	<mcchou@chromium.org>,  <shawnku@google.com>,
	<linux-bluetooth@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	"Yake Yang" <yake.yang@mediatek.com>
Subject: [PATCH 2/2] Bluetooth: btmtksdio: fix possible FW initialization failure
Date: Fri, 13 May 2022 05:38:12 +0800	[thread overview]
Message-ID: <8ff7aed526e70f8cd05a019e94976d48992b4445.1652390894.git.objelf@gmail.com> (raw)
In-Reply-To: <e26167a3fcefdeae1151162e8676c9a467a8100d.1652390894.git.objelf@gmail.com>

From: Sean Wang <sean.wang@mediatek.com>

According to FW advised sequence, mt7921s need to re-acquire privilege
immediately after the firmware download is complete before normal running.
Otherwise, it is still possible the bus may be stuck in an abnormal status
that causes FW initialization failure in the current driver.

Fixes: 752aea58489f ("Bluetooth: mt7921s: fix bus hang with wrong privilege")
Co-developed-by: Yake Yang <yake.yang@mediatek.com>
Signed-off-by: Yake Yang <yake.yang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/bluetooth/btmtksdio.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 26e27fd79a21..d6700efcfe8c 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -864,6 +864,14 @@ static int mt79xx_setup(struct hci_dev *hdev, const char *fwname)
 		return err;
 	}
 
+	err = btmtksdio_fw_pmctrl(bdev);
+	if (err < 0)
+		return err;
+
+	err = btmtksdio_drv_pmctrl(bdev);
+	if (err < 0)
+		return err;
+
 	/* Enable Bluetooth protocol */
 	wmt_params.op = BTMTK_WMT_FUNC_CTRL;
 	wmt_params.flag = 0;
@@ -1109,14 +1117,6 @@ static int btmtksdio_setup(struct hci_dev *hdev)
 		if (err < 0)
 			return err;
 
-		err = btmtksdio_fw_pmctrl(bdev);
-		if (err < 0)
-			return err;
-
-		err = btmtksdio_drv_pmctrl(bdev);
-		if (err < 0)
-			return err;
-
 		/* Enable SCO over I2S/PCM */
 		err = btmtksdio_sco_setting(hdev);
 		if (err < 0) {
-- 
2.25.1


_______________________________________________
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  reply	other threads:[~2022-05-12 21:38 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-12 21:38 [PATCH 1/2] Bluetooth: btmtksdio: fix the reset takes too long sean.wang
2022-05-12 21:38 ` sean.wang
2022-05-12 21:38 ` sean.wang [this message]
2022-05-12 21:38   ` [PATCH 2/2] Bluetooth: btmtksdio: fix possible FW initialization failure sean.wang
2022-05-12 22:01 ` [1/2] Bluetooth: btmtksdio: fix the reset takes too long bluez.test.bot
2022-05-13 11:21 ` [PATCH 1/2] " patchwork-bot+bluetooth
2022-05-13 11:21   ` patchwork-bot+bluetooth
2022-05-13 14:41 ` AngeloGioacchino Del Regno
2022-05-13 14:41   ` AngeloGioacchino Del Regno

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